Definition
A pocket of pus caused by bacterial infection, usually at the root tip of a tooth or in the gums. Painful and often needs root canal, drainage, or extraction.
In detail
Dental abscesses form when bacteria reach the pulp through deep decay, a crack, or advanced gum disease. Signs include throbbing pain, visible pimple on the gum, bad taste, and sometimes fever. Untreated abscesses can spread to the bloodstream, making prompt treatment important.