Open AccessIn vitro evaluation of wear and canal transportation using reciprocating instruments: RECIPROC® vs WaveOne® files
Author(s) -
Manuel Marques Ferreira,
Diana Rebelo,
Francisco Caramelo,
Eunice Carrilho,
Marco Antônio Zaiden Loureiro
Publication year - 2013
Publication title -
revista portuguesa de estomatologia, medicina dentária e cirurgia maxilofacial
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.144
H-Index - 8
eISSN - 1647-6700
pISSN - 1646-2890
DOI - 10.1016/j.rpemd.2013.04.001
Subject(s) - reciprocating motion , stereo microscope , significant difference , materials science , orthodontics , dentistry , mathematics , medicine , engineering , composite material , statistics , mechanical engineering , gas compressor
AimTo evaluate the degree of wear and transport index associated with the use of RECIPROC® versus WaveOne®.Materials and methods30 Acrylic cubes with simulated canals were used, all geometrically identical. These were identified and photographed, being randomly assigned to two groups: G1-RECIPROC® using R25 file, and G2-WaveOne® using the Primary file. In both groups the canals were previously catheterized with K10, K15 and K20. The instrumentation was always followed by 2.5% NaOCl irrigation. After the instrumentation, the cubes were photographed again in the stereomicroscope and the resulting images were superimposed using Photoshop CS5 (v12.1, Adobe®), evaluating the differences between the two preparations with ImageJ (v1.45, NIH®) by means of comparative measurements in the apex and at 1, 2, 3, 4, 5 and 6mm.ResultsAll data was evaluated using ANOVA repeated-measurements test after verification with Kolmogorov–Smirnov test. The degree of wear obtained by RECIPROC® (M=201182) was superior and significantly different (p<0.001) than the preparation obtained by WaveOne® (M=148506). The dimension of the effect was very high (ηp2=0.544) being the confidence interval 95%. The transport index for RECIPROC® (M=−68522) was superior and significantly different (p<0.029) than the transport obtained with WaveOne® (M=−39506), being the dimension of the effect moderate (ηp2=0.160) for an IC of 95%.ConclusionsWith the limitations of this pre-clinical study, we conclude that WaveOne® accounts for lower canal wear and superiorly centered preparation when compared with RECIPROC®