Pedullà, E Influence of continuous rotation or reciprocation of Optimum Torque Reverse motion on cyclic fatigue resistance of nickel-titanium rotary instruments. [electronic resource] - International endodontic journal May 2018 - 522-528 p. digital Publication Type: Journal Article ISSN: 1365-2591 Standard No.: 10.1111/iej.12769 doi Subjects--Topical Terms: AlloysEquipment FailureEquipment Failure AnalysisHumansMicroscopy, Electron, ScanningMotionRoot Canal Therapy--instrumentation