The effectiveness of manual and mechanical instrumentation for the retreatment of three different root canal filling materials.

@article{Somma2008TheEO,
  title={The effectiveness of manual and mechanical instrumentation for the retreatment of three different root canal filling materials.},
  author={Francesco Somma and Giuseppe Cammarota and Gianluca Plotino and N M Grande and Cornelis Hans Pameijer},
  journal={Journal of endodontics},
  year={2008},
  volume={34 4},
  pages={466-9}
}
The aim of this study was to compare the effectiveness of the Mtwo R (Sweden & Martina, Padova, Italy), ProTaper retreatment files (Dentsply-Maillefer, Ballaigues, Switzerland), and a Hedström manual technique in the removal of three different filling materials (gutta-percha, Resilon [Resilon Research LLC, Madison, CT], and EndoRez [Ultradent Products Inc, South Jordan, UT]) during retreatment. Ninety single-rooted straight premolars were instrumented and randomly divided into 9 groups of 10… CONTINUE READING
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