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Maximizing Performance and
 Efficiency with the SPEED
         Appliance
                 Philadelphia
                     2010
           Dr Sylvain Chamberland
      slideshare.net/sylvainchamberland
Fr.La. 0602                    68! weeks          Fr.La. 1003


                                                 69 weeks

                 An.Ju.Cl. 0807                                    An.Ju.Cl. 1208




                                                66" weeks
                 He.Pe. 0608                                       He.Pe. 0909

                    •     Before we can get there, we need to understand the SPEED basics

©Dr Sylvain Chamberland
The SPEED Appliance - 1980

       •        Invented: Dr. G.H. Hanson. Manufactured: Aerospace
                Manufacturer Strite Industries.

       •        Introduced to market in 1980 after 5 years of clinical
                development and 400 completed treatments.

       •        Highly flexible outer wall (Spring-Clip) capable of deflecting in all
                three spatial planes when contacted by the archwire.

       •        The first S-L design to provide the combined benefits of low
                friction, and the essential component of exceptional tooth
                control.

       •        The 1st commercially successful Self-Ligating appliance.



©Dr Sylvain Chamberland
SPEED’s Unique Mode of Action
   A New Paradigm - Exceptional Control
             Rotation                            Tip                                Torque




        •        SPEED’s Spring-Clip stores energy once deflected by the archwire.

        •        Gradual release of this stored energy ! corrective tooth movement in all three planes of space.

        •        Unprecedented level of control + Constant corrective action that will not degrade over time (unlike traditional
                 ligatures).

        •        Elimination of elastomeric ties reduces frictional resistance by as much as 90% (Berger AJODO, 1990).
©Dr Sylvain Chamberland
Modern Self-ligating Brackets
•   Lotus
    «Compare to Damon»
                               •   Carriere LX
    Ortho Technology




•   Damon MX                   •   Smartclip™
    Damon Q




                               •   Discovery™
•   Vision LP
    American Ortho
                                   Dentauraum
Modern Self-ligating Brackets
                     Passive in the leveling and alignment stages and active during major mechanics and finishing




•   In-Ovation R
                                                                            • SPEED
                                                                              -Point attachment
•   In-ovation C
    -twin design
                                                                                 -NiTi spring clip



•   Time 3
    American Ortho




•   Quick 2.0                                                               •    Nexus
    Forestadent                                                                  Ormco
Do We Need Fancy
           Advertisement ...

• To know that this....
  ...is not Self-Ligating Bracket
Damon Sequel
                     •    Large twin design, rigid clip, high profile
                     •    Several generations of the Damon bracket have already
                          been released
                     •    Clinical efficiency remains to be seen
                     •    Passive system: 4 solid walls
                     •    Only the name Damon has not changed for obvious
                          marketing issue


                                                                   3MX   Q        C
©Dr Sylvain Chamberland
Meanwhile


                     •    Several improvement, same bracket design




©Dr Sylvain Chamberland
SPEED System Timeline               TM



1970 - Concept
1970 - Prototype
1975 - Clinical Trial
1980 - AJO Report
1980 - Commercial Launch                                   20 years
1980 - SPEED Wire
1980 - F Hooks                                                        30 years
1983 - .022 Slot
1983 - Straightwire Rx
1983 - Buccal Molar Tubes
1983 – Archwire Gripping Hooks
1985 – Spring Protector Slot
1991 – Mushroom Hooks
1993 – Micro-Retentive Mesh
1995 – Supercable
1998 – Superelastic Spring Clip
1998 – Labial Window
1999 – Mx Incisor Torque Rails
1999 – Mx Incisor Mini Hooks
2000 – D Wire
2001 – Medium Torque Rx
2003 – ER Mx Molar Pads
2003 – Dual Geometry Wire
2007 – Zero Offset Md Incisor
2007 – Spring Protector Rails
2008 – SPEED Rhomboid

                                               600 cases


                                  1970                     1980                  1990   2000


©Dr Sylvain Chamberland
                                         Evolution of the SPEED Appliance
The SPEED modifications that
                   have had the greatest impact
                     on my clinical efficiency


©Dr Sylvain Chamberland
SPEED Appliance Development Timeline

                                  1998 - SPEED Labial Window!




                                      Labial Window                                                                                    Opening Technique


                          •   Short learning curve for staff

                          •   Small window in Spring-Clip ! accept the tip of a SPEED opening instrument or generic
                              scaler.

