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HANDICAP CONDITIONS AND THEIR
MANAGEMENT
Developmental disability is not a term denoting clinical diagnosis
but a grouping, established for the purpose of planning programme. Terms
like mental retardation and epilepsy, on the other hand imply specific
clinical diagnosis that fall into broad grouping know as developmental
disabilities.
The term handicapped in somewhat more inclusive than
developmental disabilities but it is not the most acceptable term.
Disabled is preferred and includes all forms of so called
handicapping conditions.
The dental condition of handicapped children may be directly or
indirectly related to their physical or mental disabilities. The child born
with cleft lip and palate or both may suffer from dental problems of great
complexity and severity. MR children and those with cerebral palsy heart
disease and bleeding disorders may not have specific dental problems but
their physical or mental handicappers often hinder good oral hygiene and
dietary habits, thereby creating a serious threat to their oral health.
Defination
A disabled child is one who has mental, physical, medical, or social
conditions that prevents the child from achieving full potential when
compared to other children of the same age.
WHO – defines handicapped individual as one who over an appreciable
time is prevented by physical or mental condition from full participation in
normal activities of his age group, including those of a social, recreational,
educational, and vocational nature.
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American Public Health Association (APHA)
“A child who cannot within limits play, learn, work, or do things
other children of his age can do, he is hindered in achieving his full
physical, mental and social potentialities”.
Harris defined 3 terms:
1) Impairment – lacking part of body or all limbs or having defective
limbs, organ or mechanism of body.
2) Disablement- in loss or reduction in functional ability.
3) Handicap – is the disadvantage or restriction caused by disability.
Mental Handicap
Mental handicap is states of arrested or incomplete development of
mind.
Physical Handicap
WHO (1952) states that child one who over an appreciable period of
time is prevented by physical or mental conditions from full participation
compared to children of same age group including social, recreational,
vocational nature.
Classification
I) Franks and Winter (1974)
a) Blind or partially sited.
b) Deaf or partially deaf.
c) Educationally subnormal.
d) Maladjusted.
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e) Epileptic.
f) Physically handicapped.
g) Defect of speech.
h) Senile.
II) Holloway and Swallow (1982)
Divided into 3 categories:
a) Mental handicap.
b) Physical handicap.
c) Medical disability or disabilities.
III) Nowak (1964)
Classified into
a) Physically handicapped.
b) Mental retardation.
c) Congenital defect (SABE, Fallots tetralogy).
d) Metabolic and systemic disorders e.g., DM.
e) Convulsive disorders.
f) Childhood autism.
g) Blind and deaf.
h) Hemophilia.
Management of a handicapped child during dental treatment
Since hospital visits or previous appointments with physician
frequently result in the development of apprehension in the patient,
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additional time with the parent and child is needed to establish rapport and
dispel anxiety.
If patient cooperation can’t be obtained, the dentist must consider
alternatives such as physical restraints to perform dental procedures.
Physical restraints
Physical restraint is only one means of behaviour control to achieve
an adequate level of dental treatment. Parents must be uniformed and given
consent before use of physical restraints.
Physical restraints is useful for managing extremely resistant
patients who need dental care.
Common mechanical aids for maintaining the mouth open are:
- Padded and wrapped tongue blades.
- Molt mouth prop – allows accessability to opposite side of the
mouth and operates on reverse scissor action.
Disadvantages – Lip and palatal laceration and luxation of teeth.
Finger guard – It fits on the dentists finger.
Disadvantage – Limited mobility of dentists hand.
Rubber bite block (Mckesson bite blocks)
These fit on occlusal surfaces of the teeth and stabilize the mouth in
open position.
Body control is gained through variety of methods and techniques like:
Body
- Papoose board.
- Triangular sheet.
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- Pedi wrap.
- Bean bag dental chair.
- Extra assistant.
Extremities
- Posey straps.
- Velcro straps.
- Towel and tape.
- Extra assistant.
Head
- Forearm body support.
- Head positioner.
- Plastic bowl.
Physical restraints should never be used as punishment. An
explanation of their benefits should be presented by the dentist before their
use. The mouth prop can be identified as “tooth chair”, pediwrap as “safety
robe” and restraining strap as safety but careful explanation should be
given to patients, that physical restraints minimizes accidental injury and
allow the needed dental work to be done.
Prevention of handicapped child
Prevention is the most important consideration in ensuring good
dental health for any dental patient.
1) Home care – control of plaque, tooth brushing and flossing.
2) Diet and nutritional counseling.
Home care
The parents have a initial responsibility for establishing good oral
hygienic in home.
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- Reinforcement of good home dental care and follow up
observations can be provided through news papers, radio, TV.
- If child is institutionalized, the staff should be instructed in the
proper dental care programme.
- Although independent brushing is not contraindicated, parents and
staff should known that unsurprised oral hygiene procedures in
disabled children can have serious dental consequences.
- Since disabled patients have gross motor deficiencies, thus ability to
brush is hampered. One technique often recommended is the
horizontal scrub method because it is easy and yielded good result.
Diet and nutrition:
Diet and nutrition influence dental caries by affecting the types and
virulence of the microorganism in dental plaque, the resistance of teeth and
supporting structures and properties of saliva in oral cavity e.g. conditions
associated with difficulty in swallowing, such as severe cerebral palsy, may
require patient on liquid diet.
Particular emphasis should be placed on discontinuation of bottle by
12 months of age after teeth begin to erupt, to decrease the likelihood of
nursing caries.
TYPES OF TRANSFER
1) Slide board transfer.
2) One person transfer
3) Two person transfer.
1) Slide border transfer – covered for patients who have good upper
body strength and control but little or low lower body strength:
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a) Remove footrests and side arm nail.
b) Raise dental chair arm.
c) Place the wheel chain with brakes as close as to the dental
chair, is the patient is hemiplegic position dental chair to his
strong side.
d) Adjust height of the dental chair corresponding to the height
of the wheel chair.
e) Patients and eat but and place slide board under the patient.
f) Keep wheel chair from tipping while patient transfers.
g) Place patients legs into position in the dental chair once he
has transfer.
2) One person transfer – for patients who have moderate strength or
body control, but may fluid slide board to tracing – paraplegic,
patients with cerebral palsy, muscular dystrophy.
a) Remove footrests on wheel chair and side arm.
b) Raise the arm of dental chair.
c) Place the wheel chair at approximately 30° angle to the
dental chair to facilitate kivotar type motion during transfer.
d) Sit the brakes and adjust the height of dental corresponding
to the wheel chair.
e) Infaster, patients seat belts and block the patients knee and
foot closest to the dental chair with your knee and foot closes
to dental chair.
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f) Have the patients place his hands around your neck while
you hold patients waste or belt.
g) On the predetermined signal help the patient stand, using his
blocked knee and food as a pivot.
h) Slowly pivot the direction of the dental chair and let the
patient down into the chair.
i) Place patients legs and body in proper position in the chair.
3) Two person transfer – used for patients with severely limited motor
function in all extremities when using this teeth remember to keep
the back and left with the legs.
a. Follow ‘1’ through ‘7’ for the slide board transfer.
b. Remove the head rest on the dental chair.
c. One person approaches the patient from behind and has the patients
cross his arms by possible, place your arm under the patients arm
fits and grab the opposite wrist with each hand.
a) The second person is responsible for lifting and guiding the
lower limbs and should bend at the legs so as to lift with the
legs, not the back.
b) On a predetermined signal ask the patient to pur his elbows
into his body and both persons doing the transfer lift the
patient straight up stop for a second before you move
laterally to the dental chair.
c) Move laterally to dental chair, making so to clear any
obstacles and lower the patient.
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Maintain support of the patients head until the dental chair headrest
is replaced.
MENTAL RETARDATION (MR)
Definations
Mentally challenged child-American Association of Mental
Deficiency (AAMD) and reported by Holmes et al  “subaverage general
intellectual functioning which originates during the developmental period
and is associated with impairment in adaptive behaviour.
MR is general term applied to persons whose intellectual
development is significantly lower than that of normal persons and whose
ability to adapt to their environment is consequently limited.
Capute – defined subaverage general intellectual functioning “as
developmental or intelligence quotient (IQ) that is below 70 and represents
2 or more standard deviation (ISD=15 or 16 patients) from a mean of 100.
When this level of intellectual functioning exists concurrently with
“impairment in adaptive behaviour” the inference is that the MR person
does not possess the independence and social responsibility excepted
within age and cultural group with the limit of 18 years of age.
Thus, to diagnose MR – he should possess:
1) An IQ score of more than 2 SD below the mean (IQ below 70).
2) An accompanying impairment in adaptive behaviour.
3) Manifestations of both before 18 years of age.
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Classification
1) Mildly retarded – is one, who because of low intelligence, cannot
derive full benefit from regular education. In academic environment
these children are classified as educable mentally retarded (EMR).
Educational programs for such children are generally simplified
versions of regular school program and usually lead to literacy and
attainment of necessary skill for employment.
Most children (80%) of them in this group will function
acceptably as adults.
2) Moderately retarded – children who are capable of some education
and partial independence but who are not accepted to experience full
independence as adults. Educational programs for such children,
who are known as Trainable mentally retarded (TMR). Focus on
basic skills, classification are often designed, furnished like home
and the curriculum includes, dressing, grooming, cooking, table
setting, feeding and cleaning. These children leave in a sheltered
home with trained personnel.
Classification of MR
Degree
of MR
IQ School
classification
Communication Special
requirements
SB WISC-R
Mild 67-52 69-55 EMR (Educable
MR)
Should be able
to speak well,
enough for
communication
Treat as normal
child, mild sedation
or nitrous oxide
sedation
Moderat
e
51-36 54-40 TMR
(trainable)
Vocabulary
language skills
such that can
communicate at
Mild to moderate
sedations restraints
and reinforcements,
GA in severe dental
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basic level decay.
Severe or
profound
35 and
below
39 and
below
Non-trainable Mute or
communication
in grunts, no
skills
Same as for
moderately retarded
Classified MR into:
1) Idiot – IQ below 25
2) Imbecile – IQ 25 to 50
3) Moron – IQ 50 to 20
According AAMD
1) Mildly or educably retarded – IQ 69 to 55
2) Moderately or trainably retarded IQ 54 to 40
3) Severely retarded – IQ 39 to 25
4) Profoundly retarded – IQ below 25
WHO divided into 3 categories:
1) Mild subnormality with IQ of 50 to 69 and mental age in adult 8 to
12 years.
2) Moderately subnormality with IQ of 20 to 49 and mental age in
adult 3 to 7 years.
3) Severe subnormality with IQ 0 to 19 and mental age in adult g 0 to 2
years.
3) Severely or profoundly retarded
The child is often not trainable and requires supervision by
trained support personnel. These are confined to institutions. They
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communicate with grunts, they lack communicable skills or they are
mute.
Etiology
The etiologic classifications:
1) Prenatal
Genetic diseases.
Maternal and fetal infections.
Kernicterus
Fetal alcohol syndrome.
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2) Natal
Birth injuries
Infection
Cerebral trauma
Hemorrhage
Anoxia
Hypoglycemia
3) Postnatal
Cerebral infections.
Cerebral trauma
Poisoning
Cerebral vascular accidents.
Post immunization encephalopathy
Malnutrition
Dental treatment for MR
Providing dental treatment for MR person requires adjusting to
social, intellectual and emotional immaturity.
The dentist should assess the degree of MR by consulting the
patients physician.
The following procedure have proved beneficial in establishing
dentist-patient rapport.
1) Give a brief tour of the office before attempting treatment. Introduce
the patient to the staff. This will reduce the fear of unknow.
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2) Speak slowly and in simple terms. Make sure the patient has
understood the explanations.
3) Give one instruction at a time. Reward the patient after successful
completion of procedure.
4) Listen carefully to the patient, as the MR persons have less
communicative skill and hence the dentist must be sensitive to the
gestures.
5) Keep appointment short. Gradually progress to the different
procedures.
6) Schedule the patient early in the day.
7) The medical history provides information regarding the cause and
extent of the patients retardation.
8) Premedications can be helpful in allowing the anxieties of the
retarded patient decrease.
EPILEPSY
The term epilepsy, which refers to a symptom, not a disease, is of
Greek origin and means “to Seize”. Various disorders may cause abnormal
neuronal discharge in the brain that may induce a seizure.
Etiology
Nelson et al described seizures disorders in children, divided into 2
groups idiopathic and symptomatic.
In idiopathic- the epilepsies cannot be attributed to demonstrable
structural lesion of the brain and are frequently a genetic origin.
In symptomatic – group associated with pathology of the brain due to
developmental anamolies, injury or disease of the brain.
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Seizures can be classified:
1) Grand mal seizures
They are generalized, usually occurring with tonic and clonic phases
of muscular spasm.
- Their onset is rapid.
- The patient loses consciousness and becomes pale.
- Pupils dilate, eyeballs roll upwards or to one side.
- There is rapid contraction of jaw muscles.
- micturation and defecation may occur.
- Patients experiences cyanosis during tonic phase (contraction of
muscles lasts for 20-40 seconds).
- The clonic phase (alternating contractions and relaxation) lasts for
variable periods.
- Patient awaken from the seizure with severe headache and in
general state of confusion.
2) Petit mal
These appear between 3 years of age and puberty, more in girls
- There is transient loss of consciousness.
- Occurs once or twice a month or several hundred times a day.
- They last for 30 seconds.
- Upward rolling of eyes.
- Drooping or rhythmic nodding of head, quivering of trunk of
thumbs.
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Psychomotor seizures
They are difficult to recognize and control.
- There is loss of postural tone.
- There are no clonic and tonic movements.
- The dentist should prevent the patients from injuring himself.
Focal Seizures
These seizures are produced by injury to the brain (trauma, toxic
agents)
- They are referred to as Jacksonian seizures.
- They are sensory or motor and are clonic in nature.
- The muscles most frequently involved are the most specialized for
voluntary movements in the hand, face, tongue.
Dental Management
Most convulsive disorders are controlled through medication and
pose few problems in dental treatment.
The dentists should ask the following questions during history
taking of all seizures patients.
1) What was the age of the patient at the time of onset of the seizure.
2) How many types does the patient have.
3) What is the frequency of seizures.
4) Does the patient tend to injure himself during the attack.
5) Do the seizures occur at any particular time of the day.
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6) How does the patient act immediately preceeding the seizure and
after the seizure is over.
7) What type of medications is the patients taking and when is it taken.
During the treatment
- Since anxiety is frequently precipitating factor, premedication with
minor tranquilizers can be considered.
- The drug regime of the patient should be evaluated.
- The use of mouth prop is mandatory during treatment.
- The dental units must be pushed away from the working field. In
case the patient during tonic phase of seizure to avoid injury.
- They major concern of the dentist during seizure is to ensure that
patients does not suffer physical harm.
- Loosen the patients clothing.
- Turn the patients head to the side, pull the rubber dam material on
youngs frame to evacuate the oral secretions.
- Always talk to the patients, where he is, who are you, every thing is
fine.
If his restorative procedure have already stated, either temporize or
complete the procedure, unless some injury has occurred or systemic
parameters are not within normal range.
- If appliance are indicated for tooth movements or tooth replacement
purpose – fixed type is preferred.
- Appoints should be given just after the patient has taken daily
medications.
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CEREBRAL PALSY
Nelson et al used the term cerebral palsy to describe a group of
nonprogressive disorders resulting from malfunction of motor centers and
pathways of the brain. These are characterized by paralysis, weakness,
incoordination, or other aberrations of motor function that have their origin
prenatally, during birth, or before the CNS has reached relative maturity
(before age 5).
