LASER is an acronym of Light Amplification by the Stimulated Emission of Radiation. Since 1960s, When Maiman used it for the first time in dentistry, laser have evolved their way in the field, where they are been used for several procedures like caries removal, cavity preparations, dental hypersensitivity treatment, etching, composite polymerization, bleaching, canal sterilization, soft tissue and apical surgeries. With these applications, lasers also presents certain advantages like, minimized bleeding yielding good visibility, decreased swelling and postoperative pain, accelerated healing, controlled collateral damage, reduced need for anesthesia. In recent years, with improved understanding of laser-tissue interactions and advancements in technology, laser have spread their applications from diagnosis to preventive procedures, making them an efficient and valuable tool for dental surgeon in near future.

Keywords: LASER Basics; Laser-Tissue Interactions; Applications in Dentistry; Endodontics; Laser.