                          •   Dramatically increased the simplicity and speed of opening the appliance.

                          •   Archwire changes 4x faster than traditionally ligated appliances.*


©Dr Sylvain Chamberland            * Berger, J. and Byloff, F.: The Clinical Efficiency of Self Ligated Brackets, J. Clin. Orthod. 35:304-308, 2001
Super-elastic spring clip
                     •     Clip is 400% more elastic than
                           Stainless Steel
                          ! Resilient Spring Clip entraps the
                             wire

                     •     Spring Clip and archwire cooperate
                          ! Mutual action extends appliance
                             activation                         •   SPEED Super-Elastic eliminates the
                                                                    possibility of damage in all but the
                     •     Extremely light force delivery           most severe instances of abuse

                     •
©Dr Sylvain Chamberland
                           Greater precision in tooth control
SPEED Appliance Development Timeline

                            1999 - SPEED Full Slot! Design

                                                                               With

                                 •
                                                                          “Torquing Rails”
                                         “Torquing Rails”
                                                                      •
                                     •    Into upper anterior
                                          bracket body
                                     •    Enhance torque                      Without
                                          expression with full size       “Torquing Rails”

                                          archwires.




©Dr Sylvain Chamberland
SPEED Appliance Development Timeline
                          2007 - SPEED Spring Protector Rails!
                           Old Design                                                            Protector Rail Design
                            Central Incisor                                                           Central Incisor


                                               Illustration of SPEED Protector Rail brackets.
                                              Note incisal extensions of bracket body intended
                                               to inhibit transmission of occlusal forces to
                                                             SPEED Spring Clip.




                                                                                                                         SPEED
©Dr Sylvain Chamberland
SPEED Appliance Development Timeline

                                 2008-SPEED Rhomboid Design




                                •   Angulated for easy bracket placement
                                •   Precise Visual References
                                •   Narrow SE spring clip

©Dr Sylvain Chamberland
Introduction to SPEED
           Micro-Retentive                       SPEED
              Mesh™                        Mushroom Hook™
            Bonding Base                    for Elastomerics

               Fully
           Pre-Adjusted                      Bracket Body
                                           .018" or .022" Slot
                                           Escape-Proof
               Horizontal                   Spring Clip
                  .016
              Auxiliary Slot


©Dr Sylvain Chamberland
How to open Speed

                     •    From SPEED labial window




                     •    From the gingival


©Dr Sylvain Chamberland
How to close SPEED
                     •     Most of the time
                          ! Easily closed with gloved hands

                     •     Closing instrument
                          ! To engage large or heavy wire




©Dr Sylvain Chamberland
Closing SPEED




                     •    Wire not properly engaged

                     •    Pay attention!
                                  Use this



©Dr Sylvain Chamberland                      For heavy wire
How does the SPEED Appliance Work?

         SPEED envelope of action: PASSIVE ZONE




                                                      SPEED spring clip
  SPEED spring clip            SPEED spring clip
                                                   holding archwire in fully
activated by archwire           seating archwire
                                                       seated position

   ©Dr Sylvain Chamberland
How does the SPEED Appliance Work?

         SPEED envelope of action: ACTIVE ZONE




                                                      SPEED spring clip
  SPEED spring clip            SPEED spring clip
                                                   holding archwire in fully
activated by archwire           seating archwire
                                                       seated position

   ©Dr Sylvain Chamberland
How does the SPEED Appliance Differ?




                     •     At the very least, SPEED is
                          ! Much smaller

                          ! Point attachment



©Dr Sylvain Chamberland
How does the SPEED Appliance Differ?

                     •                          Choosing Between
                          Choosing between low friction or full control
                                                        Low Friction or Full
                                                             Control




                               Undersized wire                                        Full sized wire
                          Low friction - Poor control                          Full control - High friction


©Dr Sylvain Chamberland
How does the SPEED Appliance Differ?

