Schelb E, Baracat S A, Almaguer R
University of Texas Health Science Center at San Antonio.
Am J Dent. 1990 Aug;3(4):171-4.
This study evaluated the compatibility of five polyvinyl siloxanes (Reflect, Exaflex, President, Permagum, and Extrude), one polysulfide (Permalastic) and one polyether (Polygel) impression materials with the new epoxy resin, AlphaDie 87. Only the polysulfide and the polyether were prepared with the "super separator". A line 20 microns wide was scribed into three glass dies (plates). Each nonaqueous elastomeric was used to make an impression of the line in each of the three glass dies. Each of the impressions was allowed to set in a water bath (36 degrees C). The epoxy die material was introduced onto the line surface of the impression to create a copy of the line. The epoxy was allowed to set against the impression. Detail reproduction of the line, or compatibility, was determined by the presence of the reproduced line on the epoxy specimen by three raters. There was unanimous agreement among the 63 independent homogenous ratings of line presence on impression specimens. The line was reproduced on all of the impression specimens but only in 71.4% (5/7) of the epoxy specimens. The epoxy specimens reproduced the line in all the polyvinyl siloxane specimens (5/5).
本研究评估了五种聚乙烯基硅氧烷（Reflect、Exaflex、President、Permagum和Extrude）、一种聚硫橡胶（Permalastic）和一种聚醚（Polygel）印模材料与新型环氧树脂AlphaDie 87的兼容性。只有聚硫橡胶和聚醚是用“超级隔离剂”制备的。在三个玻璃模具（板）上划出一条20微米宽的线。每种非水弹性体用于在三个玻璃模具中的每个模具上对线进行印模。每个印模在水浴（36摄氏度）中凝固。将环氧树脂模具材料引入印模的线表面以制作线的复制品。使环氧树脂靠着印模凝固。由三名评估者根据环氧树脂样本上复制线的存在情况来确定线的细节再现或兼容性。在对印模样本上线的存在情况进行的63次独立同质性评级中意见一致。线上的印模样本都能复制出线，但环氧树脂样本中只有71.4%（5/7）能复制出线。环氧树脂样本在所有聚乙烯基硅氧烷样本中都复制出了线（5/5）。
