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Proceedings Paper

Optimal irradiation condition of demineralized dentin treatment with a nanosecond pulsed laser at 5.8 μm wavelength range
Author(s): Katsunori Ishii; Masayuki Saiki; Tetsuya Kita; Kazushi Yoshikawa; Kenzo Yasuo; Kazuyo Yamamoto; Kunio Awazu
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Paper Abstract

Conventional dental lasers have not realized a selective excavation of carious dentin. Objective of this study is to determine the optimal irradiation condition for the selective excavation by using a wavelength around 5.8 μm. A nanosecond pulsed laser with a wavelength of 5.8 μm was obtained by difference-frequency generation technique. The laser delivers 5 ns pulse width at a repetition rate of 10 Hz. 5.8 μm wavelength range, a short wavelength required high excavation energy and a long wavelength required low excavation energy to induce the selective excavation with a low thermal side effect. 5.8 μm wavelength provides a selective excavation technique for minimal intervention.

Paper Details

Date Published: 8 May 2012
PDF: 5 pages
Proc. SPIE 8427, Biophotonics: Photonic Solutions for Better Health Care III, 84273U (8 May 2012); doi: 10.1117/12.922868
Show Author Affiliations
Katsunori Ishii, Osaka Univ. (Japan)
Masayuki Saiki, Osaka Univ. (Japan)
Tetsuya Kita, Osaka Univ. (Japan)
Kazushi Yoshikawa, Osaka Dental Univ. (Japan)
Kenzo Yasuo, Osaka Dental Univ. (Japan)
Kazuyo Yamamoto, Osaka Dental Univ. (Japan)
Kunio Awazu, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 8427:
Biophotonics: Photonic Solutions for Better Health Care III
Jürgen Popp; Wolfgang Drexler; Valery V. Tuchin; Dennis L. Matthews, Editor(s)

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