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Er:YAGレーザによる歯質の除去特性: 注水による気泡の発現と効果
- フォーマット:
- 論文
- 責任表示:
- 古本, 達明 ; 中谷, 馨 ; 林, 鉄也 ; 上田, 隆司 ; 細川, 晃 ; 田中, 隆太郎
- 言語:
- 日本語
- 出版情報:
- 日本機械学会 Japan Society of Mechanical Engineers, 2012-01-01
- 著者名:
古本, 達明 中谷, 馨 林, 鉄也 上田, 隆司 細川, 晃 田中, 隆太郎 - 掲載情報:
- 日本機械学會論文集. C編 = Transactions of the Japan Society of Mechanical Engineers. C
- ISSN:
- 0387-5024
- 巻:
- 78
- 通号:
- 794
- 開始ページ:
- 3594
- 終了ページ:
- 3604
- バージョン:
- author
- 概要:
- This paper deals with the removal characteristics of dental hard tissues by irradiation of a pulsed En:YAG laser beam with a wavelength of 2940 nm. The influence of water-layer thickness on the cavity preparation is experimentally investigated. As a specimen, extracted human tooth is used and the laser beam is irradiated to its surface through the optical fiber. Additionally, the phenomenon of the laser beam irradiation in the water environment is observed … with a high speed video camera. As a result, the irradiated laser beam in water environment is immediately absorbed to water, and the evaporated area could make it possible to transmit the laser beam without any absorption. The removal volume on human tooth in water environment was increased with increasing the irradiated laser energy, and decreased with increasing the water-layer thickness. There were no thermal damages on the cavity surface in each condition. The eliminated volume in water environment was quite larger than that in air environment. The human tooth in water environment was eliminated by the bubble formation which was caused by laser beam irradiation in addition to the ablation of human tooth which was caused by the absorption of laser beam directly. © 2012 The Japan Society of Mechanical Engineers. 続きを見る
- URL:
- http://hdl.handle.net/2297/33425
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精密工学会 = The Japan Society for Precision Engineering |
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