Dr Alhabil is rightly pointing toward a minimally invasive approach where melanin will be removed without much alteration of gingival tissue. I do agree for an Erbium laser, but can't understand how it is going to work in case of diode lasers, even when high power is used.
Thank you Dr. Alhabil for the reply, i also wanted to know how do you differentiate if the melanin has been removed in non contact mode, how long does it take for the results to be evident?