Spectroscopic characterization of enamel surfaces irradiated with Er:YAG laser
Spectroscopic characterization of enamel surfaces irradiated with Er:YAG laser
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DOI：
10.4012/dmj.25.214
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发表时间：
2006-06-01
影响因子：
2.5
通讯作者：
Kuboki, Takuo
中科院分区：
文献类型：
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作者：
Mine, Atsushi;Yoshida, Yasuhiro;Kuboki, Takuo
本研究的目的是用光谱学方法研究激光照射对釉质表面的影响。用Er：YAG激光照射抛光的牛牙釉质表面，并用X射线光电子能谱(XPS)对其进行化学分析。XPS检测到对照牙釉质表面的碳(Cls)、氮(Nls)、钙(Ca2s、Ca2p、Ca3s、Ca3p)、磷(P2s、P2p)和氧(Ols)等核心电子峰。X射线光电子能谱(XPS)显示，Cls峰的强度略有下降，而Nls峰的强度在检测下限以下有所减弱。Er：YAG激光照射牙釉质表面的详细Cls窄扫描光谱显示，由于牙釉质的特定成分和任何常见的碳污染，C-O/C-N，C=O/-CON=，-COO-和CO32-组分相对减少。激光牙釉质与非激光牙釉质的钙磷结合能、Delta(Ca2p，P2p)及钙磷比均不同。实验还表明，Er：YAG激光对牙齿组织中磷灰石无机成分的表面造成了改变。
The purpose of this study was to investigate the effect of laser irradiation on the enamel surface spectroscopically. Polished bovine enamel surface was irradiated with an Er:YAG laser apparatus and chemically analyzed using X-ray photoelectron spectroscopy (XPS). XPS detected core electron peaks such as carbon (C ls) and nitrogen (N ls), as well as calcium (Ca 2s, Ca 2p, Ca 3s, Ca 3p), phosphorous (P 2s, P 2p), and oxygen (O ls), from the control enamel surface. After irradiation, XPS revealed that the intensity of C ls peak slightly decreased while that of N ls diminished below the detection limit. Detailed C ls narrow scan spectrum of the Er:YAG laser-irradiated enamel surface showed that C-O/C-N, C=O/-CON=, -COO-, and CO32- components, attributed to the specific composition of enamel and any common carbon contamination in surplus, relatively decreased. The binding energies of Ca 2p and P 2p, Delta (Ca 2p, P 2p), and the Ca/P ratio of lased enamel were found to be different from those of non-lased enamel. It was also shown that Er:YAG laser ablation caused surface alterations to the apatitic inorganic components of tooth tissue.