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1. BITE JUMPERS-
ORTHODONTIC POTPOURRI
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3. SUPERIMPOSITION
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4. ACKNOWLEDGEMENTS
• Dr.E. Munirathnam Naidu
Principal
• Dr.P. Jayakumar
Professor & H.O.D
• Teaching Staff
Department of Orthodontics
Meenakshi Ammal Dental College
Chennai
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5. Catch them young !!!!!!
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6. BITE JUMPERS
- AN INTRO
• Bite jumpers ideally “jump the bite”
• “Jumping the bite” means change in Sagittal inter-
arch relationship due to anterior displacement of the
mandible.
• Mandibular position changes from retruded position
to a favourable position.
• Used in Class II div. 1
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7. BITE JUMPERS
REMOVABLE FIXED
• Bite Plate Herbst
• Activator Jasper jumper
• Bionator MARS appliance
• Frankel MPA 1,2&3
• Twin Block ABC
• MGA Churro jumper
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8. Case Report -1
Patient A Age: 8yrs Sex : Female
Diagnosis : Dento-alveolar class II div.1
malocclusion on a class II
Skeletal base with an average
growth pattern.
Treatment Plan : Phase I - Balter’s Bionator
Phase II- Fixed appliance
for final finishingwww.indiandentalacademy.com

9. BIONATOR
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10. Patient with appliance
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11. Extra -oral view
Pre-operative Postoperative
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12. Extra-oral Profile
Pre-operative Post-operative
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13. Intra-oral View
Pre-operative Post-operative
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14. CEPHALOMETRIC ANALYSIS
STEINERS/ BJORKS
Pre-operative Post-operative
SNA 750
740
SNB 690
720
GoGn.SN 320
340
| to NA 380
350
to NB 260
270
Sum of Angles 3960
3980
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15. CEPHALOMETRIC ANALYSIS
RICKETTS/ TWEEDS
Pre-operative Post-operative
Facial Angle 850
880
Facial Axis 840
830
Upper Lip.E-Plane +1mm 0mm
Lower Lip.E-Plane -2mm 0mm
FMA 250
270
IMPA 920
940
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16. Case Report II
Patient B Age : 8yrs Sex: Female
Diagnosis : Dento - alveolar class II div.1
Malocclusion on a class II
Skeletal base with a low FMA.
Treatment plan: Phase I - FR II
Maintenance phase- Bionator
Phase II - Fixed appliance for
final detailing.
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17. Extra-oral view
Pre-operative
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18. FRANKEL FUNCTIONAL
REGULATOR
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19. Extra-oral Profile
Post-operative
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20. Intra-oral View
Pre-operative Post-operative
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21. SUPERIMPOSITION
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22. CEPHALOMETRIC ANALYSIS
STEINERS/ BJORKS
Pre-operative Post-operative
SNA 800
790
SNB 740
760
GoGn.SN 220
250
|_ to NA 310
290
to NB 280
280
Sum of Angles 3860
3900
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23. CEPHALOMETRIC ANALYSIS
RICKETTS/ TWEEDS
Pre-operative Post-operative
Facial Angle 820
850
Facial Axis 900
880
Upper Lip.E-Plane 0mm 0mm
Lower Lip.E-Plane +2mm 0mm
FMA 180
200
IMPA 1080
1080
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24. Case Report III
Patient C Age : 13yrs Sex: Female
Diagnosis : Dento-alveolar class II div.1
Malocclusion on a class II skeletal
base with an average FMA.
Treatment plan :Phase I -Twin Block
Phase II- Fixed Appliance
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25. THE TWIN BLOCK
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26. Patient with appliance
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27. Extra-oral view
Pre-operative Post-operative
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28. Extra-oral profile
Pre-operative Post-operative
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29. Intra-oral View
Pre-operative Post-operative
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30. CEPHALOMETRIC ANALYSIS
STEINERS/ BJORKS
Pre-operative Post-operative
SNA 820
820
SNB 740
760
GoGn.SN 300
310
|_ to NA 290
280
to NB 350
350
Sum of Angles 3920
3940
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31. CEPHALOMETRIC ANALYSIS
RICKETTS/ TWEEDS
Pre-operative Post-operative
Facial Angle 860
880
Facial Axis 840
840
Upper Lip.E-Plane -1mm 0mm
Lower Lip.E-Plane +2mm +1mm
FMA 200
210
IMPA 1100
1100
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32. SUPERIMPOSITION
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34. Case Report IV
Patient D Age : 10 yrs Sex: Male
Diagnosis : End -on molar relationship on a
class II skeletal base with an
average FMA.
Treatment Plan : Phase I - MGA
Phase II - Fixed Appliance
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35. MANDIBULAR GROWTH
ADVANCER ( MGA)
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36. Patient with appliance
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37. Extra-oral view
Pre-operative Post-operative
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38. Extra-oral Profile
Pre-operative Post-operative
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39. Intra-oral Profile
Pre-operative Post-operative
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40. CEPHALOMETRIC ANALYSIS
STEINERS/ BJORKS
Pre-operative Post-operative
SNA 760
740
SNB 700
720
GoGn.SN 350
360
|_ to NA 400
360
to NB 200
200
Sum of Angles 3980
3980
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41. CEPHALOMETRIC ANALYSIS
RICKETTS/ TWEEDS
Pre-operative Post-operative
Facial Angle 840
860
Facial Axis 870
890
Upper Lip.E-Plane +4mm +2mm
Lower Lip.E-Plane +2mm +4mm
FMA 300
320
IMPA 920
920
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42. SUPERIMPOSITION
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43. SUPERIMPOSITION
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44. Case Report V
Patient E Age : 12 yrs Sex:Male
Diagnosis : Dento-alveolar class II div.1
malocclusion on a class II
skeletal base with an average
FMA.
Treatment Plan: Phase I - Herbst
Phase II - Fixed appliance with
a medium pull head gear.www.indiandentalacademy.com

45. THE HERBST APPLIANCE
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46. Patient with appliance
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47. Extra-oral view
Pre-operative Post-operative
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48. Extra-oral Profile
Pre-operative Post-operative
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49. Intra-oral View
Pre-operative Post-operative
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50. CEPHALOMETRIC ANALYSIS
STEINERS/ BJORKS
Pre-operative Post-operative
SNA 760
760
SNB 710
740
GoGn.SN 300
300
|_ to NA 380
370
to NB 300
320
Sum of Angles 3910
3910
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51. CEPHALOMETRIC ANALYSIS
RICKETTS/ TWEEDS
Pre-operative Post-operative
Facial Angle 800
830
Facial Axis 890
880
Upper Lip.E-Plane +1mm 0mm
Lower Lip.E-Plane +3mm +4mm
FMA 250
250
IMPA 1030
1070
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53. SUPERIMPOSITION
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