What's to know about dental abscesses?

A dental abscess, or tooth abscess, is a buildup of pus that forms inside the teeth or gums. A dental abscess typically comes from a bacterial infection, often one that has accumulated in the soft pulp of the tooth. Bacteria exist in plaque, a by-product of food, saliva, and bacteria in the mouth, which sticks to the teeth and damages them and the gums. If the plaque is not removed by regular and proper brushing and flossing, the bacteria may spread inside the soft tissue of the tooth or gums. This can eventually result in an abscess.

https://www.medicalnewstoday.com/articles/170136