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Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 1 Chapter 5 Histology.

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Presentation on theme: "Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 1 Chapter 5 Histology."— Presentation transcript:

1 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 1 Chapter 5 Histology

2 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 2 Histology The study of microscopic structure and function of tissues –Oral histology is the study of the tissues of the teeth and the structures of the oral cavity that surround the teeth.

3 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 3 Tissues of the Tooth Pulp horns Pulp chamber Pulp Pulp canal Cementum Enamel Dentin

4 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 4 Enamel Rod core Interprismatic substance Tomes process & enamel matrix Lines –Retzius –Neonatal –Imbrication –Perikymata

5 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 5 Enamel Spindles –Enamel tufts –Enamel lamellae Enamel dysplasia –Treatments

6 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 6 Dentin Dentinal fluid Types of dentin –Peritubular –Intertubular –Mantle –Circumpulpal –Primary –Secondary –Tertiary

7 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 7 Pulp Canal, chamber, horns Pulpitis Pulp stones

8 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 8 Components of the Periodontium Apex Dentinoenamel junction (DEJ) Cementoenamel junction (CEJ) Cementum Lamina dura Alveolar process Gingiva Pulp Dentin Enamel Apical foramen

9 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 9 Cementum Epithelial attachment Enamel Mantle dentin Cementoenamel junction (CEJ) Dentinocementum junction (DCJ) Cementum Pulp Periodontal ligament Lamina propria marginal gingiva Gingival fiber group Sharpey’s fibers Alveolar crest of alveolar bone proper

10 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 10 Cementum Epithelial attachment Enamel Mantle dentin Cementoenamel junction (CEJ) Dentinocementum junction (DCJ) Cementum Pulp Periodontal ligament Lamina propria marginal gingiva Gingival fiber group Sharpey’s fibers Alveolar crest of alveolar bone proper Sharpey’s fibers Clinical concerns –Cemental spurs –Hypercementosis

11 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 11 Osteoblasts Osteoclasts Cortical bone Clinical concerns Alveolar Bone

12 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 12 Periodontal Ligament Interdental fiber group Alveolar crest Alveolar bone Dentin Alveolus (lamina dura) Interradicular septum Interdental bone Cementum Alveolar crest fiber group Horizontal fiber group Oblique fiber group Apical fiber group Interradicular fiber group

13 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 13 Periodontal Fiber Groups Alveolar crest fiber groups Horizontal fiber groups Oblique fiber groups Apical fiber groups Interradicular fiber groups Interdental (transseptal) ligament groups

14 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 14 Gingival Fiber Groups Dentogingival fiber groups Circular ligament fiber groups Alveologingival fiber groups Dentoperiosteal fiber groups

15 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 15 Gingival Fiber Groups Dentogingival ligament Circular ligament Alveologingival ligament Dentoperiosteal ligament

16 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 16 Gingiva Alveolar mucosa Mucogingival junction Attached gingiva Gingiva groove

17 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 17 Gingiva Marginal gingiva Interdental gingiva Gingival sulcus Epithelial attachment Clinical considerations –Gingival hyperplasia

18 Copyright © 2004 by Delmar Learning, a division of Thomson Learning, Inc. ALL RIGHTS RESERVED. 18 Gingiva Gingival groove Marginal gingiva Interdental gingiva Attached gingiva Mucogingival junction Alveolar mucosa


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