Orthodontics terms /certified fixed orthodontic courses by Indian dental academy

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The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.

Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078

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Orthodontics terms /certified fixed orthodontic courses by Indian dental academy

  1. 1. INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  2. 2. MALOCCLUSION  COINED BY GUILFORD www.indiandentalacademy.com
  3. 3. TPA  COINED BY GOSH GUERIAN www.indiandentalacademy.com
  4. 4. LINGUAL ARCH  FRANCESCA MIOTTI www.indiandentalacademy.com
  5. 5. UTILITY ARCH  RICKETS - ASSISTANT www.indiandentalacademy.com
  6. 6. COLOUR CODING FOR TRACING CEPHALOMETRICS IN CLINICAL PRACTICE, AO – VOL – 29: NO – 1: JAN 1959)  ORIGINAL TRACING – BLACK  INTERMEDIATE TRACING – BLUE  RETENTION TRACING – GREEN  FINISHED TRACING – RED  SUBSEQUENT TRACINGS - TERRACOTTA www.indiandentalacademy.com
  7. 7. Jacobson – radiology (pg- 25)  Sheldon 1940 – 1. PHYSIQUE (Built)- ( Athletic, Esthetic, Plethoric)     BODY BUILD (Sheldon) Ectomorphic – long and thin Mesomorphic – in between Endomorphic – short and obese ---- BUILT Athletic Esthetic Plethoric  Durer – 1. PROFILE ( Convex, Straight, Concave) 2.FACIAL FORM(Leptoprosopic, Mesoprosopic, Euryprosopic)  Martin & saller 1957 – 1. Morphologic facial index 2. Cephalic index www.indiandentalacademy.com
  8. 8. FACIAL INDEX  (Martin & Saller) FACIAL INDEX ( MARTIN & SALLER ) = BIZYGOMATIC WIDTH Morphologic FACIAL HEIGHT ( N & GNATHION )   HYPER EURYPROSOPIC EURYPROSOPIC MESOPROSOPIC LEPTOPROSOPIC  HYPER LEPTOPROSOPIC  SHAPE OF DENTAL ARCH IS RELATED TO THIS CEPHALIC AND FACIAL INDEX. EURYPROSOPIC FACE ------- BROAD, SQUARE ARCHES. BORDER LINE CASE--- EXPANSION. LEPTOPROSOPIC FACE ----- NARROW, TAPERING ARCHES. EXTRACTION IS PREFFERED OVER EXPANSION.       www.indiandentalacademy.com --------------- < 78.9 ( LOW FACIAL HEIGHT ) --------------- 79.0 – 83 ( SKELETON ) -------------- 84.0 – 87.9 ( AVERAGE SKELETON ) -------------- 88.0 – 92.9 ( HIGH FACIAL ) --------------- > 93.0 ( SKELETON )
  9. 9. CEPHALIC INDEX  CEPHALIC INDEX ( MARTIN & SALLER ) ( MARTIN & SALLER ) = Maximum skull width Maximum skull length  Dolicocephalic -- < 75.9  Mesocephalic --- 76.0 – 80.9 ( average )  Brachycephalic -- 81.0 – 85.4 ( average )  HYPERBRACHYCEPHALIC -- > 85.5 SHAPE OF DENTAL ARCH IS RELATED TO THIS CEPHALIC AND FACIAL INDEX. EURYPROSOPIC FACE ------- BROAD, SQUARE ARCHES. BORDER LINE CASE--- EXPANSION. LEPTOPROSOPIC FACE ----- NARROW, TAPERING ARCHES. EXTRACTION IS PREFFERED OVER EXPANSION. www.indiandentalacademy.com
  10. 10. GOLDEN PROPORTION- FRA LUCA PACIOLI ( 1509) www.indiandentalacademy.com
  11. 11. GABLE BEND  Gable bend – mulligan (Article Common Sense Mechanics part 8) www.indiandentalacademy.com
  12. 12. PALATAL HEIGHT INDEX (KORKHAUS 1939)  PALATAL HEIGHT INDEX = PALATAL HEIGHT X 100 POSTERIOR ARCH WIDTH  AVERAGE INDEX VALUES 42% ADAPTED FROM Harth (1930) : the values in the first column represent the sum of the mesiodistal diameters of the four maxillary incisors : the values in the second and third columns indicate the ideal anterior and posterior arch widths respectively of the maxilla and the mandible that correspond to these sums www.indiandentalacademy.com
