1. Dental Anatomy and Masticatory Dynamics

2. George Washington’s ‘Teeth’

3. 20 th century dentures

5. Restorative Dentistry on typodont

6. Masticatory / Gnathological System

7. Masticatory / Gnathological system Masticatory: –Pertaining to chewing Gnathology –Science that deals with anatomy, histology, physiology, pathology of the jaws and masticatory system as a whole, including the applicable diagnostic, therapeutic and rehabilitative procedures Frontal view

8. Sagittal view of skull: Jaws: Maxilla – non-movable Mandible - movable Temporomandibular jt

9. Mixed Dentition: Primary /Deciduous and Permanent

10. Determination of age from teeth present

11. 6 year molar LI + CI 8 yr 7 yr LI + CI 8 yr 7 yr

12. Permanent Teeth

13. Maxillary ANTERIOR Mandibular ANTERIOR

14. Anterior Teeth Maxillary –Central Incisor (2 – right and left) –Lateral Incisor (2 – right and left) –Canine (2 – right and left) Mandibular –Central Incisor (2 – right and left) –Lateral Incisor (2 – right and left) –Canine (2 – right and left)

15. Maxillary PreMolars Mandibular PreMolars

16. Posterior Teeth - PreMolars Maxillary –1 st Premolar (2 – right and left) –2 nd Premolar (2 – right and left) Mandibular –1 st Premolar (2 – right and left) –2 nd Premolar (2 – right and left)

17. Maxillary Molars Mandibular Molars

18. Posterior Teeth - Molars Maxillary –1 st Molar (2 – right and left) –2 nd Molar (2 – right and left) –3 rd Molar (Wisdom tooth) (2 – right and left) Mandibular –1 st Molar (2 – right and left) –2 nd Molar (2 – right and left) –3 rd Molar (Wisdom tooth) (2 – right and left)

19. Division Arches –Maxillary Mandibular Quadrants –Maxillary Arch Mandibular Arch Right quadrant Left quadrant Sextants –Maxillary Arch Mandibular Arch Right posterior sextant Anterior sextant Left posterior sextant

20. Maxillary Arch

21. Left RIGHT LEFT

22. Maxillary Arch Max Right quadrant

23. Maxillary Arch Max Left quadrant

24. Maxillary Arch Max Left Posterior sextant Max Right Posterior sextant

26. CROWN coronal ROOT radicular Cervical line

27. Incisal (ant) Occlusal (post) CROWN coronal ROOT radicular APEX apical Cervical line

28. Right Midline Left

29. Mesial – towards midine Distal Away from midline

30. Right Midline Left M D M D

31. Right Left 8 9 7 10 6 11 5 4 3 14 2 15 1 -missing missing 16 UNIVERSAL SYSTEM

32. Mandible numbering system 32 missing missing 17 31 18 30 19 29 28 20 21 27 22 26 25/24 23

33. Name / number the teeth Using Universal # System

34. Name / number the teeth Using Universal # System! 4 5 6 7 8 9 10 11

35. 8 9

36. More terminology FACIAL View

37. More terminology Views / aspects of teeth –Facial –Lingual –Mesial (a proximal surface) –Distal ( a proximal surface) –Occlusal (posterior) / Incisal (anterior)

38. # 8 Facial View INCISAL MESIAL DISTAL midline

40. Apical Facial View Mesial Distal Incisal

41. Apical Mesial Distal Incisal APICAL MIDDLE CERVICAL MIDDLE INCISAL

42. Apical Mesial Middle Distal Incisal middle Mesial Middle Distal

43. Apical Facial Middle Lingual Cervical Facial Middle Lingual Incisal Proximal View

44. Proximal Facial Incisors PM Molars Trapezoid Rhomboid Triangle

45. Facial of all teeth - trapezoidal

46. Contact areas Area on proximal surface of a tooth – either M or D – when teeth are in good alignment – which touches adjacent tooth

47. Contact areas Area on proximal surface of a tooth – either M or D – when teeth are in good alignment – which touches adjacent tooth

49. Variations yet characteristics for identification

50. Maxillary Incisors Purpose Along with mandibular incisors –Esthetics –Phonetics - speech –Incising / cutting

51. Information* and Photos with black background – Tooth Atlas * Information with asterisk from Tooth Atlas CD

52. Maxillary Central Incisor Development* The initiation of calcification is between 3 and 4 months. The completion of enamel formation is 4 to 5 years. The eruption is between 7 to 8 years. Root development complete at 10 years.

