Department of Endodontics, School of Dentistry-Grande Rio University (UNIGRANRIO), Duque de Caxias, RJ, Brazil; Department of Endodontics, Rio de Janeiro State University (UERJ), Rio de Janeiro, RJ, Brazil; Department of Endodontics, Fluminense Federal University (UFF), Niterói, RJ, Brazil.
Department of Periodontology, Veiga de Almeida University (UVA), Rio de Janeiro, RJ, Brazil.
J Evid Based Dent Pract. 2019 Sep;19(3):221-235. doi: 10.1016/j.jebdp.2019.04.004. Epub 2019 Apr 18.
The aim of the present systematic review was to evaluate if epoxy resin-based root canal sealers present superior push-out bond strength compared to calcium silicate-based root canal sealers.
The inclusion criteria consisted of in vitro studies that compared the push-out bond strength of epoxy resin-based and calcium silicate-based sealers. A systematic search was performed in the following databases for articles published until February 2018: PubMed, ScienceDirect, Scopus, Web of Science, and OpenGrey. The quality assessment and data extraction of the selected articles were performed. A meta-analysis of the pooled data and the subgroups according to the root thirds was carried out using the RevMan software (P < .05).
The search resulted in 2292 studies. After the duplicate studies were removed and the title and abstract were read, 20 studies were selected and 17 were considered as having a low risk of bias. The pooled meta-analysis comparing epoxy resin-based (n = 467) and paste-to-paste calcium silicate-based root canal sealers (n = 467) demonstrated higher mean push-out bond strength values (P < .001) for the epoxy resin-based root canal sealers; the heterogeneity among studies was 85% (I). The comparisons between epoxy resin-based (n = 358) and premixed ready-to-use calcium silicate-based root canal sealers (n = 358) also demonstrated a significant difference between the sealers (P < .05), with an I of 95%. The subgroup analysis showed that only in the middle third, were increased bond strength values for epoxy resin-based sealer observed (P < .001), with an I of 94%.
The epoxy resin-based sealer demonstratedhigher push-out bond strength than paste-to-paste calcium silicate-based root canal sealer regardless of the root third assessed. In addition, the epoxy resin-based sealer exhibited increased push-out bond strength in comparison with premixed ready-to-use calcium silicate-based root canal sealer when evaluating the middle third.
本系统评价的目的是评估基于环氧树脂的根管封闭剂与基于硅酸钙的根管封闭剂相比，是否具有更高的推出粘结强度。
纳入标准为比较基于环氧树脂和硅酸钙的根管封闭剂推出粘结强度的体外研究。对截至 2018 年 2 月发表的文章，在以下数据库中进行了系统检索：PubMed、ScienceDirect、Scopus、Web of Science 和 OpenGrey。对选定文章进行质量评估和数据提取。使用 RevMan 软件对合并数据和根据根三分位进行的亚组进行荟萃分析（P<.05）。
搜索结果产生了 2292 项研究。在去除重复研究并阅读标题和摘要后，选择了 20 项研究，其中 17 项被认为具有低偏倚风险。比较基于环氧树脂（n=467）和糊剂到糊剂的硅酸钙基根管封闭剂（n=467）的荟萃分析显示，基于环氧树脂的根管封闭剂的平均推出粘结强度值更高（P<.001）；研究之间的异质性为 85%（I）。基于环氧树脂（n=358）和预混合即用型硅酸钙基根管封闭剂（n=358）的比较也表明两种封闭剂之间存在显著差异（P<.05），I 为 95%。亚组分析显示，只有在中三分之一，观察到基于环氧树脂的封闭剂的粘结强度值增加（P<.001），I 为 94%。
基于环氧树脂的封闭剂的推出粘结强度高于糊剂到糊剂的硅酸钙基根管封闭剂，无论评估的根三分位如何。此外，在评估中三分之一时，与预混合即用型硅酸钙基根管封闭剂相比，基于环氧树脂的封闭剂的推出粘结强度增加。
