Gum | Anatomy - Britannica

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• Healthline - 6 Ways to Keep Your Gums Healthy

gum anatomy Ask Anything Homework Help Also known as: gingiva, gingivae Written and fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Britannica Editors History Britannica AI Ask Anything Table of Contents Table of Contents Ask Anything

gum, in anatomy, connective tissue covered with mucous membrane, attached to and surrounding the necks of the teeth and adjacent alveolar bone. Before the erupting teeth enter the mouth cavity, gum pads develop; these are slight elevations of the overlying oral mucous membrane. When tooth eruption is complete, the gum embraces the neck region of each tooth. As well as being attached to adjacent alveolar bone, gum is connected to the cement of each tooth and to the tooth enamel.

Also called: gingiva (Show more) Plural: gingivae (Show more) Related Topics: dentistry mouth (Show more) See all related content

Healthy gums are pink, stippled, and tough and have a limited sensibility to pain, temperature, and pressure. The gums are separated from the alveolar mucosa, which is red, by a scalloped line that approximately follows the contours of the teeth. The edges of the gums around the teeth are free and extend as small wedges into the spaces between the teeth (interdental papillae). Internally, fibres of the periodontal membrane enter the gum and hold it tightly against the teeth. Changes in colour, loss of stippling, or abnormal sensitivity are early signs of gum inflammation, or gingivitis (q.v.).

This article was most recently revised and updated by Kara Rogers.