Cyclic Fatigue Life Assessment of a Newer Heat-treated Reciprocating NiTi File in a 90-degree Canal Curvature

Cyclic fatigue of NiTi rotary instruments in a simulated apical abrupt curvature.

AIM To evaluate the cyclic fatigue resistance of five NiTi rotary systems in an abrupt apical curvature. METHODOLOGY Cyclic fatigue testing was performed in stainless-steel artificial canals with a 2-mm radius of curvature and an angle of curvature of 90 degrees constructed to the dimensions of the instruments tested. The middle of the simulated curvature was 2.5 mm from the tip of the instru...

In vitro Evaluation of Cyclic Fatigue Resistance of Reciprocating and Rotary Single-file System

Aim: In vitro study evaluation of the cyclic fatigue resistance of reciprocating and rotary single-file system [Wave One Gold (WOG), Reciproc, Hyflex electrical discharge machining (EDM) file systems] utilizing cyclic fatigue testing device. Materials and methods: Three nickel–titanium rotary systems (Hyflex EDM size #25, 0.06 taper and Reciproc and WOG size #25, 0.06 taper) were used in this s...

a novel approach in assessment of root canal curvature

materials and methods: one hundred and thirty five mesial root canals of mandibular first and second molar teeth were selected. access cavities were prepared. after inserting a k-file size #10 into each canal, radiographs were taken. canal curvature was determined by measuring the schneider angle, canal access angle, as well as the canal radius, length, height and curvature starting distance on...

a study on corrosion reasons of heat exchanger in ammonia unit

چکیده ندارد.

Thermo-Mechanical Fatigue Life Assessment of a Diesel Engine Piston