Evaluation of ultrasonic and sonic instruments for intraradicular post removal.

  title={Evaluation of ultrasonic and sonic instruments for intraradicular post removal.},
  author={J Buoncristiani and B G Seto and Angelo Anthony Caputo},
  journal={Journal of endodontics},
  volume={20 10},
Ultrasonic instruments are a valuable asset for removing intraradicular posts from root canals before nonsurgical endodontic therapy. The purpose of this study was to evaluate the relative efficacy of post removal by ultrasonic and sonic devices. Fifty extracted teeth were instrumented and obturated. The canals were prepared and Parapost #5 posts were cemented with zinc phosphate cement. The teeth were divided into five groups, subjected to ultrasonic or sonic instrumentation and the time… CONTINUE READING

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