Light amplification and stimulated emission of radiation techniques have been introduced in both medicine and science. Currently many lasers are available which are very efficient for dental soft and hard tissues. To achieve the desirable results, knowledge of laser technology such as power of particular type of lasers, its wavelength, and the time for which the particular laser is used. Lasers are mainly preferred because it prevents bleeding, is pain free and there is no need of intervention and saves valuable time of both patients and specialist, lasers are currently being used for alteration in conventional enamel etching and dentine bonding procedures during composite restorations, laser technology has made an advancement in orthodontics it has known to accelerate the movement of teeth to be moved, lasers are also used for removing the brackets and other bonding procedures, many researchers claim that this technology can also be used for implant procedures like it will increase the stability and strength of implant, reduction in demineralisation of enamel during various procedures. Lasers are mainly used in field of orthodontics which has resulted in better patient co-operation due to reduced pain and discomfort and is also convenient for the operator. Along with the advantages that lasers offer they are associated with few disadvantages. Lasers are relatively higher in prices than conventional equipments, for treating the patients with this modern technology the operator must be specially trained. If not used properly it can cause deleterious effects on tissues. This review article is about various dental lasers, effects of lasers on tissues and clinical and nonclinical applications and laser safety.