Cleaning and shaping curved root canals: Mtwo vs ProTaper instruments, a lab comparison

Kuzekanani, Maryam, Walsh, Laurence J. and Yousefi, Mohammad A. (2009) Cleaning and shaping curved root canals: Mtwo vs ProTaper instruments, a lab comparison. Indian Journal of Dental Research, 20 3: 268-270. doi:10.4103/0970-9290.57355

Author Kuzekanani, Maryam
Walsh, Laurence J.
Yousefi, Mohammad A.
Title Cleaning and shaping curved root canals: Mtwo vs ProTaper instruments, a lab comparison
Journal name Indian Journal of Dental Research   Check publisher's open access policy
ISSN 1998-3603
Publication date 2009-07
Year available 2009
Sub-type Article (original research)
DOI 10.4103/0970-9290.57355
Open Access Status DOI
Volume 20
Issue 3
Start page 268
End page 270
Total pages 3
Editor Sivapathasundharam, B.
Place of publication India
Publisher Medknow Publications And Media Pvt.
Collection year 2010
Subject C1
920113 Oro-Dental Disorders
110503 Endodontics
Abstract OBJECTIVES: 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. MATERIALS AND METHODS: 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. RESULTS: 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. CONCLUSION: Overall, the results of this study suggest that Mtwo instruments are preferable for situations where canals are curved, particularly for maxillary molars.
Keyword Root Canals
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Dentistry Publications
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Created: Thu, 15 Apr 2010, 11:41:11 EST by Margot Dallinger on behalf of School of Dentistry