Evaluación de centricidad y transportación en conductos instrumentados con waveone® gold con y sin preensanchamiento apical

Abstract

Introduction: The purpose of this study was to evaluate and compare transportation, and centering ability of WaveOne® Gold system with and without glide path preparation by using cone beam computed tomography (CBCT) imaging. Methods: ninety canals of maxillary first molars with curvatures of 25° -35° were divided into 2 experimental groups according to the instrumentation technique as follows: group PG/ WOG (glide path was created with ProGlider® PG) and canals were shaped with WOG system, group WOG (glide path was not performed and canal were shaped with WOG system only). Canals were scanned before and after instrumentation by using CBCT to evaluate root canal transportation and centering ratio at 3, 6, 9 mm from the apex. Data were statiscally analyzed using the statistic software Stata 11. Results: There was no significant difference among tested groups regarding centering radio transportation. At 3mm and 6mmlevels, PG/WOG group showed a lower mean transportation and better centricity. Conclusion: PG/WOG instrumentation method revealed better performance when compare with instrumentation performed with WOG only.