  13. 13. QUINTERO’S IGN CLINICAL SUCCESS IN EARLY ORTHODONTICS TREATMENT ( ANTONIO PATTI, GUY PERRIER D’ARC, pg - 57)  Fanning out of incisors – in primary dentition crowns (QUINTERO’S IGN ) Radiographic sign  Imbrication  Root crowding www.indiandentalacademy.com
  14. 14. Dauntic guage  16 calibertions, every 4th caliberation is double line.  Each caliberation = 1 ounce, ( 1 ounce = 28.34grms)  14th caliberation = 400grms , 17th = 500grms. www.indiandentalacademy.com
  15. 15. DRIFTODONTICS Dr. Sam Papandreas  EVERY YEAR  The mandibular anteriors uprighted an average of 8°  The cuspids drifted distally and expanded 1.7 mm  The molars drifted forward only 1.2 mm. www.indiandentalacademy.com
  16. 16. AO – 1972, 42 ; 236 - 244 www.indiandentalacademy.com
  17. 17. Permanent tooth estimation by radiograph  Huckaba gave radiographic assessment of any tooth (3rd molar).   X = Y x X1 Y1  X - the estimated size of permanent tooth  X1 - the radiographic size of permanent tooth  Y - the size of the primary mandibular second molar on the cast  Y1 - the radiographic size of the primary molar www.indiandentalacademy.com
  18. 18.  Brass wire diameter – 0.033 inch ( G.V. 4TH EDITION – Pg -441)  Lateral ceph enlargement will be approximately 7% the original structure (European Journal of Orthodontics 18 (1996) 491-497). www.indiandentalacademy.com
  19. 19. Retention  Class – II vector : ¾ inch or 2 – ounce elastic “W”with a tail. (Class – II deep bite cases )  Class – III vector : ¾ inch or 2 – ounce elastic “M”with a tail. ( Class – III open bite cases  Class – I vector : ¾ inch or 2 – ounce elastic “W” OR “M” without a tail. Anterior box elastics for additional overbite correction www.indiandentalacademy.com
  20. 20. TWEED MERRIFIELD Diagnostic analysis system – Jacobson (pg- 131)  The upper lip usually thins with maturation but thickens with maxillary incisor retraction.  Approximately 1 mm of thickening occurs with each 4 mm of incisor retraction.  The thickness of soft tissue chin (TC) should be equal to the Upper lip (1:1). If it is not then the orthodontist should compensate by incisor positioning. www.indiandentalacademy.com
  21. 21. CVMI - LAMPARSKI  Establishment of the maturation stages of cervical vertebrae was performed by the method proposed by Hassel and Farman (1995), which visually analyzes the cervical vertebrae 2 (C2), 3 (C3) and 4 (C4) as to the formation of a concavity on the lower border and the body morphology, establishing six stages of skeletal maturation: 1) initiation, 2) acceleration, 3) transition, 4) deceleration, 5) maturation, and 6) completion. www.indiandentalacademy.com
  22. 22. Safety valve mechanism  Maxillary canines erupt first and then maxillary canines guiding the mandibular growth www.indiandentalacademy.com
  23. 23. C axis www.indiandentalacademy.com
  24. 24. G axis www.indiandentalacademy.com
  25. 25. Y – AXIS (JCO 1975 Apr A 4 step method)  Dr. Brodie first employed Y – Axis as one of the earliest lines of reference. www.indiandentalacademy.com
