| Project/Area Number |
23592796
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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 University |
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Principal Investigator |
YAMAMOTO Hiroko 大阪大学, 歯学研究科(研究院), 招へい教員 (60448107)
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| Co-Investigator(Kenkyū-buntansha) |
IWAMI Yukiteru 大阪大学, 大学院歯学研究科, 助教 (90303982)
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| Co-Investigator(Renkei-kenkyūsha) |
YASUDA Keisuke 若狭湾エネルギー研究センター, 主任研究員 (00359241)
OKUYAMA Katsushi 北海道大学, 大学院歯学研究科, 助教 (00322818)
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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 |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | フッ素 / 定量測定法 / う蝕 / 加速器 / PIXE/PIGE / ＰＩＸＥ／ＰＩＧＥ / 定量測定 / 脱灰 / 再石灰化 / PIGE / フッ素定量測定法 / フッ素徐放性歯科材料 / 歯質 |
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| Research Abstract |
We have developed a new fluorine quantitative measurement method using a micro-PIXE (Proton Induced X-ray Emission) / PIGE (Proton Induced Gamma-ray Emission). By using this measurement method, it has become possible for the first time to catch the movement of fluorine upon demineralization of tooth. Further, it was shown that the fluorine in the tooth released with decalcified was again taken into the tooth.
The possibility that concentration value of fluorine in the tooth measured conventionally was contained both those not attached to the tooth, such as CaF2, and those attached to the tooth, has been shown.
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