Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
Endodontic Residency Program, Saudi Commission for Health Specialist, Riyadh, Saudi Arabia.
Aust Endod J. 2021 Aug;47(2):222-227. doi: 10.1111/aej.12456. Epub 2020 Oct 29.
This study compared the retreatability of filling material from canals filled with BioRoot RCS (Septodont, Saint-Maur-des-Fosses, France) and AH Plus (Dentsply DeTrey, Konstanz, Germany) combined with gutta-percha using micro-computed tomography for evaluation. Thirty-four mandibular premolars were divided into two groups according to the sealer used. Thirty days after obturation, canals were retreated with a ProTaper Universal retreatment system (Dentsply Maillefer, Ballaigues, Switzerland) followed by passive ultrasonic irrigation (PUI). The time taken for retreatment was recorded. The roots were scanned after obturation, after retreatment and after PUI. Data were analysed using the Mann-Whitney and Wilcoxon tests. Canals filled with BioRoot RCS exhibited significantly less remaining filling material than canals filled with AH Plus (P < 0.05). The addition of PUI resulted in a significant decrease in the residual material in both groups (P < 0.05). A significantly shorter retreatment time was reported for the AH Plus group than the BioRoot RCS group (P < 0.05).
本研究比较了使用 Micro-CT 评估的 BioRoot RCS（Septodont，Saint-Maur-des-Fosses，法国）和 AH Plus（Dentsply DeTrey，Konstanz，德国）与牙胶联合填充的根管再治疗能力。34 颗下颌前磨牙根据使用的密封剂分为两组。在封闭后 30 天，使用 ProTaper Universal 再治疗系统（Dentsply Maillefer，Ballaigues，瑞士）进行根管再治疗，随后进行被动超声冲洗（PUI）。记录再治疗所需的时间。封闭后、再治疗后和 PUI 后对牙根进行扫描。使用 Mann-Whitney 和 Wilcoxon 检验分析数据。与 AH Plus 组相比，BioRoot RCS 组的根管内剩余填充物明显减少（P < 0.05）。在两组中，添加 PUI 都会导致残留材料明显减少（P < 0.05）。与 BioRoot RCS 组相比，AH Plus 组的再治疗时间明显更短（P < 0.05）。
