Comparison of Apical Transportation, Centering Ability and Cyclic Fatigue Resistance of Four Rotary File Systems
نویسندگان
چکیده
منابع مشابه
comparison of cyclic fatigue resistance of five nickel titanium rotary file systems with different manufacturing techniques
objectives: the purpose of this study was to evaluate the resistance to fatigue failure of five different nickel-titanium rotary files in three different curved trajectories. materials and methods: a total of 150 neoniti a1, race 25.06, mtwo 25.06, twisted file 25.06 and protaper next x2 files with the tip size of 25 were tested (n=30 for each group). three groove types simulating curved canals...
متن کاملComparison of the centering ability of the ProTaper Universal, ProFile and Twisted File Rotary Systems
Aim: To determine the centering ability of Twisted FileTM rotary system compared with ProTaper UniversalTM and ProFileTM rotary systems by evaluating preand postoperative cross-sectional images of the apical root canals third. Methods: Thirty mesiobuccal canals of human mandibular first molars were divided into three groups with 10 root canals each according to the instrument used: group 1, Pro...
متن کاملComparison of cyclic fatigue and torsional resistance in reciprocating single-file systems and continuous rotary instrumentation systems.
As compared with continuous rotary systems, reciprocating motion is believed to increase the fatigue resistance of NiTi instruments. We compared the cyclic fatigue and torsional resistance of reciprocating single-file systems and continuous rotary instrumentation systems in simulated root canals. Eighty instruments from the ProTaper Universal, WaveOne, MTwo, and Reciproc systems (n = 20) were s...
متن کاملComputed tomography evaluation of rotary systems on the root canal transportation and centering ability.
The endodontic preparation of curved and narrow root canals is challenging, with a tendency for the prepared canal to deviate away from its natural axis. The aim of this study was to evaluate, by cone-beam computed tomography, the transportation and centering ability of curved mesiobuccal canals in maxillary molars after biomechanical preparation with different nickel-titanium (NiTi) rotary sys...
متن کاملcomparison of apical extrusion of debris by using single-file, full-sequence rotary and reciprocating systems
objectives: during root canal preparation, apical extrusion of debris can cause inflammation, flare-ups, and delayed healing. therefore, instrumentation techniques that cause the least extrusion of debris are desirable. this study aimed to compare apical extrusion of debris by five single-file, full-sequence rotary and reciprocating systems. materials and methods: one hundred twenty human mandi...
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ژورنال
عنوان ژورنال: Dental Journal of Advance Studies
سال: 2015
ISSN: 2321-1482,2349-9869
DOI: 10.1055/s-0038-1672008