There are several reasons for pigmented or dark looking gums. Gum depigmentation or bleaching or lightening of gums is a procedure which removes dark areas of the gums. A layer of the gum is removed surgically, which eventually heals with a new pink surface. This could also be performed without pain or blood using lasers, electrocautery, chemicals or cryotherapy. This can lead to a beautiful smile in many an individuals, boosting their self-esteem & confidence.