XPS analysis of the dentin irradiated by Er:YAG laser

Masanori Omae, Yasuo Shinnou, Kumiko Tanaka, Tomoko Abo, Takashi Nakata, Koichiro Suzuki, Yoshinori Hatsuoka, Naohiro Iwata, Kazushi Yoshikawa, Yoshihiro Nishitani, Kazuyo Yamamoto, Masahiro Yoshiyama

研究成果査読

12 被引用数 (Scopus)

抄録

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 (100 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.

本文言語English
ページ(範囲)471-476
ページ数6
ジャーナルDental materials journal
28
4
DOI
出版ステータスPublished - 7月 2009

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 歯学一般

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