A tooth abscess is a collection of pus that forms inside a tooth or its surrounding structures. The abscess itself is one of the later stages of tooth decay, and typically occurs before tooth loss.

Tooth decay can appear differently depending on the stage of severity. You may experience more symptoms, including pain and swollen lymph nodes, at later stages. Tooth decay is damage that occurs to ...

Sasha Ross, DMD, MS, is a board-certified periodontist who has been with the Cleveland Clinic since 2013. She earned her dental degree from the Harvard School of Dental Medicine and completed her ...