Cleaning and shaping curved root canals: Mtwo<sup>&#174;</sup> vs ProTaper<sup>&#174;</sup> instruments, a lab comparison

<b>Objectives: </b> The purpose of this study was to compare root canal preparation in curved canals in molar teeth with the rotary NiTi Mtwo and ProTaper systems in terms of canal shape and smear layer. <b> Materials and Methods: </b> Mesiobuccal canals of 60 molar teeth wi...

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Main Authors: Kuzekanani Maryam, Walsh Laurence, Yousefi Mohammad
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2009-01-01
Series:Indian Journal of Dental Research
Subjects:
Online Access:http://www.ijdr.in/article.asp?issn=0970-9290;year=2009;volume=20;issue=3;spage=268;epage=270;aulast=Kuzekanani
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spelling doaj-6e0a7f3b8f85456596c3f397ab067d692020-11-25T00:21:02ZengWolters Kluwer Medknow PublicationsIndian Journal of Dental Research0970-92901998-36032009-01-01203268270Cleaning and shaping curved root canals: Mtwo<sup>&#174;</sup> vs ProTaper<sup>&#174;</sup> instruments, a lab comparisonKuzekanani MaryamWalsh LaurenceYousefi Mohammad<b>Objectives: </b> The purpose of this study was to compare root canal preparation in curved canals in molar teeth with the rotary NiTi Mtwo and ProTaper systems in terms of canal shape and smear layer. <b> Materials and Methods: </b> Mesiobuccal canals of 60 molar teeth with angles of curvature between 25 and 35 degrees were prepared with a torque controlled low speed engine; 30 canals for each system. Each individual instrument was used to prepare four root canals and the time required for preparation was recorded. Standardized radiographs were taken before and following instrumentation and used to determine changes in canal curvature. <b> Results: </b> There was no significant difference in preparation time between the two systems. No instruments separated during use. The Mtwo system gave a statistically smaller change in canal curvature and thus was better for maintaining the original shape of the root canal, with less transportation (P less than 0.05). The greatest difference was seen for maxillary molar teeth. When prepared root canals were examined by SEM there was no difference between the two systems at the coronal, middle or apical thirds. <b>Conclusion: </b> Overall, the results of this study suggest that Mtwo instruments are preferable for situations where canals are curved, particularly for maxillary molars.http://www.ijdr.in/article.asp?issn=0970-9290;year=2009;volume=20;issue=3;spage=268;epage=270;aulast=KuzekananiNickel-titanium filesMtwoProTaperrotary endodonticssmear layer
collection DOAJ
language English
format Article
sources DOAJ
author Kuzekanani Maryam
Walsh Laurence
Yousefi Mohammad
spellingShingle Kuzekanani Maryam
Walsh Laurence
Yousefi Mohammad
Cleaning and shaping curved root canals: Mtwo<sup>&#174;</sup> vs ProTaper<sup>&#174;</sup> instruments, a lab comparison
Indian Journal of Dental Research
Nickel-titanium files
Mtwo
ProTaper
rotary endodontics
smear layer
author_facet Kuzekanani Maryam
Walsh Laurence
Yousefi Mohammad
author_sort Kuzekanani Maryam
title Cleaning and shaping curved root canals: Mtwo<sup>&#174;</sup> vs ProTaper<sup>&#174;</sup> instruments, a lab comparison
title_short Cleaning and shaping curved root canals: Mtwo<sup>&#174;</sup> vs ProTaper<sup>&#174;</sup> instruments, a lab comparison
title_full Cleaning and shaping curved root canals: Mtwo<sup>&#174;</sup> vs ProTaper<sup>&#174;</sup> instruments, a lab comparison
title_fullStr Cleaning and shaping curved root canals: Mtwo<sup>&#174;</sup> vs ProTaper<sup>&#174;</sup> instruments, a lab comparison
title_full_unstemmed Cleaning and shaping curved root canals: Mtwo<sup>&#174;</sup> vs ProTaper<sup>&#174;</sup> instruments, a lab comparison
title_sort cleaning and shaping curved root canals: mtwo<sup>&#174;</sup> vs protaper<sup>&#174;</sup> instruments, a lab comparison
publisher Wolters Kluwer Medknow Publications
series Indian Journal of Dental Research
issn 0970-9290
1998-3603
publishDate 2009-01-01
description <b>Objectives: </b> The purpose of this study was to compare root canal preparation in curved canals in molar teeth with the rotary NiTi Mtwo and ProTaper systems in terms of canal shape and smear layer. <b> Materials and Methods: </b> Mesiobuccal canals of 60 molar teeth with angles of curvature between 25 and 35 degrees were prepared with a torque controlled low speed engine; 30 canals for each system. Each individual instrument was used to prepare four root canals and the time required for preparation was recorded. Standardized radiographs were taken before and following instrumentation and used to determine changes in canal curvature. <b> Results: </b> There was no significant difference in preparation time between the two systems. No instruments separated during use. The Mtwo system gave a statistically smaller change in canal curvature and thus was better for maintaining the original shape of the root canal, with less transportation (P less than 0.05). The greatest difference was seen for maxillary molar teeth. When prepared root canals were examined by SEM there was no difference between the two systems at the coronal, middle or apical thirds. <b>Conclusion: </b> Overall, the results of this study suggest that Mtwo instruments are preferable for situations where canals are curved, particularly for maxillary molars.
topic Nickel-titanium files
Mtwo
ProTaper
rotary endodontics
smear layer
url http://www.ijdr.in/article.asp?issn=0970-9290;year=2009;volume=20;issue=3;spage=268;epage=270;aulast=Kuzekanani
work_keys_str_mv AT kuzekananimaryam cleaningandshapingcurvedrootcanalsmtwosup174supvsprotapersup174supinstrumentsalabcomparison
AT walshlaurence cleaningandshapingcurvedrootcanalsmtwosup174supvsprotapersup174supinstrumentsalabcomparison
AT yousefimohammad cleaningandshapingcurvedrootcanalsmtwosup174supvsprotapersup174supinstrumentsalabcomparison
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