Menu Healthy Lifestyle Diseases & Conditions First Aid Symptoms Tests & Procedures Videos Definitions FAQs Periodontal diseaseUpdated: 2017-06-13OverviewPeriodontal pathology is disease of the gums and tissue supporting the teeth. It starts as a bacteria-laden film on teeth (plaque). It can progress to gum inflammation (gingivitis). Finally, it may lead to a breakdown of the surrounding tissue and bones (periodontitis). Prevention with daily brushing and regular dental checkups is key. © 1998-2022 Mayo Foundation for Medical Education and Research(MFMER). All rights reserved. Terms of Use