The parodontium & probing - The probe
6 important questions on The parodontium & probing - The probe
The cross- sectional view of the gingival tissues shows the relationships of the...?
- Oral epithelium
- Sulcular epithelium
- Junctional epithelium
- And the connective tissue
See the picture, name the different gingival shape that you see
- A= blunted papillae
- B= Bulbous papillae
- C= Cratered papillae
- D= Rolled, lifesaver-shaped, "McCall's festooons"
Which gingival recession do you see on the picture?
- A= Stillman's cleft (v shaped)
- B= Varying degrees of severity in relation to the mucogingival junction
exposure of root surface resulting from the apical migration of the JE exposing the CEJ
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Explain tooth eruption and the gums through the picture
- A= before eruption, the oral epithelium covers the tooth
- B= as the tooth comes out, the reduced epithelium joins the oral epithelium and the gingival sulcus starts to form
- C= partial eruption - junctional epithelium (JE) located along the enamel
- D= eruption complete - (JE) located at the cement-enamel junction
- E= from disease or other cause, the attachment can migrate along the root surface, exposing the cementum
What are periodontal ligaments?
What are gingival fiber groups?
- Fibrous connective tissue that surrounds and attaches the alveolar bone to the cementum
- Inter- connection between bone and tooth
- Allows for movement to distribute the chewing (masticatory) forces
- Fibers inserted into the cementum on one side and the alveolar bone one on the other are called Sharpey's fibers
Fiber groups:
- located around the cervical area within the gingival tissues
- dentogingival fibers - free gingiva
- alveogingival fibers - attached gingiva
- circular fibers - around the neck of the tooth to help maintain the tooth in position
- dentoperiosteal fibers - alveolar crest
- transseptal fibers - running across the medial and distal areas between the teeth
Name the 5 groups of collagen fibers
- Alveolar crest fibers
- Horizontal fibers
- Interradicular fibers
- Oblique fibers
- Apical fibers
= the dentoalveolar fiber groups
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