A person with cerebral palsy characteristically has a motor disability
that is manifested as a loss or impairment of voluntary muscle, weakness,
stiffness or paralysis, poor balance or irregular gait and uncoordinated or
involuntary movements.
Etiology
- Decreased oxygenation of the developing brain.
- Complications of labor or delivery.
- Infections of the brain-encephalitis, meningitis, toxemias.
- Congenital defects of brain.
- Accidents resulting in trauma to the head.
- Premature births.
- Poisoning with certain drugs.
The term commonly used to designate involved areas of the body.
1) Monoplegia involvement of one limb only.
2) Hemiplegia involvement of one side of the body.
3) Paraplegia involvement of both legs only.
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4) Diplegia involvement of both legs with minimum involvement of
both arms.
5) Quadriplegia involvement of all the limbs.
Classification CP
1) Spastic (70% of cases).
- Caused by lesion in the cerebral cortex.
- Hyper irritability of involved muscles resulting in exaggerated
contraction when stimulated.
- Characterized by tense, contracted muscles.
- Limited control of neck muscles, resulting in head roll.
- Lack of control of the muscles supporting the trunk, resulting in
difficulty in maintaining upright posture.
- Lack of co-ordination of intraoral perioral, and masticatory
musculature. Possibility of impaired chewing and swallowing,
speech impairment, drooping of saliva.
2) Athetosis (25% of the cases)
- Caused by lesion in the basal ganglion.
- Slow writhming involuntary movements and interferes with normal
muscle action.
- Muscle normal with no spasticity.
- Involuntary movements.
- Neck musculature frequently involved resulting in excessive
movement of the head.
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- Uncontrolled jaw movements, abrupt closure of jaw and bruxism.
- Perioral musculature frequently hypotonic with mouth breathing
drooling of saliva.
- Speech problems.
3) Ataxia (10% of the cases)
- Caused by lesion in cerebellum.
- Disturbance in equilibrium – staggering gait, stumbling, difficulty in
grasping objects.
- Possibility of tremors and uncontrolled trembling on attempting
voluntary tasks.
4) Rigidity (5% of the cases)
- Caused by lesion in basal ganglion.
- Constant rigidity.
- Voluntary movements slow and stiff.
- Patients resistant to flexor and extensor movements with contraction
of agonist and antagonist.
5) Tremors (5% of the cases)
- Caused by lesion in basal ganglion.
- Repetitive, rhythmic involuntary contraction of flexor and extensor
muscles.
Orodental characteristics associated with CP
1) Spastic
- Limited head movement.
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- Hypertoxicity of facial muscles.
- Slow jaw movements.
- Spastic tongue thrust.
- Constricted maxillary and mandibular arches.
- Unilateral cross bite.
2) Athetoid
- Excessive head movement.
- Quick jaw movements.
- Grimacing and drooping.
- Mouth breathing.
- Tongue protruding.
- Bruxism.
- High, narrow palate vault.
- Malocclusions.
- Anterior open bite.
- Poor swallowing.
3) Ataxia
- Lack of balance.
- Slow tremor like head movements.
- Tongue protrusion and anterior openbite.
- Drooling and grimacing.
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General disabilities with CP
- Speech disorders – 50% - 75%
- Mental retardation – 45%.
- Visual defects – 20% to 50%.
- Seizures – 35% to 60%
- Deafness – 10 to 30%.
Dental problems:
- Periodontal disease.
- Dental caries.
- Malocclusions.
- Trauma.
- Bruxism.
Dental management
1) Consider treating patient confined to a wheel chair. Many express
such preference for young patients, the wheel chair may be tipped
back into dentists lap.
2) If a patient is to be transferred to the dental chair, ask about a
preference for the mode of transfer.
3) Make an effort to stabilize the patients head throughout all phases of
dental treatment.
4) Try to place and maintain the patient in the midline of dental chair
with arms and legs as close to body.
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5) Keep patients back slightly elevated to minimize difficulties in
swallowing (not in supine position).
6) On placing the patient on dental chair determine patients degree of
comfort and assess the position of extremities do not force the limbs
to unnatural position, consider pillows and towels for support.
7) Use physical restraints judiciously for controlling failing
movements.
8) For control of involuntary jaw movements choose from variety of
mouth props and finger splints.
9) To avoid startle reflex reaction, avoid such stimuli as abrupt
movements, noises and lights without forewarning the patients.
10)Introduce intraoral stimuli slowly to avoid eliciting a gag reflex.
11)Use rubber dam for restorative procedures.
12)Work efficiently, and minimize patient time in chair to decrease
fatigue of involved muscles.
13)Pre medication is a useful modality in management in case of fear
and apprehension.
14)If the patient is difficult to manage, GA is considered.
DEAFNESS
Deafness is a handicap that is often overlooked.
Almost inevitably, speech in affected. If the impairment is severe
enough that dentists and child cannot communicate verbally, the dentist
must use sight, taste and touch to communicate and allow the child to learn
about dental experiences.
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The causes for hearing loss
1) Prenatal factors
- Various infections – rubella, influenza.
- Ototoxic drugs.
- Congenital syphyllis.
- Heredity (waardenbarg syndrome).
2) Perinatal factors
- Prematurity.
- Birth injury.
- Anoxia.
3) Post natal factors
- Various infections – mumps, measles influenza, poliomyletis,
meningitis.
- Injuries.
- Ototoxic drugs – aspirin, streptomycin, neomycin, kanamycin.
Dental Management
1) Prepare the patient and parent before the first visit.
2) Through the parent, determine during the initial appointment how
the patient desires to communicate, thus decreasing the child fears.
3) Assess speech and language ability and degree of impairment by
taking a complete history.
4) Face the patient and speak at natural pace and directly to the patient,
so that the patient can lip read.
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5) Watch the patients expression make sure the patient understands
what dental equipments is, what is going to happen and how it will
feel.
6) Reassure the patient with physical contact, hold the patients hand
initially.
7) Employ tell-show-do approach, allow the patient to see the
instruments and demonstrate how they work: E.g. vibrations of
handpiece, scratching of explorer, scooping of excavator, texture of
rubber dam.
8) Use smiles and reassuring gestures to build up confidence and
reduce anxiety.
9) Avoid blocking the patients visual field.
10)Adjust the hearing aid (E.g., the patient has one) while the
handpiece is the operation since hearing aids amplify the sounds.
BLINDNESS
A person is considered to be affected by blindness if the visual
acuity does not exceed 20/200 in better eye, with correcting lens or if the
acuity is greater than 20/200 but accompanied by visual field of no greater
than 20 degrees.
Etiology of Blindness
Prenatal causes
- Optic atrophy.
- Micropthalmus.
- Cataracts.
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- Colobomas – defective growth.
- Dermoid and other tumors.
- Toxoplasmosis.
- Cytinegalic inclusion disease.
- Syphilis.
- Rubella.
- TB meningitis.
- Developmental abnormalities of the orbit.
Post natal causes
- Trauma.
- Retrolental fibroplasia.
- Hypertension.
- Premature birth.
- Polycythemia vera.
- Hemorrhage disorders.
- Leukemia.
- Diabetes mellitus.
- Glaucoma.
Blindness is one disorder that may result in frequent
hospitalization, separation from family and slow social development.
Dentist should relize that congenitally blind children need greater
display of affection and love early in life. Explanation is accomplished
through touching and hearing, reinforcement takes place through smelling
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and tasting. The modalities of listening touching, tasting and smelling are
important for blind children.
Reports reveal that motor activity affects the development of
language and perception. Blind children tend to have more accidents than
other children while acquiring motor skills.
Trauma to anterior teeth, gingival inflammation because of inability
to see and remove plaque.
Before initiating treatment for blind dentist should keep following
points in mind.
1) Determine the degree of perception of the light (visual impairment)
e.g., can the patient tell light from dark.
2) Avoid expressions of pity or references to blindness as an affliction.
3) In maneuvering the patient to the operatory ask the patient for
assistance. Do not grab, move, stop without verbal warning.
4) Describe the office setting. Always give the patient adequate
descriptions before performing treatment procedures.
5) When making physical contact, do so reassuringly.
6) Introduce other office personnel very informally.
7) Allow the patient to ask questions about the course of treatment and
answer them.
8) Allow the patient who wears eyeglasses to keep them on for
protection.
9) Avoid sight references.
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10)Rather than tell-show-do approach, invite the patient to touch, taste,
or smell.
11)Describe in detail instruments and objects to be placed in patients
mouth.
12) Demonstrate rubber cup on patients fingernail.
13)Holding the patients hand promotes relaxation.
14)Since strong taste may be rejected use smaller quantities of dental
materials with such characteristics.
15)Explain the procedure of oral hygiene and then place the patients
hand on yours as you slowly guide the tooth brush.
16)Use audiocassettes for explaining specific dental procedures and
decrease chair time.
17)Avoid unexpected loud noises.
18)Limit the dental care to one dentist.
Down’s Syndrome
Synonyms – Mongolism, Trisomy 21
It is one of the most common chromosomal disoders.
Etiology
Chromosomal abnormalities is Trisomy 21 or presence of extra
autosome (Thompson 1973).
Incidence : 1.5 in 1000 births.
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Features
Body growth : small stature due to retardation in appositional and
endochondral growth.
Head : Microcephaly with prominence of forehead, shortening of
anteroposterior diameter flattening of the occiput.
Eye :
- Upward, outward slant and epicanthal folds.
- Speeling of iris (brush field spots).
- Hypoplasia of iris.
- Chronic inflammation of conjunction.
Orbit :Smaller than normal.
Face :
- Round flat face.
- Flat nasal bridge.
- Upper facial height decreased.
Mouth:
- Under development of maxilla contributes to open mouth and
protruding tongue.
Tongue :
- Normal at birth.
- Older patients – fissured or macroglossia.
Teeth:
- Microdontia.
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- Conical tooth.
- Over retention of primary teeth.
- Aberrant eruption pattern.
- Anadontia, oligodontia, supernumerary teeth.
Palate : Narrow and high vault.
Limbs:
- Short, broad hand digits and feet.
- Wide space between first and 2nd
toe.
- Synductaly of fifth finger.
Ears – Anamolies in formation of external ear.
Skin : Dry, hyperkeratosis common.
Neck : Broad and short.
Nervous system
- Level of intelligence – mild to severe.
- General movements slow, sluggish, clumsy.
- Unsteady gait.
- Feet kept wide apart.
Periodontal status – Prevalence of periodontal disease is higher than
normal populations.
Systemic condition
- Cardiac diseases – 27-35%.
- Increased incidence of abnormality in WBC.
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- Increase incidence of RTI.
- Congenital heart disease, respiratory tract infection in 1st
5 years.
Common malformation
- Articular spethal defects.
- Insufficiency of AV value.
- Ventricular septal defect.
(Should follow the guidelines for SABE coverage).
Management
DS patients can be treated in dental office with tolerant and
sympathetic approach.
- Most of them are affectionate and cooperative, cheerful and well
behaved.
- Decreased resistance to infection should be considered while
treating.
Heart Diseases
Heart diseases can be divided into:
a) Congenital.
b) Acquired.
Because individuals with heart disease require special precautions
during dental treatment such as antibiotic coverage for prevention of
SABE, a dentist should closely evaluate the medical history to ascertain
CVS status.
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Congenital Heart Disease
Incidence – 9 in 1000 birth.
Types:
a. Venticular septal defect.
b. Patent duction arteriosus.
c. Fallots tetralogy.
d. Transposition of great vessels.
e. Artral septal defect.
f. Pulmonary stenosis.
g. Coartation of aorta.
h. Aortic stenosis.
i. Tricuspid atresin.
Etiology:
- Unknown.
- Aberrant embryonic development of normal structure.
- Failure of structure to progress beyond embryonic development.
Others
- Maternal rubella infection.
- Chronic maternal alcohol abuse.
Types
- Cyanotic
- Acyanotic
32
Acyanotic is divided into 2 groups:
1st
group – defects that cause left to right shunting of blood.
- Includes – VSD, ASD
CF
- Murmurs.
- H failure.
- Pulmonary congestion.
- Heart murmur.
- Labored breathing.
- Cardiomegaly.
2nd
group
- Defect caused by obstruction.
- E.g., stenosis of aorta.
CF
- Labored breathing.
- CCF.
Cyanotic congenital heart disease
Characterized by right to left shunting of blood within the heart.
- Cyanosis occurs during mild exertion e.g., fallouts tetralogy,
transposition of vessels pulmonary stenosis.
CF
- Cyanosis
33
- Hypoxic cells.
- Poor physical development.
- Heart murmurs.
- Clubbing of fingers.
Acquired heart disease
Rheumatic fever:
- Inflammatory disease that occurs as a delayed sequela of pharyngeal
injection.
- Caused by streptococci.
- Infection can involve heart, joints, skin, CNS, subcutaneous tissue.
- Occurs commonly between 6 to 15 years.
- Prevalent in temperate zone and high altitude.
- Carditis develop in 50% of patients.
Jones criteria in diagnosis of RF
Major manifestation Minor manifestations Supporting evidences
Carditis polyarthritis
chorea
Erythema margination
Subcutaneous nodulus
- Fever
- Arthralgia.
- Previous history.
- RF or heart disease
- Increased erythocyte
SR (E.S.R.)
- +ve c-reactive
protein.
- Prolonged PR
interval.
Evidence of preceeding
streptococcal infection.
Positive throat culture
group A streptococcus.
Infective bacterial endocarditis
34
Characterized by microbial infection of heart valves or endocardium
in proximity to congenital or acquired cardiac defects.
Divided into : - Acute
- Subacute
Acute – disease that usually occurs as a result of microorganism of high
pathogenicity, causing erosive destruction of valves.
Microorganisms
- Staphylococcus.
- Streptococcus group.
- Pneumococcus.
Subacute – In contrast SABE develops in persons with preexisting
congenital cardiac disease.
- Commonly caused by Viridans streptococci.
CF
- Embolization.
- Microorganism may colonize on endocardium.
Symptom
- Irregular fever.
- Malaise.
- Anorexia.
- Weight loss.
- Arthalgia.
- Cardiac murmurs.
35
- Painful fingers, toes, skin lesions.
Lab findings
- Leukocytosis.
- Increased ESR
- Bacterimia.
Precipitating factors
1) Dental manipulation – induce gingival bleeding.
2) Incision and drainage of infected tissues.
3) Tonsillectomy.
4) Bronchoscopy.
5) GI instrumentation.
6) UT instrumentation.
7) IV catheters.
8) Valvular prosthesis.
Dental Management
- History.
- Medical and physical examination.
- Discuss with the physian.
- Adequate antibiotic therapy.
- Cardiopulmonary resuscitation equipment should be available.
36
Following considerations:
1) Pulp therapy for primary teeth is not recommended – therefore,
increase incidence of chronic infection – extrusion and SM.
2) Endo therapy – in permanent teeth can usually accomplished and
performed adequately.
3) Patients with cardiac pacemakers with existing congenital defect or
disease prophylactic antibiotic coverage to prevent SABE is not
indicated.
HEMOPHILLIA
This is most common congenital blood coagulation disorders which
produces serious bleeding episodes.
This is caused due factor VIII (A) deficiency and factor IX (B)
deficiency.
Hemophilia is inherited as an X linked recessive tract. Therefore all
males who possess the defective X chromosome have clinical
manifestations of disease and females are caries.
