Dental Anatomy and Masticatory Dynamics

1. Dental Anatomy and Masticatory Dynamics

2. George Washington’s ‘Teeth’

3. 20th 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

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 • 1st Premolar (2 – right and left) • 2nd Premolar (2 – right and left) • Mandibular • 1st Premolar (2 – right and left) • 2nd Premolar (2 – right and left)

17. Maxillary Molars Mandibular Molars

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

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

20. Maxillary Arch

21. RIGHT LEFT 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. Right Midline Left Mesial – towards midine Distal Away from midline

30. Right Midline Left M D M D

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

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 midline DISTAL MESIAL INCISAL

40. Apical Facial View Mesial Distal Incisal

41. Apical Mesial Distal Incisal APICAL MIDDLE CERVICAL CERVICAL MIDDLE INCISAL

42. Apical Mesial Middle Distal Incisal middle Mesial Middle Distal

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

44. Proximal Facial Incisors PM Molars 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 yetcharacteristics for identification

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