Applications for and research on lasers in dentistry continues to expand since their introduction to the dental profession.Over time, understanding of lasers has grown among researchers and the lasers themselves have become smaller and better suited to dental tasks, eventually making them accurate and safe enough for procedural use. Lasers (an acronym for "light amplification by the stimulation emission of radiation") deliver energy and heat in the form of light, and their uses in dentistry range from cleaning to removing tooth decay.This book is aimed to give an overview of the lasers used in dentistry from its functioning to its uses.