Glossitis Geographic tongue, also termed benign migratory glossitis, is a common condition which usually affects the dorsal surface of the tongue. It is characterized by patches of depapillation and erythema bordered by a whitish peripheral zone. These patches give the tongue the appearance of a map, hence the name. Unlike glossitis due to nutritional deficiencies and anemia, the lesions of geographic tongue move around the tongue over time. This is because in geographic tongue, new areas of the tongue become involved with the condition whilst previously affected areas heal, giving the appearance of a moving lesion. The cause is unknown, and
University of Pennsylvania School of Dental Medicine such areas as oral microbiology and virology, inflammation and immunity, tooth development, and the use of analgesics and sedatives, to the cellular biology of connective tissues and bone, the applications for state-of-the-art dental materials, and the causes and effects of periodontal disease. Interdisciplinary research is a hallmark of the University of Pennsylvania, and Penn Dental Medicine investigators collaborate extensively with faculty throughout the Penn campus. University of Pennsylvania School of Dental Medicine The University of Pennsylvania School of Dental Medicine (often referred to as Penn Dental Medicine or simply Penn Dental) is the dental school of the University of Pennsylvania