Oral Melanotic Macule: Symptoms and Treatment Skinsight Multifocal pigmentation of the oral mucosa The Journal of the American Dental Association Pigmented Lesions of the Oral Mucosa Pocket Dentistry JaypeeDigital eBook Reader 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 Mucosal melanocytic macules