Comparison of shaping ability of RaCe and Hero Shaper instruments in simulated curved canals.

Objective: This study compared the shaping ability of Hero Shaper and RaCe instruments in simulated curved canals.

Study Design: Forty simulated canals in resin blocks were divided into 2 experimental groups, each comprising 20 resin blocks, and prepared with Hero Shaper and RaCe using the crown-down technique. Preoperative and postoperative photographs, recorded using a digital camera, were superimposed and aberrations were recorded.