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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Main Authors: Maryam Bidar, Saeed Moradi, Maryam Forghani, Salma Bidad, Mahtab Azghadi, Shahrzad Rezvani, Shirin Khoynezhad
Format: Article
Language:English
Published: Iranian Association of Endodontists; Iranian Center for Endodontic Research 2010-10-01
Series:Iranian Endodontic Journal
Subjects:
Online Access:http://journals.sbmu.ac.ir/index.php/iej/article/view/1730/1716
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author Maryam Bidar
Saeed Moradi
Maryam Forghani
Salma Bidad
Mahtab Azghadi
Shahrzad Rezvani
Shirin Khoynezhad
author_facet Maryam Bidar
Saeed Moradi
Maryam Forghani
Salma Bidad
Mahtab Azghadi
Shahrzad Rezvani
Shirin Khoynezhad
author_sort Maryam Bidar
collection DOAJ
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 doaj.art-0b7adfb5d0dd4bbf9cfda929fbc02e2d2022-12-22T00:27:43ZengIranian Association of Endodontists; Iranian Center for Endodontic ResearchIranian Endodontic Journal1735-74972008-27462010-10-0154174180Microscopic evaluation of cleaning efficiency of three different Nickel-Titanium rotary instrumentsMaryam BidarSaeed MoradiMaryam ForghaniSalma BidadMahtab AzghadiShahrzad RezvaniShirin KhoynezhadIntroduction: 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.http://journals.sbmu.ac.ir/index.php/iej/article/view/1730/1716NiTi rotaryRoot canal preparationScanning electron microscopySmear layer
spellingShingle Maryam Bidar
Saeed Moradi
Maryam Forghani
Salma Bidad
Mahtab Azghadi
Shahrzad Rezvani
Shirin Khoynezhad
Microscopic evaluation of cleaning efficiency of three different Nickel-Titanium rotary instruments
Iranian Endodontic Journal
NiTi rotary
Root canal preparation
Scanning electron microscopy
Smear layer
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 NiTi rotary
Root canal preparation
Scanning electron microscopy
Smear layer
url http://journals.sbmu.ac.ir/index.php/iej/article/view/1730/1716
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