Effect of Traditional and Conservative Endodontic Access Cavities on Instrumentation Efficacy of Two Different Ni–Ti Systems: A Micro-CT Study

This study aims to compare the shaping efficiency of nickel–titanium instrument systems, One Reci and ProTaper Ultimate, using micro-CT (micro-computed tomography) in traditional conservative endodontic access cavities. The experimental groups were formed according type cavity Ni–Ti file system be used. Sixty mandibular molar teeth randomly divided into two main groups, (CAC) group (TAC) group, subgroups system. compared with a two-way ANOVA analysis terms volume change, surface area, non-instrumented area transportation, thickness dentin danger zone after root canal preparation. showed no statistically significant differences or preparation (p > 0.05). However, percentage areas post-instrumentation between was higher specimens CAC TAC < Canal transportation at all distances from apical region Within limitations this study, can also used some precautions as an alternative TAC.