Elnawawy Mohamed Samir A, Pullishery Fawaz, Alattas Mustafa Hussein, Gerfa Tawassul A, Khambashi Batool O, Almahallawi Haneen T, Baghdadi Ghaidaa N, Abdelaziz Tamer D
Operative Dentistry and Endodontics, Dentistry Program, Batterjee Medical College, Jeddah, SAU.
Dental Public Health, Dentistry Program, Batterjee Medical College, Jeddah, SAU.
Cureus. 2023 Nov 26;15(11):e49426. doi: 10.7759/cureus.49426. eCollection 2023 Nov.
Introduction The utilization of endodontic sealers is of paramount importance in ensuring the sustained efficacy and resilience of endodontic treatment. The primary objective of the research was to appraise and contrast the fracture resistance (FR) of three distinct categories of endodontic sealing materials that are frequently employed in the context of endodontic therapy. Materials and methods This research used an in vitro experimental design. Sixty single-rooted human teeth indicated for extraction were utilized according to established protocols. These teeth were then arbitrarily divided into four piles, one for each of the four possible sealants. All specimens were put through a standardized thermal cycling procedure to simulate clinical conditions after the root canals were obturated. The subsequent step involved testing the FR of each group by utilizing a universal testing machine up until failure. Any statistically significant difference in FR among the three sealing materials was identified through appropriate statistical analysis. Results Group 1, which utilized a particular sealing material, exhibited the highest mean fracture resistance, measuring at an impressive 1198.33 ± 321.4 Newtons (N). A post hoc analysis was done to see the exact differences between each group and statistically significant differences between Groups 1 and 2 (p<0.05), Groups 1 and 4 (p<0.05), and Groups 3 and 4 (p<0.001) were observed. Conclusion The FR of Group 1 specimens were noticeably greater than those of Group 2 and Group 4 while the FR of Group 3 specimens was more than that of the Group 4 specimens. This study provides important insights into the fracture resistance of various endodontic sealing materials.
引言 根管封闭剂的使用对于确保根管治疗的持续疗效和稳定性至关重要。本研究的主要目的是评估和对比三种常用于根管治疗的不同类型根管封闭材料的抗折强度（FR）。
材料与方法 本研究采用体外实验设计。按照既定方案使用60颗拟拔除的单根人牙。然后将这些牙齿随机分为四组，每组对应一种可能的封闭剂。所有标本在根管充填后都经过标准化的热循环程序以模拟临床情况。接下来的步骤是使用万能试验机测试每组的抗折强度，直至失效。通过适当的统计分析确定三种封闭材料之间抗折强度的任何统计学显著差异。
结果 第1组使用特定的封闭材料，表现出最高的平均抗折强度，达到令人印象深刻的1198.33±321.4牛顿（N）。进行了事后分析以查看每组之间的确切差异，观察到第1组和第2组（p<0.05）、第1组和第4组（p<0.05）以及第3组和第4组（p<0.001）之间存在统计学显著差异。
结论 第1组标本的抗折强度明显高于第2组和第4组，而第3组标本的抗折强度高于第4组标本。本研究为各种根管封闭材料的抗折强度提供了重要见解。