Another bleeding disorder, frequently confused with hemophilia is
Von Willebrand disease. This disease is inherited via autosomal dominant
gene affecting males and females. The person with this disease have mild
deficiency of factor VIII and abnormal platelet function.
37
Classification of hemophilia
Degree % of VIII
and IX
Characteristics
Severe <1 May be frequent spontaneous bleeding into
joints and muscles.
Moderate 1-5 Occasional spontaneous joint bleeding,
minor trauma may initiate hemorrhage.
Mild 5-35 Significant hemorrhage only after major
insult such as extraction.
Dental management of hemophilia
The dental treatment of a patient with hemophilia necessitates
thorough understanding of this patients disorder. It is important that the
nature of disorder be determined through interviews with parents and
childs physician. Before starting the treatment, the dentists should
undertake thorough medical history about this disease.
It is especially important to avoid tissue laceration or other intraoral
trauma.
The following patients are important in treating the patient.
1) The relief of anxiety has been shown to be beneficial in maintaining
hemostasis – by premedication, nitrous oxide inhalation, hypnosis.
IM transquilizing analgesic agents in contraindicated as it can cause
hematoma.
2) In absence of factor replacement, intraligamental injection may be
used. Block anesthesia is not recommended, local infiltration can be
easily administered after single infusion of factor replacement.
38
3) Teeth can be cleaned by rubber cup minor haemorrhage can be
controlled with local mechanism such as direct pressure. For minor
hemorrhage topical application of bovine thrombin may be used.
4) Most of restorative procedure and pulp therapy on deciduous teeth
can be successfully completed without discomfort through use of
acetaminophen with iodemic with nitrous oxide inhalaton.
Hemophilia
If the child with hemophilia sustain oral trauma with excessive
bleeding following modalities.
1) Hemorrhage associated with laceration of OMM – single dose factor
cocnentrate that raises the level of factor 50% of normal E-ACA
continued until epithelization is complete.
2) Laceration which requires suturing repeated doses of factor which
level of at least 25% of normal is maintained E-ACA infusion
continued until the wound is healed.
3) Extraction of primary teeth or permanent, factor VIII infusion of
100% of normal and loading dose of E-ACA maintenance dose of
E-ACA for 7 to 10 days.
Extraction of teeth begin within 1 hour after infusion.
Adjunct local measures to control bleeding should be considered.
Like avitum or oxidized cellulose material impregnated with bovine
thrombin.
Patient must be give very specific instruction – strict diet for 2
weeks – 1st
22 hours liquid diet. Dairy products should not be allowed as
they leave film residue. Next week soft diet after 10 days – normal diet.
39
E-amino caperi acid (E-ACA)
As adjunct to factor replacement therapy. In hemophilic patient,
there is normal Fibrinolytic mechanism but generation of thrombin
necessary for clot is decreased. Thus, the clots get dislodged. The
fibrinolytic mechanism is inhibited by E-ACA to form stable clots.
Desmopressin acectate
- Antidiuretic hormone – causes increased levels factors VIII.
4) Particular care must be taken in placement of IOPA films and use of
high suction or saliva ejector.
5) The use of rubberdam with greatly assist in protection of soft tissues
clamps with subgingival extension should be avoided.
6) Conventional pulp therapy is preferable to tooth extraction.
Intrapulpal injection can be used to reduce pain. Hemorrhage from
pulp chamber can be reduced by pressure packs.
Dental care
Preventive Dentistry
Prevention of dental diseases requires a combination of diet, plaque
control regular continuing professional care. Parents should be made aware
that as gingival health improves, minor bleeding caused by brushing will
stop or treated by topical bovine thrombin.
Flossing should be taught only to those parents and patients who
appear capable of mastering the techniques.
In severe hemophilias, fluoride therapy, to be done every 3 months
using custom trays.
40
Periodontal disease
Treatment of the periodontium is one of the most neglected aspects
of children. Simple dental prophylaxis and topical fluoride application can
be easily done in severe hemophiliases provided meticulous care is
exercised to prevent gingival trauma.
Calculus may be removed in stages in order to reduce bleeding risk.
Initially, gross supragingival scaling is done, allowing the gingival
inflammation to subside, as the inflammation resolves remaining calculus
can be removed. For deep scaling, replacement therapy should be used
prior to the treatment.
Restorative Dentistry
Extra care should be taken to avoid soft tissue injury.
Routine use of rubber dam is helpful in protecting patients lips and
tongue from trauma, clamps such as ivory No. 8A and 14A should be
avoided for gingival damage, clamps such as SS white No.22. 201.
Extra care must be taken during passing the rubber dam through
contact points with dental floss to avoid “snapping” of floss into
interproximal gingiva.
Stainless steel crowns can be avoided when possible to prevent
gingival bleeding and laceration.
Endodontic procedures
These are highly recommended in children to lower the need for
extaction.
Pulp bleeding can be controlled easily without replacement therapy.
Extra care is taken to prevent periapical trauma.
41
Oral surgery
Prior to surgical procedures, missing blood factor is replaced.
During extraction procedure.
Lucas and others advocate combination of absorbable hemostatic
agents and topical bovine thrombin.
Lucas, saturates oxidized regenerated cellulose with bovine
thrombin dissolved in 0.5% sodium percarborate solution. After socket is
dried, surgicel is used to fill the socket within 1 mm of the surface lucas
then covered the wound with splint.
Orthodontics
Although bands should be avoided when possible, much can be
done with adhesive brackets or removable appliance in orthodontic
management of malocclusion. In severe bleeders however, it is not
suggested that bands be used on any teeth.
AUTISM
In 1944 Kaner described clinical syndrome in children to which
negave name infantile autism. He described that one symptom with the
disease was an viability to relate approximately to the people and
situations. These childrens are seem to be self sufficient and introverted
and want to be left alone.
- They have no attachment to parents.
- They relate poorly to persons.
- They remain occupied water moving or shining objects such as
keys, spinning tops for hours.
42
In 1980, diagnostic and statistical manual of mental disorders
published by APA listed autism as neurological disorders, caused by
physical disorder of the brain.
Incidence – 2.5% in 10000 population – Kanueer and Lesser 1958.
Etiology
- Lotter (1966) – postulated that personalities attitudes and behaviour
of the child’s parents contibute the autism.
- Bakwin and Bakwin early manifestation of childhood schirophamia.
- Children who have been brought up in institution where they
received no stimulation and totally deprived. – Kammer
Features
- Language – impaired invariability.
- 2/3rd
achieve active functional speech but 1/3rd
remain without
functional language. – (Robin son and Milins 1976).
- Even the speech is a acquired they hardly speak.
- When speech is present they repeat the word or phase.
- They have difficulty in saying yes.
Behaviour
- Intense desire to maintain consistency in the environment.
- Inappropriate reachers to fearful situations.
- Prone to transforms and aggressive or destructive behaviour.
- Bizarre behaviour makes dental management difficult.
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Management
Loovoos et al (1974) reported behaviour modification techniques.
The key to all behaviour modification programs lies in the positive
reinforcement to promote desirable behaviour.
In early stages, sweet foods can serve as desirable rewards.
In later stages of modifying behaviour such oral rewards should be
changed to social rewards, such as pat on the back or a hug.
- In the interest of time , premedication of ketammic in useful.
- GA is method of choice.
Cleft Lip and Palate
Cleft lip with cleft palate is severe birth defect occurring in newborn
infants.
Cleft lip and cleft palate are among common congenital
malfunctions occurring in orofacial region. The variable morphology of the
congenital anamoly ranges from soft tissue defect involving either lip or
soft palate with complete separation of the oral and nasal cavities.
The associated defects with this are malformed teeth, malocclusions,
impairment of speech, middle ear infection, URTI.
Incidence
- One in 750-1000 newborns in USA.
- In whites – one is 800 births.
- In blacks – one in 2000 births.
- Japanese - one in 500 births.
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- Cleft lip and palate lengthen account for 50% of all cases.
- Isolated cleft lip and palate occur in 25% each.
- Males are commonly affected.
A number of classification have been proposed but one of them have
been universally accepted.
I) Davis and Ritchie (1922)
Group I – Prealveolar clefts – lip clefts only with unilateral, median and
bilateral.
Group II – Post alveolar clefts – involves soft and hard palates.
Group III – Alveolar clefts – complete clefts of palate, ridges and lip.
II) Fitz and Gibbon (1930)
1) Cleft of the soft palate.
2) Cleft of soft and hard palate.
3) Cleft of the soft and hard palate with single hard lip.
4) Cleft of soft and hard palate, with double hairlip and deteched
premaxillae.
5) Cleft of soft and hard palate, edentulous.
I) Vean (1931) classification of cleft lip and cleft
palate
a) Cleft lip
Class I – unilateral notching of vermillion border but not extending
into the lip.
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Class II – unilateral notching of the vermillion border with cleft
extending into the lip but the floor of the nose.
Class III – unilateral cleft the vermillion border of the lip, extending
into the floor of the nose.
Class IV – Any bilateral cleft lip whether this be incomplete
notching or complete clefting.
b) Cleft palate
Class I – involves only the soft palate.
Class II – involves only the soft and hard palate, but not alveolar
process.
Class III – involves both soft and hard palate and the alveolar
process oneside of the premaxillary area.
Class IV – involves the soft and hard palate and continues through
the alveolus on both sides of premaxilla, leaving a free and mobile.
46
III) Fogh – Anderson (1942)
Group I – Harelip – single, double
Group II – Harelip and cleft palate – single, double.
Group III – Cleft palate
IV) Olinger classification (1952)
Class I – fissure in azygos uvuale
Class II – Fissure in uvuale
Class III – Fissure in soft palate
Class IV – Fissure in soft and hard palates.
Class V – unilateral cleft, fissure in the soft and hard palates, then alveolar
ridge at junction of maxilla and premaxilla accompanied by cleft lip.
Class VI – bilateral cleft, fissure in soft and hard palates through the
alveolar ridge at the junction of the maxillae, accompanied by cleft lip.
V) Kernahan and Stark (1953)
This pattern is widely accepted and utilized.
Group I – (clefts of primary palate anterior to inclusive foramin)- Cleft of
the tip (CL), all forms of degrees of cleft lip, and combination cleft lip and
cleft alveolar process.
Group II – Cleft lying posterior to incisive foramin on degrees of clefts of
soft and hard palates.
Group III – Combination of clefts of both primary and secondary palates
involves combination of group I and group II.
47
Subdivision
Group I
1) Unilateral cleft lip – incomplete
2) Unilateral cleft lip – complete
Group II
1) Cleft lip involving the soft palate only.
2) Cleft lip involving the soft palate and hard palate.
Group III
1) Unilateral cleft lip with complete cleft of soft and hard palate.
2) Bilateral cleft lip with complete cleft of soft and hard palate.
VI) International confederation for plastic and
reconstructive surgery 1968
Group I – clefts of anterior palate (primary)
a) Lip right / left
b) Alveolus right / left
Group II – clefts of anterior and posterior palate
c) Lip right and left.
d) Alveolus – right and left.
e) Hard palate – right and left
Group III – clefts of posterior (secondary) palate
a) Hard palate – right and left.
b) Soft palate median
48
Etiology
Extent etiology of CCP is still unknown but few accepted theories.
1) Exogenous tract factors
Like – Rubella
Thalidomide drugs
2) Mulant genese and chromosomal aberration.
Mutant genes – ectodermal dysplasia
Chromosomal aberrations – D-trisomy and E-trisomy
3) Multifactorial causes
Contribution of both with heredity.
Pathogenesis
Cleft lip
According to mesodermal deficiency theory the lip and premaxilla
in their early forms as an ectodermal good in which 3 masses of mesoderm
are present. Normally these masses grow and limit to form the upper lip
and premaxilla, but failure of the growth leads to infiltration of the
ectodermal head a consequent weakening of this delicate membrane
induces a rupture of the head and a cleft lip results.
Cleft palate
This commonly accepted that cleft palate results from the failure of
the palatal shelves to meet and fuse in the midline.
49
Causes are:
1) Failure to displace the tongue from between the shelves may
prevents closure.
2) Fusion may be prevented because shelves are too narrow to meet in
the midline or because of other structural defects.
3) Normal palatal shelves may not meet in the midline is an individual
ha an incisally wide head.
Oral findings
- Natal or neonatal teeth with complete or bilateral cleft palate.
- Congenitally missing teeth.
- Supernumerary teeth.
- Ectopic eruption of deciduous lateral incisor.
- Anomalies in morphology.
- Enamel hypoplasia.
- Microdontia, macrodontia.
- Fusion of teeth.
- Lateral facial profile convex.
- Rotation of teeth.
Extraoral features
 Defects of extremities syndectyl (webbed fingers) and malformation
of lower extremities.
 Upper respiratory tract infection.
50
 Congenital heart disease.
 Hearing problems caused by middle ear infections speech
impairment.
Evaluation of the child
Careful history of pregnancy, labour, delivery, and family history.
- Look out for congenital abnormalities.
- If present eyes to gene therapists, so that etiology and mech can be
explained.
Other consultation should be addressed depending on the physical
examination by EMT, opthalmologist, cardiologist, pediatrician prior to
surgery.
Also refer the child to psychologist, speech pathologist, radiologist.
Pre surgical management (counseling)
It is extremely important because almost all the patients have same
concerns. This will help the parents to warmup.
Feeding
First goal is to prepare the child for surgical response of lip. Before
surgery the child should have following criteria – 10 weeks, weight 10
pounds and 10 gms of tbl spoon – ‘3 times law’.
Feeding plates
Feeding problems arise in the case of bilateral and unilateral cleft. A
feeding plate can be made to cover the roof of the mouth to prevent food
entering nasal cavity.
51
Stage (maxillary orthopedic stage) birth to 18 months
Feeding problems are often associated with clefts, making it
difficult to maintain adequate nutrition.
- Insufficient suction to pure milk excessive out intake, nasal
discharge.
McNeil (1950) – Obturator
Advantages
1) Provides false palate against which the infant can suck reducing
feeding problems.
2) Provides maxillary cross arch stability and prevents arch collapse.
3) Orthopedic moulding cleft segments in to approximation before
bone grafting.
Indications
- Complete cleft tip and palate.
- Maxillary orthopedic moulding of segment after surgical closure of
lip.
Procedure:
- Impression of maxillary arch is made in stock tray.
- The infant is held upright during impression to prevent, aspiration of
excess material.
- Appropriate emergency equipment, forced oxygen, suction and
airway management system should be available.
52
Fabrication
- Block out all the undercuts with wax.
- Separating media is applied.
- Fabrication of the appliances using self cure resin.
Clinical management (Birth – 3 months)
- Area of excessive pressure relived.
- Maintaining hygiene.
- Recall the after 2 days of initial placement.
- Recall every 15 to 1 month.
The primary function of cleft palate clinic are to evaluate and
planning of rehabilitative needs of his patient. To obtain optimal
rehabilitation each number of the discipline involved have general problem
faced by other members of the team, is excessive and prolonged
orthodontic treatment required in separate stages:
1) Infancy before initial surgical repair of lip.
2) During primary and mixed dentition stage.
3) During late mixed dentition and early permanent dentition stage.
4) In later teeths after the complication of facial growth in conjunction
with orthognathic surgery.
Infant Orthopedics
If presurgical movement is indicated it is carried out 3 to 6 weeks of
age that lip closure can be carried out 10 weeks. A passive plate similar to
orthodontic retainer is used for months after lip closure.
53
Later primary and early mixed dentition treatment
The result from surgical correction of lip closure some constitution
across the anterior parts of maxillary arch is created.
