光固化冠桥复合树脂强化作用的实验研究

Experimental Study on the Reinforced Effect of Light-Curing Composite Resins Used for Crowns and Bridges

目的 探讨光固化冠桥复合树脂的强化效果。方法 选择 3种光固化冠桥树脂 ,3种不同目数的涤纶和 3种不同目数的不锈钢筛网作外加强。制作试件及冠桥 ,并与专用纤维网加强桥相比 ,测定抗压、3点抗弯强度。结果 ⑴不锈钢丝网增强效果明显 ,涤纶丝网无强化效果 ;⑵冠的加强效果尤为明显 ;⑶Targis的性能好于Artglss和Solidex。结论 复合材料的性能与外加强材料密切相关 ,金属网状结构对压缩的耐受性优于对屈曲的耐受性。

Objective To evaluate the reinforced effect of the light curing composite resins used for crowns and bridges. Method Three light curing composite resins which were used for crowns and bridges were chosen, and three polyester fiber sieves and three stainless steel sieves in different mesh were used as the additional reinforced materials.Compressive strength and three point flexural strength of test bars made of those materials were evaluated. The reinforced bridges with special fibers were used as control groups.Result (1)There was significant increase in the stainless steel sieves groups. Nevertheless, there was some decrease after use of the polyester fibers as the additional reinforced material. (2)The increase of the reinforced crowns was especially obvious. (3)Among the three resins, the property of Targis was better than that of Arglass and Solidex.Conclusion The properties of the whole composite material were closely correlated with the additional reinforced materials, the resistance to compression of the sieves are better than its resistance to bend. [