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Diagnosis define the problem /certified fixed orthodontic courses by Indian dental academy

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ORTHODONTIC DIAGNOSIS – DEFINE THE
PROBLEM

INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalac...

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Diagnosis define the problem /certified fixed orthodontic courses by Indian dental academy

  1. 1. ORTHODONTIC DIAGNOSIS – DEFINE THE PROBLEM INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com
  2. 2. DIAGNOSIS DEFINE THE PROBLEM ORGANIZED THINKING THREE PLANES OF SPACE ANTERO-POSTERIOR VERTICAL TRANSVERSE INTRA-ARCH GROWTH
  3. 3. PROBLEM LIST GENERAL: CARIES; PERIODONTAL; IMPACTIONS; CONGENITAL ABSENCE; PEG LATERALS ETC. FACE : PROFILE + LIPS + SMILE ANTERO-POSTERIOR MOLAR + CANINE CLASS II /III OVERJET/ANTERIOR CROSSBITE DENTAL PROTRUSION
  4. 4. PROBLEM LIST VERTICAL OVERBITE/OPENBITE DOLICOFACIAL/BRACHYFACIAL TRANSVERSE MIDLINES FUNCTIONAL SHIFT/ASYMMETRY POSTERIOR CROSSBITE (SKELETAL/DENTAL) INTRA-ARCH: ARCH FORM; ASYMMETRY; CROWDING/SPACING
  5. 5. from OBJECTIVES to TREATMENT PLAN SPECIFIC OBJECTIVES DENTAL = TOOTH MOVEMENTS SKELETAL CHANGES CEPHALOMETRICS MOLARS AND INCISORS THREE PLANES OF SPACE
  6. 6. What are the possibilities for tooth movements/skeletal changes in three planes of space? prioritize
  7. 7. OBJECTIVE: Expand the upper arch dentally and/or skeletally PROBLEM posterior crossbite crowding-gain arch length APPLIANCE quadhelix Rapid palatal expander Hyrax expander Transpalatal bar E-arch or lip bumber archwire-outbend crossbite elastics
  8. 8. TRANSVERSE  UNILATERAL POSTERIOR CROSSBITE  BILATERAL POSTERIOR CROSSBITE
  9. 9. MIDLINE DEVIATION  TOOTH SHIFT ACROSS MIDLINE  FUNCTIONAL (POSTURAL) SHIFT OF THE MANDIBLE  COMBINATION
  10. 10. TRANSVERSE DIMENSION INITIAL CONTACT POSITION RIGHT UNILATERAL POST. CROSSBITE FUNCTIONAL SHIFT MAXIMUM INTERCUSPATION
  11. 11. DENTAL+?SKELETAL EXPANSION QUADHELIX EXPANDER FIXED BANDS AND REMOVABLE WIRE
  12. 12. DENTAL+?SKELETAL EXPANSION REMOVABLE EXPANDER FULL COVERAGE ACRYLIC CLASPS MIDLINE EXPANSION SCREW EXPANSION KEY
  13. 13. 5 MONTHS 2 TURNS/WEEK
  14. 14. FIXED ACRYLIC EXPANDER
  15. 15. SKELETAL/DENTAL EXPANSION RAPID MAXILLARY EXPANDER TOOTH-BORNE (HYRAX) PRE TREATMENT POST-EXPANSION MIDLINE DIASTEMA
  16. 16. SKELETAL/DENTAL EXPANSION RME HYRAX FIXED TO FOUR BANDS
  17. 17. SKELETAL EXPANSION RME TISSUE-BORNE (HAAS) FOUR BANDS BUCCAL + PALATAL WIRES PALATAL ACRYLIC MIDPALATAL SUTURE OPENING
  18. 18. SKELETAL EXPANSION RME BONDED EXPANDER PRE TREATMENT BILATERAL POST. CROSSBITE NARROW UPPER ARCH POST TREATMENT SKELETAL EXPANSION
  19. 19. SKELETAL EXPANSION BONDED RME POST EXPANSION STABILIZATION
  20. 20. DENTAL EXPANSION ONE TOOTH POSTERIOR CROSSBITE COINCIDENT MIDLINES CROSSBITE ELASTIC RECIPROCAL TOOTH MOVEMENT
  21. 21. PROBLEM: Crowding (create arch length); some A-P correction A-P OBJECTIVE Derotate U molars Hold/distalize U molar Maintain L incisor antero-posteriorly Hold/distalize L molar Expand premolars and molars APPLIANCE TP bar; quadhelix; archwires;bumper Headgear; bumper; pendulum appl. Class III elastics; tandem mechs.; lip bumper archwires; quadhelix; bumpers
