Novel Aspects of Dental Laser and Tissue Interaction

Abstract

It is very important to prevent decalcification and loss of dental substance on tooth surfaces, as occurs in dental cavities. Various treatment procedures have been proposed for this purpose. One of the most prominsing methods is an improvement of the tooth surface using laser, irradiation to render it resistant to acid. Tuning a laser wavelength to the stretching vibration of specific bio-molecules has some advantages in ablating hart tissue and surface modification induced by the photo-thermal or photo-mechanical interaction. The radiation can be realized by Er: YAG laser, CO₂ laser and free Electron Laser in the infrared region. This procedure has been used widely for multiple purposes and its clinical outcome has been assessed. In this paper, I summarize the basis of laser tissue interaction to the surface phenomena of dentine.