Micro-computed Tomographic Analysis of Apical Microcracks before and after Root Canal Preparation by Hand, Rotary, and Reciprocating Instruments at Different Working Lengths.

@article{Oliveira2017MicrocomputedTA,
  title={Micro-computed Tomographic Analysis of Apical Microcracks before and after Root Canal Preparation by Hand, Rotary, and Reciprocating Instruments at Different Working Lengths.},
  author={Bruna Paloma de Oliveira and Andr{\'e}a Cruz C{\^a}mara and Daniel Amancio Duarte and Richard J. Heck and Ant{\^o}nio Celso Dantas Antonino and Carlos Menezes Aguiar},
  journal={Journal of endodontics},
  year={2017},
  volume={43 7},
  pages={1143-1147}
}
INTRODUCTION This study aimed to compare apical microcrack formation after root canal shaping by hand, rotary, and reciprocating files at different working lengths using micro-computed tomographic analysis. METHODS Sixty mandibular incisors were randomly divided into 6 experimental groups (n = 10) according to the systems and working lengths used for the root canal preparation: ProTaper Universal for Hand Use (Dentsply Maillefer, Ballaigues, Switzerland), HyFlex CM (Coltene-Whaledent… CONTINUE READING