              •           SPEED offers both low friction AND full control




                                   SPEED spring clip                  Archwire fully seated by
                                 Activated by archwire                   SPEED spring clip


©Dr Sylvain Chamberland
Better torque control
                     •     Active spring clip seat the wire into the slot

                     •     Passive clip can't seat the wire unless filling
                           the slot
                          ! Therefore, torque is dependant of the wire play and
                             the torsional moment (N-mm) created by its             Torque play: ± 5° for .020 x .025 wire in .022 slot

                             relationship to the bracket slot
                          ! Torsional moment is related to wire stiffness in
                             torsion " Bigger wire = Bigger moment
                          ! Use of pretorqued wire is an implicit admission that
                             the bracket can’t achieve torque                      Torque play: ± 10,5° for .019 x .025 wire in .022 slot

                                                                                      Koziowski, CI v 16, #1, 2008, p.25
©Dr Sylvain Chamberland
SPEED Paradigm
                  !So           many advantages!
                          "   No tie wing.
                          "   No ligature tie.
                          "   Miniaturized.
                          "   Better control in the 3 planes of space

                  !SPEED             was thinking of self-ligation 30 years ago
                  !SPEED             = Ahead of its time? Revolutionary?
                          !The    1st active SLB
©Dr Sylvain Chamberland
Why my patients prefer
                            SPEED brackets?
                          •   The smallest bracket on the market = SPEED




©Dr Sylvain Chamberland
Proposed Core Advantages of Self-Ligating brackets
       Eliasdes T., Pandis N., Self-Ligation in Orthodontics,2009, Wiley-Blackewell



                     •     Faster ligation = Less chair time
                          ! Save up to 10 minutes for replacement of a wire

                     •     Ligation stability - Secure archwire engagement

                     •     Low friction??
                          ! Ligature ties and elastomeric ties may cause friction

                          ! Resistance to slide if affected by bending and notching

                          ! Passive zone = low friction

                          ! Active zone = higher friction
©Dr Sylvain Chamberland
Proposed Core Advantages of Self-Ligating brackets

                     •     Practice builder
                          ! Promote the smallest SLB = SPEED

                     •     Assistance to good oral hygiene??

                     •     More comfortable treatment??
                          ! Initial .016 Supercable wire will more likely cause less pain
                               than a solid .016 niti wire
                          ! Differences in design of SLB have important consequences
                           !    SmartClip: marked increase discomfort when removing and engaging wire

                           !    Damon2: low discomfort initially, but higher discomfort at later stage
©Dr Sylvain Chamberland
Benefits of a Self-Ligating Bracket System for a
                                                Patient

                     •     Minimal initial discomfort
                          ! Light, continuous forces if used with Supercable™

                     •     Better oral hygiene, minimal tissue lacerations, if any

                     •     Shorter office visits !less chair time

                     •     Longer interval between visits




©Dr Sylvain Chamberland
Do you think self ligating brackets will replace
                          conventional brackets in the future?

                     •    "In the near future, yes, they will, to some degree, replace
                          conventional brackets." ... "I am extremely surprised to see
                          that ligation brackets are still so much in use. Clinical
                          advantages of the self-ligating brackets are not limited to
                          saving chairside time; they also produce less wire-to-bracket
                          friction, require less stock in the practice and if used
                          efficiently they may increased the practice production by
                          15% to 30%."

                                                         VIP interview: Dr Ali Darendeliler, WJO v10, #1, 2009
©Dr Sylvain Chamberland
Self-ligating bracket claims
                                                                    Ask us, AJODO 2010, 138, #2, 128-131




                     •        SLB do not grow buccal alveolar bone
                          !    Cevidanes L, Treccani M, Myrda A, Melsen B. Transversal expansion and SLB brackets: A CBCT study

                          !    Paventy A. Facial alveolar bone evaluation with CBCT in non extraction treatment using the Damon system: a prospective
                               clinical trial [thesis] Norman, Okla: U of Oklahoma; 2008



                     •        Lateral expansion of the dental arch by SLB
                          ! Can not be compared to RME

                          ! Not more stable



©Dr Sylvain Chamberland
Self-ligating bracket claims
                                                    Ask us, AJODO 2010, 138, #2, 128-131




                     •     SLB more efficient and more effective than conventional
                           edgwise bracket systems in treating malocclusion
                          ! Current evidence does not indicate differences for treatment time, rate
                             of alignment, rate of space closure, final arch dimension or occlusal
                             outcomes
                          ! Neither for : reduced friction between archwire and bracket, reduced
                             clinical forces, patient pain, more hygienic



©Dr Sylvain Chamberland
Self-ligating bracket claims
                                                  Ask us, AJODO 2010, 138, #2, 128-131




                     •     2 assertions supported
                          ! Reduced chair time

                          ! Control of mandibular incisor inclination




©Dr Sylvain Chamberland
Neat benefits of the SPEED Bracket   2




                  •Auxiliary archwire slot
                          •To consolidate a segment
                          •For segmental mechanics
                           •Ligature wire
                           •016 NiTi, Supercable™, SS
                           •.016 x .016 S
                           •.017 NiTi auxiliary spring

