Frequently optimal aesthetic results are lessened by superficial discolorations that can be removed by a dental cleaning. If the discolorations are in the tooth substance they can be removed by various bleaching techniques that lighten the color of the natural teeth. Furthermore, stains that have accumulated over the course of time in the outer layers of the enamel can be removed without damaging the tooth. Occasionally temporary sensitivity to hot and cold can occur after bleaching. Rinsing with fluoride solutions or applying gels help to reduce these sensitivities.

Bleaching is done either chairside or at home. The method used is decided upon depending upon the case at hand.

Chairside bleaching occurs in the dental practice and the bleaching gel is applied to the surface of the teeth and is let set for 20 minutes. This application is repeated up to three times.

For hom- bleaching a thin transparent retainer is made for the patient. In the course of 7 to 14 days the gel is applied to the teeth via the retainer for up to one hour per day. The patient can monitor the bleaching progress daily and can decide to which degree to continue.