Serin Buse Ayse, Dogan Muharrem Cem, Yoldas Hamdi Oguz
Department of pediatric dentistry, Faculty of Dentistry, University of Cukurova Adana-Turkey.
Department of Restorative dentistry, Faculty of Dentistry, University of Cukurova.Adana-Turkey.
J Dent Res Dent Clin Dent Prospects. 2018 Winter;12(1):1-5. doi: 10.15171/joddd.2018.001. Epub 2018 Mar 14.
Mineral trioxide aggregate (MTA) is a material that has recently gained popularity in the application of the vital pulp therapy. Along with the increasing use of MTA to this end, the permanent restoration material to be placed on MTA has become a significant issue. The aim of this in vitro study was to investigate the bond strength of the novel low-shrinkage silorane-based composite resin (SBC) to MTA. Twenty acrylic blocks filled with MTA were prepared for this study. SBC was the test group and methacrylate-based composite resin (MBC) was used as the control group. Shear bond strength test was performed to determine the bond strength. The surfaces of broken samples were evaluated under a stereomicroscope and grouped as adhesive, cohesive and mixed. Data were examined by statistical analysis. Statistical analysis revealed that SBC exhibited higher shear bond strength than the control group. It was observed that most of the failures in the test group were of cohesive type within MTA. Based on the results, SBC showed higher shear bond strength than the control group; however, clinical follow-up is needed to evaluate the clinical success.
三氧化矿物凝聚体（MTA）是一种近年来在牙髓活力保存治疗应用中颇受青睐的材料。随着MTA在这方面使用的增加，用于覆盖MTA的永久性修复材料成为一个重要问题。本体外研究的目的是探讨新型低收缩率的硅烷化复合树脂（SBC）与MTA之间的粘结强度。本研究制备了20个填充有MTA的丙烯酸树脂块。SBC为试验组，甲基丙烯酸酯类复合树脂（MBC）用作对照组。进行剪切粘结强度试验以确定粘结强度。在体视显微镜下评估断裂样本的表面，并分为粘结性、内聚性和混合性三类。数据通过统计分析进行检验。统计分析表明，SBC的剪切粘结强度高于对照组。观察到试验组中的大多数失败是MTA内部的内聚性类型。基于这些结果，SBC的剪切粘结强度高于对照组；然而，需要进行临床随访以评估临床效果。
