Evaluation of the efficacy of LED-laser treatment and control of tooth sensitivity during in-office bleaching procedures.

Objective: This study determined the efficacy of LED-laser treatment and the control of sensitivity caused by in-office bleaching.

Background Data: Auxiliary power sources (halogen light, arc plasma, LED, LED-laser, and laser) are used in in-office teeth bleaching techniques to accelerate the redox reaction of the whitening gel to increase ease of use, to improve comfort and safety, and to decrease the procedure time.

Methods: Sixteen volunteers participated in this randomized, blinded and split-mouth clinical study.