erythema: Definition, Uses, and Clinical Overview
erythema means visible redness of tissue caused by increased blood flow near the surface. In dentistry, erythema is most often noted on the gums (gingiva) or oral lining (mucosa). Clinicians use the term to describe a sign they can see, not a diagnosis by itself. Patients may notice it as “red, irritated, or inflamed-looking” areas in the mouth.