inflammation of the mucous membrane of the mouth
Stomatitis Stomatitis is inflammation of the mouth and lips.[1] It refers to any inflammatory process affecting the mucous membranes of the mouth and lips, with or without oral ulceration.[2]
Periodontitis Periodontitis, also known as gum disease and pyorrhea, is a set of inflammatory diseases affecting the tissues surrounding the teeth. Periodontitis involves progressive loss of the alveolar bone around the teeth, and if left untreated, can lead to the loosening and subsequent loss of teeth.