Lasers have drawn a lot of interest and are now widely used in dentistry. The primary benefits of laser systems have drawn the attention of many practitioners and have begun to displace conventional therapy. The discipline of dentistry now has access to more advanced and modern tools that can assist dentists and patients in receiving dental care. New technology project the present day paradigms of dental exercise and could cause good sized shifts in future remedy modes. Laser generation can be used as a diagnostic device for caries detection, resin curing, hollow space coaching, tender and difficult tissue surgical operation and to cope with dentin hypersensitivity. Lasers provide superior results over conventional methods and may help clinician to carry out procedures which may not be possible with routine therapy with good results. This article highlight the basic scientific and review on lasers in dentistry with special emphasis on applications in Pediatric Dentistry.