This is a picosecond laser treatment of labial melanotic macules on the gingiva. Note the green flashes of the 532 nm laser as well as the immediate tissue whitening of the treated area. This Mucosal melanocytic macules Oral melanoacanthoma and oral melanotic macule: a report of 8 cases, review of the literature, and immunohistochemical analysis Oral Melanosis Dental Update Malignant oral melanoma: how to spot it and how it is managed Dental Update Differential diagnoses of solitary and multiple pigmented lesions of the oral mucosa: Evaluation of 905 specimens submitted to histopathological examination Tavares 2021 Head & Neck Wiley Online Library