Comparing the Shaping Efficiency of Original and Replica-Like Endodontic Instruments: in vitro Study

OpenAlex İngilizce

Objective: Since research on the effectiveness of replica-like files in shaping root canals is limited, this study compared the shaping effectiveness of the original WaveOne Gold (WOG) file system with the replica Scope RS Gold (SC) file system in J-shaped simulated resin blocks. Material and Methods: Root canal preparations were performed in 24 simulated J-shaped root canals using WOG (#25.07) and SC (#25.07) files (n=12). The pre- and post-operative images of the prepared root canals were superimposed. The root canals in the images were divided into 9 segments of 1 millimeter each, and a total of 18 measurements were obtained from both canal surfaces. The inner and outer root canal walls were named B and A, respectively. The total resin removal amount (TRR) (A+B), the transportation value and direction (TV) (lB-Al), and the centering ability (CA) (A/B or B/A) were calculated. One-way analysis of variance and posthoc Tukey tests were used for statistical analysis (p<0.05). Results: When TRR was evaluated, the SC instruments removed more resin in the apical, middle, and coronal thirds (p<0.05). When TV was evaluated, no difference was observed between the groups in the coronal third (p>0.05), while the SC instruments caused more transportation in the apical and middle thirds (p<0.05). Moreover, no statistically significant difference was found in terms of the instruments' CA in the apical, middle, and coronal thirds (p>0.05). Conclusion: The replicalike system exhibited significantly higher values in terms of resin removal and canal transportation.