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Similar to tooth Morphology central incisor
tooth Morphology central incisor
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- 3. Characteristic of labialsurface 1-cervical line convex appically 2-2labial grooves 3-right mesio-incisal angle 4-round disto-incisal angle 5-3mammelons 6-crest of curvature is in the cervical third the other 2/3flat 7-mesial out line straight distal out line more or less rounded
- 4. LINGUAL SURFACE • Lingualfossa • Cingulum • Marginal ridges • Cervical line covex apically • Narrower than the labiaL • + OF THE LABIAL 12/27/174
- 5. Proximal ( mesial&distal • 1- triangular in shape • 2- apex incisally • 3- base at cevical line • 4- labial out line curved 5- lingual out line is S shaped • 6- cervical line concave appically
- 6. incisal • Straight line •3 mammelons • Convexs labially • Concave lingually • Mesial right & distal rounded • Wider labially ,narrower lingually
- 7. incisal • Straight line •3 mammelons • Convexs labially • Concave lingually • Mesial right & distal rounded • Wider labially ,narrower lingually
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- 13. 12/27/1713 •*Central pit:-MBg,Lg&Cent g/*Mesialpit:- Cg,MMg,MB angu.g,ML angu.g /*Distal pit:- Cg,DBg,DMg,DL angu.g +secondary grooves—(Y(
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- 19. 12/27/1719 •Occlusal: There arefour well developed cusps with developmental grooves that meet at a right angle to form the distinctive "+4" pattern characteristic of this tooth.
- 20. (2(A 16 yearsold girl presented with this small tooth between her maxillary central incisors and dificulty in cutting with her anterior teeth
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- 43. 12/27/1743 Numbering systems fornotation of the teeth
- 44. 12/27/1744 Palmer notation system •Eachtooth in a quadrant takes a letter (A – E for deciduous) or a number (1 – 8 for permanent) indicating its order when counting from the midline 87654321 87654321 12345678 12345678 E D C B A E D C B A A B C D E A B C D E
- 45. 12/27/1745 Quadrants 1or 5 2or6 4or 8 3or 7
- 46. 12/27/1746 FDI numbering system •Proposedby FDI & adopted by WHO •Each tooth is allocated a two-digit number; the left designates the quadrant and the right designates the tooth order •Examples –Mandibular right permanent canine 43 –Maxillary left deciduous lateral incisor 62 DECIDUOUS PERMANEMT5554535251 8584838281 7172737475 6162636465 1817161514131211 4847464544434241 2122232425262728 3132333435363738
- 47. 12/27/1747 Universal numbering system •Palmer– difficulty in keyboard typing •ADA adopted the universal system in 1968 •Letters for deciduous teeth –Consecutive from A to T –Following a clockwise order from maxillary right second molar to mandibular right second molar •Numbers for permanent teeth –Consecutive from 1 to 32 –Following a clockwise order from maxillary right third molar to mandibular right third molar A B C D E T S R Q P O N M L K F G H I J 12345678 3231302928272625 2423222120191817 910111213141516
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- 54. 12/27/1754 Surfaces of theAnt. teeth Ant;
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- 64. 12/27/1764 Tooth Divided into Thirds
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