| Project/Area Number |
24592948
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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 |
Dental engineering/Regenerative dentistry
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KIKUCHI Masafumi 東北大学, 大学院歯学研究科, 助教 (50250791)
TAKADA Yukyo 東北大学, 大学院歯学研究科, 准教授 (10206766)
YODA Nobuhiro 東北大学, 大学院歯学研究科, 助教 (20451601)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | チタン合金 / インプラント / 抗菌性 / 生体適合性 / セルフクリーニング / チタン銀合金 / バイオフィルム |
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| Outline of Final Research Achievements |
Aiming to develop dental implant with self-cleaning function, we prepared experimental Ti-Ag alloys and investigated their properties. The mechanical properties of Ti-Ag alloys were suitable for dental prostheses. Especially, the Ti-25%Ag alloy showed higher strength. A polishability of Ti-Ag alloys was superior to that of pure titanium. Ti-Ag alloys with 20% Ag and 25 % Ag inhibited biofilm formation of Streptococcus mutans and Streptococcus sobrinus. The biocompatibility of Ti-Ag alloys was good.
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