When teeth begin to look yellow and dingy, some people seek treatments that will improve whiteness. Laser tooth whitening is one of several tooth whitening methods available. Your dentist can help you decide which whitening method is right for you. The American Dental Association recommends that you consult your dentist before deciding which whitening product to use. Dentists usually perform a tooth whitening procedure in their office.
Effectiveness
Laser whitening is more effective than other methods of bleaching the teeth. At-home bleaching products usually contain a bleaching agent with a much lower strength than in-office, professionally applied tooth-whitening agents. According to the University of Maryland Medical Center, the effects of in-office whitening last up to five years while over-the-counter methods last from six months to one year. Whitening toothpastes can only remove surface stains, unlike bleaching methods including laser whitening that change the intrinsic color of the teeth.
Faster
Laser whitening can result in dramatic whitening in just one session, according to the Cleveland Clinic, although several sessions lasting 30 to 60 minutes each may be required to reach the full effect. Products available to use at home, either over-the-counter or dispensed by your dentist, take longer than in-office laser whitening. At-home bleaching dispensed by your dentist and over-the-counter bleaching products usually need to be applied every day for one or two hours or overnight for two to four weeks.
Less Damaging
Softening or weakening of the teeth and gum line can result from bleaching the teeth. The American Dental Association cautions about the improper use of over-the-counter bleaching products, warning that they can be too abrasive and can damage the teeth with extended use. During laser whitening, a neutralizing gel or a rubber shield is placed on the gums to protect gum sensitivity. No over-the-counter bleaching agent carries the ADA Seal of Acceptance, described by the ADA as assuring a product has met ADA standards of safety and effectiveness. Harvard Medical Center warns that very little evidence exists supporting the long-term safety and effectiveness of tooth whitening.
