An abscessed tooth occurs when bacteria causes an infection in your gums and even inside your teeth. This creates a pocket of pus that is unable to drain, therefore becoming swollen and painful. This is known as an abscess and it acts as a barrier around the infection to stop its spread. However, if left untreated, the bacterial infection can escalate to other parts of the mouth and affect your overall health.
There are two different kinds of abscesses, including:
- Periodontal abscess — An infection between the tooth and gum usually caused by food getting trapped there and poor cleaning of the teeth to get that food debris out. In severe cases, the bacteria can build up and affect the bone.
- Periapical abscess — An infection inside the tooth pulp. The pulp is the soft tissue and nerves inside of the root canal, and it can succumb to an infection and begin to die. This type of abscess can also spread to the surrounding bone.