نتایج جستجو برای: reciproc file rotary system

تعداد نتایج: 2269593  

Journal: :Journal of endodontics 2012
Hyeon-Cheol Kim Sang-Won Kwak Gary Shun-Pan Cheung Dae-Hoon Ko Se-Min Chung WooCheol Lee

INTRODUCTION The use of reciprocating movement was claimed to increase the resistance of nickel-titanium (NiTi) file to fatigue in comparison with continuous rotation. Recently 2 new brands of NiTi files 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 2 files, Reciproc and WaveOne. METHODS Cyclic...

Journal: :Medicina oral, patologia oral y cirugia bucal 2010
Shiva Sadeghi Masoomeh Abolghasemi

OBJECTIVES Today many clinicians use both stainless-steel hand K-files and nickel- titanium rotary files during endodontic treatment. It is of great importance for the clinician to have confidence in the accuracy of an apex locator even if these files were used interchangeably. The purpose of this in vitro study was to evaluate the accuracy of the Raypex5 electronic apex locator using stainless...

2015
Patricia Fonseca de Souza Leonardo Cantanhede Oliveira Goncalves Andre Augusto Franco Marques Emilio Carlos Sponchiado Junior Lucas da Fonseca Roberti Garcia Fredson Marcio Acris de Carvalho

OBJECTIVE The complete filling material removal during endodontic retreatment is a clinical procedure difficult to achieve. The aim of this study was to evaluate the efficacy of reciprocating and continuous rotary nickel-titanium instruments used in root canal retreatment. MATERIALS AND METHODS Forty freshly extracted human premolars were cleaned and shaped by the crown-down technique, follow...

Journal: :iranian endodontic journal 0
marcelo santos coelho carlos eduardo fontana augusto shoji kato alexandre sigrist de martin carlos eduardo da silveira bueno

introduction: the aim of this in vitro study was to evaluate the effects of establishing glide path on the centering ability and preparation time of two single-file reciprocating systems in mesial root canals of mandibular molars. methods and materials: sixty extracted mandibular molars with curvatures of 25-39 degrees and separate foramina for the mesiobuccal and mesiolingual canals, were divi...

2014
Kiumars Nazarimoghadam Mohammad Daryaeian Nahid Ramazani

OBJECTIVE The aim of ideal canal preparation is to prevent iatrogenic aberrations such as transportation. The aim of this study was to evaluate the root canal transportation by Reciproc file with and without glide path. MATERIALS AND METHODS Thirty acrylic-resin blocks with a curvature of 60° and size#10 (2% taper) were assigned into two groups (n= 15). In group 1, the glide path was performe...

Journal: :JPMA. The Journal of the Pakistan Medical Association 2016
Sana Ehsen Nagi Farhan Raza Khan Munawar Rahman

This experimental study was done on extracted human teeth to compare the fracture and deformation of the two rotary endodontic files system namely K-3 and Protapers. It was conducted at the dental clinics of the Aga Khan University Hospital, Karachi, A log of file deformation or fracture during root canal preparation was kept. The location of fracture was noted along with the identity of the ca...

2015
Demet Altunbas Betul Kutuk Alper Kustarci

OBJECTIVE The purpose of this study was to evaluate the shaping ability of three nickel-titanium systems in simulated curved canals. MATERIALS AND METHODS Sixty simulated canals were prepared to apical size 25 with Reciproc, S5, and twisted file (TF) instruments. Standardized pre and postoperative images were taken using a digital camera, were superimposed and aberrations were recorded. Mater...

Journal: :The journal of contemporary dental practice 2013
Surbhi Kakar Anil Dhingra Himanshu Sharma

AIM To assess and compare the shaping potential of manual NiTi K-files and Rotary ProTaper instruments in narrow canals using CT. OBJECTIVE To assess the shaping potential of manual NiTi K-files and Rotary ProTaper and analyzing the final outcome of shaped canals using CT and determining different variables, like • Working time • Change in volume • Change in cross-sectional area. MATERIALS ...

2015
Swati Sharma Rajendra Kumar Tewari Pankaj Kharade Pankaj Kharade

Background and aims. The manufacturing process of rotary Ni-Ti file can influence its resistance to fracture. The rotary ProFile (Dentsply-Maillefer, Baillagues, Switzerland) is manufactured by grinding mechanism whereas Twisted File (Sy-bron Endo, USA) is manufactured with a twisting method. The purpose of this study was to comparatively evaluate the effect of manufacturing process on distorti...

ژورنال: مجله دندانپزشکی 2004
آشفته یزدی, کاظم, اسلامی, محمد, سلیمانی, علی, شیخ‌رضایی, محمد سعید,

Statement of Problem: Root canal cleaning and shaping are important steps in endodontic therapy. In order to develop better techniques, new instruments are constantly designed and delivered to the market.Purpose: The aim of the present study was to compare the effectiveness of one manual with three rotary root canal instrumentations techniques.Materials and Methods: In this in-vitro study, 80 m...

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