Volume 1, Issue 2 (12-2012)                   3dj 2012, 1(2): 13-17 | Back to browse issues page

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Sadeghi S, Farhodi E. Shaping Ability of NiTi Rotary versus Stainless-Steel Hand Instruments in Curved Root Canals of Extracted Teeth . 3dj 2012; 1 (2) :13-17
URL: http://3dj.gums.ac.ir/article-1-31-en.html
1- Department of Endodontics, Guilan University of Medical Sciences Dental School, Rasht, Iran
2- private practice
Abstract:   (3790 Views)
Introduction: The purpose of this in-vitro study was to compare shaping ability of NiTi rotary Mtwo and FlexMaster with stainless steel hand K-Flexofile in curved root canals of extracted teeth. Materials and Methods: Mesiobuccal canals of 45 mandibular molar teeth were balanced into three groups of 15 each, with respect to the Schneider angle, canal access angle, height, dis-tance and radius of canal Curvature. Canals were prepared with Mtwo, FlexMaster and stainless steel hand K-Flexofile according to the manufac-turers` instruction. Comparing pre- and post-instrumentation radiographs, straightening of the canal curvatures was determined using AutoCAD program. Data was analyzed using one way ANOVA and Tukey HSD test. Results: After instrumentation, the K-Flexofile system was significantly different from Mtwo and Flex Master systems for the mean difference of Schneider angle (p=0.0001, p=0.0001), canal access angle (p=0.006, p=0.003), radius (p=0.045, p=0.015) and distance of curvature (p=0.001, p=0.001). Conclusion: Mtwo and FlexMaster files main-tained the original canal curvatures better than the K-Flexofile
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Type of Study: Original article | Subject: Radiology
Received: 2013/11/5 | Accepted: 2013/11/17 | Published: 2013/11/17

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