Pigmented Lesions of the Oral Mucosa Pocket Dentistry Macular Pigmented Oral Mucosal Lesions: An Amalgam Tattoo Case Report Dentistry Today 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 Aesthetic Depigmentation of Gingival Smoker's Melanosis Using Carbon Dioxide Lasers