Dermatol Online J 2021 Aug 15;27(8). Epub 2021 Aug 15.
Oral Pathology, Department of Stomatology, Public Oral Health, and Forensic Dentistry, Ribeira~o Preto Dental School (FORP/USP), University of Sa~o Paulo, Riberão Preto, Sa~o Paulo, Brazil.
Oral pigmented lesions can be physiological or pathological, exogenous or endogenous, as well as focal, multifocal, or diffuse. Among them, the oral melanotic macule (OMM) is a small, well-delimited brown-to-black macule, often affecting the lip and gingiva. Amalgam tattoo (AT) is a grey or black area of discoloration on the oral mucosa as a result of entry of dental amalgam into the soft tissues, commonly gingiva and alveolar ridge. Read More