Ward J E, Moon P C, Levine R A, Behrendt C L
Department of Removable Prosthodontics, Virginia Commonwealth University, School of Dentistry, Richmond, Va.
J Prosthet Dent. 1992 Jun;67(6):815-20. doi: 10.1016/0022-3913(92)90591-w.
The transverse strengths of blocks of denture base acrylic resin repaired with autopolymerizing monomer and polymer and autopolymerizing monomer and heat-cured polymer were measured with a three-point bending test. Three repair joints were studied: butt, round, and 45-degree bevel. Three processing methods were used: bench cure, hydroflask with hot water for 10 minutes, and hydroflask with hot water for 30 minutes. The strengths of repairs made with round and 45-degree bevel joint designs were similar and significantly greater than those with a butt joint design. The strengths of repairs processed in a hydroflask for 10 minutes and 30 minutes were similar and significantly greater than those cured on the bench top. There was no difference in the strength of repairs made with autopolymerizing monomer and polymer and autopolymerizing monomer and heat-cured polymer.
采用三点弯曲试验测量了用自凝单体与聚合物以及自凝单体与热固化聚合物修复的义齿基托丙烯酸树脂块的横向强度。研究了三种修复接头：对接、圆形和45度斜面。使用了三种加工方法：台式固化、在热水浴中加热10分钟和在热水浴中加热30分钟。圆形和45度斜面接头设计的修复强度相似，且显著高于对接接头设计的修复强度。在热水浴中处理10分钟和30分钟的修复强度相似，且显著高于在台式上固化的强度。用自凝单体与聚合物以及自凝单体与热固化聚合物进行修复的强度没有差异。
