Bonding of relining resin cured by .ALPHA.-amylase catalyzed polymerization to denture base.

DOI 6 References
  • OHASHI Hirofumi
    The 1st Department of Prosthetic Dentistry, Kagoshima University, Dental School
  • MINAMI Hiroyuki
    The 1st Department of Prosthetic Dentistry, Kagoshima University, Dental School
  • KURASHIGE Hisanori
    The 1st Department of Prosthetic Dentistry, Kagoshima University, Dental School
  • MINESAKI Yoshito
    The 1st Department of Prosthetic Dentistry, Kagoshima University, Dental School
  • ONIZUKA Tadashi
    The 1st Department of Prosthetic Dentistry, Kagoshima University, Dental School
  • TANAKA Takuo
    The 1st Department of Prosthetic Dentistry, Kagoshima University, Dental School

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Other Title
  • α‐アミラーゼに反応して硬化するリライニング用レジンと義歯床の結合に関する研究

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Abstract

REPRODENT relining resin cures very slowly by α-amylase in saliva catalyzed polymerization. The purpose of this study was to evaluate a bonding ability of REPRODENT against denture bases made of acrylic resin and Co-Cr alloy. Ability for adherent of traditional relining material to REPRODENT was also studied. As the method, bonding specimens were fabricated by curing REPRODENT on the chemically and mechanically treated disk surface of denture base resin or Co-Cr alloy. In addition, traditional relining resin was applied on the surface of cured REPRODENT disk. Specimens were thermocycled for maximum 50, 000 times and shear bond strength were measured. As the result, untreated and methylene chloride painted surface of acrylic resin showed excellent bond strength which decreased very slowly with the increase in the number of thermocycles, and alumina-blasted surface showed significantly lower bond strength. The separation of the REPRODENT from Co-Cr alloy specimen occurred within 20, 000 thermocycles. Traditional direct relining material revealed the highest bond strength and durability to cured REPRODENT painted Methyl Methacrylate monomer. In conclusion, sufficient bond between REPRODENT and denture bace resin was achieved without chemical surface treatment.

Journal

  • Adhesive Dentistry

    Adhesive Dentistry 20 (1), 1-9, 2002

    Japan Society for Adhesive Dentistry

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