Orthodontic intervention is often unnecessary until permanent
incisors begin to erupt. There is tendency that maxillary anterior erupted
rotation and with crossbite. This can be corrected by fixed and removable
appliance.
Pre-surgical orthopedics:
The growth potential of the nasal septum is extremely powerful
when the lip is normal, the forces are directed anteriorly along the midline.
If there is a muscle pull to one side because of a unilateral cleft these two
forces combine to pull the major segment to non cleft side.
Therefore if an opposing force to nasal septum and to the muscle
pull can be applied the distortion can be minimized. If at the same time a
shearing force can be applied to minor segment, the major and minor
segments of the alveolus and lip can pulled together. This makes the task of
plastic surgeon repairing the lip defect much easier. The active force can be
provided by 3 pieces of tape joined together by 2 elastic bands. The central
portion of the tape tends to cup the premaxilla in bilateral cleft case thus
stabilizing the segment strapping should be applied immediately after birth
and continue till the time of surgery. In this way tension in the tissues is
minimized version facial skin as the repeated changing of the strapping
54
means that the tape must be removed from the face this can result in the
skin becoming sore using a barrier dressing or leaving an additional piece
of tape on the face minimizes the effects of this recurrent trauma.
In the case of bilateral clefts, the lateral segments tend to
approximate, resulting in the blocking out of the premaxilla. To prevent
this an oral plate must be fitted to stabilize or even move the lateral
segments buccally when the cleft of palate is unilateral, an active plate can
be used to stabilize or prevent collapse of the segments and narrowing of
the maxillary arch.
One type of expansion plate is constructed on a cast that has been
cut and the segments reposition by upto 3mm. Alternatively a plate with a
spring in the anterior region and a hinge in the posterior region can be
fabricated to give a differential expansion.
An active plate unlike the passive feeding plate must be worn at all
times. This plate is kept in position by the action of the tongue, the force
generated by the baby acting together an extraoral were “whiskers” which
are taped to babys face.
Orthodontics
The goal of orthodontic treatment is to provide an aesthetically
acceptable and healthy dentition for life and to contribute positively to the
55
general facial form and appearance. An orthodontist working with clefts,
children before starting treatment two important parameters.
1. First with regard to the timing of orthodontic treatment.
2. Most patients have complex orthodontic problems dental problems
specific to cleft and palate.
1. Congenitally missing teeth.
It has shown that children who have clefts of the maxilla have a
higher incidence of congenitally missing teeth. This is true not only the
immediate area of cleft but also the contralateral side and the opposing arch
in complete unilateral clefts.
2. Supernumerary teeth
A greater incidence of supernumerary teeth in the cleft lip and palate
patient. The maxillary lateral incisor area is affected most often, especially
when it is in the direct line of the cleft. When cleft occurs it affects the
angle of the lateral incisor and can split it in two.
The teeth are ectopic in position smaller in size and expandable.
3. Other tooth anomalies
These include:
a. Fused.
56
b. Irregularities of tooth size, ectopic eruption, malformation of
individual teeth delayed eruption of mandibular teeth
ankylosis of teeth adjacent to the site of the cleft lack of bony
base over which teeth might be moved.
Presurgical period
When pre-operative orthopedic treatment was introduced at many
clefts center in 1950’s.
The above principles and objectives its adoption was resisted for the
following reasons:
1. The surgeons felt they did not need it.
2. At the time pre-surgical orthopedic treatment was introduced.
3. The teem particularly the orthodontist were worried that pre-surgical
orthopedics may have a adverse effect on maxillary growth.
Pre surgical orthopedic treatment has now been used extensively in
Europe and limited states for over 30 years.
Treatment Procedures
Orthodontic care is considered here in 3 phases, during the primary,
mixed and the permanent dentition.
57
Primary dentition phase
The extent of a malocclusions is usually lees apparent in the primary
dentition. Then in the permanent dentition, treatment is difficult in the
primary dentition because of the lack of good teeth for anchorage.
- The presence of a bulky appliance in the mouth may
contribute to speech problems.
- The level of cooperation that can be expected from a child of
this age is fairly limited.
- In addition as children grows relapse commonly occurs.
Even when there is evidence of a high arching palate due to lateral
collapse or retrusion of the maxilla it is usually better not to perform any
active treatment in the primary dentition.
Mixed dentition phase
By the mixed dentition stage most of not all of the anterior teeth in
the region of the cleft will have erupted. They are frequently malformed,
hypoplastic and erupt in ectopic positions or missing the rationale of
treatment was to reduce cross bites and create functional environment. As a
general rule orthodontic treatment during the mixed dentition limits itself
maxillary arch.
58
For example in complete, unilateral and bilateral clefts if buccal
segments crossbite exists to reduce the first. If the maxillary central
incisors erupt in lingual version or rotated and ectopic. This requires
another phase of treatment.
If the maxillary first permanent molars erupt in crossbite and lateral
incisors in lingual version, this to necessitates, additional treatment. There
are number of techniques available for reduction of bilateral buccal
crossbites.
1. Quad helix appliance.
2. A rapid maxillary expansion device.
Permanent dentition phase
By the permanent dentition stage growth is nearing completion and
magnitude of any deformity can be readily assessed. Hence this is the most
appropriate time for performing orthodontic therapy.
There may be abnormalities in the position of the teeth or the jaws.
In the case of later the discrepancies can be considered in 3 planes:
1. Transverse.
2. Anteroposterior.
3. Vertical.
The transverse relationship may be such that a posterior crossbite.
This is usually more in the region of the minor segment adjacent to the
59
cleft. The collapse of the arch may be due to repair of the lip. It is more due
to scar tissue arising from the palatal repair which has restricted lateral
maxillary growth.
Because of the lack of bony union between the segments of the
maxilla, they can be easily moved using a fixed appliance that is cemented
directly to the teeth. This approach limits the degree of tooth tipping.
When there is a severe anterior cross bite, expansion may be
required using a roped palatal expansion type of appliance.
For correction of a posterior crossbite, a quadhelix type of appliance
is used. There is no midline suture to open in posterior region, this
expansion can be performed more slowly. An alternative is an appliance
that caps the teeth and has a screw anteriorly and a hinge posteriorly to
achieve differential expansion of the arch.
Speech and language
All children with cleft palate requires such therapy to overcome the
difficulties associated with trying to generate intraoral pressure and to
overcome hyper or hyponasality. In the time between repairing the lip and
palate, the child begins to develop oral movements before speech. This is
pronounced between 12-18 months of age. Repair of the palate should not
be delayed beyond this period because in the majority of cases acceptable
speech can be achieved following surgery at this stage.
60
Immediately after birth, the child will start to experiment with sound
production. These early babblings are the beginning of speech. The speech
therapist can advise the parents to encourage the child by reading to them
and naming objects when moving around the house or in the street. All
times it is essential that the child is allowed to practice speaking. The
parents need to be counseled by a speech therapist so that they fitting
palate in the childs mouth on a long term basis before palatal repair may
have some beneficial effects in that it allows the tongue to function in an
area approximating to the shape of the future mouth.
Multispeciality team management
White house had described, clinical team as a close cooperative
democratic, multiprofessional lenion development to a common purpose
the best treatment of fundamental needs of a patient. In order to improve
function and appearance of various parts of face and oral cavity that are
affected by this defect and associated psychological problems, different
specialists must work in close collaboration to treat these children. The
team include a plastic surgeon, a pedodontist an ENT surgeon an
orthodontist, a speech therapist, oral surgeon and a prosthodontist.
The role of individual specialists
Primary function of plastic surgeon is to prepare clefts of lip and
palate and to improve function of the soft palate and appearance of lip and
61
nose. He may be required to deepen the labial sulcus and in bilateral cleft
cases, reposition the premaxilla. Because of early treatment performed by
plastic surgeon, parents become acquainted with him and he makes a useful
team leader.
The pediatric dentist is responsible for constructing feeding plates
and advising parents on feeding techniques for the neonate. He provides
restorative and preventive dentistry including dietary advice and topical
fluoride applications during childhood.
The ear, nose and throat surgeons performs aural examinations and
assesses the hearing by using impedance and compliance tests. This is
essential if the child is to communicate and learn at the normal rate. If
necessary surgical procedures can be used to protect ears and maintain
them in a healthy state, the role of ENT surgeon is limited after the age of 7
years because most of early hearing problems should have ceased. Hearing
improves when the tensor palati muscles take over from levator palati
muscle as the primary muscles responsible for opening the Eustachian
tube.
The orthodontist is usually responsible for performing presurgical
dental orthopedics and when necessary early correction of malalignment in
the incisions and correction of discrepancies in the labial segment
relationship. Crowding and malalignments are corrected in the full
62
permanent dentition and teeth are often moved orthodontically to move
favourable position for the retention of a prosthesis.
The speech therapist advises the parents about communication
problems and demonstrates method of encouraging the child to speak
properly. When necessary treatment is provided to overcome problems
such as hypernasality, nasal fricatives defects articulation due to inability
of patient to build up sufficient pressure.
The social worker can help by giving support advice and looking
after many siblings.
Prosthodontist replaces, restores orofacial structures that may be
congenitally missing or malformed non living materials are used to restore,
enhance form and anatomy he fabricate appliance to rehabilitate
mastication deglutition, speech and oral esthetics. They may incorporate a
palatal expansion or an obturator to occlude any residual palatal defect.
The psychologist assists by counseling both parents and child at
different times to help them, minge and cope with their problems.
The oral and maxillofacial surgeon evaluates all patients for facial
form and function and jaw position many cleft patients have a skeletal
malocclusion that can be treated by conventional orthodontics and requires
surgical correction. The surgical placement of primary and secondary
alveolar cleft bone graft is another important role of the surgeon. These
63
grafts aid in dental rehabilitation of the patient. The grafted bone supports
the teeth adjacent to the cleft site and provides bone through which teeth
may except.
Treatment schedule summary and the specialists treating a patient
with a cleft lip and palate:
Birth : Pedodontist may construct feeding plate and initiate pre-surgical
dental orthopedics. Team members are introduced to parents and
emphasize need for adequate weight gain so child attain necessary stage of
development before lip surgery.
3 months of age- surgical repair of lip bilateral cleft lip cases may be
repaired as a two stage procedure.
6 months – preventive dentistry begins.
15-18 months surgical repair of palate speech therapist assess.
2 years – plastic surgeon review surgical result orthodontist examines teeth
and soft tissues, especially noting relationships of anterior segments and
depth of labial sulcus in the cleft region. ENT surgeon assesses hearing and
examines tympanic membrane speech therapist continue to monitor speech.
Pedodontist stresses importance of good dental health.
3 years – dental check ups at 4 months intervals other team members
review regress annually.
64
4 years – ENT surgeon usually performs aduiography and compliance tests
and if necessary places grommet tubes in ear drums. Speech therapy starts
for children with speech and hearing problems.
7 years – Early correction of malalignment of an anterior teeth and labial
segment relationship.
9 years – surgical lip and nose revision to improve appearance.
12 years – orthodontists correct malocclusion and treats crowding and
malalignments. Expansion of maxillary arch may be necessary teeth may
be moved so as to create space for bone graft or for fixed removable
prosthesis.
16 years – plastic surgery to improve the appearance of nose, the oral
surgeon may form a Lefort 1 maxillary osteotomy to correct retrusive
appearing maxillo, replacement of missing teeth with fixed bridge or
removable prosthesis.
16 years onwards – prosthodontists and restorative dentist prove regular
dental care.
Dental management of the cleft patient
The child patient with a cleft lip and palate offers challenges to the
pediatric dentist. The children undergo surgical and dental procedures more
frequently making them more anxious in the dental office. Change in the
65
innervation of the maxilla and post surgical scar tissue make the local
anesthesia difficult the anesthetic scar from missing teeth an incomplete
alveolus also managed until the establishment of the permanent dentition.
As part of a cleft palate team and pediatric dentists mission is to
protect and supervise. The eruption of permanent teeth. The tasks that one
can be expected to perform include the following:
1. Construction of infant feeding and orthopedic appliances.
2. Education of parents to the dental needs and care of this child.
3. Introduction of the child to environment.
4. Prevention of dental caries.
5. Guidance of the developing primary and secondary dentition.
6. Restorative dentistry for the primary and secondary dentition.
7. Management of problems unique to the cleft side.
8. Education of the child and parents to the maintenance of good oral
hygiene.
Establishing good communication between the child and the dentist
is the first step in helping the child develop a positive attitude towards the
dental office experience.
Home rinses can be used for the child who wears an orthodontic and
prosthodontic appliance.
66
As the permanent teeth erupt, those teeth with a deep pit or fissure
should be considered for occlusal sealants.
Local Anesthesia
The use of local anesthesia is an important factor in the successful
development of pediatric dental care. The tissue over the injection site is
implied with a dry gauze and a cotton tip applicator dipped in a topical
anesthetic is applied to the injection site. 20% Benzocaine is the most
common topical anesthesia used. It has an onset of action of 30 seconds.
Oral surgery
A common problem with infiltration anesthesia in the cleft
population is the anesthetizing a tooth in or near the cleft area. Usually the
tissue surrounding the tooth is tightly bound down and prevents infiltration
of anesthetic for these teeth injection of the anesthetic into the periodontal
space is recommended. A special syringe for this injection prevents
breakage of the anesthesia catridges, due to the higher injection pressure is
required. This technique is useful for the extraction of supernumerary
maxillary teeth.
Preventive and Restorative Dentistry
As a rule initial visit to the dentist is made when the patient is
between 2 and 3 years old. At this time deciduous dentition is developing
and surgical closure of the clefts have been completed one of the first few
67
visits child should be examined receive light prophylaxis, allowed to
familiarize himself with dentist and his surroundings because of shape of
surgically treated palate some difficulty may arise in taking radiographs.
However it is essential that these diagnostic aids to be obtained
approximately 4 years of age of four years for detection of caries and
determination of supernumerary congenitally missing or malformed teeth.
The caries rate is patients with cleft lip and palate is theoretically
same as for any other patient. However, the use of intraoral appliances for
long periods increases caries susceptibility to monitor the oral health care
more frequent recalls at 3-4 month intervals are necessary professional
applications to topical fluorides must be given regularly pit and fissure
sealants must used on all permanent teeth and in the primary dentition in
selected cases. Reinforcement of oral hygiene instructions and dietary
advice must be rigorously checked and emphasized restorative care should
be provided before carious lesions become extensive topical and local
anesthesia should be used whenever indicated.
Many of these children are mouth breathness because of deviation
of nasal septum that is frequent by associated with facial oral clefts.
Interference with their breathing during operative procedures may create a
high degree of anxiety in these parents. The dentist can overcome this
68
problem by reassuring the patient by limiting the use of cotton rolls or by
the use of a rubber dam with large air holes.
Early parental education and optimal systemic fluoride use can help
to decrease this type of cones. The filled composite restorative resins are
used primarily when esthetics are concern. In the cleft population this
material is useful in restoring nursing bottle incisors and hypoplastic
anterior teeth children with cleft palate have a needed to wear maxillary
appliances such as an nance arch or space maintainer. These appliances are
used to maintain space and replace missing teeth in the anterior region. If
child is extremely incorporate and has poor oral hygiene, placing a chrome
steel crown on the abutment tooth aids in the fitting of the retentive band.
Pulp therapy
The treatment of pulpally involved teeth is important to the cleft
palate in order to maintain arch integrity and remove infection in the
primary dentition treatment of pulpally involved teeth depends on the
degree of inflammation present and the dental age of the tooth.
