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1993 Fiscal Year Final Research Report Summary

Development of Noble Metal Alloys for the Implantation

Research Project

Project/Area Number 02404076
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field 補綴理工系歯学
Research InstitutionDental Material Science, School of Dentistry Aichigakuin University

Principal Investigator

HASEGAWA Jiro  Dent.Mate.Scie., Aichigakuin Univ.Proffesor, 歯学部・歯科理工学, 教授 (10064809)

Co-Investigator(Kenkyū-buntansha) TSURUTA Shozo  Dent.Mate.Scie., Aichigakuin Univ.Assistant Professor, 歯学部・歯科理工学, 講師 (40183488)
BAN Seiji  Dent.Mate.Scie., Aichigakuin Univ.Assistant Professor, 歯学部・歯科理工学, 講師 (10159105)
KAWAI Tatshushi  Dent.Mate.Scie., Aichigakuin Univ.Assistant Professor, 歯学部・歯科理工学, 講師 (60167351)
TAKAHASHI Yoshifumi  Dent.Mate.Scie., Aichigakuin Univ.Associate Professor, 歯学部・歯科理工学, 助教授 (00090142)
FUKUI Hisao  Dent.Mate.Scie., Aichigakuin Univ.Associate Professor, 歯学部・歯科理工学, 助教授 (50090147)
Project Period (FY) 1990 – 1993
KeywordsImplant / noble metal / platinum / gold / cast / bone reconstruction / transplant / osteoinduction
Research Abstract

Information of the noble metal alloys as implant materials were few, and especially, tissue reaction of these alloys were unknown. In this experiment, basic information of elements of Au and Pt were obtained, and these will be a fundamental data in this field. Biocompatibility of Au-Pt alloys are as good as almost same as pure titanium. Among these alloy, 10%Pt^-40%Pt alloys showed excellent properties, and did not inhibit the new bone formation.
In order to obtain the alloy which has larger mechanical strength, 5%Ta-25%Pt-Au alloy was made. This alloy represented the fine castability, high mechanical strength and excellent biocompatibility. However, most adequate amount of Ta has not been determined yet, and further investigation for the best composition of this alloy is necessary. Thermal treatment of Au-Pt or Au-Pt-Ta alloys were not performed, so further investigation to modify these alloys considering of hardening heat treatment will be very important. This study concentrated to the lower percentage of Pt, but the alloys which contains larger amount of Pt and less Au may show good properties as implant materials.
By this experiment, fundamental data concerning to the Au-Pt binary alloys and one excellent Au-Pt-Ta alloy were obtained. It will be great advantages for the development of new noble metal alloys for the implantation to perform further investigation of these Au-Pt and Au-Pt-Ta alloys.

  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] 長谷川二郎: "歯科鋳造用合金の性質-金合金-" 歯科技工別冊「歯科鋳造のすべて」. Special. 28-33 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Kawai J.Hasegawa: "Osteoinductive activity of composites of bone morphogenetic protein and pure titanium" Clinical Orthopaedics and Related Research. 290. 296-305 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 河合達志,長谷川二郎: "各種金属の骨形成に与える影響について-BMP作用下における各種金属の影響" 硬組織研究技術学会誌. 1(1). 53-54 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Fukui J.Hasegawa: "Fatiguecrack propagation in dental alloy observed with a long distance microscope" Aichi-Gakuin Dent.Sci.5(1). 21-26 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 長谷川二郎: "合金" 歯科ジャーナル. 34(4). 481-486 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 長谷川二郎,河合達志: "下部構造用材料を歯科材料の立場から考える-現状とその将来への展望-" オーラル・マキシロフェイシャル・インプラント. 3(6). 415-421 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 長谷川二郎(監修): "明解歯科理工学 第2版" 学建書院(東京), 376 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 長谷川二郎(分担): "歯科鋳造学" 歯科薬出版(東京), 197 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Jiro Hasegawa: "Properties of casting alloys-gold alloy-" The Journal of Dental Technology Special issue of "All of Dental casting. 28-33 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Kawai J.Hasegawa: "Osteoinductive activity of composites of bone morphogenetic protein and pure titanium" Clin Orthop and Related Research. 290. 296-305 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Kawai J.Hasegawa: "Influence of several metals on osteoinductive activity-effect of metals under the affection of BMP-" Journal of Hard Tissue Biology. 1 (1). 53-54 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Fukui J.Hasegawa: "Fatiguecrack propagation in dental alloy observed with a long distance microscope." Aichi-Gakuin Dent.Sci.5 (1). 21-26 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Jiro Hasegawa: "Alloys" The Journal of Dental Medicine. 34 (4). 481-486 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Kawai J.Hasegawa: "A consideration of substructure from the view point of dental materials." Oral Maxillo Facial Implant. 3 (6). 415-421 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Jiro Hasegawa (Ed.): Comprehensive Dental Materials. Gakkenn Shoin (Tokyo), (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Jiro Hasegawa (et al): Dental Casting Technology. Ishiyaku (Tokyou), (1990)

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

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Published: 1996-04-15  

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