نتایج جستجو برای: reciproc file rotary system

تعداد نتایج: 2269593  

2013
Hyeon-Cheol Kim Sang-Won Kwak Gary Shun-Pan Cheung Dae-Hoon Ko Se-Min Chung WooCheol Lee

The use of reciprocating movement (RM) was claimed to increase the resistance of nickel-titanium (NiTi) file to fatigue in comparison to continuous rotation (CR). Recently two new brands of NiTi file have been marketed for use in a RM mode. The purpose of this study was to compare the cyclic fatigue resistance and torsional resistance of these two files; Reciproc and WaveOne. Cyclic fatigue tes...

2017
Pinky Kalra Arathi Rao Ethel Suman Ramya Shenoy Baranya-Shrikrishna Suprabha

BACKGROUND Endodontic instrumentation carries the risk of over extrusion of debris and bacteria. The technique used and the type of instrumentation influences this risk. AIM The purpose of this study was to evaluate and compare the K-file, ProTaper hand and ProTaper rotary instrumentation systems for the amount of apically extruded debris, irrigant solution and intracanal bacteria. DESIGN E...

Journal: :Acta stomatologica Croatica 2016
Daniela Siqueira Lopes Mariana Albuquerque Veiga Pessoa Carlos Menezes Aguiar

OBJECTIVE Apical deviations are important factors in endodontic therapy, since they can cause the treatment failure. The aim of the present study was to determine the centering capacity of ProTaper Universal™, Twisted File™ and Revo-S® rotary systems using cone beam computed tomography analysis before and after the instrumentation of root canals. MATERIALS AND METHODS Thirty mesiobuccal roots...

Journal: :مجله دندانپزشکی 0
محمد ضرابیان m. zarrabian مرضیه علیقلی m. aligholi نسترن لقمانی نژاد n. loghmani nejad

statement of problem: root canal cleaning and elimination of the source of infection are the most important basis and the main requirements for successful root treatment since the main cause of failure in root treatment is the permeation of bacteria or their products into the periapical tissues. nowadays, the newly designed and prcsented instruments for canal instrumentation can improve root tr...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
yazdan shantiaee endodontic department, dental school, shahid beheshti university of medical sciences, tehran, iran. omid dianat iranian center for endodontic research, endodontic department, dental school, shahid beheshti university of medical sciences, tehran, iran. mohammad ali mozayeni iranian center for endodontic research, endodontic department, dental school, shahid beheshti university of medical sciences. mohammad tajedin department of pediatric dentistry, tehran azad university, tehran, iran; soheila darmiani dental research center, department of endodontics, dental school, birjand university of medical sciences, birjand, iran. golbarg kolahi ahari maba of general linguistics, endocrinology and metabolism research center, shahid beheshti university of medical sciences, tehran, iran.

objectives: different chelators may be used during root canal treatment, offering various advantages including lubricant effect inside the canal and smear layer removal. however, chelator residues in narrow root canals can lead to apical microleakage. the aim of this in-vitro study was to compare apical microleakage following the use of three root canal chelators via fluid filtration method in ...

Golbarg Kolahi Ahari, Mohammad Tajedin , Mohammad Ali Mozayeni , Omid Dianat , Soheila Darmiani , Yazdan Shantiaee ,

Objectives: Different chelators may be used during root canal treatment, offering various advantages including lubricant effect inside the canal and smear layer removal. However, chelator residues in narrow root canals can lead to apical microleakage. The aim of this in-vitro study was to compare apical microleakage following the use of three root canal chelators via fluid filtration method in ...

Journal: :Research, Society and Development 2021

Introdução: A limpeza e modelagem, são etapas de extrema importância na instrumentação dos canais radiculares para que se tenha um tratamento endodôntico feito com excelência. Com o objetivo otimizar tempo trabalho apresentar material qualidade, foram criadas as limas NiTi (Niquel Titânio) asseguram sucesso. Os blocos acrílico usados uma padronização simulados. Objetivo: Esta pesquisa teve como...

Journal: :iranian endodontic journal 0
maryam vossoghi mitra vossoghi shahriar shahriari farhad faramarzi rasoul yousefi mashouf maryam farhadian

introduction: this in vitro study aimed to assess the effectiveness of a single-file rotary system (oneshape) in reduction of intracanal bacteria. methods and materials: eighty one single-rooted mandibular first premolars with single canals were used. six samples were selected as aseptic control group. seventy five remaining specimens were infected by enterococcus faecalis and incubated for 72 ...

Journal: :dental research journal 0
sayed ali mousavi vida kargar-dehnavi sayed amir mousavi

background: nickel-titanium (ni-ti) rotary instrument files are important devices in endodontics in root canal preparation. ni-ti file breakage is a critical and problematic issue and irrigation techniques were applied to decrease risk of file failure root. the aim of the present study was to compare the temperature gradient change of different irrigation solutions with ni-ti rotary instrument ...

2016
Fredson Marcio Acris de Carvalho Leonardo Cantanhede de Oliveira Gonçalves André Augusto Franco Marques Vanessa Alves Carlos Eduardo da Silveira Bueno Alexandre Sigrist De Martin

OBJECTIVE To compare cleaning effectiveness by histological analysis of a reciprocating single-file system with ProTaper rotary instruments during the preparation of curved root canals in extracted teeth. METHODS A total of 40 root canals with curvatures ranging between 20 - 40 degrees were divided into two groups of 20 canals. Canals were prepared to the following apical sizes: Reciproc size...

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