An abscessed tooth is a pain
fection at the root of a tooth or between the gum and a tooth
. It's most commonly caused by severe tooth decay
. Other causes of tooth
abscess are trauma to the tooth, such as when it is broken or chipped, and gin
givitis or gum disease.
These problems can cause openin
the tooth enamel, which allows bacteria to in
fect the center of the tooth (called the pulp). The in
fection may also spread from the root of the tooth to the bones supportin
g the tooth.