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Tooth decay

Healthy tooth showing layers of enamel, dentin, and root, and unhealthy tooth with plaque showing cavity affecting layers of tooth.

Tooth decay is damage to the enamel of your teeth. It can lead to a hole in the tooth, called a cavity. Cavities can affect the deeper layers of the tooth.

Current as of: August 6, 2023

Author: Healthwise Staff
Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

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