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Development of New Dental Adhesives

Research Project

Project/Area Number 03045019
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionUniversity-to-University Cooperative Research
Research InstitutionTokyo Medical and Dental University

Principal Investigator

NAKABAYASHI Nobuo  Professor, Inst Med Dent Engineer, Tokyo Med Dent Univ, 医用器材研究所・有機材料部門, 教授 (30014020)

Co-Investigator(Kenkyū-buntansha) 鄭 剛  北京医科大学, 口腔医学院, 工程師
王 同  北京医科大学, 口腔医学院, 教授
徐 恒昌  北京医科大学, 口腔医学院, 教授
WATANABE Akihiko  Assis Prof., Inst Med Dent Engineer, Tokyo Med Dent Univ, 有機材料部門, 助手 (30126263)
ISHIHARA Kazuhiko  Assoc Prof., Inst Med Dent Engineer, Tokyo Med Dent Univ, 有機材料部門, 助教授 (90193341)
XU Heng Chang  Professor, Stomatology Colle, Beijing Med Univ
WANG Ton  Professor, Stomatology Colle, Beijing Med Univ
ZHENG Gang  Lecturer, Stomatology Colle, Beijing Med Univ
Project Period (FY) 1991 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥5,100,000 (Direct Cost: ¥5,100,000)
Fiscal Year 1993: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1992: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1991: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsDental Adhesive / Interpenetration / Monomer / Hybrid Layer / Dentin / Methacrylate / Bonding / 安定性 / 歯科接着剤 / 浸透性 / ハイブリッド層 / モノマ- / メタクリレ-ト
Research Abstract

Adhesion to dentin is a key technology in adhesive dentistry but it is not accepted well even nowadays. The bonding mechanism is discussed based on the bonding strength, and SEM and TEM examination of bonded samples. Creation of hybrid layer in dentin-side adhesive interface is essential to make bonding of resin to dentin. The hybrid layer is not dentin, not resin but a mixture of dentin and cured resin. It is formed by polymerization of diffused and impregnated monomers in dentin. The rate of monomer diffusion is the functions of diffusibility of monomers and diffusivity of penetrated dentin. Monomers with both hydrophobic and hydrophilic groups can promote diffusion of monomers into the substrate. A variety of methacrylate-based materials have been developed with the capacity of adhering to dentin. In this project, the effectiveness of 2-(methacryloyloxy)ethyl phenyl hydrogen phosphate (Phenyl-P) for bonding 5% phenyl-P in methyl methacrylate to dentinal surfaces. The polymerization of the phenyl-P/MMA monomer was initiated by partially oxidized tri-n-butyl borane catalyst(TBB). The mean tensile bond strength of 5% phenyl-P in MMA to dentin that was pre- treated with an aqueous solution of 10% citric acid/3% ferric chloride was found to be 10.5MPa. The SEM observation confirmed that the hybrid layer was formed at the interface between dentin and resin.

Report

(3 results)
  • 1993 Final Research Report Summary
  • 1992 Annual Research Report
  • 1991 Annual Research Report

Research Products

(24 results)

All Other

All Publications

  • [Publications] T.Wang: "Photocure bonding agent containing phosphoric methacrglate" Dental Materials. 7. 59-62 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Wang: "Effect of 2(Methacryloxy)etbyl Phenyl Hydrogen Phosphate on Adhesion to Dentin" J.Dent.Res.70. 59-66 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 王同: "Phenyl-P対牙本質粘合的促進作用" 中国生物医学工程学報. 10. 191-195 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 中林宣男: "象牙質への接着をめざして" 東医歯大医用器材研報. 25. 1-11 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 中林宣男: "HEMAが象牙質への接着に与える効果" 接着歯学. 9. 144-150 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] N.Nakabayashi: "The hybrid layer:a resin-dentin composite" Proc.Finn.Dent.Soc.88. 321-329 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 渡辺功: "光重合型ボンディング剤のリン酸処理 象牙質への接着-HEMAの効果-" 歯材器. 12. 705-713 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 渡辺昭彦: "被着体からみた歯質接着機構と試料作製法" 東医歯大医用器材研報. 27. 11-20 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Wang: "Photocure Bonding Agent Containing Phosphoric Methacrylate" Dental Mater.7. 59-62 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Wang: "Effect of 2-(Methacryloxy)ethyl Phenyl Hydrogen Phosphate on Adhesion to Dentin" J.Dent.Res.70. 59-66 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Wang: "Effect of Phenyl-P on Adhesion to Dentin" Chinese J. Biomed. Engineer.10. 191-195 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] N.Nakabayashi: "Adhesion to Dentin" Report Inst. Med. Dent. Engineer.25. 1-11 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] N.Nakabayashi: "Effectiveness of HEMA on Dentin Adhesion" Adhesive Dent.9. 144-150 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] N.Nakabayashi: "The Hybrid Layer : A resin-Dentin Composite" Proc. Finn. Dent. Soc.88. 321-329 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] I.Watanabe: "Effect of HEMA on Bonding to Dentin Pretreated with Phosphoric Acid" J.J.Soc.Dent.Mater.Device.12. 705-713 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] A.Watanabe: "Preparation of SEM and TEM Specimens to Examine Bonding Mechanism to Dentin" Report Inst. Med. Dent. Engineer.27. 11-20 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] N.NAKABAYASHI: "Effect of HEMA on Bonding to Dentin" Dent.Mater.8. 125-130 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] N.NAKABAYASHI: "Identification of a Resin-dentin Hybrid Layer in vital Human Dentin Created in vivo :Durable Bonding to Vital Dentin" Quintessence International. 23. 135-141 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 加藤 元: "光重合したTEGDMAの吸水による機械的性質の変化" 歯材器. 11. 357-362 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Wang and N.NAKABAYASHI: "Effect of 2-(Methacryloxy)ethyl Phenyl Hydrogen Phosphate on Adhesion to Dentin" Journal of Dental Research. 70. 59-66 (1991)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Wang, T.NIKAIDO and N.NAKABAYASHI: "Photocure bonding agent containing Phosphoric methacrylate" Dental Materials. 7. 59-62 (1991)

    • Related Report
      1992 Annual Research Report
  • [Publications] 王 同、中林 宣男: "Phenyl-P 対牙本質粘合的促進作用" 中国生物医学工程学報. 10. 191-195 (1991)

    • Related Report
      1992 Annual Research Report
  • [Publications] Wang Ton: "Effect of 2-(Methacryloxy)ethyl Phenyl Hydrogen Phosphate on Adhesion to Dentin" J.Dental.Res. 70. 59-66 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Wang Ton: "Photocure Bonding Agent Containing Phosphoric Methacrylate" Dental Materials. 7. 59-62 (1991)

    • Related Report
      1991 Annual Research Report

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Published: 1991-03-31   Modified: 2016-04-21  

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