MOTORIZED RECIPROC FILE WITH MEMORY (ERC25405025) (Motorized file for chemomechanical root canal preparation). ¨ This innovative system has the following special features. ¨ The S-shaped cutting tip cross-section allows smooth and atraumatic root canal preparation. ¨ The function of simultaneous enlargement and opening is due to the semi-rotation counter-clockwise by 150 degrees and clockwise by 30 degrees, allowing smooth and unobstructed enlargement. ¨ The semi-rotary motion allows easy removal of debris from the root canal. ¨ The thermal treatment of the NiTi alloy provides a very high elastic limit and resistance to repeated annealing cycles.