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History of Dental LasersThirty years ago when lasers were first considered for dental use, it was thought they would replace the mechanical drills used to remove cavities. In 1964 lasers were reported to vaporize dental enamel using a pulsed ruby laser. The first lasers approved for dental uses procedures involved soft tissue surgery and procedures including gingivectomy, frenectomy, curettage, crown lengthening, biopsy, and other gingival procedures. These lasers included the carbon dioxide lasers, Nd:YAG (neodymium:yttrium-aluminum-garnet), argon, and diode lasers. Today the argon laser has been cleared for curing of commonly used tooth colored fillings in the mouth and bleaching. The most recently approved laser for dental use is the Erb:YAG laser cleared for use on soft and hard tissues of the mouth, including cavity repairs of teeth. Advantages of the laser included control of bleeding, accuracy of cutting, reduced pain, and bacterial reduction.
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