نتایج جستجو برای: rotary files

تعداد نتایج: 38529  

2014
Anupama Swarnkar

AIMS The purpose of this study was to compare the canal centering abilities of rotary nickel-titanium (NiTi) files (ProFile 0.04 and 0.06 and Lightspeed LSX) and NiTi hand K-files in 10° to 25° curved canals. This was compared with the canal centering ability of stainless steel hand K-files using Kuttler's endodontic cube. SETTINGS AND DESIGN The teeth with a 10° to 25° of clinical mesiodista...

Journal: :Annali dell’Istituto Superiore di Sanità 2009

2017
Masoud Khabiri Maziar Ebrahimi Mohammad Reza Saei

Statement of the Problem File fracture can interfere with cleaning and shaping of the canal and compromise periradicular healing. Autoclave sterilization may prone the files to fracture. Purpose The purpose of the present study was to determine the effect of autoclave sterilization on the cyclic fatigue resistance of Hero642 rotary instrument in two curvatures of 45 and 60 degrees. Material...

Journal: :Australian dental journal 2004
P Parashos P Linsuwanont H H Messer

BACKGROUND The cleaning of endodontic and all dental instruments prior to sterilization is a prerequisite for their processing for re-use. This study aimed to develop a clinically practical cleaning protocol for rotary nickel-titanium (NiTi) endodontic files prior to sterilization. METHODS Cleaning experiments were conducted on six different types of files that had been used on human teeth. T...

Journal: :Acta odontologica latinoamericana : AOL 2013
Javier L Niño-Barrera Mara C Aguilera-Cañón Carlos J Cortes-Rodríguez

Nickel-Titanium rotary files are a technological development that enables dentists to prepare irregularly shaped root canals without altering them. Unfortunately, these files may fracture without any prior visible warning signs. The aim of this study was to perform a theoretical evaluation of the mechanical behaviour of Mtwo Nickel-Titanium rotary files for endodontics, in order to determine wh...

Journal: :International Journal of Dentistry 2012

ژورنال: دانشور پزشکی 2007
تیموری, دانش, هنردار, کیامرث,

Introduction: Successful treatment of root depends on complete elimination of debris and bacteria’s from root canal system and appropriate shaping of canal in obturation canal preparation is the most difficult and time consuming stage during root canal treatment. This stage especially in curved and narrow canals always causes some problems for students, general dentist and specialist. Following...

2017
Alberto Dagna Rashid El Abed Sameeha Hussain Ibrahim H Abu-Tahun Livia Visai Federico Bertoglio Floriana Bosco Riccardo Beltrami Claudio Poggio Hyeon-Cheol Kim

Objectives This study compared the amount of apically extruded bacteria during the glide-path preparation by using multi-file and single-file glide-path establishing nickel-titanium (NiTi) rotary systems. Materials and Methods Sixty mandibular first molar teeth were used to prepare the test apparatus. They were decoronated, blocked into glass vials, sterilized in ethylene oxide gas, infected ...

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