DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Dental sinus. Close-up of an intraoral dental sinus (centre) on the upper gum of a 67-year-old male patient. A dental sinus (also parulis or gumboil) is an oral lesion made up of inflamed granulation tissue and an accompanying dental abscess. It is usually the site where a dental infection drains onto the surface.
Model release not required. Property release not required.