学術大会開催の挨拶

概要

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The effectiveness of Laminabond Porcelain Primer on the porcelain adhesion was investigated in this study. The lamina Bond Porcelain Primer was newly commercial available silane coupling agent which is one bottle type. The porcelain surface was rolished with # 1,000 paper and treated with Lamina Bond Porcelain Primer for 30 seconds. As composite resin, Lamina Bond Ciomposite Resin or Esthelay Cement were used. The shear bond strengths between composite resin and porcelain, and those between enamel and rorcelain mediated by the composite resin were measured after one day immersion in 37℃ water or thermocycles between 4℃ and 60℃. While without Porcelain Primer treatment, the bond strengths between composite resin and rorcelain were as low as about 50kgf/cm^2, with Primer treatment the bond strengths increased to about l50kgf/cm^2. After thermal cycling tests, the bond strengths of Lamina Bond Composite Resin to the primed porcelain remarkably decreased, but those of Esthelay Cement did not. There were no decrease of the bond strengths between enamel and Primer treated porcelain mediated by the composite resin after thermal cycling tests.
日本補綴歯科学会の論文
1991-04-01