Dentinal Microcracks after Root Canal Instrumentation Using Instruments Manufactured with Different NiTi Alloys and the SAF System: A Systematic Review

Aim: The aim of this systematic analysis was to assess the prevalence dentinal microcracks at various levels (3, 6, and 9 mm from apex) after using instruments made with conventional, R-Phase, M-Wire NiTi alloys SAF system. Materials Methods: Electronic searches were conducted in databases Embase, Cochrane Library, Scopus, PubMed, Web Science. To arrange search methods, “MeSH” terms and/or keywords typically associated subject paired Boolean operators “AND” “OR.” Additional on websites four separate endodontic journals. After reading titles excluding duplicates, 1000 1343 documents originally found eliminated. Upon reviewing abstracts, 310 remaining 343 experiments also Based qualifying requirements, only 13 33 articles included qualitative review. Results: All systems triggered microcracks; however, when chemo-mechanical preparation performed Self-Adjusting File (SAF) manufactured R-phase technology—K3XF Twisted Adaptive (TFA)—less these defects compared those traditional NiTi—ProTaper Universal Mtwo—and M-Wire—ProTaper Next, Reciproc, WaveOne. Conclusions: A lower observed R-phase.