Why would a deciduous baby tooth abscess?

Decay: A deciduous tooth, like a secondary or permanent tooth can have an abscess if bacteria get into the pulp tissue. Bacteria decay the tooth, and if untreated, it can abscess. A deciduous tooth can be saved by having a root canal treatment, if a second tooth is not coming. Ask your dentist for a referral to an endodontist if they don't do root canal treatment on a primary tooth.

Baby tooth abscess: Baby and permanent teeth abscess for the same reason-decay or inlury that progresses into the center of the tooth where the nerve tissue is located. This tissue dies and becomes a liquid which then exits the tooth out of the root end into the bone. The bone then melts away as the infected liquid takes up more space.

Baby tooth abcess: There is a situation that can arise when a permenent tooth begins erupting and starts to deteriorate the root of the baby tooth and lead to an "infection" from killing the nerve in the baby tooth or irritating the tissue around the baby tooth and an eruption granuloma can form around the baby tooth as a result many times the management of this situation requires removal of the baby tooth.

Decay: And for many anatomic reasons, decay (bacterial damage) proceeds faster in baby teeth than in permanent teeth. As the infection (bacteria) proceeds to exit the tooth it can damage supporting bone which can effect eruption of underlying permanent tooth, and/or can damage the permanent tooth itself, and/or can spread to other organ systems and be quite dangerous.