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 Dark pigmentation in the oral cavity Clinical Advisor Pigmented lesions of the oral mucosa and perioral tissues: a flow chart for the diagnosis and some recommendations for the management Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics Gingival pigmentation (cause, treatment and histological preview) ScienceDirect A and B) Clinical appearance of a melanotic mandibular gingival lesion Download Scientific Diagram