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1998 Fiscal Year Final Research Report Summary

Effect of electric charge on titanium Implant.

Research Project

Project/Area Number 09672065
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Surgical dentistry
Research InstitutionShowa University

Principal Investigator

SAKURADA Shigeyo  Showa University, school of Dentistry, Associate Prof., 歯学部, 講師 (00112730)

Co-Investigator(Kenkyū-buntansha) YAGAMI Kimitoshi  Showa University, school of Dentistry, Associate Prof., 歯学部, 講師 (00210211)
Project Period (FY) 1997 – 1998
Keywordsdental implant / ionizing tendency / cell culture / tissue culture / titanium
Research Abstract

Recently, titanimu is most commonly used in dental implants. The implant abutment is usually treated by metal crown, using dental alloy. The ionizing tendency of titanium is greater than any other alloys using in dental treatment. If the titanium abutment is electorically contated with another dental alloy, it is expected that an electric currency is pass through the both metals and also (bone) tissue.
We sellect several dental metals, they are dental paradium allyo, stainless allyo for medical use and 18K gold allyo. Pure titanium and dental allyo were standed in the container and filled with human serum. The voltage was measured between titanium and another dental allyo, using a bridge circuit. The voltage between titanium and dental paradium allyo was the greatest between these three allyos. The currency between them is dependent on the square of metal surface, and the currency was gradualy decreased after few minutes. It can be explained the polarization was occurred on the metal surfaces and also the surface of the metals turned to the passive state.
We cultured a cell line (NA cells) on the titan plate and another dental alloy in plastic dish. The two metals were electrically contacted in one dish, and not contacted in control dish. The cell attachment to the metals were inhibited in electrically contacted dish.

  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 角田左武郎他: "ラット骨髄細胞のチタンプレートへの親和性について" 日本口腔科学会雑誌. 46(5). 645-645 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 八上公利 他: "ヒト軟骨様腫瘍組織および関腫瘍より樹生したヒト軟骨様細胞におけるインテグリンの発現" 第16回日本骨代謝学会総会. 16. 172-172 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nishimura A. et al: "Positional changes in the mandibular cundyle and amo-unt of month opening after sagittel split ramus osteotomy." J. Oral and Maxillofacial Sasgeny. 55. 672-676 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 井本衣美 他: "軟骨芽細胞様細胞と(USAC)のtibronectinへの接着について," 第12回日本軟骨代謝学会総会. (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kakuta S et al: "Effects of Radiation on proliferation and differentiation of osteoblast-like cells." J.Jpn Stomatol.Soc.46 (3). 231-236 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yagani K et al: "Appearance of integlin on human chondroblast-like cell line established from human chondroma" 16th Anual meeting of Japanese Society of bone metabolism. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nishimura A et al: "Positional changes in the mandibular condyle and amount of mouth opening after sagittal split ramus osteotomy with rigid or nonrigid osteosynthesis." J Oral Maxillofac Surg. 55. 672-676 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Imoto E et al: "Attachment to fibronectin on condroblast-like cell line (USAC)" 12th anual meeting of Japanese sosiety of cartilage metabolism.(1999)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-12-08  

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