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Apical transportation of manual NiTi instruments and a hybrid technique in severely curved simulated canals

AIM: To evaluate the apical transportation induced by two instrumentation techniques in severely curved simulated canals. MATERIALS AND METHODS: Forty simulated canals were divided into two groups (n = 20), according to the following instrumentation techniques: ProTaper Universal Manual System and a...

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Autores principales: Gonçalves, Aurenaila Nascimento, da Frota, Matheus Franco, Sponchiado Júnior, Emilio Carlos, de Carvalho, Fredson Marcio Acris, da Fonseca Roberti Garcia, Lucas, Franco Marques, André Augusto
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4693313/
https://www.ncbi.nlm.nih.gov/pubmed/26752834
http://dx.doi.org/10.4103/0972-0707.168796
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author Gonçalves, Aurenaila Nascimento
da Frota, Matheus Franco
Sponchiado Júnior, Emilio Carlos
de Carvalho, Fredson Marcio Acris
da Fonseca Roberti Garcia, Lucas
Franco Marques, André Augusto
author_facet Gonçalves, Aurenaila Nascimento
da Frota, Matheus Franco
Sponchiado Júnior, Emilio Carlos
de Carvalho, Fredson Marcio Acris
da Fonseca Roberti Garcia, Lucas
Franco Marques, André Augusto
author_sort Gonçalves, Aurenaila Nascimento
collection PubMed
description AIM: To evaluate the apical transportation induced by two instrumentation techniques in severely curved simulated canals. MATERIALS AND METHODS: Forty simulated canals were divided into two groups (n = 20), according to the following instrumentation techniques: ProTaper Universal Manual System and a hybrid technique. The simulated canals in the ProTaper group were prepared following the technique recommended by the manufacturer: SX files in the cervical third of the root canal and S1, S2, and F1 files up to the working length. In the hybrid group, preparation was performed with K-files sizes 15, 20, and 25 to the working length, followed by cervical preparation with Gates Glidden burs 1, 2, and 3. Apical finishing was performed with the ProTaper manual files S2 and F1. To analyze apical transportation, the simulated canals were photographed before and after preparation at ×8. The images of the root canals pre- and post-instrumentation were superimposed to measure the distance between the inner and outer walls along the first 3 mm of the apical third. RESULTS: The hybrid group presented the highest apical transportation values; however, with no statistically significant difference in comparison with the ProTaper group (P > 0.05). CONCLUSIONS: Both techniques induced similar apical transportation in the original path of the simulated root canals.
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spelling pubmed-46933132016-01-08 Apical transportation of manual NiTi instruments and a hybrid technique in severely curved simulated canals Gonçalves, Aurenaila Nascimento da Frota, Matheus Franco Sponchiado Júnior, Emilio Carlos de Carvalho, Fredson Marcio Acris da Fonseca Roberti Garcia, Lucas Franco Marques, André Augusto J Conserv Dent Original Article AIM: To evaluate the apical transportation induced by two instrumentation techniques in severely curved simulated canals. MATERIALS AND METHODS: Forty simulated canals were divided into two groups (n = 20), according to the following instrumentation techniques: ProTaper Universal Manual System and a hybrid technique. The simulated canals in the ProTaper group were prepared following the technique recommended by the manufacturer: SX files in the cervical third of the root canal and S1, S2, and F1 files up to the working length. In the hybrid group, preparation was performed with K-files sizes 15, 20, and 25 to the working length, followed by cervical preparation with Gates Glidden burs 1, 2, and 3. Apical finishing was performed with the ProTaper manual files S2 and F1. To analyze apical transportation, the simulated canals were photographed before and after preparation at ×8. The images of the root canals pre- and post-instrumentation were superimposed to measure the distance between the inner and outer walls along the first 3 mm of the apical third. RESULTS: The hybrid group presented the highest apical transportation values; however, with no statistically significant difference in comparison with the ProTaper group (P > 0.05). CONCLUSIONS: Both techniques induced similar apical transportation in the original path of the simulated root canals. Medknow Publications & Media Pvt Ltd 2015 /pmc/articles/PMC4693313/ /pubmed/26752834 http://dx.doi.org/10.4103/0972-0707.168796 Text en Copyright: © 2015 Journal of Conservative Dentistry http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Article
Gonçalves, Aurenaila Nascimento
da Frota, Matheus Franco
Sponchiado Júnior, Emilio Carlos
de Carvalho, Fredson Marcio Acris
da Fonseca Roberti Garcia, Lucas
Franco Marques, André Augusto
Apical transportation of manual NiTi instruments and a hybrid technique in severely curved simulated canals
title Apical transportation of manual NiTi instruments and a hybrid technique in severely curved simulated canals
title_full Apical transportation of manual NiTi instruments and a hybrid technique in severely curved simulated canals
title_fullStr Apical transportation of manual NiTi instruments and a hybrid technique in severely curved simulated canals
title_full_unstemmed Apical transportation of manual NiTi instruments and a hybrid technique in severely curved simulated canals
title_short Apical transportation of manual NiTi instruments and a hybrid technique in severely curved simulated canals
title_sort apical transportation of manual niti instruments and a hybrid technique in severely curved simulated canals
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4693313/
https://www.ncbi.nlm.nih.gov/pubmed/26752834
http://dx.doi.org/10.4103/0972-0707.168796
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