  22. 22. CREATE SPACE HOLD/DISTALIZE LOWER MOLAR ADVANCE INCISORS TRANSVERSE EXPANSION (DENTAL) MANDIBULAR LIP BUMPER
  23. 23. CREATE SPACE DISTALIZE UPPER MOLAR SPACE LOSS PENDULUM APPLIANCE UNILATERAL/BILATERAL POST TREATMENT NANCE HOLDING ARCH
  24. 24. PENDULUM APPLIANCE-Unilateral
  25. 25. TRANSPALATAL BAR- Unilateral REMOVABLE APPLIANCESectional screw
  26. 26. CREATE SPACE DISTALIZE UPPER AND LOWER MOLARS MAINTAIN/ADVANCE LOWER INCISORS TRANSVERSE DENTAL EXPANSION TANDEM MECHANICS CLASS III ELASTICS EXTRA-ORAL TRACTION LOWER ARCH CERVICAL HEADGEAR COIL SPRING
  27. 27. MAINTAIN SPACE LATE MIXED DENTITION EARLY PERMANENT DENTITION ANTERIOR CROWDING MANDIBULAR LEEWAY (E SPACE) LINGUAL HOLDING ARCH
  28. 28. STRATEGIES TO RESOLVE CROWDING NON-EXTRACTION MECHANICS INTERPROXIMAL ENAMEL REDUCTION (STRIPPING) PREMOLAR EXTRACTIONS ONE LOWER INCISOR EXTRACTION
  29. 29. CROWDING MIXED DENTITION CRCRO  NON-EXTRACTION: LEEWAY SPACE AND HOLDING ARCHES/FIXED APPLIANCES  EXTRACTION: SERIAL EXTRACTION/ERUPTION GUIDANCE
  30. 30. MAJOR DECISIONMA EXTRACTION • EXCESS SPACE • INCISOR POSITION • ANCHORAGE NON-EXTRACTION • ADVANCE INCISORS • DISTALIZE POSTERIORS • EXPAND ARCHES
  31. 31. Extraction/Non-extraction Extraction/Non-extraction decision is an important consideration BUT the specific objectives should lead to the decision to extract or not.
  32. 32. PROBLEM: Crowding - close extraction spaces OBJECTIVE Lower incisors maintain retract Lower molars maintain protract MECHANOTHERAPY Anchorage maximum moderate minimal
  33. 33. PROBLEM: Crowding - close extraction spaces OBJECTIVE Upper incisors maintain retract Upper molars maintain protract MECHANOTHERAPY Anchorage maximum moderate minimal
  34. 34. EXTRACTION MECHANICS ANCHORAGE RELATIVE ANCHORAGE VALUES OF THE TEETH MAXIMUM ANCHORAGE EXTRA-ORAL ANCHORAGE CERVICAL HEADGEAR
  35. 35. ANCHORAGE AUXILIARIES -MODERATE ANCHORAGE NANCE HOLDING ARCH TRANSPALATAL BAR (REMOVABLE)
  36. 36. CLASS I EXTRACTION CASE CROWDING DENTAL PROTRUSION PRE TREATMENT PROTRUSIVE LIPS STRAINED ON CLOSURE
  37. 37. CLASS I EXTRACTION CASE CROWDING DENTAL PROTRUSION PRETREATMENT INCREASED OVERBITE CLASS I (CLASS II TENDENCY) INCREASED OVERJET
  38. 38. CLASS I EXTRACTION SLIGHT UPPER CROWDING MODERATE LOWER CROWDING
  39. 39. EXTRACTION MECHANICS ELASTOMERICS (C CHAIN) PUSH COIL SPRING CLOSING LOOPS ELASTOMERICS
  40. 40. CLASS I MIXED DENTITION SEVERE CROWDING SERIAL EXTRACTION PRETREATMENT ORTHOGNATHIC STRAIGHT/SLIGHTLY CONVEX LIPS RELAXED
  41. 41. SERIAL EXTRACTION PRETREATMENT MIDDLE MIXED DENTITION CLASS I AVERAGE OVERJET+ ANTERIOR CROSSBITE AVERAGE OVERBITE POSTERIOR CROSS-BITE (RIGHT MOLARS)
  42. 42. SERIAL EXTRACTION POSTERIOR MOLAR CROSSBITE (RIGHT SIDE) MIDLINES COINCIDE SEVERE CROWDING -MAXILLARY ARCH MOLAR ROTATION
  43. 43. SERIAL EXTRACTION SEVERE CROWDING MANDIBULAR ARCH EXCESSIVE CURVE OF SPEE (DEEP OVERBITE)
  44. 44. SERIAL EXTRACTION INTRA-ORAL (PERI-APICAL) RADIOGRAPHS CEPHALOMETRIC RADIOGRAPH
  45. 45. SERIAL EXTRACTION PROGRESS PRIMARY CANINES EXTRACTED AWAITING ERUPTION OF FIRST PREMOLARS
  46. 46. SERIAL EXTRACTION FIRST PREMOLARS ERUPTING
  47. 47. SERIAL EXTRACTION PROGRESS INTRA-ORAL RADIOGRAPHS
  48. 48. SERIAL EXTRACTION EXTRACTION OF FIRST PREMOLARS AND ERUPTION OF CANINES LOWER LINGUAL HOLDING ARCH
