Porto Ália Regina Neves de Paula, Moreira Rudá França, Belladonna Felipe Gonçalves, Vieira Victor Talarico Leal, da Silva Emmanuel João Nogueira Leal
Department of Endodontics, School of Dentistry, Grande Rio University (UNIGRANRIO), Rio de Janeiro, RJ, Brazil.
Department of Integrated Clinical Procedures, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
Restor Dent Endod. 2025 Aug;50(3):e29. doi: 10.5395/rde.2025.50.e29. Epub 2025 Aug 29.
This study aimed to assess the influence of two endodontic sealers on the bond strength of glass fiber posts using conventional and self-adhesive resin cement through a push-out test.
Forty central human incisors were randomly divided into four groups (n = 10) based on sealer (epoxy resin- based or calcium silicate-based) and cement (conventional and self-adhesive resin) types: AH Plus (Dentsply De- Trey)/RelyX ARC (3M ESPE), AH Plus/RelyX U200 (3M ESPE), Bio-C Sealer (Angelus)/RelyX ARC, and Bio-C Sealer/RelyX U200. After canal filling and post cementation, roots were sectioned to obtain one specimen per root third. A pushout test and failure pattern assessment were conducted, with bond strength analyzed using the one-way analysis of variance and Tukey test.
AH Plus/RelyX ARC showed the highest bond strength values, with a significant difference in the middle third. The most common failure was mixed (55%), while adhesive failures made up 45%, with 23.5% at the cement/post interface and 21.5% at the cement/dentin interface.
AH Plus/RelyX ARC provided the highest bond strength values for glass fiber posts to dentin.
本研究旨在通过推出试验评估两种根管封闭剂对使用传统树脂水门汀和自粘树脂水门汀的玻璃纤维桩粘结强度的影响。
根据封闭剂（环氧树脂基或硅酸钙基）和水门汀（传统树脂和自粘树脂）类型，将40颗人正中切牙随机分为四组（n = 10）：AH Plus（登士柏德瑞）/RelyX ARC（3M ESPE）、AH Plus/RelyX U200（3M ESPE）、Bio-C封闭剂（安吉利斯）/RelyX ARC和Bio-C封闭剂/RelyX U200。根管充填和桩粘结后，将牙根切片，每个根段获取一个样本。进行推出试验和失败模式评估，使用单因素方差分析和Tukey检验分析粘结强度。
AH Plus/RelyX ARC显示出最高的粘结强度值，在中间段有显著差异。最常见的失败类型是混合性（55%），而粘结失败占45%，其中23.5%发生在水门汀/桩界面，21.5%发生在水门汀/牙本质界面。
AH Plus/RelyX ARC为玻璃纤维桩与牙本质提供了最高的粘结强度值。
