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Future Dental Journal of Egypt

Abstract

Objective: The purpose of the current study was to assess and compare the shaping ability of WaveOne Gold and Reciproc Blue in reciprocation and counter clock wise rotation using standardized resin blocks and to assess time required to reach full working length. Methodology: A total of 52 curved canals in clear resin blocks with 30° angle of curvature and 16mm canal length were used in this study. The blocks were divided into 4 groups according to the instrument and motion utilized into: Reciproc Blue/Reciprocation (RB/R) group, Reciproc Blue/counter clock wise rotation (RB/CCW) group, WaveOne gold/Reciprocation (WG/R) and WaveOne gold/Counter clock wise rotation (WO/RCR). Standardized digital images were taken prior and post instrumentation. Then, Adobe Photoshop was used to superimpose post and pre-instrumentation images to evaluate the degree of canal transportation. Digital chronometer was used to record the time required for canal preparation. One-way ANOVA followed by Tukey post hoc test was used to compare between more than two groups in non-related samples. Results: No statistically significant difference was noted among all groups at the apical and middle thirds levels. As for the preparation time, both groups; RB/R and RB/CCW recorded significantly longer time than groups; WG/R and WG/CCW (P < 0.001). Conclusions: The use of single-file in counter clock wise rotation showed favourable results in terms of avoiding canal transportation and preparation time.

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