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Efficacy of a Novel Rotary System in Reduction of Intracanal Bacteria: An in Vitro Study

INTRODUCTION: This in vitro study aimed to assess the effectiveness of a single-file rotary system (OneShape) in reduction of intracanal bacteria. METHODS AND MATERIALS: Eighty one single-rooted mandibular first premolars with single canals were used. Six samples were selected as aseptic control gro...

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Autores principales: Vossoghi, Maryam, Vossoghi, Mitra, Shahriari, Shahriar, Faramarzi, Farhad, Yousefi Mashouf, Rasoul, Farhadian, Maryam
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Iranian Center for Endodontic Research 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4947848/
https://www.ncbi.nlm.nih.gov/pubmed/27471535
http://dx.doi.org/10.7508/iej.2016.03.014
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author Vossoghi, Maryam
Vossoghi, Mitra
Shahriari, Shahriar
Faramarzi, Farhad
Yousefi Mashouf, Rasoul
Farhadian, Maryam
author_facet Vossoghi, Maryam
Vossoghi, Mitra
Shahriari, Shahriar
Faramarzi, Farhad
Yousefi Mashouf, Rasoul
Farhadian, Maryam
author_sort Vossoghi, Maryam
collection PubMed
description INTRODUCTION: This in vitro study aimed to assess the effectiveness of a single-file rotary system (OneShape) in reduction of intracanal bacteria. METHODS AND MATERIALS: Eighty one single-rooted mandibular first premolars with single canals were used. Six samples were selected as aseptic control group. Seventy five remaining specimens were infected by Enterococcus faecalis and incubated for 72 h at 37(°)C. Then they were randomly divided into three groups (n=25). In each group, cleaning and shaping procedures were done using either two conventional rotary systems (ProTaper and iRace), or the single-file system (OneShape). Microbial samples from the intracanal environment were taken by paper points in two steps, before and after instrumentation. Then, they were diluted and plated in blood agar. In order to compare bacterial reduction and turbidity, the Kruskal-Wallis test was used followed by the Chi-Square and Mann-Whitney tests for pairwise comparison. The level of significance was set at 0.05. RESULTS: The control group didn’t show any bacterial growth. The pre- and post-instrumentation samples were significantly different between three groups (P=0.02). Hence, there was no significant differences between turbidity of samples (P>0.05). CONCLUSION: OneShape system is efficient in bacterial reduction. In this regard ProTaper is the most effective system in intracanal bacterial reduction followed by iRaCe and OneShape, respectively.
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spelling pubmed-49478482016-07-28 Efficacy of a Novel Rotary System in Reduction of Intracanal Bacteria: An in Vitro Study Vossoghi, Maryam Vossoghi, Mitra Shahriari, Shahriar Faramarzi, Farhad Yousefi Mashouf, Rasoul Farhadian, Maryam Iran Endod J Original Article INTRODUCTION: This in vitro study aimed to assess the effectiveness of a single-file rotary system (OneShape) in reduction of intracanal bacteria. METHODS AND MATERIALS: Eighty one single-rooted mandibular first premolars with single canals were used. Six samples were selected as aseptic control group. Seventy five remaining specimens were infected by Enterococcus faecalis and incubated for 72 h at 37(°)C. Then they were randomly divided into three groups (n=25). In each group, cleaning and shaping procedures were done using either two conventional rotary systems (ProTaper and iRace), or the single-file system (OneShape). Microbial samples from the intracanal environment were taken by paper points in two steps, before and after instrumentation. Then, they were diluted and plated in blood agar. In order to compare bacterial reduction and turbidity, the Kruskal-Wallis test was used followed by the Chi-Square and Mann-Whitney tests for pairwise comparison. The level of significance was set at 0.05. RESULTS: The control group didn’t show any bacterial growth. The pre- and post-instrumentation samples were significantly different between three groups (P=0.02). Hence, there was no significant differences between turbidity of samples (P>0.05). CONCLUSION: OneShape system is efficient in bacterial reduction. In this regard ProTaper is the most effective system in intracanal bacterial reduction followed by iRaCe and OneShape, respectively. Iranian Center for Endodontic Research 2016 2016-05-01 /pmc/articles/PMC4947848/ /pubmed/27471535 http://dx.doi.org/10.7508/iej.2016.03.014 Text en This is an Open Access article distributed under the terms of the Creative Commons Attribution License, (http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Vossoghi, Maryam
Vossoghi, Mitra
Shahriari, Shahriar
Faramarzi, Farhad
Yousefi Mashouf, Rasoul
Farhadian, Maryam
Efficacy of a Novel Rotary System in Reduction of Intracanal Bacteria: An in Vitro Study
title Efficacy of a Novel Rotary System in Reduction of Intracanal Bacteria: An in Vitro Study
title_full Efficacy of a Novel Rotary System in Reduction of Intracanal Bacteria: An in Vitro Study
title_fullStr Efficacy of a Novel Rotary System in Reduction of Intracanal Bacteria: An in Vitro Study
title_full_unstemmed Efficacy of a Novel Rotary System in Reduction of Intracanal Bacteria: An in Vitro Study
title_short Efficacy of a Novel Rotary System in Reduction of Intracanal Bacteria: An in Vitro Study
title_sort efficacy of a novel rotary system in reduction of intracanal bacteria: an in vitro study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4947848/
https://www.ncbi.nlm.nih.gov/pubmed/27471535
http://dx.doi.org/10.7508/iej.2016.03.014
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