Extension Without Malignant Changes in Oral Melanotic Macule: A Report of Two Cases and Review of the Literature Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review Dental 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 Pigmented Lesions of the Oral Mucosa Pocket Dentistry Labial melanotic macule Simple cryosurgical treatment of the oral melanotic macule Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics