波長2.94 μmのナノ秒パルスレーザーによる脱灰象牙質の選択的切削

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  • Selective Removal of Demineralized Dentin by Nanosecond-Pulsed Laser at Wavelength of 2.94 μm
  • ハチョウ 2.94mm ノ ナノビョウ パルスレーザー ニ ヨル ダッカイ ゾウゲシツ ノ センタクテキ セッサク

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Less-invasive methods are required for caries treatment. Our previous study achieved the selective removal of demineralized dentin by the irradiation of a nanosecond-pulsed laser at wavelengths of around 6 μm, which are the absorption wavelengths of organic materials, without water spray. Absorption bands also originated from the organic materials at around 3 μm. This study investigated the ablation property by a nanosecond-pulsed laser at a wavelength of 2.94 μm without water spray. We also compared our new laser method with a conventional Er:YAG laser. As a result, the selective removal of demineralized dentin was observed by both lasers, and the thermal effect by nanosecond-pulsed-laser irradiation was less than that of the Er:YAG laser. We believe that a nanosecond-pulsed laser at a wavelength of 2.94 μm is effective for the selective removal of carious dentin.

収録刊行物

  • レーザー研究

    レーザー研究 44 (3), 182-, 2016

    一般社団法人 レーザー学会

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