Essential Clinical Oral Biology by Creanor Stephen

Author:Creanor, Stephen
Language: eng
Format: epub
ISBN: 9781118939680
Publisher: John Wiley & Sons, Inc.
Published: 2016-03-21T00:00:00+00:00

Internal and external basal lamina

Hemidesmosomes

Cuboidal epithelial cells

Epithelium Facing the Tooth

Hemidesmosomes attach directly onto the enamel crystallites via the basal lamina. When there has been periodontal disease and there has also been gingival recession, the epithelium may, however, be attached to cementum, dentine or even dental calculus. In all cases, the ultrastructural appearance of the epithelium is identical. During gingival recession, the epithelium becomes detached from the tooth, since the basal lamina facing the tooth is lost – virtually ‘unzipping’ it from the tooth. The gingiva still remains attached to the tooth since the most apical cells of the junctional epithelium divide and reattach to the tooth, only in a more apical position.

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