The document discusses different types of major connectors that can be used in maxillary partial dentures. It describes several major connector designs including the single palatal strap, double palatal strap, complete palatal coverage, single posterior palatal bar, and double palatal bar. For each design, it provides information on indications, characteristics, advantages, and disadvantages. The major connectors are important components in fabricating partial dentures.
3. DIAGNOSIS AND TREATMENT PLANNING
STEPS IN FABRICATION OF PARTIAL DENTURE
MAJOR CONNECTORS
MANDIBULAR MAJOR CONNECTORS
MAXILLARY MAJOR CONNECTORS
MINOR CONNECTORS
RESTS AND REST SEATS
DIRECT RETAINERS
INDIRECT RETAINERS
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5. MAXILLARY MAJOR CONNECTORS
SINGLE PALATAL STRAP MAJOR CONNECTOR
DOUBLE PALATAL STRAP MAJOR CONNECTOR
SINGLE BRAOD PALATAL STRAP MAJOR
CONNECTOR
COMPLETE PALATAL COVERAGE MAJOR
CONNECTOR
SINGLE POSTERIOR PALATAL BAR
DOUBLE PALATAL BAR MAJOR CONNECTOR
HORSE SHOE SHAPED MAJOR CONNECTOR
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7. INDICATIONS
-BILATERAL EDENTULOUS SPACES OF SHORT SPANS
- KENNEDY”S CLASS III MOD 1
CONTRAINDICATIONS
- DISTAL EXTENSION CASES BECAUSE OF TORGUE
FORCES
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8. CHARACTERISTIC
FEATURES
- ANATOMICAL REPLICA FORM
- ANTERIOR BORDER
- FOLLOW THE VALLEY BETWEEN
RUGAE
- POSTERIOR BORDER
- RIGHT ANGLE TO THE MEDIAN
SUTURE LINE
WIDTH
- APPROXIMATELY 8mm
- COMBINED WIDTH OF
2nd
PREMOLAR AND FIRST MOLAR
- CONFINED WITHIN RESTS
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10. ADVANTAGES
LOCATED IN 3 PLANES
SINCE RESISTS BENDING OR
TWISTING FORCES
CREATES RIGIDITY WITH LESS BULKY METAL
COMFORT TO THE PATIENT SINCE IT IS THIN
DIS ADVANTAGES
PATIENT MAY COMPLAIN EXCESSIVE
PALATAL COVERAGE
SOFT TISSUE REACTION- PAPILLARY HYPERPLASIA
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11. BLOCKOUT
SLIGHT RELIEF IN RAPHE REGION
BEEDING
PROVIDES
BETTER SEAL
BETTER STABILITY
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13. INDICATIONS
- CLASS I SITUATION
- V OR U SHAPED PALATES
- STRONG ABUTMENTS
CONTRA
INDICATIONS
PALATAL TORI
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14. CHARACTERISTIC FEATURES
- ANATOMICAL REPLICA FORM
- ANTERIOR BORDER
- FOLLOW THE VALLEY BETWEEN RUGAE
- RIGHT ANGLE TO MEDIAN SUTURE LINE
- POSTERIOR BORDER
- JUNCTION OF HARD AND SOFT PALATE
- EXTENDS TIL HAMULAR NOTCHES
- RIGHT ANGLE TO MEDIAN SUTURE LINE
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15. ADVANTAGES
- RIGID
- GOOD SUPPORT FROM PALATE
- L BEAM EFFECT
DISADVANTAGES
- INERFERENCES WITH PHONETICS
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16. BLOCKOUT
SLIGHT RELIEF IN MEDIAN RAPHE REGION
BEADING
PROVIDES BETTER SEAL AND SUPPORT
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18. INDICATIONS
- KENNEDY’S CLASS I & CLASS II SITUATION
- LONG SPAN IN CLASS II Mod I
- CLASS IV
- INOPERABLE PALATAL TORI
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19. CHARACTERISTIC
FEATURES
- PARALLELOGRAM SHAPE WITH
CENTRAL OPENING
- NARROW PALATAL STRAPS OF WIDTH 8-10 mm
- LATERAL PALATAL STRAPS OF WIDTH 7-9 mm
