1. Chapter 5
Histology
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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.
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3. Tissues of the Tooth Pulp horns Enamel Pulp chamber Pulp Dentin
Pulp canal
Cementum
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4. Enamel Rod core Interprismatic substance Tomes process & enamel matrix
Lines
Retzius
Neonatal
Imbrication
Perikymata
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5. Enamel Spindles Enamel dysplasia Enamel tufts Enamel lamellae
Treatments
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6. Dentin Dentinal fluid Types of dentin Peritubular Intertubular Mantle
Circumpulpal
Primary
Secondary
Tertiary
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7. Pulp Canal, chamber, horns Pulpitis Pulp stones
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8. Components of the Periodontium
Enamel
Dentinoenamel junction (DEJ)
Dentin
Pulp
Gingiva
Cementoenamel junction (CEJ)
Cementum
Alveolar process
Lamina dura
Apex
Apical foramen
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9. Cementum Enamel Mantle dentin Epithelial attachment
Cementoenamel junction (CEJ)
Lamina propria marginal gingiva
Dentinocementum junction (DCJ)
Gingival fiber group
Cementum
Sharpey’s fibers
Pulp
Alveolar crest of alveolar bone proper
Periodontal ligament
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10. Cementum Clinical concerns Cemental spurs Hypercementosis Enamel
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
Clinical concerns
Cemental spurs
Hypercementosis
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11. Alveolar Bone Osteoblasts Osteoclasts Cortical bone Clinical concerns
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12. Periodontal Ligament Alveolar crest fiber group
Interdental fiber group
Alveolar crest
Horizontal fiber group
Alveolar bone
Dentin
Oblique fiber group
Interradicular fiber group
Alveolus (lamina dura)
Interradicular septum
Apical fiber group
Interdental bone
Cementum
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13. Periodontal Fiber Groups
Alveolar crest fiber groups
Horizontal fiber groups
Oblique fiber groups
Apical fiber groups
Interradicular fiber groups
Interdental (transseptal) ligament groups
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14. Gingival Fiber Groups Dentogingival fiber groups
Circular ligament fiber groups
Alveologingival fiber groups
Dentoperiosteal fiber groups
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15. Gingival Fiber Groups Dentogingival ligament Circular ligament
Alveologingival ligament
Dentoperiosteal ligament
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16. Gingiva Alveolar mucosa Mucogingival junction Attached gingiva
Gingiva groove
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17. Gingiva Marginal gingiva Interdental gingiva Gingival sulcus
Epithelial attachment
Clinical considerations
Gingival hyperplasia
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18. Gingiva Gingival groove Marginal gingiva Interdental gingiva
Attached gingiva
Mucogingival junction
Alveolar mucosa
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