4种粘结材料在氧化锆陶瓷与牙本质间的粘结剪切强度比较

Comparison of 4 types of luting cements on shear bond strength of zirconium ceramics to dentin

目的探讨氧化锆陶瓷与牙本质间合适的粘结材料。方法将烧结后的氧化锆陶瓷片分为4组,每组6片,分别选用PanaviaTMF、Multilink Sprint、RelyXTMLuting、Fuji plus 4种粘结材料将经过纳米硅涂层表面改性的氧化锆陶瓷片与牙本质进行粘结,水浴24 h后测试其粘结剪切强度,数据用SAS6.12软件进行统计学分析。结果PanaviaTMF的粘结抗剪强度最高,与RelyXTMLuting和Fuji plus差别有高度统计学意义(P<0.01),与MultilinkSprint的差异无统计学意义(P>0.05)。结论含磷酸单体MDP的树脂粘结剂,配合适当的表面处理方式可以使氧化锆陶瓷获得较好的粘结效果。

Objective To study the different luting cements on shear band strength of zirconium ceramics to dentin.Methods Blocks of sintered zirconium ceramics were randomly divided into 4 groups with 6 slices in each.They were treated with SiO2 layer and then bonded to dentin with four kinds of luting cements： PanaviaTMF,Multilink Sprint,RelyXTM Luting and Fuji plus.After preserved in distilled-water for 24 hours,the shear bonding strength of these specimens was tested and the data were analyzed by SAS6.12 software package.Results The shear bonding strength in group of PanaviaTMF was the highest which was significantly different from that in group of RelyXTM Luting and group of Fuji plus（P〈0.01）,while there was no statistical significance with that in Multilink Sprint group（P〉0.05）.Conclusion Resin luting cement containing phosphate monomer（MDP） coupled with adequate surface treatment could obtain the best bonding effect.