This scoping review study aimed to map the evidence about solvents' use for gutta‐percha dissolution and removal during endodontic retreatments. The study protocol followed the Joanna Briggs Institute guidelines, available online (https://osf.io/5vy8n/). Reporting was based on PRISMA Extension for Scoping Reviews. We selected dentistry studies that considered the effectiveness of solvents in gutta‐percha dissolution in endodontic retreatments and compared their performance to the use of instrumentation techniques without solvents. The search and study screening were performed in PubMed and Scopus databases by two independent researchers. A descriptive analysis considered the study design, method/technique used for obturation, method/technique used for instrumentation during retreatment, solvent solutions tested, exposure time, and main findings. A total of 41 studies were included. Despite that, most studies suggested that solvents' use may complicate root canal cleanliness, regardless of the type of instrumentation used, and facilitate the presence of gutta‐percha remnants in the root surface. Thus, the use of solvents should be avoided and its use should only be considered if the previous working length was not possible to access without it. Despite that, high heterogeneity was observed, further studies are still encouraged comparing the performance and effects of different solvents in different clinical scenarios.

中文翻译：

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在牙髓再治疗期间使用溶剂溶解/去除牙胶：范围审查

这项范围审查研究旨在绘制关于在牙髓再治疗期间溶剂用于牙胶溶解和去除的证据。该研究方案遵循 Joanna Briggs Institute 指南，可在线获取 (https://osf.io/5vy8n/)。报告基于 PRISMA Extension for Scoping Review。我们选择了考虑溶剂在牙髓再治疗中溶解牙胶的有效性的牙科研究，并将其性能与使用不含溶剂的器械技术进行比较。搜索和研究筛选由两名独立研究人员在 PubMed 和 Scopus 数据库中进行。描述性分析考虑了研究设计、用于封闭的方法/技术、用于再处理期间仪器的方法/技术、测试的溶剂溶液、暴露时间、和主要发现。共纳入 41 项研究。尽管如此，大多数研究表明，无论使用何种器械，溶剂的使用都可能使根管清洁变得复杂，并促进牙根表面存在牙胶残留物。因此，应避免使用溶剂，并且只有在没有它的情况下无法访问之前的工作长度时才应考虑使用它。尽管如此，观察到高度异质性，仍鼓励进一步研究比较不同溶剂在不同临床情况下的性能和效果。并促进根表面存在古塔胶残留物。因此，应避免使用溶剂，并且只有在没有它的情况下无法访问之前的工作长度时才应考虑使用它。尽管如此，观察到高度异质性，仍鼓励进一步研究比较不同溶剂在不同临床情况下的性能和效果。并促进根表面存在古塔胶残留物。因此，应避免使用溶剂，并且只有在没有它的情况下无法访问之前的工作长度时才应考虑使用它。尽管如此，观察到高度异质性，仍鼓励进一步研究比较不同溶剂在不同临床情况下的性能和效果。