The effect of using files with altered tips in a sonic handpiece: an in vitro study.

@article{Dummer1993TheEO,
  title={The effect of using files with altered tips in a sonic handpiece: an in vitro study.},
  author={Paul Michael Howell Dummer and Ron Hutchings and F R Hartles},
  journal={International endodontic journal},
  year={1993},
  volume={26 4},
  pages={209-17}
}
The objective of this study was to establish the effect of altering the non-cutting tips on Shaper files during canal preparation with the MM1500 Sonic Air handpiece. A total of 90 simulated canals in clear resin blocks of various angles and positions of curvature were prepared using Shaper files activated by an MM1500 Sonic Air handpiece. Thirty canals… CONTINUE READING