Polymerization shrinkage mechanism, using micro-CT for tracing filler movement in light cured resin composite.

本研究的目的是评估光固化复合材料在深I类腔中聚合时的收缩矢量。实验用树脂复合材料加或不加粘结剂填充在I类箱形腔中。聚合收缩矢量取决于深度和转化程度。微型ct的应用是一种新的方法来呈现整体轮廓和定量测量牙科复合材料的收缩。

The aim of this study was to evaluate the shrinkage vectors of light-cured composites during polymerization in a deep class I cavity. Experimental resin composite was filled into a box-shaped class I cavity with or without a bonding agent. The polymerization shrinkage vectors depend on both depth and conversion degree. The application of micro-CT is a novel approach to present an overall profile and quantitatively measure shrinkage of dental composites.