目的：对比4种树脂水门汀粘结Ceramage聚合瓷嵌体后的微渗漏,为临床选择树脂水门汀提供参考。方法：40个离体无龋前磨牙按嵌体制洞原则制备近中邻牙合面洞,Ceramage聚合瓷制作树脂嵌体后随机分为4组（n=10）,分别使用Rely X ARC、Rely X Unicem、Panavia F、ResiCem 4种树脂水门汀粘结嵌体。经冷热循环500次品红染色后,金刚砂片平行于牙体长轴沿近远中方向将修复体纵向剖开2次,在体视显微镜下测量染料渗入轴壁、颈壁的深度。结果：在轴壁4种材料微渗漏长度差异有统计学意义（F=8.04,P〈0.05）;Rely X Unicem组的微渗漏值高于Rely X ARC组（q=6.56）、Panavia F组（q=5.579）、ResiCem组（q=5.158）,差异有统计学意义（P〈0.05）,其他3组间差异无统计学意义（P〉0.05）。颈壁：不同材料间的微渗漏差异无统计学意义（F=2.112,P〉0.05）;同材料组的颈壁渗漏程度均显著高于轴壁（P〈0.05）。结论：Rely X Unicem对釉质的封闭效果较差;Rely X ARC、Panavia F、ResiCem均是粘结树脂嵌体理想的粘结剂。
AIM:To compare the microleakage of Ceramage polymerization ceramic inlay after cemented by 4 kinds of resin cement.METHODS:Mesial-occlusal cavity was prepared on 40 extracted caries free premolars.40 Ceramage polymerization ceramic inlays were made and were cemented into the cavities of the teeth by Rely X ARC, Rely X Unicem,Panavia F and ResiCem respectively(n =10).After 500 psychro-thermal cycles,the teeth were stained by fuchsin.The inlays were cut longetively and dye penetration was measured under microscope.RESULTS:In terms of shaft wall,significant difference in microleakage was found among the 4 groups by single factor analysis of variance (F=8.04,P 0.05).In terms of gingival wall,no statistically significant difference of microleakage was found among the 4 groups (F=2.112,P>0.05).In all groups,microleakage in gin-gival wall was significantly higher than that in shaft wall(P<0.05).CONCLUSION:The cementing effect of Rely X Unicem is the poorest among the 4 resin cements.
