XPS analysis of the dentin irradiated by Er

YAG laser

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

Research output: Contribution to journalArticle

8 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 languageEnglish
Pages (from-to)471-476
Number of pages6
JournalDental Materials Journal
Volume28
Issue number4
DOIs
Publication statusPublished - Jul 2009

Fingerprint

Photoelectron Spectroscopy
Solid-State Lasers
Dentin
X ray photoelectron spectroscopy
Lasers
Laser beam effects
Control Groups
Scanning
Binding energy
Collagen
Laser beams

Keywords

  • Dentin
  • Er:YAG laser
  • XPS

ASJC Scopus subject areas

  • Dentistry(all)
  • Ceramics and Composites

Cite this

XPS analysis of the dentin irradiated by Er : YAG laser. / Omae, Masanori; Shinno, Yasuo; Tanaka, Kumiko; Abo, Tomoko; Nakata, Takashi; Suzuki, Koichiro; Hatsuoka, Yoshinori; Iwata, Naohiro; Yoshikawa, Kazushi; Nishitani, Yoshihiro; Yamamoto, Kazuyo; Yoshiyama, Masahiro.

In: Dental Materials Journal, Vol. 28, No. 4, 07.2009, p. 471-476.

Research output: Contribution to journalArticle

Omae, M, Shinno, Y, Tanaka, K, Abo, T, Nakata, T, Suzuki, K, Hatsuoka, Y, Iwata, N, Yoshikawa, K, Nishitani, Y, Yamamoto, K & Yoshiyama, M 2009, 'XPS analysis of the dentin irradiated by Er: YAG laser', Dental Materials Journal, vol. 28, no. 4, pp. 471-476. https://doi.org/10.4012/dmj.28.471
Omae, Masanori ; Shinno, Yasuo ; Tanaka, Kumiko ; Abo, Tomoko ; Nakata, Takashi ; Suzuki, Koichiro ; Hatsuoka, Yoshinori ; Iwata, Naohiro ; Yoshikawa, Kazushi ; Nishitani, Yoshihiro ; Yamamoto, Kazuyo ; Yoshiyama, Masahiro. / XPS analysis of the dentin irradiated by Er : YAG laser. In: Dental Materials Journal. 2009 ; Vol. 28, No. 4. pp. 471-476.
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