Improvement in wear resistance of composite veneering materials

采用牙刷磨损试验机和三体磨损试验机对复合贴面材料的耐磨性进行了体外评价。采用金属粘结剂促进剂制备复合树脂贴面金属铸件。利用两种磨损试验机对树脂-金属界面的耐磨性进行了评价。通过使用含有硫醇衍生物单体的金属粘结剂，大大提高了界面的耐磨性。磨损测试还表明，颗粒尺寸分布和填料颗粒与基质树脂之间的粘结作用都影响材料的耐磨性。在此基础上，得出结论：在复合树脂贴面修复体的材料界面使用适当的粘结剂可以提高其耐磨性。

Wear resistance of composite veneering materials was evaluated in vitro using a tooth brush wear testing device as well as a three-body wear testing machine. Composite resin veneered metal casting specimens were prepared using metal adhesive promoter. Wear resistance of the resin-metal interface was evaluated by means of the two wear testing devices. Wear resistance of the interface considerably improved through the use of a metal adhesive agent that contain thiol derivative monomer. Wear testing also revealed that both particle size distribution and sdhesive bonding between the filler particles and the matrix resin affected wear resistance of the materials. On the basis of these findings, it is concluded that wear resistance of composite resin veneered restorations can be improved with the use of appropriate adhesive promoter at the materials interface.