Comparative Evaluation of Dentin Removal and Taper of Root Canal Preparation of Hand K File, ProTaper Rotary File, and Kedo S Rotary File in Primary Molars Using Cone-beam Computed Tomography

Various rotary endodontic instruments were used and studied for the root canal preparation of the primary teeth. Recently, a new venture evolved in the field of pediatric endodontic, which was Kedo S rotary files. These are the files designed exclusively for root canal preparation of the primary teeth. AIM: The study aimed to comparatively evaluate the dentin removal and taper of root canal preparation of Hand K files, Rotary Prosper files, and Rotary Kedo S files using cone-beam computed tomography (CBCT) and instrumentation time using stopwatch in primary molars. MATERIALS AND METHODS: Sixty-three root canals of maxillary and mandibular primary molars were included in the study. The root canals were randomly assigned to Hand K file (group I), Rotary ProTaper file (group II), and Rotary Kedo S file (group III). Dentin removal and taper of the root canal preparations were evaluated by using CBCT. RESULTS: All the three file systems do not show any statistical significant differences at middle third and apical third but at coronal third, Kedo S removed significantly less amount of dentin as compared to the Hand K file. Taper of the preparations did not show significant differences, even though the rotary files showed good taper in maximum number of root canals. CONCLUSION: Although not much statistical significant differences were observed in our study, the rotary file system performed slightly better in root canal preparations in primary molars. HOW TO CITE THIS ARTICLE: Seema T, Ahammed H, Parul S, et al. Comparative Evaluation of Dentin Removal and Taper of Root Canal Preparation of Hand K File, ProTaper Rotary File, and Kedo S Rotary File in Primary Molars Using Cone-beam Computed Tomography. Int J Clin Pediatr Dent 2020;13(4):332–336.