Shaping ability of EndoSequence rotary NiTi system

Objectives: The aim of this study was to assess the shaping ability of EndoSequence rotary NiTi system and compare it with three commonly used rotary NiTi systems. Materials and Methods: A total of forty resin simulated root canal blocks were instrumented with ProTaper, RaCe, EndoSequence and Profile to size #30 as MAF (n=10). Pre- and post-instrumentation images were superimposed and evaluated for presence of zipping, ledging or perforation. Further analysis was done by calculating the amount of transportation at the middle and the apical thirds. Data were analyzed using appropriate statistical methods. Results: EndoSequence and RaCe groups took significantly less instrumentation time compared with Profile and ProTaper groups (p-value<0.05). Non-significant difference was found among the groups in terms of zipping, ledging and perforation (p-value>0.05). Conclusion: Under the conditions of this study EndoSequence rotary NiTi files prepared simulated canals rapidly and safely, with minimal canal aberration.