Abscessed tooth

Illustration of an abscessed tooth

An abscessed tooth is a tooth that has a pocket of pus in the tissue next to it. This often occurs because the inside (pulp) of a tooth is infected and the bacteria spreads to the tissue underneath the tooth. An abscess usually causes throbbing pain in the tooth and red, swollen gums.

Last Updated: March 20, 2009

Medical Review: Kathleen Romito, MD - Family Medicine & Steven K. Patterson, BSc, DDS, MPH - Dentist

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