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Since 1994, lasers have been used in dentistry to treat various dental problems. Despite receiving FDA approval, no laser system has been awarded the American Dental Association's (ADA) Seal of Acceptance as a substitute for traditional treatment.

The ADA is cautiously optimistic about the role of laser technology in dentistry, even though the use of lasers for treating tooth decay, gum disease, biopsy, lesion removal, and teeth whitening is increasing. Lasers deliver light energy to cut or vaporize tissue during surgical and dental procedures, and to strengthen the bond between fillings and teeth or enhance the effect of tooth-bleaching agents during whitening procedures.

Compared to traditional dental drills, lasers can reduce pain and anxiety in patients, minimize bleeding and swelling during soft tissue treatments, and preserve more healthy tooth during cavity removal. However, lasers have some disadvantages, such as being unable to treat teeth with existing fillings or perform certain commonly performed dental procedures, such as filling cavities between teeth, adjusting bites, or polishing fillings. Lasers also cannot replace anesthesia and are more expensive than dental drills.