Teeth that will soon exfoliate should be extracted rather than
restored supernumerary teeth in the cleft area should be evaluated for
function and esthetics with the addition of acrylic teeth. Removable
Hawley’s type appliances are indicated for the replacement of anterior
teeth if the child is cooperative.
69
d)
Child Abuse and Neglect
Definition – Finding of inhibited, non accidental injuries
Classified
- Sexual
- Physical
- Emotional
Sexual
- In house abuse
- Out house abuse
In house – prevalent than out house- incist or molestation by slip fathers,
friends of parents.
20% of sexually abused or molested during childhood.
STD – and finding of unexplained injuries around genitalia.
15% abused are male and less than 10 year old.
Emotional
Physical abuse
- History of alleged accident described by caretaker is not compatible
with observed physical injury or pattern injuries. E.g. intra cranial
hge.
Contributing factor – delay in seeking medical care, history of poorly
explained injuries and evidence of child neglect.
Intracranial injuries – result of blows or kicks.
70
Intercranial injuries – with no marks – vigorous shaking of child –
whiplash injuries and pure take hge within brain.
Retinal hemorrhage – funduscopic examination.
Injuries – hge, bruises, black eyes, belt marks.
71

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Developmental disabilities and their management

  • 1. HANDICAP CONDITIONS AND THEIR MANAGEMENT Developmental disability is not a term denoting clinical diagnosis but a grouping, established for the purpose of planning programme. Terms like mental retardation and epilepsy, on the other hand imply specific clinical diagnosis that fall into broad grouping know as developmental disabilities. The term handicapped in somewhat more inclusive than developmental disabilities but it is not the most acceptable term. Disabled is preferred and includes all forms of so called handicapping conditions. The dental condition of handicapped children may be directly or indirectly related to their physical or mental disabilities. The child born with cleft lip and palate or both may suffer from dental problems of great complexity and severity. MR children and those with cerebral palsy heart disease and bleeding disorders may not have specific dental problems but their physical or mental handicappers often hinder good oral hygiene and dietary habits, thereby creating a serious threat to their oral health. Defination A disabled child is one who has mental, physical, medical, or social conditions that prevents the child from achieving full potential when compared to other children of the same age. WHO – defines handicapped individual as one who over an appreciable time is prevented by physical or mental condition from full participation in normal activities of his age group, including those of a social, recreational, educational, and vocational nature. 1
  • 2. American Public Health Association (APHA) “A child who cannot within limits play, learn, work, or do things other children of his age can do, he is hindered in achieving his full physical, mental and social potentialities”. Harris defined 3 terms: 1) Impairment – lacking part of body or all limbs or having defective limbs, organ or mechanism of body. 2) Disablement- in loss or reduction in functional ability. 3) Handicap – is the disadvantage or restriction caused by disability. Mental Handicap Mental handicap is states of arrested or incomplete development of mind. Physical Handicap WHO (1952) states that child one who over an appreciable period of time is prevented by physical or mental conditions from full participation compared to children of same age group including social, recreational, vocational nature. Classification I) Franks and Winter (1974) a) Blind or partially sited. b) Deaf or partially deaf. c) Educationally subnormal. d) Maladjusted. 2
  • 3. e) Epileptic. f) Physically handicapped. g) Defect of speech. h) Senile. II) Holloway and Swallow (1982) Divided into 3 categories: a) Mental handicap. b) Physical handicap. c) Medical disability or disabilities. III) Nowak (1964) Classified into a) Physically handicapped. b) Mental retardation. c) Congenital defect (SABE, Fallots tetralogy). d) Metabolic and systemic disorders e.g., DM. e) Convulsive disorders. f) Childhood autism. g) Blind and deaf. h) Hemophilia. Management of a handicapped child during dental treatment Since hospital visits or previous appointments with physician frequently result in the development of apprehension in the patient, 3
  • 4. additional time with the parent and child is needed to establish rapport and dispel anxiety. If patient cooperation can’t be obtained, the dentist must consider alternatives such as physical restraints to perform dental procedures. Physical restraints Physical restraint is only one means of behaviour control to achieve an adequate level of dental treatment. Parents must be uniformed and given consent before use of physical restraints. Physical restraints is useful for managing extremely resistant patients who need dental care. Common mechanical aids for maintaining the mouth open are: - Padded and wrapped tongue blades. - Molt mouth prop – allows accessability to opposite side of the mouth and operates on reverse scissor action. Disadvantages – Lip and palatal laceration and luxation of teeth. Finger guard – It fits on the dentists finger. Disadvantage – Limited mobility of dentists hand. Rubber bite block (Mckesson bite blocks) These fit on occlusal surfaces of the teeth and stabilize the mouth in open position. Body control is gained through variety of methods and techniques like: Body - Papoose board. - Triangular sheet. 4
  • 5. - Pedi wrap. - Bean bag dental chair. - Extra assistant. Extremities - Posey straps. - Velcro straps. - Towel and tape. - Extra assistant. Head - Forearm body support. - Head positioner. - Plastic bowl. Physical restraints should never be used as punishment. An explanation of their benefits should be presented by the dentist before their use. The mouth prop can be identified as “tooth chair”, pediwrap as “safety robe” and restraining strap as safety but careful explanation should be given to patients, that physical restraints minimizes accidental injury and allow the needed dental work to be done. Prevention of handicapped child Prevention is the most important consideration in ensuring good dental health for any dental patient. 1) Home care – control of plaque, tooth brushing and flossing. 2) Diet and nutritional counseling. Home care The parents have a initial responsibility for establishing good oral hygienic in home. 5
  • 6. - Reinforcement of good home dental care and follow up observations can be provided through news papers, radio, TV. - If child is institutionalized, the staff should be instructed in the proper dental care programme. - Although independent brushing is not contraindicated, parents and staff should known that unsurprised oral hygiene procedures in disabled children can have serious dental consequences. - Since disabled patients have gross motor deficiencies, thus ability to brush is hampered. One technique often recommended is the horizontal scrub method because it is easy and yielded good result. Diet and nutrition: Diet and nutrition influence dental caries by affecting the types and virulence of the microorganism in dental plaque, the resistance of teeth and supporting structures and properties of saliva in oral cavity e.g. conditions associated with difficulty in swallowing, such as severe cerebral palsy, may require patient on liquid diet. Particular emphasis should be placed on discontinuation of bottle by 12 months of age after teeth begin to erupt, to decrease the likelihood of nursing caries. TYPES OF TRANSFER 1) Slide board transfer. 2) One person transfer 3) Two person transfer. 1) Slide border transfer – covered for patients who have good upper body strength and control but little or low lower body strength: 6
  • 7. a) Remove footrests and side arm nail. b) Raise dental chair arm. c) Place the wheel chain with brakes as close as to the dental chair, is the patient is hemiplegic position dental chair to his strong side. d) Adjust height of the dental chair corresponding to the height of the wheel chair. e) Patients and eat but and place slide board under the patient. f) Keep wheel chair from tipping while patient transfers. g) Place patients legs into position in the dental chair once he has transfer. 2) One person transfer – for patients who have moderate strength or body control, but may fluid slide board to tracing – paraplegic, patients with cerebral palsy, muscular dystrophy. a) Remove footrests on wheel chair and side arm. b) Raise the arm of dental chair. c) Place the wheel chair at approximately 30° angle to the dental chair to facilitate kivotar type motion during transfer. d) Sit the brakes and adjust the height of dental corresponding to the wheel chair. e) Infaster, patients seat belts and block the patients knee and foot closest to the dental chair with your knee and foot closes to dental chair. 7
  • 8. f) Have the patients place his hands around your neck while you hold patients waste or belt. g) On the predetermined signal help the patient stand, using his blocked knee and food as a pivot. h) Slowly pivot the direction of the dental chair and let the patient down into the chair. i) Place patients legs and body in proper position in the chair. 3) Two person transfer – used for patients with severely limited motor function in all extremities when using this teeth remember to keep the back and left with the legs. a. Follow ‘1’ through ‘7’ for the slide board transfer. b. Remove the head rest on the dental chair. c. One person approaches the patient from behind and has the patients cross his arms by possible, place your arm under the patients arm fits and grab the opposite wrist with each hand. a) The second person is responsible for lifting and guiding the lower limbs and should bend at the legs so as to lift with the legs, not the back. b) On a predetermined signal ask the patient to pur his elbows into his body and both persons doing the transfer lift the patient straight up stop for a second before you move laterally to the dental chair. c) Move laterally to dental chair, making so to clear any obstacles and lower the patient. 8
  • 9. Maintain support of the patients head until the dental chair headrest is replaced. MENTAL RETARDATION (MR) Definations Mentally challenged child-American Association of Mental Deficiency (AAMD) and reported by Holmes et al  “subaverage general intellectual functioning which originates during the developmental period and is associated with impairment in adaptive behaviour. MR is general term applied to persons whose intellectual development is significantly lower than that of normal persons and whose ability to adapt to their environment is consequently limited. Capute – defined subaverage general intellectual functioning “as developmental or intelligence quotient (IQ) that is below 70 and represents 2 or more standard deviation (ISD=15 or 16 patients) from a mean of 100. When this level of intellectual functioning exists concurrently with “impairment in adaptive behaviour” the inference is that the MR person does not possess the independence and social responsibility excepted within age and cultural group with the limit of 18 years of age. Thus, to diagnose MR – he should possess: 1) An IQ score of more than 2 SD below the mean (IQ below 70). 2) An accompanying impairment in adaptive behaviour. 3) Manifestations of both before 18 years of age. 9
  • 10. Classification 1) Mildly retarded – is one, who because of low intelligence, cannot derive full benefit from regular education. In academic environment these children are classified as educable mentally retarded (EMR). Educational programs for such children are generally simplified versions of regular school program and usually lead to literacy and attainment of necessary skill for employment. Most children (80%) of them in this group will function acceptably as adults. 2) Moderately retarded – children who are capable of some education and partial independence but who are not accepted to experience full independence as adults. Educational programs for such children, who are known as Trainable mentally retarded (TMR). Focus on basic skills, classification are often designed, furnished like home and the curriculum includes, dressing, grooming, cooking, table setting, feeding and cleaning. These children leave in a sheltered home with trained personnel. Classification of MR Degree of MR IQ School classification Communication Special requirements SB WISC-R Mild 67-52 69-55 EMR (Educable MR) Should be able to speak well, enough for communication Treat as normal child, mild sedation or nitrous oxide sedation Moderat e 51-36 54-40 TMR (trainable) Vocabulary language skills such that can communicate at Mild to moderate sedations restraints and reinforcements, GA in severe dental 10
  • 11. basic level decay. Severe or profound 35 and below 39 and below Non-trainable Mute or communication in grunts, no skills Same as for moderately retarded Classified MR into: 1) Idiot – IQ below 25 2) Imbecile – IQ 25 to 50 3) Moron – IQ 50 to 20 According AAMD 1) Mildly or educably retarded – IQ 69 to 55 2) Moderately or trainably retarded IQ 54 to 40 3) Severely retarded – IQ 39 to 25 4) Profoundly retarded – IQ below 25 WHO divided into 3 categories: 1) Mild subnormality with IQ of 50 to 69 and mental age in adult 8 to 12 years. 2) Moderately subnormality with IQ of 20 to 49 and mental age in adult 3 to 7 years. 3) Severe subnormality with IQ 0 to 19 and mental age in adult g 0 to 2 years. 3) Severely or profoundly retarded The child is often not trainable and requires supervision by trained support personnel. These are confined to institutions. They 11
  • 12. communicate with grunts, they lack communicable skills or they are mute. Etiology The etiologic classifications: 1) Prenatal Genetic diseases. Maternal and fetal infections. Kernicterus Fetal alcohol syndrome. 12
  • 13. 2) Natal Birth injuries Infection Cerebral trauma Hemorrhage Anoxia Hypoglycemia 3) Postnatal Cerebral infections. Cerebral trauma Poisoning Cerebral vascular accidents. Post immunization encephalopathy Malnutrition Dental treatment for MR Providing dental treatment for MR person requires adjusting to social, intellectual and emotional immaturity. The dentist should assess the degree of MR by consulting the patients physician. The following procedure have proved beneficial in establishing dentist-patient rapport. 1) Give a brief tour of the office before attempting treatment. Introduce the patient to the staff. This will reduce the fear of unknow. 13
  • 14. 2) Speak slowly and in simple terms. Make sure the patient has understood the explanations. 3) Give one instruction at a time. Reward the patient after successful completion of procedure. 4) Listen carefully to the patient, as the MR persons have less communicative skill and hence the dentist must be sensitive to the gestures. 5) Keep appointment short. Gradually progress to the different procedures. 6) Schedule the patient early in the day. 7) The medical history provides information regarding the cause and extent of the patients retardation. 8) Premedications can be helpful in allowing the anxieties of the retarded patient decrease. EPILEPSY The term epilepsy, which refers to a symptom, not a disease, is of Greek origin and means “to Seize”. Various disorders may cause abnormal neuronal discharge in the brain that may induce a seizure. Etiology Nelson et al described seizures disorders in children, divided into 2 groups idiopathic and symptomatic. In idiopathic- the epilepsies cannot be attributed to demonstrable structural lesion of the brain and are frequently a genetic origin. In symptomatic – group associated with pathology of the brain due to developmental anamolies, injury or disease of the brain. 14
  • 15. Seizures can be classified: 1) Grand mal seizures They are generalized, usually occurring with tonic and clonic phases of muscular spasm. - Their onset is rapid. - The patient loses consciousness and becomes pale. - Pupils dilate, eyeballs roll upwards or to one side. - There is rapid contraction of jaw muscles. - micturation and defecation may occur. - Patients experiences cyanosis during tonic phase (contraction of muscles lasts for 20-40 seconds). - The clonic phase (alternating contractions and relaxation) lasts for variable periods. - Patient awaken from the seizure with severe headache and in general state of confusion. 2) Petit mal These appear between 3 years of age and puberty, more in girls - There is transient loss of consciousness. - Occurs once or twice a month or several hundred times a day. - They last for 30 seconds. - Upward rolling of eyes. - Drooping or rhythmic nodding of head, quivering of trunk of thumbs. 15
  • 16. Psychomotor seizures They are difficult to recognize and control. - There is loss of postural tone. - There are no clonic and tonic movements. - The dentist should prevent the patients from injuring himself. Focal Seizures These seizures are produced by injury to the brain (trauma, toxic agents) - They are referred to as Jacksonian seizures. - They are sensory or motor and are clonic in nature. - The muscles most frequently involved are the most specialized for voluntary movements in the hand, face, tongue. Dental Management Most convulsive disorders are controlled through medication and pose few problems in dental treatment. The dentists should ask the following questions during history taking of all seizures patients. 1) What was the age of the patient at the time of onset of the seizure. 2) How many types does the patient have. 3) What is the frequency of seizures. 4) Does the patient tend to injure himself during the attack. 5) Do the seizures occur at any particular time of the day. 16
