A dental or tooth abscess is a buildup of pus that forms inside the teeth or gums, this is often a result of deep decay, caries or gum infections.
The source of gum infections are determined to know if it arises from the tooth itself or a gum infection. A clinical examination of the abscessed site is done and x-rays are needed to know more about its nature and severity.
Root canal treatment can be performed to treat the tooth, depending on the quality of the remaining tooth structure, or may result in extraction of the tooth if it is untreatable. If the abscess is originating from the gums they may need deeper cleaning and follow-ups to monitor healing.