DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Dental abscess. Seventy-one year old woman with a swollen jaw due to a dental abscess. A dental abscess is a pus-filled sac in the tissue around the root of a decaying tooth. It occurs when bacteria, commonly Staphylococcus bacteria, infect the living tissue within a tooth and then spread to the surrounding area. Treatment is with drainage of the abscess, a course of antibiotics and either filling the tooth cavity or extracting the tooth.
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