Oral pigmented lesions: a pragmatic approach to diagnosis and management Faculty Dental Journal ORAL MELANOTIC MACULE (OMM) (Also called focal melanosis labial melanotic macule) A benign, localized, flat pigmented lesion of the oral mucosa Caused by a focal increase in melanin production Figure 2 from Oral pigmentation Semantic Scholar Simple cryosurgical treatment of the oral melanotic macule Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360