  • 17. 6) How does the patient act immediately preceeding the seizure and after the seizure is over. 7) What type of medications is the patients taking and when is it taken. During the treatment - Since anxiety is frequently precipitating factor, premedication with minor tranquilizers can be considered. - The drug regime of the patient should be evaluated. - The use of mouth prop is mandatory during treatment. - The dental units must be pushed away from the working field. In case the patient during tonic phase of seizure to avoid injury. - They major concern of the dentist during seizure is to ensure that patients does not suffer physical harm. - Loosen the patients clothing. - Turn the patients head to the side, pull the rubber dam material on youngs frame to evacuate the oral secretions. - Always talk to the patients, where he is, who are you, every thing is fine. If his restorative procedure have already stated, either temporize or complete the procedure, unless some injury has occurred or systemic parameters are not within normal range. - If appliance are indicated for tooth movements or tooth replacement purpose – fixed type is preferred. - Appoints should be given just after the patient has taken daily medications. 17
  • 18. CEREBRAL PALSY Nelson et al used the term cerebral palsy to describe a group of nonprogressive disorders resulting from malfunction of motor centers and pathways of the brain. These are characterized by paralysis, weakness, incoordination, or other aberrations of motor function that have their origin prenatally, during birth, or before the CNS has reached relative maturity (before age 5). A person with cerebral palsy characteristically has a motor disability that is manifested as a loss or impairment of voluntary muscle, weakness, stiffness or paralysis, poor balance or irregular gait and uncoordinated or involuntary movements. Etiology - Decreased oxygenation of the developing brain. - Complications of labor or delivery. - Infections of the brain-encephalitis, meningitis, toxemias. - Congenital defects of brain. - Accidents resulting in trauma to the head. - Premature births. - Poisoning with certain drugs. The term commonly used to designate involved areas of the body. 1) Monoplegia involvement of one limb only. 2) Hemiplegia involvement of one side of the body. 3) Paraplegia involvement of both legs only. 18
  • 19. 4) Diplegia involvement of both legs with minimum involvement of both arms. 5) Quadriplegia involvement of all the limbs. Classification CP 1) Spastic (70% of cases). - Caused by lesion in the cerebral cortex. - Hyper irritability of involved muscles resulting in exaggerated contraction when stimulated. - Characterized by tense, contracted muscles. - Limited control of neck muscles, resulting in head roll. - Lack of control of the muscles supporting the trunk, resulting in difficulty in maintaining upright posture. - Lack of co-ordination of intraoral perioral, and masticatory musculature. Possibility of impaired chewing and swallowing, speech impairment, drooping of saliva. 2) Athetosis (25% of the cases) - Caused by lesion in the basal ganglion. - Slow writhming involuntary movements and interferes with normal muscle action. - Muscle normal with no spasticity. - Involuntary movements. - Neck musculature frequently involved resulting in excessive movement of the head. 19
  • 20. - Uncontrolled jaw movements, abrupt closure of jaw and bruxism. - Perioral musculature frequently hypotonic with mouth breathing drooling of saliva. - Speech problems. 3) Ataxia (10% of the cases) - Caused by lesion in cerebellum. - Disturbance in equilibrium – staggering gait, stumbling, difficulty in grasping objects. - Possibility of tremors and uncontrolled trembling on attempting voluntary tasks. 4) Rigidity (5% of the cases) - Caused by lesion in basal ganglion. - Constant rigidity. - Voluntary movements slow and stiff. - Patients resistant to flexor and extensor movements with contraction of agonist and antagonist. 5) Tremors (5% of the cases) - Caused by lesion in basal ganglion. - Repetitive, rhythmic involuntary contraction of flexor and extensor muscles. Orodental characteristics associated with CP 1) Spastic - Limited head movement. 20
  • 21. - Hypertoxicity of facial muscles. - Slow jaw movements. - Spastic tongue thrust. - Constricted maxillary and mandibular arches. - Unilateral cross bite. 2) Athetoid - Excessive head movement. - Quick jaw movements. - Grimacing and drooping. - Mouth breathing. - Tongue protruding. - Bruxism. - High, narrow palate vault. - Malocclusions. - Anterior open bite. - Poor swallowing. 3) Ataxia - Lack of balance. - Slow tremor like head movements. - Tongue protrusion and anterior openbite. - Drooling and grimacing. 21
  • 22. General disabilities with CP - Speech disorders – 50% - 75% - Mental retardation – 45%. - Visual defects – 20% to 50%. - Seizures – 35% to 60% - Deafness – 10 to 30%. Dental problems: - Periodontal disease. - Dental caries. - Malocclusions. - Trauma. - Bruxism. Dental management 1) Consider treating patient confined to a wheel chair. Many express such preference for young patients, the wheel chair may be tipped back into dentists lap. 2) If a patient is to be transferred to the dental chair, ask about a preference for the mode of transfer. 3) Make an effort to stabilize the patients head throughout all phases of dental treatment. 4) Try to place and maintain the patient in the midline of dental chair with arms and legs as close to body. 22
  • 23. 5) Keep patients back slightly elevated to minimize difficulties in swallowing (not in supine position). 6) On placing the patient on dental chair determine patients degree of comfort and assess the position of extremities do not force the limbs to unnatural position, consider pillows and towels for support. 7) Use physical restraints judiciously for controlling failing movements. 8) For control of involuntary jaw movements choose from variety of mouth props and finger splints. 9) To avoid startle reflex reaction, avoid such stimuli as abrupt movements, noises and lights without forewarning the patients. 10)Introduce intraoral stimuli slowly to avoid eliciting a gag reflex. 11)Use rubber dam for restorative procedures. 12)Work efficiently, and minimize patient time in chair to decrease fatigue of involved muscles. 13)Pre medication is a useful modality in management in case of fear and apprehension. 14)If the patient is difficult to manage, GA is considered. DEAFNESS Deafness is a handicap that is often overlooked. Almost inevitably, speech in affected. If the impairment is severe enough that dentists and child cannot communicate verbally, the dentist must use sight, taste and touch to communicate and allow the child to learn about dental experiences. 23
  • 24. The causes for hearing loss 1) Prenatal factors - Various infections – rubella, influenza. - Ototoxic drugs. - Congenital syphyllis. - Heredity (waardenbarg syndrome). 2) Perinatal factors - Prematurity. - Birth injury. - Anoxia. 3) Post natal factors - Various infections – mumps, measles influenza, poliomyletis, meningitis. - Injuries. - Ototoxic drugs – aspirin, streptomycin, neomycin, kanamycin. Dental Management 1) Prepare the patient and parent before the first visit. 2) Through the parent, determine during the initial appointment how the patient desires to communicate, thus decreasing the child fears. 3) Assess speech and language ability and degree of impairment by taking a complete history. 4) Face the patient and speak at natural pace and directly to the patient, so that the patient can lip read. 24
  • 25. 5) Watch the patients expression make sure the patient understands what dental equipments is, what is going to happen and how it will feel. 6) Reassure the patient with physical contact, hold the patients hand initially. 7) Employ tell-show-do approach, allow the patient to see the instruments and demonstrate how they work: E.g. vibrations of handpiece, scratching of explorer, scooping of excavator, texture of rubber dam. 8) Use smiles and reassuring gestures to build up confidence and reduce anxiety. 9) Avoid blocking the patients visual field. 10)Adjust the hearing aid (E.g., the patient has one) while the handpiece is the operation since hearing aids amplify the sounds. BLINDNESS A person is considered to be affected by blindness if the visual acuity does not exceed 20/200 in better eye, with correcting lens or if the acuity is greater than 20/200 but accompanied by visual field of no greater than 20 degrees. Etiology of Blindness Prenatal causes - Optic atrophy. - Micropthalmus. - Cataracts. 25
  • 26. - Colobomas – defective growth. - Dermoid and other tumors. - Toxoplasmosis. - Cytinegalic inclusion disease. - Syphilis. - Rubella. - TB meningitis. - Developmental abnormalities of the orbit. Post natal causes - Trauma. - Retrolental fibroplasia. - Hypertension. - Premature birth. - Polycythemia vera. - Hemorrhage disorders. - Leukemia. - Diabetes mellitus. - Glaucoma. Blindness is one disorder that may result in frequent hospitalization, separation from family and slow social development. Dentist should relize that congenitally blind children need greater display of affection and love early in life. Explanation is accomplished through touching and hearing, reinforcement takes place through smelling 26
  • 27. and tasting. The modalities of listening touching, tasting and smelling are important for blind children. Reports reveal that motor activity affects the development of language and perception. Blind children tend to have more accidents than other children while acquiring motor skills. Trauma to anterior teeth, gingival inflammation because of inability to see and remove plaque. Before initiating treatment for blind dentist should keep following points in mind. 1) Determine the degree of perception of the light (visual impairment) e.g., can the patient tell light from dark. 2) Avoid expressions of pity or references to blindness as an affliction. 3) In maneuvering the patient to the operatory ask the patient for assistance. Do not grab, move, stop without verbal warning. 4) Describe the office setting. Always give the patient adequate descriptions before performing treatment procedures. 5) When making physical contact, do so reassuringly. 6) Introduce other office personnel very informally. 7) Allow the patient to ask questions about the course of treatment and answer them. 8) Allow the patient who wears eyeglasses to keep them on for protection. 9) Avoid sight references. 27
  • 28. 10)Rather than tell-show-do approach, invite the patient to touch, taste, or smell. 11)Describe in detail instruments and objects to be placed in patients mouth. 12) Demonstrate rubber cup on patients fingernail. 13)Holding the patients hand promotes relaxation. 14)Since strong taste may be rejected use smaller quantities of dental materials with such characteristics. 15)Explain the procedure of oral hygiene and then place the patients hand on yours as you slowly guide the tooth brush. 16)Use audiocassettes for explaining specific dental procedures and decrease chair time. 17)Avoid unexpected loud noises. 18)Limit the dental care to one dentist. Down’s Syndrome Synonyms – Mongolism, Trisomy 21 It is one of the most common chromosomal disoders. Etiology Chromosomal abnormalities is Trisomy 21 or presence of extra autosome (Thompson 1973). Incidence : 1.5 in 1000 births. 28
  • 29. Features Body growth : small stature due to retardation in appositional and endochondral growth. Head : Microcephaly with prominence of forehead, shortening of anteroposterior diameter flattening of the occiput. Eye : - Upward, outward slant and epicanthal folds. - Speeling of iris (brush field spots). - Hypoplasia of iris. - Chronic inflammation of conjunction. Orbit :Smaller than normal. Face : - Round flat face. - Flat nasal bridge. - Upper facial height decreased. Mouth: - Under development of maxilla contributes to open mouth and protruding tongue. Tongue : - Normal at birth. - Older patients – fissured or macroglossia. Teeth: - Microdontia. 29
  • 30. - Conical tooth. - Over retention of primary teeth. - Aberrant eruption pattern. - Anadontia, oligodontia, supernumerary teeth. Palate : Narrow and high vault. Limbs: - Short, broad hand digits and feet. - Wide space between first and 2nd toe. - Synductaly of fifth finger. Ears – Anamolies in formation of external ear. Skin : Dry, hyperkeratosis common. Neck : Broad and short. Nervous system - Level of intelligence – mild to severe. - General movements slow, sluggish, clumsy. - Unsteady gait. - Feet kept wide apart. Periodontal status – Prevalence of periodontal disease is higher than normal populations. Systemic condition - Cardiac diseases – 27-35%. - Increased incidence of abnormality in WBC. 30
  • 31. - Increase incidence of RTI. - Congenital heart disease, respiratory tract infection in 1st 5 years. Common malformation - Articular spethal defects. - Insufficiency of AV value. - Ventricular septal defect. (Should follow the guidelines for SABE coverage). Management DS patients can be treated in dental office with tolerant and sympathetic approach. - Most of them are affectionate and cooperative, cheerful and well behaved. - Decreased resistance to infection should be considered while treating. Heart Diseases Heart diseases can be divided into: a) Congenital. b) Acquired. Because individuals with heart disease require special precautions during dental treatment such as antibiotic coverage for prevention of SABE, a dentist should closely evaluate the medical history to ascertain CVS status. 31
  • 32. Congenital Heart Disease Incidence – 9 in 1000 birth. Types: a. Venticular septal defect. b. Patent duction arteriosus. c. Fallots tetralogy. d. Transposition of great vessels. e. Artral septal defect. f. Pulmonary stenosis. g. Coartation of aorta. h. Aortic stenosis. i. Tricuspid atresin. Etiology: - Unknown. - Aberrant embryonic development of normal structure. - Failure of structure to progress beyond embryonic development. Others - Maternal rubella infection. - Chronic maternal alcohol abuse. Types - Cyanotic - Acyanotic 32
  • 33. Acyanotic is divided into 2 groups: 1st group – defects that cause left to right shunting of blood. - Includes – VSD, ASD CF - Murmurs. - H failure. - Pulmonary congestion. - Heart murmur. - Labored breathing. - Cardiomegaly. 2nd group - Defect caused by obstruction. - E.g., stenosis of aorta. CF - Labored breathing. - CCF. Cyanotic congenital heart disease Characterized by right to left shunting of blood within the heart. - Cyanosis occurs during mild exertion e.g., fallouts tetralogy, transposition of vessels pulmonary stenosis. CF - Cyanosis 33
  • 34. - Hypoxic cells. - Poor physical development. - Heart murmurs. - Clubbing of fingers. Acquired heart disease Rheumatic fever: - Inflammatory disease that occurs as a delayed sequela of pharyngeal injection. - Caused by streptococci. - Infection can involve heart, joints, skin, CNS, subcutaneous tissue. - Occurs commonly between 6 to 15 years. - Prevalent in temperate zone and high altitude. - Carditis develop in 50% of patients. Jones criteria in diagnosis of RF Major manifestation Minor manifestations Supporting evidences Carditis polyarthritis chorea Erythema margination Subcutaneous nodulus - Fever - Arthralgia. - Previous history. - RF or heart disease - Increased erythocyte SR (E.S.R.) - +ve c-reactive protein. - Prolonged PR interval. Evidence of preceeding streptococcal infection. Positive throat culture group A streptococcus. Infective bacterial endocarditis 34
  • 35. Characterized by microbial infection of heart valves or endocardium in proximity to congenital or acquired cardiac defects. Divided into : - Acute - Subacute Acute – disease that usually occurs as a result of microorganism of high pathogenicity, causing erosive destruction of valves. Microorganisms - Staphylococcus. - Streptococcus group. - Pneumococcus. Subacute – In contrast SABE develops in persons with preexisting congenital cardiac disease. - Commonly caused by Viridans streptococci. CF - Embolization. - Microorganism may colonize on endocardium. Symptom - Irregular fever. - Malaise. - Anorexia. - Weight loss. - Arthalgia. - Cardiac murmurs. 35
  • 36. - Painful fingers, toes, skin lesions. Lab findings - Leukocytosis. - Increased ESR - Bacterimia. Precipitating factors 1) Dental manipulation – induce gingival bleeding. 2) Incision and drainage of infected tissues. 3) Tonsillectomy. 4) Bronchoscopy. 5) GI instrumentation. 6) UT instrumentation. 7) IV catheters. 8) Valvular prosthesis. Dental Management - History. - Medical and physical examination. - Discuss with the physian. - Adequate antibiotic therapy. - Cardiopulmonary resuscitation equipment should be available. 36
  • 37. Following considerations: 1) Pulp therapy for primary teeth is not recommended – therefore, increase incidence of chronic infection – extrusion and SM. 2) Endo therapy – in permanent teeth can usually accomplished and performed adequately. 3) Patients with cardiac pacemakers with existing congenital defect or disease prophylactic antibiotic coverage to prevent SABE is not indicated. HEMOPHILLIA This is most common congenital blood coagulation disorders which produces serious bleeding episodes. This is caused due factor VIII (A) deficiency and factor IX (B) deficiency. Hemophilia is inherited as an X linked recessive tract. Therefore all males who possess the defective X chromosome have clinical manifestations of disease and females are caries. Another bleeding disorder, frequently confused with hemophilia is Von Willebrand disease. This disease is inherited via autosomal dominant gene affecting males and females. The person with this disease have mild deficiency of factor VIII and abnormal platelet function. 37
  • 38. Classification of hemophilia Degree % of VIII and IX Characteristics Severe <1 May be frequent spontaneous bleeding into joints and muscles. Moderate 1-5 Occasional spontaneous joint bleeding, minor trauma may initiate hemorrhage. Mild 5-35 Significant hemorrhage only after major insult such as extraction. Dental management of hemophilia The dental treatment of a patient with hemophilia necessitates thorough understanding of this patients disorder. It is important that the nature of disorder be determined through interviews with parents and childs physician. Before starting the treatment, the dentists should undertake thorough medical history about this disease. It is especially important to avoid tissue laceration or other intraoral trauma. The following patients are important in treating the patient. 1) The relief of anxiety has been shown to be beneficial in maintaining hemostasis – by premedication, nitrous oxide inhalation, hypnosis. IM transquilizing analgesic agents in contraindicated as it can cause hematoma. 2) In absence of factor replacement, intraligamental injection may be used. Block anesthesia is not recommended, local infiltration can be easily administered after single infusion of factor replacement. 38
