从1964年开始,Er:YAG激光在口腔医学领域的应用研究日渐增多,因此越来越被人们所重视~([1,2])。近年来的研究表明,Er:YAG激光对种植体周围炎的治疗具有显著的优势。一、Er:YAG激光的工作原理Er:YAG激光辐射跃迁出现在Er~(3+)离子的~4I_(11/2)态和~4_I(13/2)态之间,是一种波长为2.94μm的固体脉冲激光,其波长恰好位于水(3μm)和羟基磷灰石OH-(2.8μm)的最高吸收峰值附近,激光能量能被水 Since 1964, Er: YAG laser has been applied more and more in the field of stomatology, so it has been paid more and more attention by people ([1,2]). In recent years, studies have shown that Er: YAG laser treatment of peri-implantitis has a significant advantage. First, the working principle of Er: YAG laser Er: YAG laser radiation transition appears in Er ~ (3 +) ions between ~ 4I_ (11/2) and ~ 4_I (13/2) state, 2.94μm solid pulsed laser whose wavelength happens to be located near the highest absorption peak of water (3μm) and hydroxyapatite OH- (2.8μm), the laser energy can be absorbed by water