Basic Terminology

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Crown, Coronal, Root, and Radicular

Crown: The anatomical part of the tooth visible in the mouth.
Coronal:
Referring to the crown portion of a tooth.

Root:
The part of the tooth structure below the crown, normally surrounded by bone.
Radicular:
Pertaining to the root of a tooth.

Anatomical Crown

Anatomical crown: The portion of the tooth that is covered by enamel.

Clinical Crown

Clinical crown: The portion of the tooth that is visible and not covered by the gums. The clinical crown here is denoted by the light blue line.

Gingiva

Gingiva: Also known as the gums, the soft mucosal tissue that covers the jawbone and surrounds part of the teeth.

Supragingival / Subgingival

Supragingival: Above the gumline.

Subgingival: Below the gumline.

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