Smear layer removal comparing conventional irrigation, passive ultrasonic irrigation, EndoActivator System, and a new sonic device (Perfect Clean System) by scanning electron microscopy: An ex vivo study.

<h4>Aim</h4>This study evaluated the smear layer removal provided by conventional, sonic, and ultrasonic irrigation techniques.<h4>Methodology</h4>Forty extracted human mandibular first premolars were selected and instrumented using the ProTaper Next System files and 2.5% sod...

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Main Authors: Bruna Fernanda Alionço Gonçalves, Divya Reddy, Ricardo Machado, Paulo César Soares Júunior, Sérgio Aparecido Ignácio, Douglas Augusto Fernandes Couto, Karine Santos Frasquetti, Vânia Portela Ditzel Westphalen, Everdan Carneiro, Ulisses Xavier da Silva Neto
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2024-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0314940
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author Bruna Fernanda Alionço Gonçalves
Divya Reddy
Ricardo Machado
Paulo César Soares Júunior
Sérgio Aparecido Ignácio
Douglas Augusto Fernandes Couto
Karine Santos Frasquetti
Vânia Portela Ditzel Westphalen
Everdan Carneiro
Ulisses Xavier da Silva Neto
author_facet Bruna Fernanda Alionço Gonçalves
Divya Reddy
Ricardo Machado
Paulo César Soares Júunior
Sérgio Aparecido Ignácio
Douglas Augusto Fernandes Couto
Karine Santos Frasquetti
Vânia Portela Ditzel Westphalen
Everdan Carneiro
Ulisses Xavier da Silva Neto
author_sort Bruna Fernanda Alionço Gonçalves
collection DOAJ
description <h4>Aim</h4>This study evaluated the smear layer removal provided by conventional, sonic, and ultrasonic irrigation techniques.<h4>Methodology</h4>Forty extracted human mandibular first premolars were selected and instrumented using the ProTaper Next System files and 2.5% sodium hypochlorite. Afterward, they were divided into 4 groups (n. 10) according to the irrigation technique used to perform the final irrigation with a chelating solution (17% EDTA): conventional irrigation (CI), passive ultrasonic irrigation (PUI), EndoActivator System (EAS), and Perfect Clean System (PCS). The smear layer removal was determined through a score after evaluating scanning electron microscope images (1.000x) obtained at 1, 5, 8, and 12mm from the working length (WL). Statistical analyses were carried out by the Kruskal-Wallis and Dunn's tests with a significance level of 5% (P < 0.05).<h4>Results</h4>All irrigation techniques were unable to promote an effective smear layer removal at 1mm from the WL in comparison with the other locations (P < .05). At 5, 8, and 12mm from the WL, no statistically significant differences were observed among CI, PUI, EAS, and PCS (P > 0.05). At 12mm from the WL, statistically significant differences were only identified after comparing PCS and CI (P < .05).<h4>Conclusion</h4>The smear layer removal was only efficient at 5, 8, and 12 from the WL with no significant statistical differences among CI, PUI, EAS, and PCS (P > 0.05).
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spelling doaj-art-652a3d21e4ad4a7483f6e4b3074530192025-01-08T05:32:21ZengPublic Library of Science (PLoS)PLoS ONE1932-62032024-01-011912e031494010.1371/journal.pone.0314940Smear layer removal comparing conventional irrigation, passive ultrasonic irrigation, EndoActivator System, and a new sonic device (Perfect Clean System) by scanning electron microscopy: An ex vivo study.Bruna Fernanda Alionço GonçalvesDivya ReddyRicardo MachadoPaulo César Soares JúuniorSérgio Aparecido IgnácioDouglas Augusto Fernandes CoutoKarine Santos FrasquettiVânia Portela Ditzel WestphalenEverdan CarneiroUlisses Xavier da Silva Neto<h4>Aim</h4>This study evaluated the smear layer removal provided by conventional, sonic, and ultrasonic irrigation techniques.<h4>Methodology</h4>Forty extracted human mandibular first premolars were selected and instrumented using the ProTaper Next System files and 2.5% sodium hypochlorite. Afterward, they were divided into 4 groups (n. 10) according to the irrigation technique used to perform the final irrigation with a chelating solution (17% EDTA): conventional irrigation (CI), passive ultrasonic irrigation (PUI), EndoActivator System (EAS), and Perfect Clean System (PCS). The smear layer removal was determined through a score after evaluating scanning electron microscope images (1.000x) obtained at 1, 5, 8, and 12mm from the working length (WL). Statistical analyses were carried out by the Kruskal-Wallis and Dunn's tests with a significance level of 5% (P < 0.05).<h4>Results</h4>All irrigation techniques were unable to promote an effective smear layer removal at 1mm from the WL in comparison with the other locations (P < .05). At 5, 8, and 12mm from the WL, no statistically significant differences were observed among CI, PUI, EAS, and PCS (P > 0.05). At 12mm from the WL, statistically significant differences were only identified after comparing PCS and CI (P < .05).<h4>Conclusion</h4>The smear layer removal was only efficient at 5, 8, and 12 from the WL with no significant statistical differences among CI, PUI, EAS, and PCS (P > 0.05).https://doi.org/10.1371/journal.pone.0314940
spellingShingle Bruna Fernanda Alionço Gonçalves
Divya Reddy
Ricardo Machado
Paulo César Soares Júunior
Sérgio Aparecido Ignácio
Douglas Augusto Fernandes Couto
Karine Santos Frasquetti
Vânia Portela Ditzel Westphalen
Everdan Carneiro
Ulisses Xavier da Silva Neto
Smear layer removal comparing conventional irrigation, passive ultrasonic irrigation, EndoActivator System, and a new sonic device (Perfect Clean System) by scanning electron microscopy: An ex vivo study.
PLoS ONE
title Smear layer removal comparing conventional irrigation, passive ultrasonic irrigation, EndoActivator System, and a new sonic device (Perfect Clean System) by scanning electron microscopy: An ex vivo study.
title_full Smear layer removal comparing conventional irrigation, passive ultrasonic irrigation, EndoActivator System, and a new sonic device (Perfect Clean System) by scanning electron microscopy: An ex vivo study.
title_fullStr Smear layer removal comparing conventional irrigation, passive ultrasonic irrigation, EndoActivator System, and a new sonic device (Perfect Clean System) by scanning electron microscopy: An ex vivo study.
title_full_unstemmed Smear layer removal comparing conventional irrigation, passive ultrasonic irrigation, EndoActivator System, and a new sonic device (Perfect Clean System) by scanning electron microscopy: An ex vivo study.
title_short Smear layer removal comparing conventional irrigation, passive ultrasonic irrigation, EndoActivator System, and a new sonic device (Perfect Clean System) by scanning electron microscopy: An ex vivo study.
title_sort smear layer removal comparing conventional irrigation passive ultrasonic irrigation endoactivator system and a new sonic device perfect clean system by scanning electron microscopy an ex vivo study
url https://doi.org/10.1371/journal.pone.0314940
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