©Dr Sylvain Chamberland
Unique benefits of the SPEED Bracket

                  •Escape-proof spring clip (no ligation decay)



                  •Increased inter-bracket distance
                                                        Cl.Tur. 0209




                          • More springiness

©Dr Sylvain Chamberland
Easier finishing than ceramic
                                     bracket
                 •        Control 1st order rotation
                 •        Control 3rd order


                                May 02/03           May 02/03   Aug. 02/03




               !Precise          Bracket position
©Dr Sylvain Chamberland
What does the scientific literature
                  have to say about the benefits of
                               SPEED?


©Dr Sylvain Chamberland
CLINICAL EFFICIENCY
Do We Need Fancy Study
                                  to...


                     • Know that wire ligature takes
                          time to do and remove




©Dr Sylvain Chamberland
Do We Need Fancy Study
                                  to...

                     • Know that elastomeric ligature
                          takes less time to place and
                          remove than wire ligature but...
                     • ...most likely more than open
                          and close SLB



©Dr Sylvain Chamberland
The Clinical Efficiency of Self-Ligating Brackets
                                                 Bimaxillary ligation time (min)
                                              (Second bicuspid - Second bicuspid)

                          Ligation Method       Remove / Open            Retie / Close   Total Time



                             Steel Tie              2.83                     9.53          12.36



                          Elastomeric Ring          1.05                     2.53           3.58



                              Damon I               0.88                     0.88           1.76



                             TwinLock               0.61                     0.56           1.17



                               Time                 0.80                     0.71           1.51



                             SPEED                  0.55                    0.30           0.85


                                             Source: JCO May 2001 - Berger, Byloff
©Dr Sylvain Chamberland
Bond Strength
Bond Strength - Lab
                          The influence of orthodontic bracket base design on shear bond strength

               Study Findings - Bond strength after 24 hours
                                                                                             •   Despite it’s smaller base size, the
                                                                                                 SPEED appliance demonstrated
                                                                                                 statistically significant superior
                                                                                                 Shear Bond Strength than 4 of the
              10,0
                           9.73
                                                                                                 5 brackets tested.

                                                                                             •
                                    8.05
                                                                                                 No statistically significant
                7,5
                                                                                                 difference in SBS between the
 Mean SBS
  (MPa)
                                              5.25
                                                               4.47
                                                                                                 SPEED appliance and the Time
                5,0                                                                              bracket.

                2,5
                                                                             2.20
                                                                                             •   Cleaning, sandblasting, and
                                                                                                 rebonding the SPEED appliance
                   0
                                                                                                 did not result in a statistically
                          Time    SPEED     Ormco             GAC         American               significant reduction in SBS
                                             Bracket Type


                                                      Source: AJODO - Volume 124, Number 1
©Dr Sylvain Chamberland
Control - Spring Clip Resiliency

                          • Niti spring clip do not loose stiffness
                                                                      •        Results
                                                                           !    No difference was found between “as
                                                                                received” and “used” brackets in the
                                                                                SPEED Group.

                                                                           !    The In Ovation group showed
                                                                                extensive “relaxation” (50% decrease
                                                                                in stiffness) after use.

                                                                           !    Neither group showed signs of
                                                                                permanent deformation.

                              Changes in the stiffness of the ligating mechanism in
                                    retrieved active self-ligating brackets
©Dr Sylvain Chamberland                           AJODO 2007; 132: 834-7
Aging of the Spring Clip
                     •     Performance and aging depend on the alloy composition of
                           the Spring Clip

                     •     Clinical relevance
                          ! Inability of the relaxed clip to apply forces due to aging

                          ! Inadequate engagement of the wire into the bracket slot may arise in the
                                last stages of treatment when rectangular wires are inserted
                            !     Undesirerable outcome on associated mechanotherapeutical schemes




©Dr Sylvain Chamberland
LOW FRICTION
 Will be discussed later
HYGIENE
Plaque retention by self-ligating vs elastomeric orthodontic
                  brackets: Quantitative comparison of oral bacteria and detection
                        with adenosine triphosphate-driven bioluminescence
                                        (Am J Orthod Dentofacial Orthop 2009;135:426.e1–426.e9)



                     •        Methods: Patients (ages, 11-17 years) were bonded with SL and E brackets in 14
                              maxillary and 12 mandibular arches by using a split-mouth design.

