中国激光, 2009, 36 (10): 2598, 网络出版: 2009-10-23
Er:YAG激光和Er,Cr:YSGG激光消融牙釉质的阈值研究
Study of the Ablation Threshold of Er:YAG and Er,Cr:YSGG Lased Dental Enamel
激光光学 消融阈值 消融 牙釉质 Cr:YSGG激光 Er:YAG激光 laser optics ablation threshold ablation enamel Er Er Cr:YSGG laser Er:YAG laser
摘要
通过离体牙实验,采用Er:YAG激光和Er,Cr:YSGG激光对人恒牙牙釉质进行消融阈值的实验研究。使用渐增的2-10 J/cm2能量密度对70个牙釉质样本进行辐照,应用体视显微镜和扫描电镜观察辐照后牙釉质表面的形态改变。结果表明,Er:YAG激光和Er,Cr:YSGG激光均能有效地消融牙釉质,Er:YAG激光消融牙釉质的阈值为3.19~4.36 J/cm2,Er,Cr:YSGG激光消融牙釉质的阈值为4.12~4.80 J/cm2。
Abstract
The aim of the study is to evaluate the ablation threshold of enamel of human permanent tooth for Er:YAG laser and Er,Cr:YSGG laser. 70 enamel samples were treated with increasing energy densities of 2~10 J/cm2. The surface changes were assessed by means of reflected light microscope and scanning electron microscope. Both Er:YAG laser and Er,Cr:YSGG laser are effective in ablating human tooth enamel. The ablation threshold value of Er:YAG laser in dental enamel is 3.19~4.36 J/cm2. As to Er,Cr:YSGG laser,the ablation threshold value is 4.12~4.80 J/cm2 .
林实, 彭奇明, 詹振林, 刘清华, 林琪. Er:YAG激光和Er,Cr:YSGG激光消融牙釉质的阈值研究[J]. 中国激光, 2009, 36(10): 2598. Lin Shi, Peng Qiming, Zhan Zhenlin, Liu Qinghua, Lin Qi. Study of the Ablation Threshold of Er:YAG and Er,Cr:YSGG Lased Dental Enamel[J]. Chinese Journal of Lasers, 2009, 36(10): 2598.
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