Development of microwave-cured composite resin inlay

商业可见光固化复合树脂由于美观的优点已被广泛用作直接的前部和后部矫正剂。最近，间接后路复合材料由于易于操作而被认为是修复体。间接后固化复合材料的聚合方法一般采用可见光后热固化法。另一方面，有多种固化周期可用于丙烯酸义齿基托聚合物的加工。探讨了微波能在义齿基托丙烯酸树脂聚合中的应用。然而，微波能量对多功能单体固化性能的影响还没有很好地阐明。因此，本研究的目的是（1）探讨不同浓度的过氧化苯甲酰对微波固化行为的影响，（2）评价不同填料含量对微波固化复合树脂力学性能的影响，以及（3）结果表明，过氧化苯甲酰含量的增加，提高了聚合物的分散性，固化度，在该实验树脂体系中，机械强度（抗压强度、径向拉伸强度和努普硬度）在添加0.94 μ m尺寸的填料时增加，用扫描电镜观察了基体单体与填料表面的连接部分被破坏的孤立填料。结果表明，微波能引发多官能单体聚合是一种有效的新型固化方法，间接后复合树脂和填料的单体和表面处理材料的改进具有很大的可能性。

Commercial visible-light-cured composite resins have been used widely as direct anterior and posterior restoratives due to aesthetic merit. Recently, indirect posterior composites have been considered as restorative owing to easy handling. The polymerization method of indirect posterior composites has been generally used visible-light and post-cure by heat. On the other hand, there is a variety of curing cycles that can be used in the processing of acrylic denture base polymers. So that the application of microwave energy to polymerization of denture base acrylic resin is discussed. However, influence of microwave energy to curing performance on the multifunctional monomers are still not clarified well. Therefore, the purpose of the present study was (1) to investigate the effects of various concentrations of the benzoyl peroxide on the curing behaviors, (2) to evaluate the mechanical properties by different filler content in the experimental microwave-cured composit resin, and (3) to observe the additional filler conditions in the base monomer by SEM.The results showed that increasing of the benzoyl peroxide content improved the degree of cure, in this experimental resin system, mechanical strength (Compressive strength, Diametral tensile strength and Knoop hardness) was increased on the addition filler of 0.94mum size, and the isolated filler which were broken the conective part of base monomer and the surface of filler was observed by SEM.These results that the polymerization of multifunctional monomers by the microwave energy was valid newly cure method of indirect posterior composite resin and have great possibilities improvement of monomer and surface treatment material of filler.