A Novel Criterion to Evaluate Mechanical Properties of Nickel-Titanium Rotary Instruments: The Operative Torque
Author(s): Alessio Zanza, Gabriele Miccoli, Marco Seracchiani, Rodolfo Reda, Luca Testarelli*
rotary instruments in the clinical practice, instrumentation procedures have become easier, faster, and safer. These improvements are related to their stress resistance characteristics, which allow avoiding their intracanal separation, because of excessive cyclic fatigue or torsional stress. An accurate radiographic three-dimensional analysis, with CBCT, allows clinicians to choose the most suitable instruments and reduce the risk of iatrogenic errors.