- 6mm AWAY FROM GINGIVAL CREVICES
- IT HAS TWO HORIZONTAL PALATAL STRAPS
- ANTERIOR STRAP
- POSTERIOR STRAP
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21. ANTERIOR PALATAL STRAP
WIDTH – 8-10 mm
LOCATION
ANTERIOR BORDER
- SHOULD NOT BE PLACED ANTERIORLY
THAN ANTERIOR RESTS
- FOLLOWS VALLEYS OF RUGAE
POSTERIOR PALATAL STRAP
POSTERIOR BORDER
LOCATED AT JUNCTION OF HARD AND
SOFT PALATE AND HAMULAR NOTCH
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22. ADVANTAGES
- RIGIDITY
- L BEAM EFFECT
- STABILITY
BLOCKOUT
- SLIGHT RELIEF IN MEDIAN PALATINE RAPHE
BEADING
- PROVIDES BETTER SEAL
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24. INDICATIONS
- WHEN FEW ANTERIOR TEETH ARE REMAINING
- CLASS II WITH LARGE POSTERIOR MODIFICATION
- CLASS II WITH MISSING ANTERIOR TEETH
- CLASS I ARCH WITH 1-4 PREMOLARS AND SOME OR
ALL ANTERIOR REMAINING
CONTRA INDICATIONS
- PRESENCE OF PEDUNCULATED PALATAL TORI
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25. CHARACTERISTIC
FEATURES
- ANATOMICAL REPLICA FORM FOR FULL PALATAL
METAL AND POSITIVE REST SEATS
- ACRYLIC EXTENSIONS POSTRIORLY
- CONTACTS WITH ALL REMAINING TEETH
- POSTERIOR BORDER TERMINATES AT
JUNCTION OF HARD AND SOFT PALATE
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26. TYPES
ALL ACRYLIC RESIN
COMBINATION OF METAL AND ACRYLIC RESIN
ALL CAST METAL
RELIEF
SMALL EXOSTOSIS
BEADING
BEADING PROVIDES BETTER SEAL
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28. - NARROW HALF OVAL MAJOR
CONNECTOR WITH THICKEST
PORTION AT CENTRE
- BAR SHOULD BE GENTLY CURVED
AND SHOULDNOT FORM A SHARP ANGLE
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30. ADVANTAGES
IT IS ONLY USED AS A INTERIM
PARTIAL DENTURE
DISADVANTAGES
- DIFFICULT TO ADJUST FOR THE PATIENT
- LACK OF RIGIDITY
- IT SHOULD NOT BE USED WHEN
ANTERIOR TEETH ARE MISSING
- CANT BE USED IN DISTAL EXTENSION CASES
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32. - IT CAN BE USED IN TOOTH SUPPORTED
PARTIAL DENTURES
- IT CAN BE USED WHEN ADEQUATE
PERIODONTAL SUPPORT
- ANTERIOR BAR SHOULD BE SITUATED
IN BETWEEN RUGAE
- TWO BARS ARE JOINED BY LONGITUDINAL ELEMENTS
- GIVES L BEAM EFFECT
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34. ADVANTAGES
- RIGIDITY
- LARGE PALATAL TORI
DISADVANTAGES
- LACK OF RIGIDITY
- LITTLE SUPPORT IS POSSIBLE
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35. U SHAPED PALATAL MAJOR
CONNECTOR OR CLOSED HORSE SHOE
SHAPED MAJOR CONNECTOR
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36. INDICATIONS
- INOPERABLE PALATAL TORI
- CLASS IV SITUATION – RARELY INDICATED
DIS ADVANTAGES
- LACK OF RIGIDITY
- RARELY INDICATED DUE TO LACK OF SUPPORT
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37. CHARACTERISTIC FEATURES
- ANTERIOR BORDER MUST BE SUPPORTED BY
INDIRECT RETAINER
- ANTERIOR BORDER KEPT 6mm AWAY FROM
ADJACENT TEETH
- IF THE ANTERIOR BORDER CONTACTING
THE REMAINING TEETH, MAJOR CONNECTOR
MUST BE SUPPORTED BY RESTS
RELIEF
NOT NECESSARY
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39. If we
really
want to
love we
must
learn
how to
forgive.
–Mother
Teresa.
THANK YOU….
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