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

doi:10.4012/dmj.28.471

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

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	471-476
Number of pages	6
Journal	Dental materials journal
Volume	28
Issue number	4
DOIs	https://doi.org/10.4012/dmj.28.471
Publication status	Published - Jul 2009

Keywords

Dentin
Er:YAG laser
XPS

ASJC Scopus subject areas

Ceramics and Composites
Dentistry(all)

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10.4012/dmj.28.471

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title = "XPS analysis of the dentin irradiated by Er:YAG laser",

abstract = "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.",

keywords = "Dentin, Er:YAG laser, XPS",

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

year = "2009",

month = jul,

doi = "10.4012/dmj.28.471",

language = "English",

volume = "28",

pages = "471--476",

journal = "Dental materials journal",

issn = "0287-4547",

publisher = "Japanese Society for Dental Materials and Devices",

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T1 - XPS analysis of the dentin irradiated by Er:YAG laser

AU - Omae, Masanori

AU - Shinnou, Yasuo

AU - Tanaka, Kumiko

AU - Abo, Tomoko

AU - Nakata, Takashi

AU - Suzuki, Koichiro

AU - Hatsuoka, Yoshinori

AU - Iwata, Naohiro

AU - Yoshikawa, Kazushi

AU - Nishitani, Yoshihiro

AU - Yamamoto, Kazuyo

AU - Yoshiyama, Masahiro

PY - 2009/7

Y1 - 2009/7

N2 - 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.

AB - 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.

KW - Dentin

KW - Er:YAG laser

KW - XPS

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XPS analysis of the dentin irradiated by Er:YAG laser

Abstract

Keywords

ASJC Scopus subject areas

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