                          !     Recall visits were at 1 and 5 weeks after bonding.

                     •        Editor's summary:
                          !     The findings indicate that self-ligating appliances might promote reduced retention of
                                bacteria, including streptococci, than appliances with elastomeric ligation.

                          !     Of course, you must assume that this advantage would be lost by placing
                                elastomeres over the self-ligating brackets.



©Dr Sylvain Chamberland
Do We Need Fancy Study
                                  to...

                     • Know that plaque accumulation
                          and gum swelling are related
                          to...poor oral hygiene




©Dr Sylvain Chamberland
Do We Need Fancy Study
                                  to...

                     • Know that poor oral hygiene is
                          independent of bracket systems
                     • It's a behavioral issue

©Dr Sylvain Chamberland
Do We Need Fancy Study
                                      to...
                     • Know that poor oral hygiene
                              may lead to white spot lesion
                     • WSL is not related to bracket
                              systems
                     • One should focus on reducing
                              potential damage
                          !    Fluoride rinses, varnishes, sealants & frequent
                               cleanings



©Dr Sylvain Chamberland
HYGIENE
                  •       What is the difference between these 2 patients?




          This patient brushes his teeth                     This patient doesn’t!



©Dr Sylvain Chamberland

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1-0_Benefits-SPEED_Appliance_sylvainchamberland_orthodontiste_quebec

