Laser can be used in dentistry both to treat hard tissue pathologies (caries, whitening, desensitization, endodontics) and for soft tissue pathologies (periodontology, oral surgery, herpes labialis, mouth ulcers). Dental surgeries performed with lasers usage are faster and have little or no bleeding at all, in addition stitches are not necessary, apart from rare cases. In addition they have a very noticeable reduction in post-operative symptoms, often totally absent, thanks to a very thin cut (200-300 microns) and to the high bactericidal power that the laser beam has inherent in its own characteristics. Different kind of lasers are suitable for all oral surgery.