  • 39. 3) Teeth can be cleaned by rubber cup minor haemorrhage can be controlled with local mechanism such as direct pressure. For minor hemorrhage topical application of bovine thrombin may be used. 4) Most of restorative procedure and pulp therapy on deciduous teeth can be successfully completed without discomfort through use of acetaminophen with iodemic with nitrous oxide inhalaton. Hemophilia If the child with hemophilia sustain oral trauma with excessive bleeding following modalities. 1) Hemorrhage associated with laceration of OMM – single dose factor cocnentrate that raises the level of factor 50% of normal E-ACA continued until epithelization is complete. 2) Laceration which requires suturing repeated doses of factor which level of at least 25% of normal is maintained E-ACA infusion continued until the wound is healed. 3) Extraction of primary teeth or permanent, factor VIII infusion of 100% of normal and loading dose of E-ACA maintenance dose of E-ACA for 7 to 10 days. Extraction of teeth begin within 1 hour after infusion. Adjunct local measures to control bleeding should be considered. Like avitum or oxidized cellulose material impregnated with bovine thrombin. Patient must be give very specific instruction – strict diet for 2 weeks – 1st 22 hours liquid diet. Dairy products should not be allowed as they leave film residue. Next week soft diet after 10 days – normal diet. 39
  • 40. E-amino caperi acid (E-ACA) As adjunct to factor replacement therapy. In hemophilic patient, there is normal Fibrinolytic mechanism but generation of thrombin necessary for clot is decreased. Thus, the clots get dislodged. The fibrinolytic mechanism is inhibited by E-ACA to form stable clots. Desmopressin acectate - Antidiuretic hormone – causes increased levels factors VIII. 4) Particular care must be taken in placement of IOPA films and use of high suction or saliva ejector. 5) The use of rubberdam with greatly assist in protection of soft tissues clamps with subgingival extension should be avoided. 6) Conventional pulp therapy is preferable to tooth extraction. Intrapulpal injection can be used to reduce pain. Hemorrhage from pulp chamber can be reduced by pressure packs. Dental care Preventive Dentistry Prevention of dental diseases requires a combination of diet, plaque control regular continuing professional care. Parents should be made aware that as gingival health improves, minor bleeding caused by brushing will stop or treated by topical bovine thrombin. Flossing should be taught only to those parents and patients who appear capable of mastering the techniques. In severe hemophilias, fluoride therapy, to be done every 3 months using custom trays. 40
  • 41. Periodontal disease Treatment of the periodontium is one of the most neglected aspects of children. Simple dental prophylaxis and topical fluoride application can be easily done in severe hemophiliases provided meticulous care is exercised to prevent gingival trauma. Calculus may be removed in stages in order to reduce bleeding risk. Initially, gross supragingival scaling is done, allowing the gingival inflammation to subside, as the inflammation resolves remaining calculus can be removed. For deep scaling, replacement therapy should be used prior to the treatment. Restorative Dentistry Extra care should be taken to avoid soft tissue injury. Routine use of rubber dam is helpful in protecting patients lips and tongue from trauma, clamps such as ivory No. 8A and 14A should be avoided for gingival damage, clamps such as SS white No.22. 201. Extra care must be taken during passing the rubber dam through contact points with dental floss to avoid “snapping” of floss into interproximal gingiva. Stainless steel crowns can be avoided when possible to prevent gingival bleeding and laceration. Endodontic procedures These are highly recommended in children to lower the need for extaction. Pulp bleeding can be controlled easily without replacement therapy. Extra care is taken to prevent periapical trauma. 41
  • 42. Oral surgery Prior to surgical procedures, missing blood factor is replaced. During extraction procedure. Lucas and others advocate combination of absorbable hemostatic agents and topical bovine thrombin. Lucas, saturates oxidized regenerated cellulose with bovine thrombin dissolved in 0.5% sodium percarborate solution. After socket is dried, surgicel is used to fill the socket within 1 mm of the surface lucas then covered the wound with splint. Orthodontics Although bands should be avoided when possible, much can be done with adhesive brackets or removable appliance in orthodontic management of malocclusion. In severe bleeders however, it is not suggested that bands be used on any teeth. AUTISM In 1944 Kaner described clinical syndrome in children to which negave name infantile autism. He described that one symptom with the disease was an viability to relate approximately to the people and situations. These childrens are seem to be self sufficient and introverted and want to be left alone. - They have no attachment to parents. - They relate poorly to persons. - They remain occupied water moving or shining objects such as keys, spinning tops for hours. 42
  • 43. In 1980, diagnostic and statistical manual of mental disorders published by APA listed autism as neurological disorders, caused by physical disorder of the brain. Incidence – 2.5% in 10000 population – Kanueer and Lesser 1958. Etiology - Lotter (1966) – postulated that personalities attitudes and behaviour of the child’s parents contibute the autism. - Bakwin and Bakwin early manifestation of childhood schirophamia. - Children who have been brought up in institution where they received no stimulation and totally deprived. – Kammer Features - Language – impaired invariability. - 2/3rd achieve active functional speech but 1/3rd remain without functional language. – (Robin son and Milins 1976). - Even the speech is a acquired they hardly speak. - When speech is present they repeat the word or phase. - They have difficulty in saying yes. Behaviour - Intense desire to maintain consistency in the environment. - Inappropriate reachers to fearful situations. - Prone to transforms and aggressive or destructive behaviour. - Bizarre behaviour makes dental management difficult. 43
  • 44. Management Loovoos et al (1974) reported behaviour modification techniques. The key to all behaviour modification programs lies in the positive reinforcement to promote desirable behaviour. In early stages, sweet foods can serve as desirable rewards. In later stages of modifying behaviour such oral rewards should be changed to social rewards, such as pat on the back or a hug. - In the interest of time , premedication of ketammic in useful. - GA is method of choice. Cleft Lip and Palate Cleft lip with cleft palate is severe birth defect occurring in newborn infants. Cleft lip and cleft palate are among common congenital malfunctions occurring in orofacial region. The variable morphology of the congenital anamoly ranges from soft tissue defect involving either lip or soft palate with complete separation of the oral and nasal cavities. The associated defects with this are malformed teeth, malocclusions, impairment of speech, middle ear infection, URTI. Incidence - One in 750-1000 newborns in USA. - In whites – one is 800 births. - In blacks – one in 2000 births. - Japanese - one in 500 births. 44
  • 45. - Cleft lip and palate lengthen account for 50% of all cases. - Isolated cleft lip and palate occur in 25% each. - Males are commonly affected. A number of classification have been proposed but one of them have been universally accepted. I) Davis and Ritchie (1922) Group I – Prealveolar clefts – lip clefts only with unilateral, median and bilateral. Group II – Post alveolar clefts – involves soft and hard palates. Group III – Alveolar clefts – complete clefts of palate, ridges and lip. II) Fitz and Gibbon (1930) 1) Cleft of the soft palate. 2) Cleft of soft and hard palate. 3) Cleft of the soft and hard palate with single hard lip. 4) Cleft of soft and hard palate, with double hairlip and deteched premaxillae. 5) Cleft of soft and hard palate, edentulous. I) Vean (1931) classification of cleft lip and cleft palate a) Cleft lip Class I – unilateral notching of vermillion border but not extending into the lip. 45
  • 46. Class II – unilateral notching of the vermillion border with cleft extending into the lip but the floor of the nose. Class III – unilateral cleft the vermillion border of the lip, extending into the floor of the nose. Class IV – Any bilateral cleft lip whether this be incomplete notching or complete clefting. b) Cleft palate Class I – involves only the soft palate. Class II – involves only the soft and hard palate, but not alveolar process. Class III – involves both soft and hard palate and the alveolar process oneside of the premaxillary area. Class IV – involves the soft and hard palate and continues through the alveolus on both sides of premaxilla, leaving a free and mobile. 46
  • 47. III) Fogh – Anderson (1942) Group I – Harelip – single, double Group II – Harelip and cleft palate – single, double. Group III – Cleft palate IV) Olinger classification (1952) Class I – fissure in azygos uvuale Class II – Fissure in uvuale Class III – Fissure in soft palate Class IV – Fissure in soft and hard palates. Class V – unilateral cleft, fissure in the soft and hard palates, then alveolar ridge at junction of maxilla and premaxilla accompanied by cleft lip. Class VI – bilateral cleft, fissure in soft and hard palates through the alveolar ridge at the junction of the maxillae, accompanied by cleft lip. V) Kernahan and Stark (1953) This pattern is widely accepted and utilized. Group I – (clefts of primary palate anterior to inclusive foramin)- Cleft of the tip (CL), all forms of degrees of cleft lip, and combination cleft lip and cleft alveolar process. Group II – Cleft lying posterior to incisive foramin on degrees of clefts of soft and hard palates. Group III – Combination of clefts of both primary and secondary palates involves combination of group I and group II. 47
  • 48. Subdivision Group I 1) Unilateral cleft lip – incomplete 2) Unilateral cleft lip – complete Group II 1) Cleft lip involving the soft palate only. 2) Cleft lip involving the soft palate and hard palate. Group III 1) Unilateral cleft lip with complete cleft of soft and hard palate. 2) Bilateral cleft lip with complete cleft of soft and hard palate. VI) International confederation for plastic and reconstructive surgery 1968 Group I – clefts of anterior palate (primary) a) Lip right / left b) Alveolus right / left Group II – clefts of anterior and posterior palate c) Lip right and left. d) Alveolus – right and left. e) Hard palate – right and left Group III – clefts of posterior (secondary) palate a) Hard palate – right and left. b) Soft palate median 48
  • 49. Etiology Extent etiology of CCP is still unknown but few accepted theories. 1) Exogenous tract factors Like – Rubella Thalidomide drugs 2) Mulant genese and chromosomal aberration. Mutant genes – ectodermal dysplasia Chromosomal aberrations – D-trisomy and E-trisomy 3) Multifactorial causes Contribution of both with heredity. Pathogenesis Cleft lip According to mesodermal deficiency theory the lip and premaxilla in their early forms as an ectodermal good in which 3 masses of mesoderm are present. Normally these masses grow and limit to form the upper lip and premaxilla, but failure of the growth leads to infiltration of the ectodermal head a consequent weakening of this delicate membrane induces a rupture of the head and a cleft lip results. Cleft palate This commonly accepted that cleft palate results from the failure of the palatal shelves to meet and fuse in the midline. 49
  • 50. Causes are: 1) Failure to displace the tongue from between the shelves may prevents closure. 2) Fusion may be prevented because shelves are too narrow to meet in the midline or because of other structural defects. 3) Normal palatal shelves may not meet in the midline is an individual ha an incisally wide head. Oral findings - Natal or neonatal teeth with complete or bilateral cleft palate. - Congenitally missing teeth. - Supernumerary teeth. - Ectopic eruption of deciduous lateral incisor. - Anomalies in morphology. - Enamel hypoplasia. - Microdontia, macrodontia. - Fusion of teeth. - Lateral facial profile convex. - Rotation of teeth. Extraoral features  Defects of extremities syndectyl (webbed fingers) and malformation of lower extremities.  Upper respiratory tract infection. 50
  • 51.  Congenital heart disease.  Hearing problems caused by middle ear infections speech impairment. Evaluation of the child Careful history of pregnancy, labour, delivery, and family history. - Look out for congenital abnormalities. - If present eyes to gene therapists, so that etiology and mech can be explained. Other consultation should be addressed depending on the physical examination by EMT, opthalmologist, cardiologist, pediatrician prior to surgery. Also refer the child to psychologist, speech pathologist, radiologist. Pre surgical management (counseling) It is extremely important because almost all the patients have same concerns. This will help the parents to warmup. Feeding First goal is to prepare the child for surgical response of lip. Before surgery the child should have following criteria – 10 weeks, weight 10 pounds and 10 gms of tbl spoon – ‘3 times law’. Feeding plates Feeding problems arise in the case of bilateral and unilateral cleft. A feeding plate can be made to cover the roof of the mouth to prevent food entering nasal cavity. 51
  • 52. Stage (maxillary orthopedic stage) birth to 18 months Feeding problems are often associated with clefts, making it difficult to maintain adequate nutrition. - Insufficient suction to pure milk excessive out intake, nasal discharge. McNeil (1950) – Obturator Advantages 1) Provides false palate against which the infant can suck reducing feeding problems. 2) Provides maxillary cross arch stability and prevents arch collapse. 3) Orthopedic moulding cleft segments in to approximation before bone grafting. Indications - Complete cleft tip and palate. - Maxillary orthopedic moulding of segment after surgical closure of lip. Procedure: - Impression of maxillary arch is made in stock tray. - The infant is held upright during impression to prevent, aspiration of excess material. - Appropriate emergency equipment, forced oxygen, suction and airway management system should be available. 52
  • 53. Fabrication - Block out all the undercuts with wax. - Separating media is applied. - Fabrication of the appliances using self cure resin. Clinical management (Birth – 3 months) - Area of excessive pressure relived. - Maintaining hygiene. - Recall the after 2 days of initial placement. - Recall every 15 to 1 month. The primary function of cleft palate clinic are to evaluate and planning of rehabilitative needs of his patient. To obtain optimal rehabilitation each number of the discipline involved have general problem faced by other members of the team, is excessive and prolonged orthodontic treatment required in separate stages: 1) Infancy before initial surgical repair of lip. 2) During primary and mixed dentition stage. 3) During late mixed dentition and early permanent dentition stage. 4) In later teeths after the complication of facial growth in conjunction with orthognathic surgery. Infant Orthopedics If presurgical movement is indicated it is carried out 3 to 6 weeks of age that lip closure can be carried out 10 weeks. A passive plate similar to orthodontic retainer is used for months after lip closure. 53
  • 54. Later primary and early mixed dentition treatment The result from surgical correction of lip closure some constitution across the anterior parts of maxillary arch is created. Orthodontic intervention is often unnecessary until permanent incisors begin to erupt. There is tendency that maxillary anterior erupted rotation and with crossbite. This can be corrected by fixed and removable appliance. Pre-surgical orthopedics: The growth potential of the nasal septum is extremely powerful when the lip is normal, the forces are directed anteriorly along the midline. If there is a muscle pull to one side because of a unilateral cleft these two forces combine to pull the major segment to non cleft side. Therefore if an opposing force to nasal septum and to the muscle pull can be applied the distortion can be minimized. If at the same time a shearing force can be applied to minor segment, the major and minor segments of the alveolus and lip can pulled together. This makes the task of plastic surgeon repairing the lip defect much easier. The active force can be provided by 3 pieces of tape joined together by 2 elastic bands. The central portion of the tape tends to cup the premaxilla in bilateral cleft case thus stabilizing the segment strapping should be applied immediately after birth and continue till the time of surgery. In this way tension in the tissues is minimized version facial skin as the repeated changing of the strapping 54
  • 55. means that the tape must be removed from the face this can result in the skin becoming sore using a barrier dressing or leaving an additional piece of tape on the face minimizes the effects of this recurrent trauma. In the case of bilateral clefts, the lateral segments tend to approximate, resulting in the blocking out of the premaxilla. To prevent this an oral plate must be fitted to stabilize or even move the lateral segments buccally when the cleft of palate is unilateral, an active plate can be used to stabilize or prevent collapse of the segments and narrowing of the maxillary arch. One type of expansion plate is constructed on a cast that has been cut and the segments reposition by upto 3mm. Alternatively a plate with a spring in the anterior region and a hinge in the posterior region can be fabricated to give a differential expansion. An active plate unlike the passive feeding plate must be worn at all times. This plate is kept in position by the action of the tongue, the force generated by the baby acting together an extraoral were “whiskers” which are taped to babys face. Orthodontics The goal of orthodontic treatment is to provide an aesthetically acceptable and healthy dentition for life and to contribute positively to the 55
