Oral surgery II: Part 4. Common oral lesions British Dental Journal Common Causes of Dark Spots on Gums Smilepoint Dental Beaumont TX What Causes Black Patches Inside the Mouth and How to Address Them? Your Health Magazine 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 Figure 2 from Amalgam Tattoo Mimicking Mucosal Melanoma: A Diagnostic Dilemma Revisited Semantic Scholar