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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/16665

Title: Evaluation of cyclic flexural fatigue of M-wire nickel-titanium rotary instruments.
Authors: Al Hadlaq, S.
Aljarbou, F.
AlThumairy, R.
Keywords: Dental high-speed equipments/standards; equipment design; equipment failure analysis; materials testing; metallurgy; nickel
Issue Date: 2010
Publisher: Elsevier B.V.
Citation: Journal of Endodontics: 36 (2); 305-307
Abstract: INTRODUCTION: This study was conducted to investigate cyclic flexural fatigue resistance of GT series X rotary files made from the newly developed M-wire nickel-titanium alloy compared with GT and Profile nickel-titanium files made from a conventional nickel-titanium alloy. METHODS: Fifteen files, size 30/0.04, of each type were used to evaluate the cyclic flexural fatigue resistance. A simple device was specifically constructed to measure the time each file type required to fail under cyclic flexural fatigue testing. RESULTS: The results of this experiment indicated that the GT series X files had superior cyclic flexural fatigue resistance than the other 2 file types made from a conventional nickel-titanium alloy (P = .004). On the other hand, the difference between the Profile and the GT files was not statistically significant. CONCLUSIONS: The findings of this study suggest that size 30/0.04 nickel-titanium rotary files made from the newly developed M-wire alloy have better cyclic flexural fatigue resistance than files of similar design and size made from the conventional nickel-titanium alloy.
URI: http://hdl.handle.net/123456789/16665
ISSN: 0099-2399
Appears in Collections:College of Dentistry

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