A laser is a device which converts light of various frequencies into a chromatic radiation in the visible, infrared, and ultraviolet regions with all the waves in phase capable of mobilizing intense heat and power when focused at a close range. Laser in the field of dentistry, has overcome the shortcomings, which are presently being practiced in conventional dental treatment procedures. The intraoral use of lasers has progressed over the last few decades as clinical experience along with scientific investigation, has increased information. This book presents an overview of a wide range of applications in the field of dentistry.