Abstract:Objective: This study evaluated the effect of different preparation times on the taper and shape of simulated root canals using the XP-endo Shaper rotary file. Materials and methods: A total of 54 resin blocks made of clear polyacrylic resin with simulated root canals were used in this study. They were photographed using a built-in camera of a stereomicroscope. They were prepared using the XP-endo Shaper instrument up to the working length (WL) according to the manufacturer's recommendation for 30 seconds (s),… Show more
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