Departament of Endodontics, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil.
PUC Campinas, Center of Life Sciences, Programa de pós-graduação em Ciências da Saúde, Campinas, São Paulo, Brazil.
J Endod. 2024 Mar;50(3):376-380. doi: 10.1016/j.joen.2023.12.004. Epub 2023 Dec 24.
The purpose of this study was to evaluate the ability of the Reciproc, Reciproc Blue, and WaveOne Gold systems to remove filling material during endodontic retreatment of extracted human mandibular premolars.
Thirty-nine teeth were instrumented with the Protaper Universal System to the F3 file and filled with the Tagger hybrid technique using an F3 gutta-percha cone and AH Plus cement. At the end of this period, the teeth were scanned with micro-computed tomography before and after removal of the filling material from the root canals. The teeth were divided into 3 groups (n = 13) based on the apical volume, depending on the systems used to remove the filling material. Group GR: Reciproc 40/.06; Group GRB: Reciproc Blue 40/.06; and Group GWG: WaveOne Gold 35/.06. The results were statistically analyzed using the tests of Kruskal-Wallis, Duncan, and analysis of variance at a significance level of 5%.
The results showed that there were no significant differences between the amounts of filling material removed, either for the apical and middle regions alone or in the overall evaluation for the 3 groups (P = .97). The time evaluation statistically showed that the GR and GWG groups required less time to clean the root canals than the GRB group.
Reciproc R40 files and WaveOne Gold Medium files required less time for endodontic treatment than Reciproc Blue R40 files. There was no difference in the ability to remove obturation material between the 3 instruments. No instrument was able to completely remove the filling material from the root canals.
本研究旨在评估 Reciproc、Reciproc Blue 和 WaveOne Gold 系统在去除下颌前磨牙根管内充填材料方面的能力。
39 颗牙齿采用 Protaper Universal 系统进行器械预备至 F3 锉，并采用 Tagger 混合技术进行充填，使用 F3 牙胶尖和 AH Plus 根管封闭剂。在此期间结束后，在从根管中去除充填材料前后，用微计算机断层扫描对牙齿进行扫描。根据去除充填材料所使用的系统，将牙齿分为 3 组（n=13），根据根尖体积。GR 组：Reciproc 40/.06；GRB 组：Reciproc Blue 40/.06；GWG 组：WaveOne Gold 35/.06。使用 Kruskal-Wallis、Duncan 和方差分析检验对结果进行统计学分析，显著性水平为 5%。
结果表明，3 组之间去除的充填材料量无论是在根尖和中部区域还是在整体评估中均无显著差异（P=0.97）。时间评估表明，GR 和 GWG 组清洁根管所需的时间少于 GRB 组。
Reciproc R40 锉和 WaveOne Gold 中号锉进行根管治疗所需的时间比 Reciproc Blue R40 锉短。这 3 种器械在去除封闭材料的能力方面没有差异。没有一种器械能够将根充材料完全从根管中清除。
