仮着用ならびに合着用セメントの被膜厚さに関する研究

概要

論文の詳細を見る
Temporary luting cements are used for cementing the provisional prosthodontic appliance or temporarily cementing the final appliance for adjustment prior to the permanent fixation. In the latter use, primary attention should be paid on the film thickness of the cement affecting the elevation of the appliance ; however, very few data have been reported on the film thickness for temporary cements. Therefore, the film thickness of the temporary and permanent luting cements were measured in this study under a compressive load of 15 kg using a differential transducer. The film thickness was not always smaller for the cements showing smaller thickness just after the compressive load was applied. It seems that the thixotropical behavior as well as the particle size and consistency of the slurry might be reflected in the decreasing rate of the thickness with time. Significant differences could be found in the film thickness among the commercial products used but not among the cement types. The obtained film thickess was statistically classified into three groups for the permanent luting cements ; 10, 25 and 35μm ; and five groups for the temporary cements ; 2, 10, 35, 40 and 45μm.
九州歯科学会の論文
1986-10-25