Study on Selective-caries-removal with Er:YAG Laser using Caries-detecting-dye-solutions
| Project/Area Number |
23592819
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Conservative dentistry
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| Research Institution | Osaka Dental University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
AWAZU Kunio 大阪大学, 工学(系)研究科(研究院), 教授 (30324817)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | レーザー歯学 / 齲蝕 / 選択的除去 / う蝕 / 歯学 / レーザー / う蝕検知液 / PDT |
|---|
| Research Abstract |
In Japan, a caries lesion is stained using a caries detector, followed by removing the lesion using a spoon excavator to preserve caries-affected dentin. However, this procedure is difficult depending on the caries area and size. We have been conducting research to remove caries selectively in an easy and accurate way. An experimental caries detector was dropped on sample to stain the caries lesion, and the stained area was removed using an Er:YAG laser. The process was repeated until the stained area was completely removed. The output of the Er:YAG laser was 100 mJ. The hardness of sample was tested using a micro hardness testing machine (Cariotester). It was investigated the hardness of sample removed using Er:YAG laser and the steel bur were compared. As a result, the hardness of remaining dentin turned into the same hardness as sound dentin and the significant difference was not between using Er:YAG laser and the steel bur.
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Report
(4 results)
Research Products
(48 results)
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[Journal Article] Evaluation of a tooth bleaching system incorporating titanium dioxide - Influence of the concentrations of hydrogen peroxide and titanium dioxide on bleaching effect -2013
Author(s)
Ling Lu , Kazushi Yoshikawa, Obito Komatsu, Yohei Hirota, Yasunao Hattori, Chihiro Inoue, Kenzo Yasuo, Hiroaki Tanimoto, Naohiro Iwata, Buling Wu, Kazuyo Yamamoto
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Journal Title
J Osaka Dent Univ
Volume: 47(2)
Pages: 209-214
NAID
Related Report
Peer Reviewed
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[Presentation] ティースキーパー「ネオ」の普及活動-第84回選抜高校野球大会と第94回全国高等学校野球選手権大会出場校のアンケート調査-2013
Author(s)
横田啓太, 吉川一志, 谷本啓彰, 竹内摂, 畑下芳史, 保尾謙三, 小正玲子, 廣田陽平, 木下智, 山本一世, 森田章介, 小正裕
Organizer
第24回日本スポーツ歯科医学会総会・学術大会
Place of Presentation
東京
Year and Date
2013-06-30
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