Comparison of laser and power bleaching techniques in tooth color change.

Background: Laser-assisted bleaching uses laser beam to accelerate release of free radicals within the bleaching gel to decrease time of whitening procedure. The aim of this study was to compare the efficacy of power bleaching using Opalescence Xtra Boost® and laser bleaching technique using LaserSmile gel and diode laser as an activator in their tooth whitening capacity.

Material And Methods: Student t test showed that the laser bleaching group significantly outperformed the power bleaching group in changing ∆E (=0.