使用二极管泵浦铒：钇铝石榴石激光选择性去除牙结石。
Selective removal of dental calculus with a diode-pumped Er:YAG laser.
作者信息
Fried William A, Chan Kenneth H, Darling Cynthia L, Fried Daniel
机构信息
University of California, San Francisco, San Francisco, CA 94143-0758.
出版信息
Proc SPIE Int Soc Opt Eng. 2019 Feb;10857. doi: 10.1117/12.2512937. Epub 2019 Feb 28.
Selective removal of dental calculus with high precision is best accomplished using lasers operating at high pulse repetition rates focused to a small spot size to limit damage to sound tissues. Conventional flash-lamp pumped Er:YAG lasers are poorly suited for this purpose, but new diode-pumped solid state (DPSS) Er:YAG lasers have become available operating at high pulse repetition rates. The purpose of this study was to determine if image-guided laser ablation can be used to selectively remove calculus from tooth surfaces with minimal damage to the underlying sound cementum and dentin. A DPSS Er:YAG laser system was used to selectively remove calculus from ten extracted teeth using sequential SWIR images at 1500-1750-nm. The selectivity of removal was assessed using digital microscopy and optical coherence tomography. Calculus was removed with minimal damage to the underlying sound cementum and dentin.
使用高脉冲重复率且聚焦光斑尺寸较小的激光，以高精度选择性去除牙结石，这样能将对健康组织的损伤降至最低。传统的闪光灯泵浦铒钇铝石榴石（Er:YAG）激光不太适合此用途，但新型二极管泵浦固态（DPSS）Er:YAG激光已可实现高脉冲重复率运行。本研究的目的是确定图像引导激光消融是否可用于从牙齿表面选择性去除牙结石，同时对下方的健康牙骨质和牙本质造成最小损伤。使用DPSS Er:YAG激光系统，通过1500 - 1750纳米的连续短波红外（SWIR）图像，从十颗拔除的牙齿上选择性去除牙结石。使用数字显微镜和光学相干断层扫描评估去除的选择性。牙结石被去除，对下方健康牙骨质和牙本质的损伤最小。
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