Development of functionally gradient bacteriostatic alloys by using laser heat treatment: application to orthodontic anchoring screw

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K15717
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Dental engineering/Regenerative dentistry
• Research Institution: Tohoku University
• Principal Investigator: Takahashi Masatoshi 東北大学, 歯学研究科, 助教 (50400255)
• Co-Investigator(Kenkyū-buntansha): 高田 雄京 東北大学, 歯学研究科, 准教授 (10206766) ; 天雲 太一 東北大学, 歯学研究科, 助教 (80451425)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: チタン合金 / チタン銀合金 / 金属組織 / 機械的性質 / 制菌性

Outline of Final Research Achievements

Aiming to develop functionally gradient bacteriostatic alloys, we prepared experimental Ti-Ag alloys and investigated their machinability. The machinability of Ti-Ag alloys was superior to that of pure titanium. On the other hand, experimental Ti-Nb-Cu ternary alloys were prepared and investigated their properties. The differences in the mechanical properties are attributable to solid-solution strengthening or to precipitation strengthening by the dual-phase (alpha + beta) structure. Additionally, we developed a simplified fixating device for performing intraoral radiography in beagle dogs.

Free Research Field

歯科生体材料学分野