  49. 49. OBJECTIVE: Advance upper and/or lower incisors PROBLEM anterior crossbite crowding - gain arch length Class II- mandibular dental retrusion APPLIANCE archwires-utility advancement; levelling wire Class III elastics Class II elastics high lip bumper tandem mechanics
  50. 50. ADVANCE UPPER INCISORS ANTERIOR CROSSBITE MIXED DENTITION ANTERIOR CROSSBITE REMOVABLE APPLIANCE CLASPS; OCCLUSAL ACRYLIC FINGER SPRINGS
  51. 51. ANTERIOR CROSSBITE LIMITED FIXED APPLIANCE PRE-TREATMENT POST-TREATMENT
  52. 52. ADVANDE INCISORS ANTERIOR CROSSBITE ANTERIOR CROSSBITE (ALSO BILATERAL POSTERIOR CROSSBITE) PARTIAL FIXED APPLIANCE
  53. 53. QUADHELIX RETAINER
  54. 54. ADVANCE INCISORS ANTERIOR CROSSBITE PSEUDO-CLASS III MAXIMUM INTERCUSPATION ANTERIOR CROSSBITE UPPER ARCH CROWDING UPPER MIDLINE RIGHT (CROWDING) INITIAL CONTACT POSITION FUNCTIONAL SHIFT (ANTERIOR+LATERAL
  55. 55. OBJECTIVE: Level lower arch; increase compensating curve; extrude post. teeth / increase vertical PROBLEM overbite deep curve of Spee deep bite pattern (brachyfacial) good lip line APPLIANCE full-arch mechanics anterior bite plate functional appliances cervical headgear inter-arch elastics (Class II or Class III; vertical)
  56. 56. EXTRUDE POSTERIOR TEETH (INCREASE THE VERTICAL DIMENSION) DEEP OVERBITE PRE-TREATMENT DEEP OVERBITE FIXED APPLIANCES ANTERIOR BITE PLATE
  57. 57. EXTRUDE POSTERIOR TEETH (INCREASE THE VERTICAL DIMENSION) DEEP OVERBITE INITIAL INSERTION OF ANTERIOR BITE PLATE EFFECT OF ANTERIOR BITE PLATE + ARCH WIRES
  58. 58. OBJECTIVE: Intrude upper and/or lower incisors PROBLEM deep overbite high lip line deep curve of Spee vertical pattern Class II-distally tip upper molars upright lower molarsavoid L1 advancement APPLIANCE 2 X 4 Incisor intrusion arches / utility arches
  59. 59. INCISOR INTRUSION DEEP OVERBITE PRETREATMENT DEEP OVERBITE EFFECTS OF INTRUSION ARCH WIRES
  60. 60. EXTRUDE UPPER INCISORS ANTERIOR OPEN BITE (THUMB/TONGUE HABIT) THUMB/TONGUE CRIB MIDDLE MIXED DENTITION ANTERIOR OPEN BITE
  61. 61. EXTRUDE UPPER/LOWER INCISORS ANTERIOR OPEN BITE (THUMB/TONGUE HABIT) FOLLOWING TONGUE CRIB SPONTANEOUS INCISOR ERUPTION VERTICAL ELASTICS WITH FIXED APPLIANCES
  62. 62. OBJECTIVE: Control/maintain vertical dimension-intrude dimension-intrude upper/lower posterior teeth PROBLEM open bite vertical pattern dolicofacial APPLIANCE high-pull headgear lower lingual arch occlusal splint vertical pull chin-cup “Kim” mechanics (MEAW)
  63. 63. CONTROL VERTICAL DEVELOPMENT ANTERIOR OPEN-BITE VERTICAL SKELETAL PATTERN ANTERIOR OPEN BITE VERTICAL SKELETAL PATTERN
  64. 64. CONTROL VERTICAL DEVELOPMENT ANTERIOR OPEN-BITE VERTICAL SKELETAL PATTERN HIGH-PULL HEADGEAR VERTICAL PULL CHIN-CUP
  65. 65. INTRUDE/HOLD POSTERIOR TEETH VERTICALLY LOWER POSTERIOR BITE BLOCK (OCCLUSAL SPLINT)
  66. 66. OBJECTIVE: Growth modification (orthopedics)(orthopedics)Maxillary retraction/protraction Mandibular protraction/retraction PROBLEM Class II div. 1 max. protrusion mand. retrusion Class III max. deficiency mand. prognathism APPLIANCE Headgear Functional appliances Class II elastics Face mask Class III elastics Functional appliances Chin cup
  67. 67. www.indiandentalacademy.com Leader in continuing dental education

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