不同光固化充填材料边缘微渗漏比较研究  

Effect of different light-cured filling materials on marginal microleakage

作　　者：张凌[1] 朱琳琳[1] 毕静 ZHANG Ling;ZHU Lin-lin;BI Jing.(Department of Endodentics , Hospital of Stomatology , China Medical University, Shenyang 110002, China)

机构地区：[1]中国医科大学附属口腔医院牙体牙髓病科,辽宁沈阳110002

出　　处：《中国实用口腔科杂志》2018年第3期176-178,共3页Chinese Journal of Practical Stomatology

摘　　要：目的评价不同光固化充填材料对窝洞充填修复边缘微渗漏的影响。方法收集2015年6—12月于中国医科大学附属口腔医院就诊患者因正畸需要而拔除的健康前磨牙60颗,在牙体面制备Ⅰ类洞型后将离体牙随机均分成3组,分别充填Z350树脂(A组)、预热后Z350树脂(B组)和Sonic Fill声波树脂(C组)。采用染料渗入法进行修复边缘微渗漏试验,在体视显微镜下检测洞壁的微渗漏情况。结果各组样本均可见微渗漏,C组微渗漏程度明显小于A、B组,差异均有统计学意义(均P<0.05);而B组与A组的微渗漏程度差异无统计学意义(P>0.05)。结论 3种光固化充填材料修复边缘都可能发生微渗漏,Sonic Fill声波树脂较Z350树脂充填可明显减少微渗漏的发生。Objective To evaluate the effect of various light-cured filling materials on marginal microleakage. Methods The cuboid class Ⅰ cavities were cut in 60 freshly extracted human premolars for orthodontic purpose in the Hospital of Stomatology affiliated to China Medical University fi＇om June to December of 2015, and they were randomly divided into 3 groups, filled with Z350 （group A）, Z350 preheat （group B） and SonicFill resin （group C）. After placement of the restorations, each specimen was sectioned buccolingually and then the microleakage at the margin was evaluated under a stereomicroscope. Results There was microleakage in all 3 groups. The microleakage of group C was significantly slighter than the other two groups （P 〈 0.05 ）, hut there was no significant difference between group A and B （P 〉 0.05 ）. Conclusion Marginal microleakage occurs in each of the 3 groups. SonicFili is the dental filling material with lesser marginal microleakage.

关 键 词：微渗漏 复合树脂 光固化 

分 类 号：R78[医药卫生—口腔医学]