نتایج جستجو برای: rotary instrumentation system

تعداد نتایج: 2251044  

Journal: :International endodontic journal 2016
M Marending P Biel T Attin M Zehnder

AIM To assess two contemporary rotary instrumenting systems subjectively and objectively in a pre-clinical student course setting. METHODOLOGY Undergraduate dental students (n = 44) prepared mesiolingual canals of 3D-printed mandibular molar replicas (RepliDens, Zurich, Switzerland). The HyFlex and BioRace rotary systems, both previously unknown to the students, were used according to the man...

2016
Anil James Aditya Shetty Mithra N Hegde

Aim: This in vitro study was performed to evaluate the apical transportation between Hyflex files, Twisted files and Protaper next single file rotary system by motic imaging. Materials & Methods: Sixty Endo Training Blocks were used in the study. Pre instrumentation photos of the simulated apical foramen are recorded using an optical microscope and then coupled into the motic imaging software a...

2017
J. Sylvia Western Daniel Devaprakash Dicksit

BACKGROUND All endodontic instrumentation systems tested so far, promote apical extrusion of debris, which is one of the main causes of postoperative pain, flare ups, and delayed healing. OBJECTIVES Of this meta-analysis was to collect and analyze in vitro studies quantifying apically extruded debris while using Hand ProTaper (manual), ProTaper Universal (rotary), Wave One (reciprocating), an...

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...

2017
Niharika Jain Ajinkya M. Pawar Piyush D. Ukey Prashant K. Jain Bhagyashree Thakur Abhishek Gupta

OBJECTIVES To compare the relative axis modification and canal concentricity after glide path preparation with 20/0.02 hand K-file (NITIFLEX®) and 20/0.04 rotary file (HyFlex™ CM) with subsequent instrumentation with 1.5 mm self-adjusting file (SAF). MATERIALS AND METHODS One hundred and twenty ISO 15, 0.02 taper, Endo Training Blocks (Dentsply Maillefer, Ballaigues, Switzerland) were acquire...

2016
Nalam NVD Prasanthi Tanikonda Rambabu Girija S Sajjan K Madhu Varma R Kalyan Satish M Padmaja

AIM The aim of this study was to measure the increase in root canal surface area and canal transportation after biomechanical preparation at 1, 3, and 5 mm short of the apex with three different rotary systems in both continuous rotary and reciprocating rotary motions. MATERIALS AND METHODS Sixty freshly extracted human mandibular molars with mesial root canal curvatures between 20° and 30° w...

Journal: :iranian endodontic journal 0
shahriar shahriari department of endodontics, dental school, hamadan university of medical sciences, hamadan, iran. hasan abedi department of endodontics, dental school, hamadan university of medical sciences, hamadan, iran. mahdi hashemi general practitioner, hamadan, iran seyed mohsen jalalzadeh department of endodontics, dental school, hamadan university of medical sciences, hamadan, iran.

introduction: the aim of this study was to evaluate the amount of dentine removed after canal preparation using stainless steel (ss) hand instruments or rotary profile instruments. materials and methods: thirty-six extracted human teeth with root canal curvatures less than 30º were embedded in clear polyester resin. the roots were cut horizontally at apical 2, 4 and 7 mm. dentin thickness was m...

2017
Xiao-Mei Hou Zheng Su Ben-Xiang Hou

BACKGROUND In endodontic therapy, continuous rotary instrumentation reduced debris compared to reciprocal instrumentation, which might affect the incidence of post-endodontic pain (PP). The aim of our study was to assess whether PP incidence and levels were influenced by the choice of rotary or reciprocal instruments. METHODS In this meta-analysis the Pubmed and EM databases were searched for...

Journal: :Journal of endodontics 2011
Anne Wiseman Timothy C Cox Avina Paranjpe Natasha M Flake Nestor Cohenca James D Johnson

BACKGROUND The purpose of this study was to use micro-computed tomography (micro-CT) scanning to evaluate the efficacy of sonic and passive ultrasonic irrigation (PUI) on calcium hydroxide (Ca[OH](2)) removal and to measure the volume and percentage of Ca(OH)(2) remaining in the root canal system. METHODOLOGY The root canals of 46 extracted human mandibular molar teeth were prepared with rota...

ژورنال: مجله دندانپزشکی 2004
آشفته یزدی, کاظم, شیخ‌رضایی, محمد سعید, عشقیار, نصرت‌اله, فرزانه, بابک,

Statement of Problem: Total removal of tissues and remnant microorganisms as well as canal shaping are the essential objectives of endodontic therapy. A successful endodontic treatment is obtained through Shilder’s principals, however complete observation of this technique using stainless steel files manually is problematic and time-consuming. Modern technology, in order to eliminate such probl...

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