  • 1. Maximizing Performance and Efficiency with the SPEED Appliance Philadelphia 2010 Dr Sylvain Chamberland slideshare.net/sylvainchamberland
  • 2. Fr.La. 0602 68! weeks Fr.La. 1003 69 weeks An.Ju.Cl. 0807 An.Ju.Cl. 1208 66" weeks He.Pe. 0608 He.Pe. 0909 • Before we can get there, we need to understand the SPEED basics ©Dr Sylvain Chamberland
  • 3. The SPEED Appliance - 1980 • Invented: Dr. G.H. Hanson. Manufactured: Aerospace Manufacturer Strite Industries. • Introduced to market in 1980 after 5 years of clinical development and 400 completed treatments. • Highly flexible outer wall (Spring-Clip) capable of deflecting in all three spatial planes when contacted by the archwire. • The first S-L design to provide the combined benefits of low friction, and the essential component of exceptional tooth control. • The 1st commercially successful Self-Ligating appliance. ©Dr Sylvain Chamberland
  • 4. SPEED’s Unique Mode of Action A New Paradigm - Exceptional Control Rotation Tip Torque • SPEED’s Spring-Clip stores energy once deflected by the archwire. • Gradual release of this stored energy ! corrective tooth movement in all three planes of space. • Unprecedented level of control + Constant corrective action that will not degrade over time (unlike traditional ligatures). • Elimination of elastomeric ties reduces frictional resistance by as much as 90% (Berger AJODO, 1990). ©Dr Sylvain Chamberland
  • 5. Modern Self-ligating Brackets • Lotus «Compare to Damon» • Carriere LX Ortho Technology • Damon MX • Smartclip™ Damon Q • Discovery™ • Vision LP American Ortho Dentauraum
  • 6. Modern Self-ligating Brackets Passive in the leveling and alignment stages and active during major mechanics and finishing • In-Ovation R • SPEED -Point attachment • In-ovation C -twin design -NiTi spring clip • Time 3 American Ortho • Quick 2.0 • Nexus Forestadent Ormco
  • 7. Do We Need Fancy Advertisement ... • To know that this.... ...is not Self-Ligating Bracket
  • 8. Damon Sequel • Large twin design, rigid clip, high profile • Several generations of the Damon bracket have already been released • Clinical efficiency remains to be seen • Passive system: 4 solid walls • Only the name Damon has not changed for obvious marketing issue 3MX Q C ©Dr Sylvain Chamberland
  • 9. Meanwhile • Several improvement, same bracket design ©Dr Sylvain Chamberland
  • 10. SPEED System Timeline TM 1970 - Concept 1970 - Prototype 1975 - Clinical Trial 1980 - AJO Report 1980 - Commercial Launch 20 years 1980 - SPEED Wire 1980 - F Hooks 30 years 1983 - .022 Slot 1983 - Straightwire Rx 1983 - Buccal Molar Tubes 1983 – Archwire Gripping Hooks 1985 – Spring Protector Slot 1991 – Mushroom Hooks 1993 – Micro-Retentive Mesh 1995 – Supercable 1998 – Superelastic Spring Clip 1998 – Labial Window 1999 – Mx Incisor Torque Rails 1999 – Mx Incisor Mini Hooks 2000 – D Wire 2001 – Medium Torque Rx 2003 – ER Mx Molar Pads 2003 – Dual Geometry Wire 2007 – Zero Offset Md Incisor 2007 – Spring Protector Rails 2008 – SPEED Rhomboid 600 cases 1970 1980 1990 2000 ©Dr Sylvain Chamberland Evolution of the SPEED Appliance
  • 11. The SPEED modifications that have had the greatest impact on my clinical efficiency ©Dr Sylvain Chamberland
  • 12. SPEED Appliance Development Timeline 1998 - SPEED Labial Window! Labial Window Opening Technique • Short learning curve for staff • Small window in Spring-Clip ! accept the tip of a SPEED opening instrument or generic scaler. • Dramatically increased the simplicity and speed of opening the appliance. • Archwire changes 4x faster than traditionally ligated appliances.* ©Dr Sylvain Chamberland * Berger, J. and Byloff, F.: The Clinical Efficiency of Self Ligated Brackets, J. Clin. Orthod. 35:304-308, 2001
  • 13. Super-elastic spring clip • Clip is 400% more elastic than Stainless Steel ! Resilient Spring Clip entraps the wire • Spring Clip and archwire cooperate ! Mutual action extends appliance activation • SPEED Super-Elastic eliminates the possibility of damage in all but the • Extremely light force delivery most severe instances of abuse • ©Dr Sylvain Chamberland Greater precision in tooth control
  • 14. SPEED Appliance Development Timeline 1999 - SPEED Full Slot! Design With • “Torquing Rails” “Torquing Rails” • • Into upper anterior bracket body • Enhance torque Without expression with full size “Torquing Rails” archwires. ©Dr Sylvain Chamberland
  • 15. SPEED Appliance Development Timeline 2007 - SPEED Spring Protector Rails! Old Design Protector Rail Design Central Incisor Central Incisor Illustration of SPEED Protector Rail brackets. Note incisal extensions of bracket body intended to inhibit transmission of occlusal forces to SPEED Spring Clip. SPEED ©Dr Sylvain Chamberland
  • 16. SPEED Appliance Development Timeline 2008-SPEED Rhomboid Design • Angulated for easy bracket placement • Precise Visual References • Narrow SE spring clip ©Dr Sylvain Chamberland
  • 17. Introduction to SPEED Micro-Retentive SPEED Mesh™ Mushroom Hook™ Bonding Base for Elastomerics Fully Pre-Adjusted Bracket Body .018" or .022" Slot Escape-Proof Horizontal Spring Clip .016 Auxiliary Slot ©Dr Sylvain Chamberland
