Oral Mucosal Melanosis IntechOpen Figure 2 from Oral melanotic macule a case report. Semantic Scholar Indian patient (mid 70s) with chief concern tongue is turning black. Swipe for more photos. These post inflammatory changes are more common in folks with more melanin in their skin. The underlying Physiological oral melanin pigmentation in a South African sample: A clinical study Masilana 2017 Journal of Investigative and Clinical Dentistry Wiley Online Library Dentistry and Medicine: Pigmentation and Discoloration of Oral and Facial Tissues