This document provides an overview of oral anatomy and related topics. It discusses tooth anatomy including the crown, root, and four tooth tissues. It also describes the types of teeth, dentition, periodontium including the gingiva, alveolar bone, and periodontal ligament. Finally, it covers the four types of papillae on the tongue and their characteristics.

1. Stamotology --- Oral medicine Tianjin medical university general hospital ZhangJie ( 张结 ) Tel:13820787738 E-mail:Jane_2410@126.com

2. Oral anatomy Oral molecular biology Introduction Oral physiology Oral medicine Oral surgery Orthodontics Pedodontics Prosthodontics Stamotology

3. Frantal hairline Hyoid bone Posterior border of the mandibular ramus

4. Introduction Stamotology Prothodontics Orthodontics Oral surgery Oral medicine Stamotology of our lecture Dental caries Periodontal disease Oral mucous membrane disease Surgical treatment of the oral cavity diseases The diagnostics, prevention,treatment , of irregularities of the individual teeth, groups of teeth and anomalies of jaws .

5. Outline of oral medicine 0ral medicine 0ral mucous membrane disease Periodontal disease Dental caries Dental anatomy Tooth 0ral mucosa Periodontium

7. Crown and root Cemental-enamel junction(CEJ)

9. Difference The anatomic crown The clinic crown The anatomic crown The clinic crown

12. Tooth Crown and root Tooth tissues Types of teeth Dentition 1 2 4 3 Four tooth tissues 1.Enamel 2.Dentin hard 3.Cementum 4. Pulp soft

13. 1.Enamel Enamel forms the outer surface of the crown

14. Thickness of enamel Mineralization of enamel Pigmentation Color of teeth

15. The chemical composition

16. 2.Dentin Dentin forms the largest portion of the tooth The color of the dentin is yellow

17. The chemical composition

18. Unlike enamel ,dentine is capable of adding to itself. When it does this, the new dentin is called secondary dentin . Secondary dentin.

19. 3.Cementum

20. Medium to attachment of the tooth to the alveolar bone

21. Cellular: 1/3apical root Acellular: anatomic root

22. The chemical composition

23. 4.Pulp Dentin-reparative system Blood Vessels Nourishing Activate and support Lymph tissue Nerve tissue Filters the fluids within the tooth Fight bacteria Sensory,/responds only to pain Special cells

24. Pulp chamber Pulp canal Root canal Pulp cavity

25. Tooth Crown and root Tooth tissues Types of teeth Dentition

26. Incisors cut incisal edge

27. Canines Holding Grasping

28. Premolars Chew Grind Holding Grasping

29. Molars Chew Grind

30. Anterior teeth Posterior teeth

31. Tooth Crown and root Tooth tissues Types of teeth Dentition

33. How to identify a deciduous tooth?

34. How to identify a permanent tooth?

35. 1 Dental anatomy ---- Periodontium Oral mucosa Tooth Gingival unit Attachment unit 1.Free gingiva 1.Cementum. 2.Attached gingiva 2.Alveolar bone 3.Alveolar mucosa 3.Periodontal ligament

36. 1.Gingiva unit---free gingiva Free Gingiva is the gum tissue extends from the gingival margin to the base of the gingival sulcus.

37. Gingival sulcus is the space between the gingiva and the tooth. A healthy gingival sulcus will rarely exceed 3mm in depth.

38. 1.Gingiva unit---attached gingiva Attached gingiva extends from the base of this sulcus to the mucogingival junction .

39. 1.Gingiva unit---alveolar mucosa Alveolar mucosa is found apical to the mucogingival junction and is continuous with the rest of the mucous membrane of the cheeks lips and the floor of the mouth .

40. Gingival papilla is the free gingiva located in the triangular interdental space. The apex in the anterior teeth is rather sharp but is more blunt in the posterior teeth.

41. 2.Attachment unit— Cementum Alveolar bone Periodontal ligament Alveolar process is the type of bone that lines the sockets in which the roots of the teeth are held. It is thin and compact with many small openings through which blood vessels ,lymph vessals, and nerves pass. Alveolus is the socket in which the tooth rests.

42. 2.Attachment unit— Cementum Alveolar bone Periodontal ligament Periodontal ligament are the fibers attached to the alveolar bone and to the cementum