Microtomography evaluation of glide path length influence on volume and apical limit of root canal fillings

Lincoln De Campos Fruchi, Rodrigo Ricci Vivan, Murilo Priori Alcalde, Flaviana Bombarda Andrade, Marco Antonio Hungaro Duarte

Objective: The objective of the present study was to evaluate the influence of the glide path length on the apical volume and limit of root canal fillings using PathFile instruments. Methods: Thirty-four root canals from seventeen mesial roots of mandibular molars were divided into two groups based on the glide path length created using #13, #16, and #19 PathFile instruments: Group 1 (G1) – full root canal length; Group 2 (G2) – 1 mm short of the apical foramen. Next, the root canals were instrumented with the Reciproc R25 until 1 mm short of the apical foramen in both groups and filled with AHPlus and gutta-percha using the single cone technique. The volume of material used to fill the 3 mm apical portions of the canals and the distance from the filling to the apical foramen were determined through microtomography. The data were compared statistically and the Mann-Whitney test was used to evaluate differences between groups. Results: No statistically significant difference was observed for the volume of the material used to fill the canals between groups (p > 0.05). However, the distance between the apical limit of the filling material and the apical foramen was significantly different between groups G1 (0.4335 mm) and G2 (1.241 mm) (p < 0.05). Conclusions: The creation of a glide path within the root canal length favors a limit of the root canal filling closer to the apex that was statically significant, although it was not significant regarding to the volume.

Keywords: Endodontics. Root canal obturation. X-Ray Microtomography.

How to cite: Fruchi LC, Vivan RR, Alcalde MP, Andrade FB, Duarte MAH. Microtomography evaluation of glide path length influence on volume and apical limit of root canal fillings. Dental Press Endod. 2017 May-Aug;7(2):15-20. DOI: https://doi.org/10.14436/2358-2545.7.2.015-020.oar

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