Cosmetic dentistry London has been making advances in the past decade due to a sudden improvement in the science and technology. London Dentist have the most advanced technology which is applied in the field of cosmetic dentistry. Light amplification by stimulant emission of radiation or simply Laser has brought about a revolution in cosmetic dentistry. Laser has minimized the problems faced by the patients during the treatment and has also minimized the duration of the treatment resulting in raising the comfort ness of the patient. It also yields very good results as compared to any other cosmetic dentistry techniques.In some treatments, Laser is aimed to the area in the gums where the blood is clotted which sterilizes the wound and also removes the clot. This is far better than drilling the gums with tools and then treating the clot. In some processes laser is used as a teeth whitening process. A special gel is applied to the teeth and then laser is applied to the teeth. The laser fastens the process of whitening of the teeth. Sometimes, people want to change the shape of their gums as they are not happy with their present shape. For this purpose lasers are used on a wide scale. On the whole, laser have contributed a lot to the dentistry techniques.