The effects of autoclave sterilization on the cyclic fatigue resistance of ProTaper Universal, ProTaper Next, and ProTaper Gold nickel-titanium instruments
نویسندگان
چکیده
منابع مشابه
The effects of autoclave sterilization on the cyclic fatigue resistance of ProTaper Universal, ProTaper Next, and ProTaper Gold nickel-titanium instruments
Objectives It was aimed to compare the cyclic fatigue resistances of ProTaper Universal (PTU), ProTaper Next (PTN), and ProTaper Gold (PTG) and the effects of sterilization by autoclave on the cyclic fatigue life of nickel-titanium (NiTi) instruments. Materials and Methods Eighty PTU, 80 PTN, and 80 PTG were included to the present study. Files were tested in a simulated canal. Each brand of ...
متن کاملDifferences in cyclic fatigue resistance between ProTaper Next and ProTaper Universal instruments at different levels.
INTRODUCTION New designs and alloys have been developed to increase cyclic fatigue (CF) resistance of rotary files. The aim of this study was to compare CF resistance of ProTaper Universal (PTU; Dentsply Tulsa Dental, Tulsa, OK) and ProTaper Next (PTN, Dentsply Tulsa Dental) instruments at different points of curvature. METHODS A total of 420 files (240 PTU, S1, F1, F2, and F3 and 180 PTN, X1...
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The resistance of ProTaper (Dentsply Maillefer, Ballaigues, Switzerland) nickel-titanium rotary instruments to cyclic fatigue was examined after their initial use in straight or curved canals in vivo. These instruments were rotated freely inside a steel phantom until separation. The number of rotations before failure and the lengths of the separated fragments were compared with data derived fro...
متن کاملEffects of ProTaper Universal, ProTaper Next, and HyFlex instruments on crack formation in dentin.
INTRODUCTION The aim of the present study was to investigate the incidence of cracks in root dentin after root canal preparation with ProTaper Next (Dentsply Maillefer, Ballaigues, Switzerland), HyFlex (Coltene-Whaledent, Allstetten, Switzerland), and ProTaper Universal (Dentsply Maillefer) rotary instruments. METHODS One-hundred mandibular premolars were selected. Twenty-five teeth were left...
متن کاملThe Effect of Autoclave Sterilization on the Fracture Resistance of ProTaper Rotary Files
Background and aim: The purpose of this study was to evaluate the effect of autoclave sterilization on the fracture rate of ProTaper instruments (ex vivo). Materials and methods: One hundred shaping and finishing ProTaper instruments were used in a crown – down technique for cleaning and shaping the mesial canals of extracted mandibular molars using 5.25% NaOCl for irrigation. In the e...
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ژورنال
عنوان ژورنال: Restorative Dentistry & Endodontics
سال: 2017
ISSN: 2234-7658,2234-7666
DOI: 10.5395/rde.2017.42.4.301