Comparing shaping ability and cleaning ability of Fanta, OneCurve, and ProTaper Next Ni-Ti rotary file systems (An in vitro study)

Abstract

This study aimed to compare Fanta, ProTaper Next, and OneCurve rotary Ni-Ti files ‎regarding shaping ability, cleaning ability, and preparation time.‎ Shaping ability was evaluated via assessment of canal transportation, canal centering ‎ability, and percentage of deviation while cleaning ability was evaluated via assessment of the percentage of smear layer ‎and surface area covered with debris. Preparation time was also recorded. The mesiodistal transportation, centering ability, and percentage of deviation ‎were assessed by comparing pre-and post- instrumentation measurements taken on CBCT ‎images at apical, middle, and coronal thirds, while the canal cleanliness was evaluated using ‎the SEM at three levels (apical, middle, coronal).‎ Sixty extracted permanent mandibular first molars were used to evaluate shaping, and cleaning ‎ability. Teeth were decoronated at the cement-enamel junction using a diamond disc; then ‎special measures were taken to ensure standardization and reproducibility of CBCT images. ‎After post-CBCT scan teeth were longitudinally split into 2 equal halves to evaluate cleaning ‎efficiency.‎ Samples were classified into three subgroups (n=20) according to the file system. The result was tabulated and statistically ‎analyzed.‎