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Copyright of Revista ADM is the property of Asociacion Dental Mexicana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista ADM is the property of Asociacion Dental Mexicana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction. This disease was described in 1970, by Laugier and Hunziker. At present it is considered a benign pathology, of unknown etiology. With presentation of lenticular macules, dark brown to black, usually appears on lips, jugular mucosa and palate. Clinical case. A 72-year-old female patient, who goes to the clinic to extract root debris. On exploration, the presence of extensive melanotic lesions covering the entire oral mucosa is surprising. The patient reports that she has always presented these lesions. [ABSTRACT FROM AUTHOR]