نتایج جستجو برای: rotary instrumentation system

تعداد نتایج: 2251044  

Bakhtiar, Hengameh, Farhad, Ali reza,

Comparison of apical transport in three rotary systems and one modified technique Dr. A.R. Farhad* - Dr. H. Bakhtiar*** - Assistant Professor of Endodontics Dept. - Faculty of Dentistry – Isfahan University of Medical Sciences. **- Endodontist. Background and Aim: Procedural errors such as canal transportation and loss of working length are mainly associated with stainless steel files with insu...

2011
Mohammad Ali Mozayeni Amin Golshah Nafiseh Nik Kerdar

INTRODUCTION The aim of this study was to assess the extent of adoption, application and the associated issues with the nickel-titanium (NiTi) rotary instruments and techniques amongst endodontists and general dentists in Tehran. MATERIALS AND METHODS A total of 33 questions classified in six categories of demographics, frequency rate of NiTi rotary instrumentation and information. The sample...

2010
Shruthi Nagaraja B V Sreenivasa Murthy

BACKGROUND Controlled, uniformly tapered radicular preparation is a great challenge in endodontics. Improper preparation can lead to procedural errors like transportation of foramen, uneven dentine thickness, stripping of root canal, formation of ledge, zip, and elbow in curved canals. These procedural errors and their sequel can adversely affect the prognosis of treatment. AIM/OBJECTIVES The...

Journal: :iranian endodontic journal 0
zahra sadat madani daryoush goudarzipour azam haddadi akam saeidi ali bijani

introduction: apical transportation changes the physical shape and physiologic environment of the root canal terminus. the aim of the present experimental study was to determine the extent of apical transportation after instrumentation with hand k-flexofile and k3 rotary instruments by means of cone-beam computed tomography (cbct). methods and materials: forty mesiobuccal root canals of maxilla...

Bidar, Maryam, Kharazifard, Mohammad javad, Madani, Azamosadat, Zarei, Mina,

Comparison of the remaining smear layer following use of manual and rotary instruments with various speeds Dr. M. Bidar* - Dr. M. Zarei** - Dr. A.A Madani***, Dr. MDJ. Kharazifard**** * Associate Professor of Endodontics Dept., Faculty of Dentistry, Mashhad University of Medical Sciences. ** Assistant Professor of Endodontics Dept., Faculty of Dentistry, Mashhad University of Medical Sciences. ...

Journal: :dental research journal 0
m. h. zarrabi m. bidar h. jafarzadeh a. talati

introduction various kinds of hand-held or rotary techniques are used for mechanical preparation of the canal. the purpose of this study was to assess the influence of the number of applications on apical extrusion of debris in conventional and two rotary instrumentation techniques (profile, flex master). methods and materials in this in vitro study, 75 extracted single-rooted human mandibular ...

2017
Maryam Forghani Maryam Hezarjaribi Hamidreza Teimouri

BACKGROUND The aim of this in vitro study was to compare the shaping characteristics of two types of nickel-titanium endodontic file systems with regard to the following parameters: Canal straightening, Canal deviation and Instrumentation time. MATERIAL AND METHODS Fifty severely curved canals simulated in resin blocks were prepared to an apical size 25 using Protaper Universal orNeolix syste...

2016
Farhin Katge Vamsi Krishna Chimata Manohar Poojari Shilpa Shetty Bhavesh Rusawat

OBJECTIVES The aim of this study was to compare the cleaning efficacy and instrumentation time between manual Hedstrom files (H-files) and rotary Mtwo files in primary molar root canals. MATERIALS AND METHODS A total of 90 primary root canals were selected using standardized radiographs. The canals were injected with India ink with 30 gauge insulin syringe and divided into three groups. Group...

2017
Negar Mokhtari Alireza-Sarraf Shirazi Masoumeh Ebrahimi

Background Techniques with adequate accuracy of working length determination along with shorter duration of treatment in pulpectomy procedure seems to be essential in pediatric dentistry. The aim of the present study was to evaluate the accuracy of root canal length measurement with Root ZX II apex locator and rotary system in pulpectomy of primary teeth. Material and Methods In this randomiz...

Journal: :Brazilian dental journal 2007
Orlando Limongi Diana Santana de Albuquerque Flares Baratto Filho José Roberto Vanni Elias P Motcy de Oliveira Fernando Branco Barletta

This in vitro study compared, using computed tomography (CT), the amount of dentin removed from root canal walls by manual and mechanical rotary instrumentation techniques. Forty mandibular incisors with dental crown and a single canal were selected. The teeth were randomly assigned to two groups, according to the technique used for root canal preparation: Group I - manual instrumentation with ...

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