Experimental Study of FEL Irradiation onto Human Enamel and Dentin(International Symposium of Maxillofacial and Oral Regenerative Biology in Okayama 2005)

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概要

• 論文の詳細を見る

• Wavelength tunable Free Electron Laser, FEL, was irradiated onto the polished surfaces of human tooth enamel and dentin using the FEL system at Laboratory for Electron Beam Research and Application (LEBRA) in Nihon University. LEBRA-FEL system was so powerful that only 2 mJ/pulse shot resulted in an apparent pit on the surfaces. The pit showed neither marked scorch nor formation of secondary crystalline phase revealed by micro-XRD and micro-FTIR. Optimum wavelength for pit formation on the dental hard tissues was about 3.0mm. However, the optimum wavelengths for enamel and dentin should be at 3.2mm, 3.0mm, respectively. The results strongly suggested that the ablation mechanism by laser irradiation for dental hard tissues might be not the simple interaction of laser beams with water, but complex phenomena, which could not be neglected of the hard tissue components and structure.

• 硬組織再生生物学会の論文

著者

• Sato Y.

  Department of Ischemic Circulatory Physiology, Kaatsu Training, The University of Tokyo

• Legeros R.z.

  Department Of Biomaterials And Biomimetics College Of Dentistry New York University

• Kuwada T.

  Lebra Laboratory For Electron Beam Research And Application Nihon University

• Sakae T.

  Department of Anatomy School of Dentistry at Matsudo, Nihon University

• Tanimoto Y.

  Department of Dental Materials School of Dentistry at Matsudo, Nihon University

• Ookubo A.

  Department of Anatomy School of Dentistry at Matsudo, Nihon University

• Okada H.

  Department of Pathology School of Dentistry at Matsudo, Nihon University

• Hayakawa Y.

  LEBRA, Laboratory for Electron Beam Research and Application, Nihon University

• Tanaka T.

  LEBRA, Laboratory for Electron Beam Research and Application, Nihon University

• Hayakawa K.

  LEBRA, Laboratory for Electron Beam Research and Application, Nihon University

• Sato I.

  LEBRA, Laboratory for Electron Beam Research and Application, Nihon University

• Ookubo A.

  Department Of Anatomy School Of Dentistry At Matsudo Nihon University

• Tanimoto Y.

  Department Of Dental Materials School Of Dentistry At Matsudo Nihon University

• Okada H.

  Deparment of Fermentation Technology, Osaka University

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