RECIPROC MOTORIZED FILE WITH MEMORY (ERC25405025) (Motorized file for chemomechanical root canal enlargement). This innovative system has the following special features: The S-shaped cutting tip cross-section allows smooth and atraumatic root canal enlargement. The function of simultaneous enlargement and opening is due to the semi-rotation of 150 degrees counter-clockwise and 30 degrees clockwise, allowing smooth and unhindered enlargement. The semi-rotary motion allows for 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 firing cycles.