[聚甲基丙烯酸甲酯（PMMA）基托材料的孔隙率、显微硬度、粗糙度及内应力与其隔离性的关系。1. 孔隙率和显微硬度]
[The porosity, microhardness, roughness and internal stresses of PMMA base materials in relation to their isolation. 1. Porosity and microhardness].
作者信息
Lockowandt P, Loges H, Wagner I V
出版信息
Zahn Mund Kieferheilkd Zentralbl. 1989;77(7):686-91.
PMID:2532829
Abstract
Selected material properties of hot and cold polymerized denture basic materials (polymethylmethacrylate) were investigated after different methods of isolation: alginate, tin foil and silicone. Both tin foil and silicone isolation the handling of which is much easier result in a decreased portion of porosities and an increased microhardness in the PMMA.
摘要
研究了采用藻酸盐、锡箔和硅树脂等不同隔离方法后，热聚合和冷聚合义齿基托材料（聚甲基丙烯酸甲酯）的选定材料性能。锡箔和硅树脂隔离操作起来要容易得多，它们会使聚甲基丙烯酸甲酯中的孔隙率降低，显微硬度增加。
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