Dynamic and cyclic fatigue of engine-driven rotary nickel-titanium endodontic instruments.

  title={Dynamic and cyclic fatigue of engine-driven rotary nickel-titanium endodontic instruments.},
  author={Youssef Ha{\"i}kel and Rene Serfaty and Glenn Bateman and Bruno Senger and Catherine Allemann},
  journal={Journal of endodontics},
  volume={25 6},
The absence of adequate testing standards for engine-driven nickel-titanium (NiTi) instruments necessitates further study of these instruments in all areas. This study examined three groups of engine-driven rotary NiTi endodontic instruments (Profile, Hero, and Quantec) and assessed the times for dynamic fracture in relation to the radius of curvature to which the instruments were subjected during preparation, with the instrument diameter determined by size and taper and the mode by which the… CONTINUE READING
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