Tooth whitening is a cosmetic procedure that restores brightness to teeth, producing potentially dramatic results in about four weeks. Although both at-home and in-office treatments exist, Dr. Andrews generally prefers the at-home whitening method. Proven to be as effective as in-office treatments, at-home whitening costs less and does not cause the sensitivity associated with in-office treatment. Dr. Andrews provides custom-made trays and peroxide gel for at-home whitening. The process, which gained popularity in the 1980’s, was pioneered by Dr. Andrews’ former professor and dentist, Dr. Van Haywood.