BMC Research Notes (Jan 2019)

Analysis of reciprocating system real-time torque variation during root canal preparation

  • Flares Baratto-Filho,
  • Jéssica Vavassori de Freitas,
  • Marilisa Carneiro Leão Gabardo,
  • Flávia Sens Fagundes Tomazinho,
  • Jardel Francisco Mazzi-Chaves,
  • Manoel Damião de Sousa-Neto

DOI
https://doi.org/10.1186/s13104-019-4080-z
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 6

Abstract

Read online

Abstract Objective This study monitored real-time torque variation of the WaveOne Gold (WOG) and Reciproc Blue (RB) during root canal preparation of mandibular molars. Thirty-six mandibular molars were prepared with WOG Primary 25.07 (WOGP, n = 36) and the RB R25 25.08 (RBR25, n = 36) for the mesial canals, whereas WOG Large 45.05 (WOGL, n = 18) and RB R40 40.06 (RBR40, n = 18) for the distal. Canal preparation was divided into thirds and the torque, maximum torque and time, were recorded. Results The RBR25 instruments exhibited higher maximum torque in the apical third in contrast to the WOGP instruments (p 0.05). The RBR25 had the highest torque when compared to the WOGP. Both instruments exhibited higher torque in the apical third and there were no significant differences between the instruments in the distal canal.

Keywords