New electrochemical approach for evaluation of corrosion behavior of dental alloy
Project/Area Number |
19390500
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
補綴理工系歯学
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Research Institution | Tokyo Dental College |
Principal Investigator |
ODA Yutaka Tokyo Dental College, 歯学部, 教授 (00085838)
|
Co-Investigator(Kenkyū-buntansha) |
TAKEMOTO Shinnji 東京歯科大学, 歯科理工学講座, 講師 (70366178)
|
Project Period (FY) |
2007 – 2009
|
Project Status |
Completed (Fiscal Year 2009)
|
Budget Amount *help |
¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000)
Fiscal Year 2009: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2008: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2007: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
|
Keywords | 歯科用合金 / 腐食 / 電気化学 / チタン / タンパク質 / 貴金属合金 / 変色 |
Research Abstract |
Although well known for their superior resistance to corrosion, titanium and titanium alloys are unable to withstand discoloration in clinically. This study revealed the corrosion behavior of titanium alloys with electrochemical measurement, discoloration, dissolution, EQCM and EIS analysis. The results confirm that corrosion of titanium takes place in acidulated fluoride- or alkaline peroxide-containing solution, and discoloration mainly results from peroxide-induced oxidation in acidulated peroxide containing solution. The addition of chromium suppresses corrosion of titanium alloys.
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Report
(4 results)
Research Products
(39 results)
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[Journal Article] Discoloration and dissolution of titanium and titanium alloys with immersion in peroxide- or fluoride-containing solutions.2008
Author(s)
Noguchi, T., Takemoto, S., Hattori, M., Yoshinari, M., Kawada, E., Oda, Y.
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Journal Title
Dent Mater J 27
Pages: 117-123
NAID
Related Report
Peer Reviewed
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