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Effect of Adhesive Primer Developed Exclusively for Heat-curing Resin on Adhesive Strength between Plastic Artificial Tooth and Acrylic Denture Base Resin

  • NISHIGAWA Goro
    Clinical Division of Removable Prosthodontics, Okayama University Hospital of Dentistry
  • MARUO Yukinori
    Department of Occlusal and Oral Functional Rehabilitation, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • OKAMOTO Makoto
    Department of Occlusal and Oral Functional Rehabilitation, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • OKI Kazuhiro
    Department of Occlusal and Oral Functional Rehabilitation, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • KINUTA Yoshihiro
    Department of Occlusal and Oral Functional Rehabilitation, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • MINAGI Shogo
    Department of Occlusal and Oral Functional Rehabilitation, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • IRIE Masao
    Department of Biomaterials, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • SUZUKI Kazuomi
    Department of Biomaterials, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences

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Abstract

Despite progress in the development of denture base resin and artificial tooth materials, dental clinics are still plagued with artificial teeth falling off the denture base - due to poor bond strength - after denture delivery. Against this background, this study sought to examine the effect and durability of an adhesive primer developed exclusively for heat-curing resin on the adhesive strength of heat-curing denture base acrylic resin to plastic artificial tooth. Test specimens were divided into four groups according to the treatment method of the artificial tooth's test bonding surface: air abrasion, adhesive primer application, adhesive primer application after air abrasion, and pretreatment only (control) . After heat curing of acrylic resin onto the bonding surface, shear test was performed for two storage periods: 24-hour versus 100-day water storage. From the results obtained, it was revealed that the evaluated adhesive primer was significantly effective in increasing adhesive strength between artificial tooth and acrylic resin, although specimens were stored in water for 100 days.

Journal

  • Dental Materials Journal

    Dental Materials Journal 25 (1), 75-80, 2006

    The Japanese Society for Dental Materials and Devices

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