Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review Gingival Pigmentation Removal With a High Power Diode Laser in Non contact Mode: A Proposed Technique With Two Years of Follow Up Cureus Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360 An oral melanotic macule is a harmless dark spot found on the lip, most often the lower lip, or inside the mouth, either on the gums, inside the cheek, or on the roof of the mouth. An oral melanotic