[摘要]Er：YAG激光属于中红外线激光，是新一代水动力生物激光系统，拥有适合切除口腔软硬组织的特点，与传统治疗方法相比具有许多优点，可减轻治疗过程中的不适感和疼痛，患者更易接受。因铒激光在牙科治疗中的研究和应用的不断深入，本文对其工作原理及其在口腔治疗中的优势和应用进行综述。

    [关键词]Er：YAG激光；工作原理；口腔治疗

    [中图分类号]R 780.1[文献标识码]A[doi]10.3969/j.issn.1673-5749.2012.06.025

    The applications of Er：YAG laser in Oral ScienceChen Minle, Ding Jiangfeng, Jiang Qianzhou, He Yijiang.(Dept. of Conservative Dentistry and Endodontics, Hospital of Stomatology, Guangzhou Medical College, Guangzhou 510140, China)

    [Abstract]Er：YAG laser is a new type of laser-powered hydrokinetic system belonging to middle infrared lasers, which has the suitable characteristics of oral soft tissues resection. In contrast with the traditional method, Er：YAG laser has many advantages, including ease pain and discomfort in the course of treatment, which the patients are more likely to accept. Er：YAG laser is being gradually studied and applied for dentistry. The article summarized the working principle of Er：YAG laser, as well as the advantages and application in oral therapy.

    [Key words]Er：YAG laser；working principle；oral therapy!!!!Er：YAG(铒：钇、铝、石榴石)激光是一种水动力生物激光系统 ......