JaypeeDigital eBook Reader Multifocal Pigmentation of the Oral Cavity The Journal of the American Dental Association 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 Mucosal Melanoma of the Hard Palate: Surgical Treatment and Reconstruction Melanocytic Lesions A Guide to Clinical Differential Diagnosis of Oral Mucosal Lesions Continuing Education Course dentalcare.com