Cyclic Fatigue Resistance and Force Generated by OneShape Instruments during Curved Canal Preparation
نویسندگان
چکیده
منابع مشابه
Cyclic Fatigue Resistance and Force Generated by OneShape Instruments during Curved Canal Preparation
OBJECTIVES To evaluate the cyclic fatigue resistance and the force generated by OneShape files during preparation of simulated curved canals. METHODS Six OneShape files (the test) and six ProTaper F2 files (the control) were subject to the bending ability test. Another thirty files of each type were used to prepare artificial canals (n = 60), which were divided into 3 groups according to resp...
متن کاملCyclic fatigue resistance of OneShape and WaveOne instruments using different angles of curvature.
This study compared the cyclic fatigue resistance of OneShape (OS) instrument which used continuous rotation with WaveOne (WO) instrument which used reciprocating motion. OS size 25, 0.06 taper and WO primary size 25, 0.08 taper were used in simulated canals with 45°, 60°, and 90° angles of curvature until fracture. The number of cycles to fracture (NCF) was recorded to evaluate cyclic fatigue ...
متن کاملIn vitro assessment of torque and force generated by novel ProTaper Next Instruments during simulated canal preparation.
INTRODUCTION The purpose of this study was to assess torque and force for simulated canal preparation with a new root canal instrument, ProTaper Next. METHODS Six sets of ProTaper Next Instruments (X1-X5) were used to prepare 36 artificial canals. Files were divided into 6 groups. Different settings of rotations per minute (250, 300, and 350 rpm) and numbers of in-and-out movements to reach w...
متن کاملCyclic fatigue resistance of rotary NiTi instruments after simulated clinical use in curved root canals.
The aim of this study was to assess cyclic fatigue resistance in rotary nickel-titanium instruments after simulated clinical use in curved root canals (40-degree, 5-mm radius curve). Thirty-six RaCe rotary NiTi files, size #5, taper 0.04, were divided into 3 groups: Groups A, B and C with one, three and five cycles of use, respectively. Time to failure was recorded with a stopwatch in seconds a...
متن کاملEffect of movement kinematics on the cyclic fatigue resistance of nickel-titanium instruments.
AIM To compare the cyclic fatigue resistance of new generation OneShape and WaveOne instruments when used with different kinematics. METHODOLOGY An artificial canal, made of stainless steel with an inner diameter of 1.5 mm, a 60° angle of curvature and a curvature radius of 3 mm, was used for cyclic fatigue test of new generation OneShape and WaveOne instruments. Groups were as follows (n = 2...
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ژورنال
عنوان ژورنال: PLOS ONE
سال: 2016
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0160815