Glide Path Management with Single- and Multiple-instrument Rotary Systems in Curved Canals: A Micro-Computed Tomographic Study.

Autor:	Kirchhoff AL; Endodontic Fellowship Program, University of Manitoba, Winnipeg, Manitoba, Canada., Chu R; Department of Restorative Dentistry, Discipline of Endodontics, University of Manitoba, Winnipeg, Manitoba, Canada., Mello I; Department of Dental Clinical Sciences, Division of Endodontics, Dalhousie University, Halifax, Nova Scotia, Canada., Garzon AD; Discipline of Endodontics, University of Toronto, Toronto, Ontario, Canada., dos Santos M; Discipline of Endodontics, University of São Paulo, São Paulo, São Paulo, Brazil., Cunha RS; Department of Restorative Dentistry, Discipline of Endodontics, University of Manitoba, Winnipeg, Manitoba, Canada. Electronic address: rodrigo.cunha@umanitoba.ca.
Jazyk:	angličtina
Zdroj:	Journal of endodontics [J Endod] 2015 Nov; Vol. 41 (11), pp. 1880-3. Date of Electronic Publication: 2015 Sep 26.
DOI:	10.1016/j.joen.2015.07.014
Abstrakt:	Introduction: Securing a reproducible glide path before instrumentation is recommended to maintain the original geometry of the root canal system and to prevent file separation. Mechanical glide path management systems have been introduced to expedite this step. The aim of this study was to compare apical transportation, canal volume increase, and working time during glide path management with ProGlider (PG; Dentsply Tulsa Dental Specialties, Tulsa, OK) and PathFiles (PF, Dentsply Tulsa Dental Specialties). Methods: Forty curved mesial canals of mandibular molars were randomly allocated into 2 experimental groups (n = 20) according to the glide path management system: PG or PF. A glide path was achieved according to the manufacturers' protocol. Micro-computed tomographic analysis was performed to assess apical transportation at 1, 3, and 5 mm and volume increase. The time required to achieve the glide path was measured. Results: The overall apical transportation mean values (± standard error) were 13.33 ± 3.37 μm for PG and 19.21 ± 4.4 μm for PF (P > .05). The mean (± standard error) volume increase values were 0.49 ± 0.06 mm(3) for PG and 0.48 ± 0.06 mm(3) for PF (P > .05). A statistically significant difference in the working time was found between the groups (P < .0001) where the mean (± standard error) values for time were 7.38 ± 1.73 seconds for PG and 20.61 ± 5.54 seconds for PF. Conclusions: Similar apical transportation and volume increase occurred during glide path management with PG single-file and PF multi-file systems; however, PG achieved glide path faster than PF. (Copyright © 2015 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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