  • 18. How to open Speed • From SPEED labial window • From the gingival ©Dr Sylvain Chamberland
  • 19. How to close SPEED • Most of the time ! Easily closed with gloved hands • Closing instrument ! To engage large or heavy wire ©Dr Sylvain Chamberland
  • 20. Closing SPEED • Wire not properly engaged • Pay attention! Use this ©Dr Sylvain Chamberland For heavy wire
  • 21. How does the SPEED Appliance Work? SPEED envelope of action: PASSIVE ZONE SPEED spring clip SPEED spring clip SPEED spring clip holding archwire in fully activated by archwire seating archwire seated position ©Dr Sylvain Chamberland
  • 22. How does the SPEED Appliance Work? SPEED envelope of action: ACTIVE ZONE SPEED spring clip SPEED spring clip SPEED spring clip holding archwire in fully activated by archwire seating archwire seated position ©Dr Sylvain Chamberland
  • 23. How does the SPEED Appliance Differ? • At the very least, SPEED is ! Much smaller ! Point attachment ©Dr Sylvain Chamberland
  • 24. How does the SPEED Appliance Differ? • Choosing Between Choosing between low friction or full control Low Friction or Full Control Undersized wire Full sized wire Low friction - Poor control Full control - High friction ©Dr Sylvain Chamberland
  • 25. How does the SPEED Appliance Differ? • SPEED offers both low friction AND full control SPEED spring clip Archwire fully seated by Activated by archwire SPEED spring clip ©Dr Sylvain Chamberland
  • 26. Better torque control • Active spring clip seat the wire into the slot • Passive clip can't seat the wire unless filling the slot ! Therefore, torque is dependant of the wire play and the torsional moment (N-mm) created by its Torque play: ± 5° for .020 x .025 wire in .022 slot relationship to the bracket slot ! Torsional moment is related to wire stiffness in torsion " Bigger wire = Bigger moment ! Use of pretorqued wire is an implicit admission that the bracket can’t achieve torque Torque play: ± 10,5° for .019 x .025 wire in .022 slot Koziowski, CI v 16, #1, 2008, p.25 ©Dr Sylvain Chamberland
  • 27. SPEED Paradigm !So many advantages! " No tie wing. " No ligature tie. " Miniaturized. " Better control in the 3 planes of space !SPEED was thinking of self-ligation 30 years ago !SPEED = Ahead of its time? Revolutionary? !The 1st active SLB ©Dr Sylvain Chamberland
  • 28. Why my patients prefer SPEED brackets? • The smallest bracket on the market = SPEED ©Dr Sylvain Chamberland
  • 29. Proposed Core Advantages of Self-Ligating brackets Eliasdes T., Pandis N., Self-Ligation in Orthodontics,2009, Wiley-Blackewell • Faster ligation = Less chair time ! Save up to 10 minutes for replacement of a wire • Ligation stability - Secure archwire engagement • Low friction?? ! Ligature ties and elastomeric ties may cause friction ! Resistance to slide if affected by bending and notching ! Passive zone = low friction ! Active zone = higher friction ©Dr Sylvain Chamberland
  • 30. Proposed Core Advantages of Self-Ligating brackets • Practice builder ! Promote the smallest SLB = SPEED • Assistance to good oral hygiene?? • More comfortable treatment?? ! Initial .016 Supercable wire will more likely cause less pain than a solid .016 niti wire ! Differences in design of SLB have important consequences ! SmartClip: marked increase discomfort when removing and engaging wire ! Damon2: low discomfort initially, but higher discomfort at later stage ©Dr Sylvain Chamberland
  • 31. Benefits of a Self-Ligating Bracket System for a Patient • Minimal initial discomfort ! Light, continuous forces if used with Supercable™ • Better oral hygiene, minimal tissue lacerations, if any • Shorter office visits !less chair time • Longer interval between visits ©Dr Sylvain Chamberland
  • 32. Do you think self ligating brackets will replace conventional brackets in the future? • "In the near future, yes, they will, to some degree, replace conventional brackets." ... "I am extremely surprised to see that ligation brackets are still so much in use. Clinical advantages of the self-ligating brackets are not limited to saving chairside time; they also produce less wire-to-bracket friction, require less stock in the practice and if used efficiently they may increased the practice production by 15% to 30%." VIP interview: Dr Ali Darendeliler, WJO v10, #1, 2009 ©Dr Sylvain Chamberland
  • 33. Self-ligating bracket claims Ask us, AJODO 2010, 138, #2, 128-131 • SLB do not grow buccal alveolar bone ! Cevidanes L, Treccani M, Myrda A, Melsen B. Transversal expansion and SLB brackets: A CBCT study ! Paventy A. Facial alveolar bone evaluation with CBCT in non extraction treatment using the Damon system: a prospective clinical trial [thesis] Norman, Okla: U of Oklahoma; 2008 • Lateral expansion of the dental arch by SLB ! Can not be compared to RME ! Not more stable ©Dr Sylvain Chamberland
