An abscess is a collection of pus that forms in the body. It can be caused by a bacterial infection, a foreign object, or a trauma. An abscess can occur anywhere in the body, including the mouth. A dental abscess is a collection of pus that forms in the tooth or gums. It can be caused by a bacterial infection that enters the tooth through a cavity, a crack, or a chipped tooth. An abscess can also be caused by gum disease.
A dental abscess can be very painful. It can also cause swelling, redness, and tenderness in the gums. If the abscess is not treated, it can spread to the jawbone or other parts of the body. In severe cases, an abscess can be life-threatening.