Force-deflection characteristics of the fatigue-resistant device spring: an in vitro study.

@article{ElSheikh2007ForcedeflectionCO,
  title={Force-deflection characteristics of the fatigue-resistant device spring: an in vitro study.},
  author={Moaaz Mohamed El-Sheikh and Keith Godfrey and Montein Manosudprasit and Nita Viwattanatipa},
  journal={World journal of orthodontics},
  year={2007},
  volume={8 1},
  pages={30-6}
}
AIM The Forsus fatigue-resistant device spring is a 3-piece telescoping compression spring used for Class II correction. The aims of this study were: (1) to measure the mean force delivered at different amounts of deflection; (2) to determine and compare the mean stiffness between loading and unloading; and (3) to determine the resilience of the fatigue-resistant device springs. MATERIAL AND METHODS Twelve fatigue-resistant device springs were tested with a universal testing machine and… CONTINUE READING