  • 34. Self-ligating bracket claims Ask us, AJODO 2010, 138, #2, 128-131 • SLB more efficient and more effective than conventional edgwise bracket systems in treating malocclusion ! Current evidence does not indicate differences for treatment time, rate of alignment, rate of space closure, final arch dimension or occlusal outcomes ! Neither for : reduced friction between archwire and bracket, reduced clinical forces, patient pain, more hygienic ©Dr Sylvain Chamberland
  • 35. Self-ligating bracket claims Ask us, AJODO 2010, 138, #2, 128-131 • 2 assertions supported ! Reduced chair time ! Control of mandibular incisor inclination ©Dr Sylvain Chamberland
  • 36. Neat benefits of the SPEED Bracket 2 •Auxiliary archwire slot •To consolidate a segment •For segmental mechanics •Ligature wire •016 NiTi, Supercable™, SS •.016 x .016 S •.017 NiTi auxiliary spring ©Dr Sylvain Chamberland
  • 37. Unique benefits of the SPEED Bracket •Escape-proof spring clip (no ligation decay) •Increased inter-bracket distance Cl.Tur. 0209 • More springiness ©Dr Sylvain Chamberland
  • 38. Easier finishing than ceramic bracket • Control 1st order rotation • Control 3rd order May 02/03 May 02/03 Aug. 02/03 !Precise Bracket position ©Dr Sylvain Chamberland
  • 39. What does the scientific literature have to say about the benefits of SPEED? ©Dr Sylvain Chamberland
  • 41. Do We Need Fancy Study to... • Know that wire ligature takes time to do and remove ©Dr Sylvain Chamberland
  • 42. Do We Need Fancy Study to... • Know that elastomeric ligature takes less time to place and remove than wire ligature but... • ...most likely more than open and close SLB ©Dr Sylvain Chamberland
  • 43. The Clinical Efficiency of Self-Ligating Brackets Bimaxillary ligation time (min) (Second bicuspid - Second bicuspid) Ligation Method Remove / Open Retie / Close Total Time Steel Tie 2.83 9.53 12.36 Elastomeric Ring 1.05 2.53 3.58 Damon I 0.88 0.88 1.76 TwinLock 0.61 0.56 1.17 Time 0.80 0.71 1.51 SPEED 0.55 0.30 0.85 Source: JCO May 2001 - Berger, Byloff ©Dr Sylvain Chamberland
  • 45. Bond Strength - Lab The influence of orthodontic bracket base design on shear bond strength Study Findings - Bond strength after 24 hours • Despite it’s smaller base size, the SPEED appliance demonstrated statistically significant superior Shear Bond Strength than 4 of the 10,0 9.73 5 brackets tested. • 8.05 No statistically significant 7,5 difference in SBS between the Mean SBS (MPa) 5.25 4.47 SPEED appliance and the Time 5,0 bracket. 2,5 2.20 • Cleaning, sandblasting, and rebonding the SPEED appliance 0 did not result in a statistically Time SPEED Ormco GAC American significant reduction in SBS Bracket Type Source: AJODO - Volume 124, Number 1 ©Dr Sylvain Chamberland
  • 46. Control - Spring Clip Resiliency • Niti spring clip do not loose stiffness • Results ! No difference was found between “as received” and “used” brackets in the SPEED Group. ! The In Ovation group showed extensive “relaxation” (50% decrease in stiffness) after use. ! Neither group showed signs of permanent deformation. Changes in the stiffness of the ligating mechanism in retrieved active self-ligating brackets ©Dr Sylvain Chamberland AJODO 2007; 132: 834-7
  • 47. Aging of the Spring Clip • Performance and aging depend on the alloy composition of the Spring Clip • Clinical relevance ! Inability of the relaxed clip to apply forces due to aging ! Inadequate engagement of the wire into the bracket slot may arise in the last stages of treatment when rectangular wires are inserted ! Undesirerable outcome on associated mechanotherapeutical schemes ©Dr Sylvain Chamberland
  • 48. LOW FRICTION Will be discussed later
  • 50. Plaque retention by self-ligating vs elastomeric orthodontic brackets: Quantitative comparison of oral bacteria and detection with adenosine triphosphate-driven bioluminescence (Am J Orthod Dentofacial Orthop 2009;135:426.e1–426.e9) • Methods: Patients (ages, 11-17 years) were bonded with SL and E brackets in 14 maxillary and 12 mandibular arches by using a split-mouth design. ! Recall visits were at 1 and 5 weeks after bonding. • Editor's summary: ! The findings indicate that self-ligating appliances might promote reduced retention of bacteria, including streptococci, than appliances with elastomeric ligation. ! Of course, you must assume that this advantage would be lost by placing elastomeres over the self-ligating brackets. ©Dr Sylvain Chamberland
  • 51. Do We Need Fancy Study to... • Know that plaque accumulation and gum swelling are related to...poor oral hygiene ©Dr Sylvain Chamberland
  • 52. Do We Need Fancy Study to... • Know that poor oral hygiene is independent of bracket systems • It's a behavioral issue ©Dr Sylvain Chamberland
  • 53. Do We Need Fancy Study to... • Know that poor oral hygiene may lead to white spot lesion • WSL is not related to bracket systems • One should focus on reducing potential damage ! Fluoride rinses, varnishes, sealants & frequent cleanings ©Dr Sylvain Chamberland
  • 54. HYGIENE • What is the difference between these 2 patients? This patient brushes his teeth This patient doesn’t! ©Dr Sylvain Chamberland