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Author(s): Ranya Faraj Elemam
José António Capelas
Mário Vaz
Nuno Viriato
Maria de Lurdes Ferreira Lobo Pereira
Álvaro Azevedo
Title: In vitro evaluation of root canal transportation after use of BT-Race files
Issue Date: 2016
Abstract: Objective: To evaluate the effect of repeated use on the shaping ability of the BT-Race instrument.Methods: Thirty-six canals in resin blocks were allocated into six groups. Glide paths wereflooded with alcohol while canals were prepared using a crown-down technique to a finalapical size of 35/.04. Pre- and post-instrumentation images were taken using macroscopicmagnifier, layered by PaintShop Pro9 software, and canaltransportation was measured usingSolidwork CAD 2014 in apical, middle and coronal levels. Data were analyzed using a GeneralLinear Model with a 0.05 significance level.Results: When the number of uses only was considered,there were no statistically significantdifferences in transportation (F = 0.453; p = 0.808). No statistically significant differences werefound in transportation in the interdependence influence of the locations and the numberof uses of the files (F = 0.746; p = 0.691). There were statistically significant differences in thismeasure between the locations when all groups about number of uses (F = 22.358; p < 0.0005)were considered. The largest measures were seen at five and seven millimeters from theapex and the shortest ones in the apical area. The direction of transportation was towardthe outer side of the curvature in the apical level and toward the inner side in the middleand coronal parts.Conclusion: BT-Race file respects the canal morphology well and was safe to use repeatedlywith few incidences of transportation.
Subject: Ciências da Saúde, Ciências médicas e da saúde
Health sciences, Medical and Health sciences
Scientific areas: Ciências médicas e da saúde
Medical and Health sciences
Document Type: Artigo em Revista Científica Nacional
Rights: openAccess
Appears in Collections:FEUP - Artigo em Revista Científica Nacional
FMDUP - Artigo em Revista Científica Nacional

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