Kaloyannides T M, Christidou L
J Dent Res. 1975 Jan-Feb;54(1):168-73. doi: 10.1177/00220345750540011401.
The permanent deformation-time relationship under constant load, of 15 elastomer impression materials were studied. All materials showed a greater permanent deformation under constant load than with tensile load, except the polyether material. Silicone and polyether materials exhibited perceptibly less permanent deformation than mercaptan materials ten minutes after mixing.
研究了15种弹性体印模材料在恒定负荷下的永久变形与时间的关系。除聚醚材料外，所有材料在恒定负荷下的永久变形都比拉伸负荷下的大。混合十分钟后，硅酮和聚醚材料的永久变形明显小于硫醇材料。