  • 56. general facial form and appearance. An orthodontist working with clefts, children before starting treatment two important parameters. 1. First with regard to the timing of orthodontic treatment. 2. Most patients have complex orthodontic problems dental problems specific to cleft and palate. 1. Congenitally missing teeth. It has shown that children who have clefts of the maxilla have a higher incidence of congenitally missing teeth. This is true not only the immediate area of cleft but also the contralateral side and the opposing arch in complete unilateral clefts. 2. Supernumerary teeth A greater incidence of supernumerary teeth in the cleft lip and palate patient. The maxillary lateral incisor area is affected most often, especially when it is in the direct line of the cleft. When cleft occurs it affects the angle of the lateral incisor and can split it in two. The teeth are ectopic in position smaller in size and expandable. 3. Other tooth anomalies These include: a. Fused. 56
  • 57. b. Irregularities of tooth size, ectopic eruption, malformation of individual teeth delayed eruption of mandibular teeth ankylosis of teeth adjacent to the site of the cleft lack of bony base over which teeth might be moved. Presurgical period When pre-operative orthopedic treatment was introduced at many clefts center in 1950’s. The above principles and objectives its adoption was resisted for the following reasons: 1. The surgeons felt they did not need it. 2. At the time pre-surgical orthopedic treatment was introduced. 3. The teem particularly the orthodontist were worried that pre-surgical orthopedics may have a adverse effect on maxillary growth. Pre surgical orthopedic treatment has now been used extensively in Europe and limited states for over 30 years. Treatment Procedures Orthodontic care is considered here in 3 phases, during the primary, mixed and the permanent dentition. 57
  • 58. Primary dentition phase The extent of a malocclusions is usually lees apparent in the primary dentition. Then in the permanent dentition, treatment is difficult in the primary dentition because of the lack of good teeth for anchorage. - The presence of a bulky appliance in the mouth may contribute to speech problems. - The level of cooperation that can be expected from a child of this age is fairly limited. - In addition as children grows relapse commonly occurs. Even when there is evidence of a high arching palate due to lateral collapse or retrusion of the maxilla it is usually better not to perform any active treatment in the primary dentition. Mixed dentition phase By the mixed dentition stage most of not all of the anterior teeth in the region of the cleft will have erupted. They are frequently malformed, hypoplastic and erupt in ectopic positions or missing the rationale of treatment was to reduce cross bites and create functional environment. As a general rule orthodontic treatment during the mixed dentition limits itself maxillary arch. 58
  • 59. For example in complete, unilateral and bilateral clefts if buccal segments crossbite exists to reduce the first. If the maxillary central incisors erupt in lingual version or rotated and ectopic. This requires another phase of treatment. If the maxillary first permanent molars erupt in crossbite and lateral incisors in lingual version, this to necessitates, additional treatment. There are number of techniques available for reduction of bilateral buccal crossbites. 1. Quad helix appliance. 2. A rapid maxillary expansion device. Permanent dentition phase By the permanent dentition stage growth is nearing completion and magnitude of any deformity can be readily assessed. Hence this is the most appropriate time for performing orthodontic therapy. There may be abnormalities in the position of the teeth or the jaws. In the case of later the discrepancies can be considered in 3 planes: 1. Transverse. 2. Anteroposterior. 3. Vertical. The transverse relationship may be such that a posterior crossbite. This is usually more in the region of the minor segment adjacent to the 59
  • 60. cleft. The collapse of the arch may be due to repair of the lip. It is more due to scar tissue arising from the palatal repair which has restricted lateral maxillary growth. Because of the lack of bony union between the segments of the maxilla, they can be easily moved using a fixed appliance that is cemented directly to the teeth. This approach limits the degree of tooth tipping. When there is a severe anterior cross bite, expansion may be required using a roped palatal expansion type of appliance. For correction of a posterior crossbite, a quadhelix type of appliance is used. There is no midline suture to open in posterior region, this expansion can be performed more slowly. An alternative is an appliance that caps the teeth and has a screw anteriorly and a hinge posteriorly to achieve differential expansion of the arch. Speech and language All children with cleft palate requires such therapy to overcome the difficulties associated with trying to generate intraoral pressure and to overcome hyper or hyponasality. In the time between repairing the lip and palate, the child begins to develop oral movements before speech. This is pronounced between 12-18 months of age. Repair of the palate should not be delayed beyond this period because in the majority of cases acceptable speech can be achieved following surgery at this stage. 60
  • 61. Immediately after birth, the child will start to experiment with sound production. These early babblings are the beginning of speech. The speech therapist can advise the parents to encourage the child by reading to them and naming objects when moving around the house or in the street. All times it is essential that the child is allowed to practice speaking. The parents need to be counseled by a speech therapist so that they fitting palate in the childs mouth on a long term basis before palatal repair may have some beneficial effects in that it allows the tongue to function in an area approximating to the shape of the future mouth. Multispeciality team management White house had described, clinical team as a close cooperative democratic, multiprofessional lenion development to a common purpose the best treatment of fundamental needs of a patient. In order to improve function and appearance of various parts of face and oral cavity that are affected by this defect and associated psychological problems, different specialists must work in close collaboration to treat these children. The team include a plastic surgeon, a pedodontist an ENT surgeon an orthodontist, a speech therapist, oral surgeon and a prosthodontist. The role of individual specialists Primary function of plastic surgeon is to prepare clefts of lip and palate and to improve function of the soft palate and appearance of lip and 61
  • 62. nose. He may be required to deepen the labial sulcus and in bilateral cleft cases, reposition the premaxilla. Because of early treatment performed by plastic surgeon, parents become acquainted with him and he makes a useful team leader. The pediatric dentist is responsible for constructing feeding plates and advising parents on feeding techniques for the neonate. He provides restorative and preventive dentistry including dietary advice and topical fluoride applications during childhood. The ear, nose and throat surgeons performs aural examinations and assesses the hearing by using impedance and compliance tests. This is essential if the child is to communicate and learn at the normal rate. If necessary surgical procedures can be used to protect ears and maintain them in a healthy state, the role of ENT surgeon is limited after the age of 7 years because most of early hearing problems should have ceased. Hearing improves when the tensor palati muscles take over from levator palati muscle as the primary muscles responsible for opening the Eustachian tube. The orthodontist is usually responsible for performing presurgical dental orthopedics and when necessary early correction of malalignment in the incisions and correction of discrepancies in the labial segment relationship. Crowding and malalignments are corrected in the full 62
  • 63. permanent dentition and teeth are often moved orthodontically to move favourable position for the retention of a prosthesis. The speech therapist advises the parents about communication problems and demonstrates method of encouraging the child to speak properly. When necessary treatment is provided to overcome problems such as hypernasality, nasal fricatives defects articulation due to inability of patient to build up sufficient pressure. The social worker can help by giving support advice and looking after many siblings. Prosthodontist replaces, restores orofacial structures that may be congenitally missing or malformed non living materials are used to restore, enhance form and anatomy he fabricate appliance to rehabilitate mastication deglutition, speech and oral esthetics. They may incorporate a palatal expansion or an obturator to occlude any residual palatal defect. The psychologist assists by counseling both parents and child at different times to help them, minge and cope with their problems. The oral and maxillofacial surgeon evaluates all patients for facial form and function and jaw position many cleft patients have a skeletal malocclusion that can be treated by conventional orthodontics and requires surgical correction. The surgical placement of primary and secondary alveolar cleft bone graft is another important role of the surgeon. These 63
  • 64. grafts aid in dental rehabilitation of the patient. The grafted bone supports the teeth adjacent to the cleft site and provides bone through which teeth may except. Treatment schedule summary and the specialists treating a patient with a cleft lip and palate: Birth : Pedodontist may construct feeding plate and initiate pre-surgical dental orthopedics. Team members are introduced to parents and emphasize need for adequate weight gain so child attain necessary stage of development before lip surgery. 3 months of age- surgical repair of lip bilateral cleft lip cases may be repaired as a two stage procedure. 6 months – preventive dentistry begins. 15-18 months surgical repair of palate speech therapist assess. 2 years – plastic surgeon review surgical result orthodontist examines teeth and soft tissues, especially noting relationships of anterior segments and depth of labial sulcus in the cleft region. ENT surgeon assesses hearing and examines tympanic membrane speech therapist continue to monitor speech. Pedodontist stresses importance of good dental health. 3 years – dental check ups at 4 months intervals other team members review regress annually. 64
  • 65. 4 years – ENT surgeon usually performs aduiography and compliance tests and if necessary places grommet tubes in ear drums. Speech therapy starts for children with speech and hearing problems. 7 years – Early correction of malalignment of an anterior teeth and labial segment relationship. 9 years – surgical lip and nose revision to improve appearance. 12 years – orthodontists correct malocclusion and treats crowding and malalignments. Expansion of maxillary arch may be necessary teeth may be moved so as to create space for bone graft or for fixed removable prosthesis. 16 years – plastic surgery to improve the appearance of nose, the oral surgeon may form a Lefort 1 maxillary osteotomy to correct retrusive appearing maxillo, replacement of missing teeth with fixed bridge or removable prosthesis. 16 years onwards – prosthodontists and restorative dentist prove regular dental care. Dental management of the cleft patient The child patient with a cleft lip and palate offers challenges to the pediatric dentist. The children undergo surgical and dental procedures more frequently making them more anxious in the dental office. Change in the 65
  • 66. innervation of the maxilla and post surgical scar tissue make the local anesthesia difficult the anesthetic scar from missing teeth an incomplete alveolus also managed until the establishment of the permanent dentition. As part of a cleft palate team and pediatric dentists mission is to protect and supervise. The eruption of permanent teeth. The tasks that one can be expected to perform include the following: 1. Construction of infant feeding and orthopedic appliances. 2. Education of parents to the dental needs and care of this child. 3. Introduction of the child to environment. 4. Prevention of dental caries. 5. Guidance of the developing primary and secondary dentition. 6. Restorative dentistry for the primary and secondary dentition. 7. Management of problems unique to the cleft side. 8. Education of the child and parents to the maintenance of good oral hygiene. Establishing good communication between the child and the dentist is the first step in helping the child develop a positive attitude towards the dental office experience. Home rinses can be used for the child who wears an orthodontic and prosthodontic appliance. 66
  • 67. As the permanent teeth erupt, those teeth with a deep pit or fissure should be considered for occlusal sealants. Local Anesthesia The use of local anesthesia is an important factor in the successful development of pediatric dental care. The tissue over the injection site is implied with a dry gauze and a cotton tip applicator dipped in a topical anesthetic is applied to the injection site. 20% Benzocaine is the most common topical anesthesia used. It has an onset of action of 30 seconds. Oral surgery A common problem with infiltration anesthesia in the cleft population is the anesthetizing a tooth in or near the cleft area. Usually the tissue surrounding the tooth is tightly bound down and prevents infiltration of anesthetic for these teeth injection of the anesthetic into the periodontal space is recommended. A special syringe for this injection prevents breakage of the anesthesia catridges, due to the higher injection pressure is required. This technique is useful for the extraction of supernumerary maxillary teeth. Preventive and Restorative Dentistry As a rule initial visit to the dentist is made when the patient is between 2 and 3 years old. At this time deciduous dentition is developing and surgical closure of the clefts have been completed one of the first few 67
  • 68. visits child should be examined receive light prophylaxis, allowed to familiarize himself with dentist and his surroundings because of shape of surgically treated palate some difficulty may arise in taking radiographs. However it is essential that these diagnostic aids to be obtained approximately 4 years of age of four years for detection of caries and determination of supernumerary congenitally missing or malformed teeth. The caries rate is patients with cleft lip and palate is theoretically same as for any other patient. However, the use of intraoral appliances for long periods increases caries susceptibility to monitor the oral health care more frequent recalls at 3-4 month intervals are necessary professional applications to topical fluorides must be given regularly pit and fissure sealants must used on all permanent teeth and in the primary dentition in selected cases. Reinforcement of oral hygiene instructions and dietary advice must be rigorously checked and emphasized restorative care should be provided before carious lesions become extensive topical and local anesthesia should be used whenever indicated. Many of these children are mouth breathness because of deviation of nasal septum that is frequent by associated with facial oral clefts. Interference with their breathing during operative procedures may create a high degree of anxiety in these parents. The dentist can overcome this 68
  • 69. problem by reassuring the patient by limiting the use of cotton rolls or by the use of a rubber dam with large air holes. Early parental education and optimal systemic fluoride use can help to decrease this type of cones. The filled composite restorative resins are used primarily when esthetics are concern. In the cleft population this material is useful in restoring nursing bottle incisors and hypoplastic anterior teeth children with cleft palate have a needed to wear maxillary appliances such as an nance arch or space maintainer. These appliances are used to maintain space and replace missing teeth in the anterior region. If child is extremely incorporate and has poor oral hygiene, placing a chrome steel crown on the abutment tooth aids in the fitting of the retentive band. Pulp therapy The treatment of pulpally involved teeth is important to the cleft palate in order to maintain arch integrity and remove infection in the primary dentition treatment of pulpally involved teeth depends on the degree of inflammation present and the dental age of the tooth. Teeth that will soon exfoliate should be extracted rather than restored supernumerary teeth in the cleft area should be evaluated for function and esthetics with the addition of acrylic teeth. Removable Hawley’s type appliances are indicated for the replacement of anterior teeth if the child is cooperative. 69
  • 70. d) Child Abuse and Neglect Definition – Finding of inhibited, non accidental injuries Classified - Sexual - Physical - Emotional Sexual - In house abuse - Out house abuse In house – prevalent than out house- incist or molestation by slip fathers, friends of parents. 20% of sexually abused or molested during childhood. STD – and finding of unexplained injuries around genitalia. 15% abused are male and less than 10 year old. Emotional Physical abuse - History of alleged accident described by caretaker is not compatible with observed physical injury or pattern injuries. E.g. intra cranial hge. Contributing factor – delay in seeking medical care, history of poorly explained injuries and evidence of child neglect. Intracranial injuries – result of blows or kicks. 70
  • 71. Intercranial injuries – with no marks – vigorous shaking of child – whiplash injuries and pure take hge within brain. Retinal hemorrhage – funduscopic examination. Injuries – hge, bruises, black eyes, belt marks. 71