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TEETH& ESOPHAGUS Dr IramTassaduq ANATOMICAL DIVISION Crown Crown Root Root.

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Presentation on theme: "TEETH& ESOPHAGUS Dr IramTassaduq ANATOMICAL DIVISION Crown Crown Root Root."— Presentation transcript:

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2 TEETH& ESOPHAGUS Dr IramTassaduq

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4 ANATOMICAL DIVISION Crown Crown Root Root

5 COMPONENTS OF TOOTH Enamel Dentin Cementum Pulp

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7 ENAMEL Acellular mineralized tissue that covers the crown of tooth Hardest substance in the body Once formed, can't be replaced 96-98% exist mainly as hydroxyapatite crystals

8 CEMENTUM Covers the dentin of the root. Pale yellowish Softer and more permeable Cementocytes sharpeys fibers

9 Enamel is produced from ameloblasts of the enamel organ Dentin is produced by neural crest derived odontoblasts of the adjacent mesenchyme

10 DENTIN A calcified material that forms most of tooth substance Hard, yellowish, elastic Lines surface that is in contact with pulp Secreted by odontoblast

11 DENTAL PULP & CENTRAL PULP CAVITY (Pulp chamber) Space occupied by pulp (highly vascular and sensitive loose connective tissue Apical foramen

12 SUPPORTING TISSUE OF THE TEETH Alveolar bone proper Periodontal ligament Gingiva

13 OVERVIEW OF GIT

14 MUCOSA

15 FUNCTIONS Protection Absorption Secretion

16 SUBMUCOSA

17 MUSCULARIS EXTERNA

18 ADVENTITIA/SEROSA

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23 SUBMUCOSA

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25 MUSCULARIS EXTERNA

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