Torsional fatigue resistance of R‐Pilot and WaveOne Gold Glider NiTi glide path reciprocating systems

Aim To evaluate the torsional properties of the NiTi glide path reciprocating instruments R‐Pilot (VDW, Munich, Germany) and WaveOne Gold Glider (Dentsply Sirona, Ballaigues, Switzerland). Methodology Ten R‐Pilot (size 12.5, .04 taper) and 10 WaveOne Gold Glider (size 15, .02v taper) instruments were used. The torque and angle of rotation at failure of new instruments (n = 10) were measured according to ISO 3630‐1. Three millimetres of each instrument tip was clamped to a small load cell by a lever arm linked to the torsion axis. The fracture surface of all fragments was examined with a scanning electron microscope. Data were analysed using the Student t‐test at a significance level of P