Development of dental implant with self-cleaning function

2014 Fiscal Year Final Research Report

• Project/Area Number: 24592948
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Dental engineering/Regenerative dentistry
• Research Institution: Tohoku University
• Principal Investigator: TAKAHASHI Masatoshi 東北大学, 歯学研究科(研究院), 助教 (50400255)
• 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)
• Project Period (FY): 2012-04-01 – 2015-03-31
• 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

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.

Free Research Field

歯科生体材料学分野