Pigmented Lesions of the Oral Mucosa Pocket Dentistry COM August 2004 Diagnosis UW School of Dentistry Gum Hyperpigmentation: When to Seek Help? Oral Melanotic Macule An Unusual Occurrence In Gingiva Journal of Health and Allied Sciences NU 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 Pigmented lesions of the oral mucosa and perioral : Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, & Endodontics