LASERS have a crucial significance in dental field to overcome some of the disadvantages offered by that of the conventional armamentarium such as drilling sound, anxiety, fear related to conventional handpiece etc. Lasers can be used on both soft and hard tissues and over the time it has proved amenable results. Therefore, modern concepts based on minimal invasive dentistry led to application of Lasers in various fields of dental care. Despite of its Pros and Cons, its advantages makes Laser a ray of hope for the dentistry. This book encompasses the application of Lasers in different aspects of Conservative Dentistry and Endodontics. The text book has simple and easy language and its contents has been taken from various standard journals, textbooks, e-books, website etc.