53. Why DA ?

55. 5 views of teeth Facial –Labial (anterior) –Buccal (posteriors) Lingual Mesial Distal Incisal / Occlusal –Ant / posterior

56. Maxillary Central - #8 - Facial view Crown:Root - 11mm: 13 mm M-Inc Corner - 90 degrees D-Inc Corner - rounded M contact - Incisal D contact - Junction (Incisal/Middle) D M

57. Maxillary Central - #8 - Facial view Size –MD widest ANT tooth –Inc-Cerv longest Crown M outline straight D outline sltly rounded

58. Maxillary Central - #8 - Facial view Size –MD widest ANT tooth –Inc-Cerv longest Crown M outline straight D outline sltly rounded

59. Maxillary Central - #8 - Lingual view Marginal ridges (MR) –MMR > DMR –Moderately pronounced Cingulum –Moderately pronounced –D located Fossa –Moderate depth

60. Maxillary Central - #8 - Lingual view Marginal ridges (MR) –MMR > DMR –Moderately pronounced Cingulum –Moderately pronounced –D located Fossa –Moderate depth

61. Maxillary Central - #8 - Mesial view Incisal Edge sltly F to. root axis Facial surface flat CEJ (cervical line) deeper on M Root: –M surface – flat w/ depression –(D surface – convex w/ no depression)

62. Maxillary Central - #8 - Distal view Incisal Edge sltly F to. root axis Facial surface flat CEJ (cervical line) deeper on M Root: –M surface – flat w/ depression –(D surface – convex w/ no depression)

63. Maxillary Central - #8 - Incisal view Geometric –Triangular –MD > FL – Facial –flat Cingulum –Distal location

64. Maxillary Lateral Incisor Most variable ANTERIOR tooth

66. Maxillary Lateral - #7 - Facial view Crown:Root - 10mm: 13 mm M-Inc Corner - rounded D-Inc Corner - v. rounded M contact - Junction* D contact - Middle *(Incisal/Middle)

67. Maxillary Lateral - #7 - Facial view Crown:Root - 10mm: 13 mm M-Inc Corner - rounded D-Inc Corner - v. rounded M contact - Junction* D contact - Middle *(Incisal/Middle)

68. Maxillary Lateral - #7 - Facial view Size –MD smaller than CI –Inc-Cerv shorter CI M outline rounded D outline v. rounded

69. Maxillary Lateral - #7 - Facial view Size –MD smaller than CI –Inc-Cerv shorter CI M outline rounded D outline v. rounded

70. Maxillary Lateral and Central - #7 - #8 - Facial view

71. Maxillary Lateral - #7 - Lingual view Marginal ridges (MR) –MMR > DMR –Moderately pronounced –More than CI Cingulum –More pronounced than CI –Centered Fossa –Moderate depth –Pits / groove variation

72. Maxillary Lateral - #7 - Lingual view Marginal ridges (MR) –MMR > DMR –Moderately pronounced –More than CI Cingulum –More pronounced than CI –Centered Fossa –Moderate depth –Pits / groove variation

74. Maxillary Lateral - #7 - Mesial view Incisal Edge sltly F to. root axis Facial surface more rnd CEJ (cervical line) deeper on M Root: –M surface – flat w/ depression –(D surface – flat / no depression)

75. Maxillary Lateral - #7 - Distal view Incisal Edge sltly F to. root axis Facial surface more rnd CEJ (cervical line) deeper on M Root: –M surface – flat w/ depression –(D surface – flat / no depression)

76. Maxillary Lateral - #7 - Incisal view Geometric –Rnded –MD > FL – Facial –rnd Cingulum –Centered

77. Thank you