Gum contouring is generally considered a cosmetic procedure, involving reducing the size of the gum to improve the appearance of the smile. Gum reshaping is also a good option for those with an uneven gum line.  Starting at $25, gum contouring is generally a quick and pain-free procedure with a quick recovery time. In addition, this can be done in a single session, with permanent results that do not require return trips to the dentist.