نتایج جستجو برای: rotary systems

تعداد نتایج: 1191667  

Journal: :journal of dentistry, tehran university of medical sciences 0
k. nazari moghaddam p. owlia a. baghalian

statement of problem: microorganisms are essential for the development of periradicular diseases and are one of the major causative factors associated with endodontic treatment failures. different instruments and preparation techniques have been developed in endodontics to eliminate or reduce intracanal bacteria. purpose: the aim of this study was to compare the amount of remaining e. faecalis ...

Journal: :E3S Web of Conferences 2019

بشری, منا, تاپاک, لیلی, سالمی, فاطمه, شکری, عباس, کرکه‌آبادی, حامد,

Background and Objective: The preparation of the root canal (i.e., cleaning and shaping) is the main step in the endodontic treatment. The nickel-titanium rotary files result in fewer errors during the preparation of curved canals. This study aimed to compare the transportation of Neolix and Reciproc rotary systems in curved canals using cone beam computed tomography (CBCT). Materials and Meth...

Motahari, Poria, Nekoofar, Mohammad hossein, Sharifian, Mohammad reza, Tavakoli, Azadeh,

A comparison of transportation and time of canal preparation with stainless steel hand instruments and Ni-Ti rotary systems (In – Vitro) Dr. MR. Sharifian* - Dr. MH. Nekoofar* - Dr. P. Motahari** - Dr. A. Tavakoli*** *-Assistant Professor of Endodontics Dept. – Faculty of Dentistry – Tehran University of Medical Sciences. **- Assistant Professor of Oral and Maxillofacial Pathology Dept. – Facul...

Moradi, Saeed, Shakeri, Leila, Talati, Ali, Zarrabi, Mohammad hasan,

Comparative study on canal preparation by three rotary sys-tems using CT scan (An in vitro study) Dr. M.H. Zarrabi* - Dr. A. Talati** - Dr. S. Moradi** - Dr. L. Shakeri*** * - Associate Professor and Chief of Endodontics Dept. - Faculty of Dentistry – Mashhad University of Medical Sciences. **- Assistant Professor of Endodontics Dept. - Faculty of Dentistry – Mashhad University of Medical Scien...

Abbas Mohammadi EshaghAli Saberi Sediqe Ebrahimipour Sepideh Baniasadi

Background and Aim:Root canal preparation with rotary instruments may cause dentinal cracks leading to tooth fracture. The aim of this study was to compare three different rotary systems ProTaper, RaCe and Niti Tee on formation of dentinal cracks following root canal preparation. Materials and Methods: In this experimental study, 50 extracted mandibular first molars were selected. Teeth having ...

Javidi, Maryam, Vatanpour, Mehdi, Zarei, Mina,

Comparison of canal transportation after preparation by 3 different rotary systems Dr. Javidi, M.* - Dr. Zarei, M.* - Dr. Vatanpour, M.** *Assistant Professor of Endodontics Dept., Faculty of Dentistry, Mashhad University of Medical Sciences. **Assistant Professor of Endodontics Dept., Faculty of Dentistry, Tehran Azad University. Abstract Background & Aim: Cleaning and shaping has been recogni...

Khedmat, Sedighe, Vahdatifar, Majid,

Comparison of the maintenance of root canal anatomy in severely curved resin blocks using RaCe and Flexmaster rotary systems Dr. S. Khedmat* - Dr. M. Vahdatifar** *- Associate Professor of Endodontics Dept. - Faculty of Dentistry – Tehran University of Medical Sciences. **- Endodontist. Background and Aim: Various rotary systems are available on the market, therefore selection of a proper instr...

Journal: :middle east journal of rehabilitation and health studies 0
kiumars nazari moghaddam department of endodontics, dental school, shahed university, tehran, ir iran seyed lotfoallah derakhshan endodontics private practice, tehran, ir iran mohammad adeli department of endodontics, dental school, shahed university, tehran, ir iran; department of endodontics, dental school, shahed university, tehran, ir iran ehsan hamzelouei moghadam department of endodontics, dental school, shahed university, tehran, ir iran mohadeseh hashemzehi department of endodontics, dental school, shahed university, tehran, ir iran mohammad sadegh nazari tehran dental branch, islamic azad university, tehran, ir iran

conclusions regarding the study limitations, dentinal cracks were observed in all files and distances from the apex. although there was more crack incidence in protaper files, no significant differences were noted regarding the studied systems and sections from the apex. materials and methods in an experimental in vitro trial, 80 maxillary and mandibular first molars were selected and their cro...

Journal: :British Dental Journal 2020

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