MISC

2005年

Study on irradiation of wavelength-modified CO2 laser for tissue engineering - Cutting efficiency of human dentin-.

J Oral Tissue Engin
  • YOSHIKAWA K
  • ,
  • IKEO T
  • ,
  • AWAZU K
  • ,
  • INOUE M
  • ,
  • YAMAMOTO K

3
2
開始ページ
80
終了ページ
86
記述言語
英語
掲載種別
DOI
10.11223/jarde.3.80
出版者・発行元
日本再生歯科医学会

In this study, the wavelength of a CO_2 laser was modified to 9.45 μm (Modi-CO_2 laser) and the cutting efficiency of Modi-CO_2 laser was evaluated. We used the freshly extracted human molars without carious regions. The dentin surface of the thawed teeth was polishing with alumina (0.05 mm). Modi-CO_2 laser was irradiated by TEA-CO_2 laser. Modi-CO_2 laser was irradiated on the polished dentin surface under the irradiation conditions of 1 MW/pulse and 1, 5, 10 and 50 pulses. The pulse width of one pulse was set to 100 ns. The Modi-CO_2 laser-irradiated dentin surfaces were Au-spattered and were observed by an electron surface roughness analyzer. The volume lost by the irradiation of the laser was calculated from the diameter and the depth of cavity. The relationship between the lost volume and the irradiation energy was statistically analyzed by one-way ANOVA and Scheffe's test (p<0.05). No measurable loss of dentin was detected with Modi-CO_2 laser-irradiation of 1 and 5 pulses. The lost volumes of dentin with 10 and 50 pulses were 143333 and 342333 mm^3. The lost volume by the irradiation of Modi-CO_2 laser significantly increased with an increase of the pulse of Modi-CO_2 laser.

リンク情報
DOI
https://doi.org/10.11223/jarde.3.80
CiNii Articles
http://ci.nii.ac.jp/naid/110006263678
CiNii Books
http://ci.nii.ac.jp/ncid/AA1195240X
URL
https://jlc.jst.go.jp/DN/JALC/00274546877?from=CiNii
URL
http://search.jamas.or.jp/link/ui/2006295980
ID情報
  • DOI : 10.11223/jarde.3.80
  • ISSN : 1348-9623
  • ISSN : 1880-0823
  • CiNii Articles ID : 110006263678
  • CiNii Books ID : AA1195240X

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