Özyurek Taha, Uslu Gülşah, Yilmaz Koray
Ondokuz Mayis University, Faculty of Dentistry, Department of Endodontics, Samsun, Turkey.
Çorum Oral and Dental Health Hospital Çorum, Turkey.
J Dent Res Dent Clin Dent Prospects. 2018 Winter;12(1):6-11. doi: 10.15171/joddd.2018.002. Epub 2018 Mar 14.
The aim of this study was to compare the push-out bond strengths of calcium silicate-based ProRoot MTA and Biodentine cements and SureFil SDR and EverX Posterior bulk-fill composite resins. Twenty-four single-rooted maxillary central incisors were sectioned below the cementoenamel junction, and the root canals were instrumented using rotary files. Thereafter, a parallel post drill was used to obtain a standardized root canal dimension. The roots were randomly assigned to one of the following groups with respect to the intra-orifice barrier used: ProRoot MTA; Biodentine; SureFil SDR; EverX Posterior. Five 1-mm-thick sections were obtained from the coronal aspect of each root. Push-out bond strength testing was performed and data were analyzed with Kruskal-Wallis and post hoc Dunn tests (P<0.05). SureFil SDR and EverX Posterior bulk-fill composite resins' bond strengths were significantly higher than ProRoot MTA and Biodentine calcium silicate cements. However, no statistically significant differences were observed between bulk-fill composite resins values and calcium silicate cement values. Within the limitations of present study, calcium silicate-based ProRoot MTA cement's push-out bond strength was lower than those of Biodentine, SureFil SDR and EverX Posterior materials.
本研究的目的是比较硅酸钙基的ProRoot MTA和Biodentine水门汀以及SureFil SDR和EverX Posterior大块充填复合树脂的推出粘结强度。将24颗单根上颌中切牙在牙骨质釉质界下方进行切片，并使用旋转锉对根管进行预备。此后，使用平行桩钻获得标准化的根管尺寸。根据所使用的口内屏障，将牙根随机分为以下组之一：ProRoot MTA；Biodentine；SureFil SDR；EverX Posterior。从每个牙根的冠方获取五个1毫米厚的切片。进行推出粘结强度测试，并使用Kruskal-Wallis和事后Dunn检验（P<0.05）分析数据。SureFil SDR和EverX Posterior大块充填复合树脂的粘结强度显著高于ProRoot MTA和Biodentine硅酸钙水门汀。然而，在大块充填复合树脂值和硅酸钙水门汀值之间未观察到统计学上的显著差异。在本研究的局限性内，硅酸钙基的ProRoot MTA水门汀的推出粘结强度低于Biodentine、SureFil SDR和EverX Posterior材料。
