👉 A periodontist is a dentist who specializes in treating and managing conditions of the gums, including gum disease. Periodontists are trained to diagnose and treat gum problems such as gingivitis, periodontal disease (also known as gum recession), and periapical abscesses. They may also perform root canals and extractions for tooth decay or other dental emergencies. Periodontists often work with oral surgeons to provide comprehensive care of the mouth and jaw.