XPS analysis of the dentin irradiated by Er:YAG laser

被引：12

作者：

Omae, Masanori ^{[1
]}

Shinnou, Yasuo ^{[1
]}

Tanaka, Kumiko ^{[1
]}

Abo, Tomoko ^{[1
]}

Nakata, Takashi ^{[1
]}

Suzuki, Koichiro ^{[2
]}

Hatsuoka, Yoshinori ^{[2
]}

Iwata, Naohiro ^{[2
]}

Yoshikawa, Kazushi ^{[2
]}

Nishitani, Yoshihiro ^{[1
]}

Yamamoto, Kazuyo ^{[2
]}

Yoshiyama, Masahiro ^{[1
]}

机构：

[1] Okayama Univ, Dept Operat Dent, Grad Sch Med Dent & Pharmaceut Sci, Okayama 7008525, Japan

[2] Osaka Dent Univ, Dept Operat Dent, Hirakata, Osaka 5731121, Japan

来源：

DENTAL MATERIALS JOURNAL | 2009年 / 28卷 / 04期

关键词：

XPS; Dentin; Er:YAG laser; ER-YAG-LASER; BOND STRENGTH; HARD SUBSTANCES; SEM EVALUATION; BOVINE DENTIN; HUMAN TEETH; ENAMEL; RESIN; COMPOSITE; ABLATION;

D O I：

10.4012/dmj.28.471

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The aim of this study was to investigate the effect of Er:YAG laser irradiation on human dentin surface using X-ray photoelectron spectroscopy (XPS). 10 human dentin disks were prepared from extracted human molars for XPS analysis. These specimens were divided into two groups of five: a control group and group that were irradiated by an Er:YAG laser beam (1.00 mJ, 1Hz). All specimens were analyzed by XPS over a wide scanning range and narrow scanning ranges. The Ca/P ratio was calculated from the XPS results. In the results, the binding energies of Ca, P, and N in the laser-irradiated group were higher than those in the control group. The Ca/P ratio of the Er:YAG laser irradiated group (1.24 +/- 0.05) was significantly lower than that of the control group (1.52 +/- 0.16). This study showed that Er:YAG laser irradiation decreased Ca/P ratio and denatured the collagen of human dentin.

引用

页码：471 / 476

页数：6

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