  26. 26. R – POINT (REGISTRATION POINT)  INTRODUCED BY BROADBENT.  A PERPENDICULAR TO SELLA IS ERRECTED FROM THE BOLTON – NASION(Bo-N) PLANE.  THE MID POINT OF THIS PERPENDICULAR IS CALLED THE REGISTRATION POINT®  TRACINGS OF SUCCESSIVE CEPHALOGRAPHS ARE SUPERIMPOSED ON R, KEEPING Bo-n PLANES OF THESE RADIOGRAPHS PARALLEL TO EACH OTHER www.indiandentalacademy.com
  27. 27. POINT – A (AJO-1980 JAN 92-96  DOWNS – VARIATIONS IN FACIAL RELATIONSHIP: THEIR SIGNIFICANCE IN TREATMENT AND PROGNOSIS : AJO 34: 812-840; 1948  POINT – A REVISITED – JARABAK & FIZZELL (A point 2mm ahead of the root apex) www.indiandentalacademy.com
  28. 28. Eva point (ceph land mark) JCO – 1975, june growth prediction – 2 ( rickets)  Named after his mother EVA  MURRAY POINT Named after his father  BASICRANIAL AXIS – HUXLEY  CRANIAL BASE TRIANGLE – (Basion – Nasion – Gonion) Facial axis angle ( X – Y Axis)– Aveg – 900  RICKETS DESIGN FOR HEADGEAR – CIRCLE IN THE OUTER BOW www.indiandentalacademy.com
  29. 29. Facial 1/3rd  Da vinci and Durer(artists or renaisence) divided into 3 thirds  Farkas(Caucasian) again divided lower 3rd into 2/3rd www.indiandentalacademy.com
  30. 30. Eastman correction www.indiandentalacademy.com
  31. 31. VTO  DEVELOPED BY RICKETS  COINED BY HOLDAWAY www.indiandentalacademy.com
  32. 32. NATURAL HEAD POSITION  FIRST TERMEDBY BROCA www.indiandentalacademy.com
  33. 33. ROCKER MANDIBLE (AJODO-1987;91:117-124)  Houghton – believes that an OBTUSE CRANIAL BASE ANGLE is the moat important cranial factor involved in the formation of a mandible with no distinct ANTIGONIAL NOTCH, which is termed as rocker mandible. www.indiandentalacademy.com
  34. 34. EXTRACTIONS  CALVIN CASE – RECOMMENDED EXTRACTION OF TEETH TO RETRACT PROCUMBENT LIPS. ALL 4’S EXTRACTION - C. H. TWEED UPPER 4’S AND LOWER 5’S - PERCY REYMOND BEGG 2ND MOLAR EXTRACTION - CHAPIN W. (AJO 1939;11 : 1072-8) LOWER INISOR EXTRACTION - ALI-AKBAR BAHREMAN (AJO 1977; 72(5): 560-567) ALL 6’S EXTRACTION - WILKINSON  Extraction of peg-shaped lateral incisors. (Am J Orthod Dentofacial Orthop 2008;134:332) www.indiandentalacademy.com
  35. 35. PREMOLAR EXTRACTIONS  BOURDET (1757), a disciple of PIERRE FAUCHARD, recommended the removal of the premolars to relieve crowding.  HUNTER (1835) – extracted the first premolars to allow incisor retrusion in cases of posterior protrusion.  Then extraction debate came between ANGLE and CASE. www.indiandentalacademy.com
  36. 36. ORTHOGNATHIC SURGERY CDE on 3 April”12. Chetan Jayade  General considerations A – Arch considerations & alignment B – Bite considerations C – Canine / Corrrection of midline D -- Decompensation  General guide line for Class II correction Over jet > 10 mm Pog to N perpendicular distance : 18 mm Mandibular corpus length < 80 cms Facial Ht. greater than 125 cm www.indiandentalacademy.com
  37. 37.  Guide lines for class III Reverse overjet < 4 mm Skeletal disparity > 5 mm Mandibular corpus length > 105 mm Facial Height greater than 125 cms www.indiandentalacademy.com
  38. 38. Thank you For more details please visit www.indiandentalacademy.com www.indiandentalacademy.com

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