Effect of glide path preparation on apical debris extrusion of rotary and reciprocating single-file systems: OneShape versus WaveOne

Abstract

Objectives: To assess the effect of glide path on the amount of apically extruded debris afterinstrumentation with WaveOne and OneShape.Materials & Methods: Forty-eight extracted human mandibular incisors were assigned to4 groups. In groups 1 and 2, preparation was completed with WaveOne, in groups 3 and 4 canalswere prepared with OneShape. Before instrumentation, in groups 1 and 3, glide path was createdwith PathFile 1, 2, and 3 at working length, whereas in groups 2 and 4, glide path was notperformed. The weight of the extruded debris for each group was calculated by comparing thepre- and post-instrumentation weights of the eppendorf tubes. The time required for reachingfull WL was also recorded. Data were analysed by Kruskal Wallis and Mann Whitney U tests.Results: There was no difference in the amount of debris extruded between the single filesystems (P=0.234). Time required to reach full WL was significantly decreased by creating aglide path (P< 0.05). Conclusions: Creation of a glide path does not significantly affect the apically extruded debris.