Effect of Alumina Sandblasting on Bonding Properties of CP Titanium with Resins for Crown and Bridge

DOI 7 Citations 8 References
  • FUJISHIMA Akihiro
    Department of Oral Biomaterials and Technology, Showa University School of Dentistry
  • MIYAZAKI Takashi
    Department of Oral Biomaterials and Technology, Showa University School of Dentistry
  • FUJISHIMA Yukari
    The Third Department of Prosthodontics, Showa University School of Dentistry
  • SHIBA Akihiko
    The Third Department of Prosthodontics, Showa University School of Dentistry

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  • アルミナ・サンドブラスト処理がチタンと硬質レジンの接着性に及ぼす影響

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Abstract

We examined bonding strengths of commercial veneering resin bonding systems to CP titanium after sandblasting using three different sizes of alumina particles(50μm, 110μm and 250μm).We also examined bonding properties of those systems to sintered alumina plate, since we previously noted that the sandblasted surface of titanium was severely contaminated by alumina particles.Sandblasting with 250μm alumina particles showed the highest bonding strength, and bonding strength increased with increase in the size of alumina particles.However, there were no significant differences in strength between 110μm and 250μm, or between polished surface and 50μm.Bonding strength for sintered alumina was significantly lower than that of titanium for NMC and CSD systems which showed excellent bonding for titanium.Therefore, the existence of alumina on the titanium surface by sandblasting was not useful for improving bonding properties on the sandblasted surface of CP titanium.

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