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Microscopic Evaluation of Cleaning Efficiency of Three Different Nickel-Titanium Rotary Instruments

INTRODUCTION: This study compared the cleaning efficiency of Mtwo, Race and Medin Nickel-Titanium (NiTi) rotary instruments. MATERIALS AND METHODS: Sixty mandibular molar mesial roots were selected with angle curvatures between 25-35 degrees and divided into three groups; each containing 20 teeth. C...

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Autores principales: Bidar, Maryam, Moradi, Saeed, Forghani, Maryam, Bidad, Salma, Azghadi, Mahtab, Rezvani, Shahrzad, Khoynezhad, Shirin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Iranian Center for Endodontic Research 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3471575/
https://www.ncbi.nlm.nih.gov/pubmed/23130047
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author Bidar, Maryam
Moradi, Saeed
Forghani, Maryam
Bidad, Salma
Azghadi, Mahtab
Rezvani, Shahrzad
Khoynezhad, Shirin
author_facet Bidar, Maryam
Moradi, Saeed
Forghani, Maryam
Bidad, Salma
Azghadi, Mahtab
Rezvani, Shahrzad
Khoynezhad, Shirin
author_sort Bidar, Maryam
collection PubMed
description INTRODUCTION: This study compared the cleaning efficiency of Mtwo, Race and Medin Nickel-Titanium (NiTi) rotary instruments. MATERIALS AND METHODS: Sixty mandibular molar mesial roots were selected with angle curvatures between 25-35 degrees and divided into three groups; each containing 20 teeth. Canals were prepared with the rotary files and irrigated with 2.5% NaOCl solution after each instrument. Total of 5mL of normal saline was used as the final rinse; subsequently the canals were dried with paper points. The amount of debris and smear layer in three parts of the root canal walls was evaluated using SEM and the data were analyzed by using the Kruskal-Wallis test and the Mann-Whitney U test. RESULTS: The results for remnant debris in the coronal part of root canals were similar, whereas in the middle third, Mtwo instruments achieved significantly better results compared to Race and Medin instruments. In the apical third of the root canals more debris was created by Race instruments. CONCLUSION: Overall, Mtwo instruments had greater success in producing clean canals.
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spelling pubmed-34715752012-11-05 Microscopic Evaluation of Cleaning Efficiency of Three Different Nickel-Titanium Rotary Instruments Bidar, Maryam Moradi, Saeed Forghani, Maryam Bidad, Salma Azghadi, Mahtab Rezvani, Shahrzad Khoynezhad, Shirin Iran Endod J Original Article INTRODUCTION: This study compared the cleaning efficiency of Mtwo, Race and Medin Nickel-Titanium (NiTi) rotary instruments. MATERIALS AND METHODS: Sixty mandibular molar mesial roots were selected with angle curvatures between 25-35 degrees and divided into three groups; each containing 20 teeth. Canals were prepared with the rotary files and irrigated with 2.5% NaOCl solution after each instrument. Total of 5mL of normal saline was used as the final rinse; subsequently the canals were dried with paper points. The amount of debris and smear layer in three parts of the root canal walls was evaluated using SEM and the data were analyzed by using the Kruskal-Wallis test and the Mann-Whitney U test. RESULTS: The results for remnant debris in the coronal part of root canals were similar, whereas in the middle third, Mtwo instruments achieved significantly better results compared to Race and Medin instruments. In the apical third of the root canals more debris was created by Race instruments. CONCLUSION: Overall, Mtwo instruments had greater success in producing clean canals. Iranian Center for Endodontic Research 2010 2010-11-15 /pmc/articles/PMC3471575/ /pubmed/23130047 Text en Copyright © Iranian Endodontic Journal, 2010. http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Bidar, Maryam
Moradi, Saeed
Forghani, Maryam
Bidad, Salma
Azghadi, Mahtab
Rezvani, Shahrzad
Khoynezhad, Shirin
Microscopic Evaluation of Cleaning Efficiency of Three Different Nickel-Titanium Rotary Instruments
title Microscopic Evaluation of Cleaning Efficiency of Three Different Nickel-Titanium Rotary Instruments
title_full Microscopic Evaluation of Cleaning Efficiency of Three Different Nickel-Titanium Rotary Instruments
title_fullStr Microscopic Evaluation of Cleaning Efficiency of Three Different Nickel-Titanium Rotary Instruments
title_full_unstemmed Microscopic Evaluation of Cleaning Efficiency of Three Different Nickel-Titanium Rotary Instruments
title_short Microscopic Evaluation of Cleaning Efficiency of Three Different Nickel-Titanium Rotary Instruments
title_sort microscopic evaluation of cleaning efficiency of three different nickel-titanium rotary instruments
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3471575/
https://www.ncbi.nlm.nih.gov/pubmed/23130047
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