TY - JOUR TI - MICRO-COMPUTED TOMOGRAPHIC EVALUATION OF DENTINAL CRACKS CAUSED BY VARIOUS RECENT FILE SYSTEMS AB - Objectives: The purpose of present study was to evaluate the incidence of dentinal micro-cracks observed after the use of ProTaper Gold (PTG), WaveOne Gold (WOG), OneShape New Generation (OSNG), K3XF nickel-titanium (NiTi) instrumentation systems. Materials and Methods: Sixty extracted human mandibular first molars were randomly assigned to four groups (n = 15). The root canals were instrumented with PTG, WOG, OSNG, and K3XF systems. The cross-sectional images of the roots were screened using high-resolution micro-computed tomography imaging before and after preparation to detect the presence of dentinal cracks. Results: Although there was no statistically significant difference between PTG and WOG systems, WOG caused lesser micro-crack among all groups. K3XF showed statistically fewer cracks than OSNG. K3XF and OSNG systems caused statistically more dentinal micro-cracks than both Gold systems. WOG and PTG systems caused lesser micro-cracks formation among the systems evaluated in present study. Conclusions: All used systems have caused different degrees of crack formations. Furthermore, WOG and PTG systems have shown superior features in terms of creating dentinal cracks according to OSNG, and K3XF systems. Preferring PTG and WOG systems during root canal shaping may minimize microcracks. AU - Zan, Recai AU - altunbaş, demet AU - KUTLU CENGİZ, Gizem AU - TOPCUOĞLU, Hüseyin Sinan AU - hubbezoglu, ihsan DO - 10.7126/cumudj.1081617 PY - 2022 JO - Cumhuriyet Dental Journal VL - 25 IS - 2 SN - 1302-5805 SP - 117 EP - 124 DB - TRDizin UR - http://search/yayin/detay/1129591 ER -