Development of corrosion evaluation of titanium alloys in simulated oral environment

2010 Fiscal Year Final Research Report

• Project/Area Number: 20791478
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Dental engineering/Regenerative dentistry
• Research Institution: Tokyo Dental College
• Principal Investigator: TAKEMOTO Shinji Tokyo Dental College, 歯学部, 講師 (70366178)
• Co-Investigator(Renkei-kenkyūsha): YUTAKA Oda 東京歯科大学 (00085838) ; MASAYUKI Hattori 東京歯科大学 (10307390)
• Project Period (FY): 2008 – 2010
• Keywords: チタン / チタン合金 / 義歯洗浄剤 / 防食 / シミュレーション / 電気化学 / 溶出試験 / 表面分析

Research Abstract

As the objective of this study was built up to evaluation system of corrosion resistance for dental alloys in oral environments, the influence of proteins in oral environment on resistance of corrosion to fluoride and hydrogen peroxide was systematically discussed. The results indicated that protein in solution and on titanium surface gave titanium alloys to be delayed the discoloration and corrosion. Also, titanium alloys containing chromium had better resistance of corrosion to fluoride and peroxide than other titanium alloys.

Research Products

• [Journal Article] Effect of chromium content on mechanical properties of casting Ti-Cr alloy. (2010)
  • Author(s): M.Hattori, S.Takemoto, M.Yoshinari, E.Kawada, Y.Oda.
  • Journal Title: Dental Materials Journal 29 Pages: 570-574
• [Journal Article] Corrosion mechanism of Ti-Cr alloys in solution containing fluoride. (2009)
  • Author(s): S.Takemoto, M.Hattori, M.Yoshinari, E.Kawada, K.Asami, Y.Oda.
  • Journal Title: Dental Materials 25 Pages: 467-472
• [Journal Article] Surface oxide film formation on titanium alloys immersed in acidic saline solutions containing hydrogen peroxide. (2009)
  • Author(s): S.Takemoto, M.Hattori, M.Yoshinari, E.Kawada, Y.Oda.
  • Journal Title: Bioceramics 22 Pages: 779-782
• [Journal Article] Influence of hydrogen peroxide in acidulated solution on formation of oxide films on titanium alloys. (2009)
  • Author(s): S.Takemoto, M.Hattori, M.Yoshinari, E.Kawada, Y.Oda.
  • Journal Title: Archives of BioCeramics Research 9 Pages: 167-170
• [Journal Article] Suppression of Fluoride-Induced Corrosion of Titanium by Albumin in Oral Modified Environment. (2008)
  • Author(s): S.Takemoto, M.Hattori, M.Yoshinari, E.Kawada, Y.Oda.
  • Journal Title: Journal of Biomedical Materials Research Part B : Applied Biomaterials 87B Pages: 475-481
• [Presentation] Discoloration of titanium alloys in denture cleaner. (2010)
  • Author(s): S.Takemoto, M.Hattori, M.Yoshinari, E.Kawada, Y.Oda.
  • Organizer: 88^<th> general session & exhibition of the IADR.
  • Place of Presentation: Barcelona, Spain
  • Year and Date: 20100713-20100717
• [Presentation] EIS measurement of titanium in peroxide-and fluoride-containing solutions. (2010)
  • Author(s): Y.Oda, S.Takemoto, M.Hattori, M.Yoshinari, E.Kawada.
  • Organizer: 88^<th> general session & exhibition of the IADR.
  • Place of Presentation: Barcelona, Spain
  • Year and Date: 20100713-20100717
• [Presentation] Influence of hydrogen peroxide in acidulated solution on formation of oxide films on titanium alloys. (2009)
  • Author(s): S.Takemoto, M.Hattori, M.Yoshinari, E.Kawada, Y.Oda.
  • Organizer: 9^<th> Asian BioCeramics Symposium.
  • Place of Presentation: Nagoya, Japan.
  • Year and Date: 20091208-20091211
• [Presentation] Surface oxide film formation on titanium alloys immersed in acidic saline solutions containing hydrogen peroxide. (2009)
  • Author(s): S.Takemoto, M.Hattori, M.Yoshinari, E.Kawada, Y.Oda.
  • Organizer: 22^<nd> International Symposium on Ceramics in Medicine.
  • Place of Presentation: Daegu, Public of Korea.
  • Year and Date: 20091026-20091029
• [Presentation] Influence of peroxide-containing alkaline solution on corrosion of titanium alloys. (2009)
  • Author(s): S.Takemoto, M.Hattori, M.Yoshinari, E.Kawada, Y.Oda.
  • Organizer: 87^<th> general session & exhibition of the IADR/AADR/CADR.
  • Place of Presentation: Miami, USA.
  • Year and Date: 20090401-20090404
• [Presentation] EQCA analysis of titanium corrosion in peroxide-and fluoride-containing solutions. (2009)
  • Author(s): Y.Oda, S.Takemoto, M.Hattori, M.Yoshinari, E.Kawada.
  • Organizer: 87^<th> general session & exhibition of the IADR/AADR/CADR.
  • Place of Presentation: Miami, USA.
  • Year and Date: 20090401-20090404
• [Presentation] Fatigue properties of fiber-reinforced post and resin core build-up materials. (2009)
  • Author(s): M.Hattori, Takemoto, M.Yoshinari, E.Kawada, Y.Oda.
  • Organizer: 87^<th> general session & exhibition of the IADR/AADR/CADR.
  • Place of Presentation: Miami, USA.
  • Year and Date: 20090401-20090404
• [Presentation] Surface reaction of titanium oxide film to fluoride and hydrogen peroxide in simulated oral environment. (2008)
  • Author(s): S.Takemoto, M.Hattori, M.Yoshinari, E.Kawada, Y.Oda.
  • Organizer: 21^<st> International Symposium on Ceramics in Medicine.
  • Place of Presentation: Buzios, Rio de Janeiro, Brazil
  • Year and Date: 20081022-20081024
• [Presentation] Corrosion behavior of dental alloys in gargle solutions. (2008)
  • Author(s): S.Takemoto, M.Hattori, M.Yoshinari, E.Kawada, Y.Oda.
  • Organizer: The 4^<th> Sino-Japan Conference on Stomatology.
  • Place of Presentation: Xi'an, China.
  • Year and Date: 20080928-20090929
• [Remarks] ホームページ等
• [Remarks] IRUCAA@TDC
  • URL: http://ir.tdc.ac.jp/irucaa/