نتایج جستجو برای: protaper next

تعداد نتایج: 196469  

Journal: :iranian endodontic journal 0
abbas delvarani nahid mohammadzadeh akhlaghi raana aminirad seyed aliakbar vahdati sohrab tour savadkouhi

introduction: the aim of this in vitro study was to compare the amount of apically extruded debris after root canal preparation using rotary and reciprocating systems in severely curved root canals. methods and materials: thirty six extracted human mandibular first molars with 25-35 ° curvature in their mesiobuccal (mb) canal (according to schneider’s method) were cleaned and shaped with protap...

2016
Aditi Jain Hemant Asrani Abhinav Chand Singhal Taranjeet Kaur Bhatia Vaibhav Sharma Pragya Jaiswal

AIMS To compare the canal transportation, centering ability, and remaining dentin thickness of WaveOne and ProTaper systems using cone beam computed tomography. SUBJECTS AND METHODS Forty extracted human single-rooted premolars were used in the present study. Preinstrumentation scanning of all teeth was taken; canal curvatures were calculated, and the samples were randomly divided into two gr...

Journal: :International endodontic journal 2012
I Abramovitz S Relles-Bonar B Baransi A Kfir

AIM To test the efficacy of a two-stage retreatment method in which the Self-Adjusting File (SAF) is used to remove root canal filling residue left in the canal after using ProTaper Universal retreatment files. METHOD One of the curved mesial canals of 25 extracted mandibular molars was instrumented up to ProTaper F2, followed by NiTi K-files up to size 45 and filled. Radiographs of these can...

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...

2016
Mohsen Aminsobhani Mohamad Saleh Khalatbari Naghmeh Meraji Abdollah Ghorbanzadeh Ehsan Sadri

ARTICLE INFO ABSTRACT Article Type: Original Article Introduction: The aim of this study was to compare several metallurgic properties of Neoniti instrument with four other commonly used endodontic rotary files. Methods and Materials: Neoniti A1 (25/0.08), RaCe (25/0.06), Mtwo (25/0.06), Twisted file (25/0.06) and ProTaper Next X2 (25/0.06) were examined by differential scanning calorimetry (DS...

2017
Salwa Yammine Edgard Jabbour Paul Nahas Zeina Majzoub

Introduction The present in vitro study aimed to evaluate and compare the changes in shape and surface area of the major foramen following shaping of curved canals with three new generation NiTi engine-driven instruments naming ProTaper Next, BT RaCe and WaveOne Gold- with 3 different levels of protrusion beyond the major apical foramen. Methods and Materials A total of 45 extracted human mol...

Journal: :International endodontic journal 2005
A Guelzow O Stamm P Martus A M Kielbassa

AIM To compare ex vivo various parameters of root canal preparation using a manual technique and six different rotary nickel-titanium (Ni-Ti) instruments (FlexMaster, System GT, HERO 642, K3, ProTaper, and RaCe). METHODOLOGY A total of 147 extracted mandibular molars were divided into seven groups (n = 21) with equal mean mesio-buccal root canal curvatures (up to 70 degrees), and embedded in ...

Journal: :The journal of contemporary dental practice 2013
K Balakoti Reddy Shreemoy Dash Sowmya Kallepalli Sangeetha Vallikanthan N Chakrapani Vamsi Kalepu

OBJECTIVES The present study was conducted to compare the cleaning efficacy (debris and smear layer removal) of hand and two NiTi rotary instrumentation systems (K3 and ProTaper). MATERIALS AND METHODS Sixty single rooted human maxillary anterior teeth decoronated at the cementoenamel junction were used. All the specimens were divided into four groups of 15 teeth each, group I--ProTaper rotar...

Journal: :The journal of contemporary dental practice 2012
N V Murali Krishna Chakka P Ratnakar Sanjib Das Anandamy Bagchi Sudhir Sudhir Lavanya Anumula

AIMS Visual and microscopic evaluation of defects caused by torsional fatigue in hand and rotary nickel titanium (NiTi) instruments. MATERIALS AND METHODS Ninety-six NiTi greater taper instruments which were routinely used for root canal treatment only in anterior teeth were selected for the study. The files taken include ProTaper for hand use, ProTaper Rotary files and Endowave rotary files....

Journal: :Journal of endodontics 2009
Diana Gekelman Ramya Ramamurthy Sahar Mirfarsi Frank Paqué Ove A Peters

INTRODUCTION The purpose of this study was to assess canal preparation outcomes in vitro by novice clinicians after standardized teaching sessions. METHODS All students received a training session. In experiment 1, twenty canals of mandibular molars were prepared with GT and ProTaper rotaries by 10 students. Standardized radiographs were exposed before and after canal preparation, and canal c...

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