龋齿是一种很普遍的口腔疾病,它不仅破坏人们的咀嚼器官,还会引起多种疾病。多年来对于龋齿仅限于病损后的治疗,却无有效易行的预防手段。随着激光技术及其在医学应用上的迅速发展,提出了激光防龋的设想。早期的试验主要着重于激光辐照对牙釉质、牙本质和牙髓的效应,探索和验证激光防龋机理及其可能性。美国、日本、西德先后用红宝石激光、CO_2激光、YAG激光作了上述实验。均认为激光防龋是可能的。北京地区激光防龋协作组自1978年以来用YAG激光作了大量离体牙及 Dental caries is a common oral disease that not only damages people’s chewing organs but also causes many diseases. Over the years for the treatment of dental caries is limited to lesions, but no effective and easy to prevent. With the rapid development of laser technology and its application in medicine, the concept of laser anti-caries is proposed. Early experiments focused on the effects of laser irradiation on enamel, dentin and pulp, exploring and verifying laser anti-caries mechanisms and their potential. The United States, Japan, West Germany has ruby ​​laser, CO_2 laser, YAG laser made the above experiment. It is considered laser anti-caries is possible. Beijing area laser anti-caries collaborative team since 1978 with YAG laser made a lot of isolated teeth and