Development of acid resistive apatite sheet with gradation of fluorine density and crystallinity
Project/Area Number |
24560864
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Structural/Functional materials
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Research Institution | Kinki University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
OKAI Daisuke 兵庫県立大学大学院, 工学研究科, 助教 (60336831)
|
Project Period (FY) |
2012-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
|
Keywords | フッ化アパタイト / ハイドロキシアパタイト / 膜 / 傾斜構造 / 歯科 / 齲蝕予防 / 歯科治療・予防素材 / 結晶化 |
Outline of Final Research Achievements |
We developed a fabrication method of new dental material of apatite sheet that prevents tooth decay. Using the pulsed laser deposition, top side of the sheet was made of crystalized fluoroapatite (F-Ap) to prevent from tooth decay, and the bottom side of the sheet was made of amorphous hydroxyapatite (H-Ap) to be able to bond itself with the tooth surface. Degree of crystallization and density of the F and OH was gradually varied from the top to the bottom through the film. X-ray diffraction showed that a single layer of the F-Ap film was crystallized with c-axis orientation perpendicular to the film surface. Fourier-transform infrared spectroscopy indicated that the single F-Ap film was pure Ca10(PO4)6F2 without OH group. The F-Ap film showed an acid resistance lower than pH of 5.
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Report
(4 results)
Research Products
(20 results)