نتایج جستجو برای: protaper

تعداد نتایج: 807  

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...

Journal: :Journal of endodontics 2014
Elio Berutti Mario Alovisi Michele Angelo Pastorelli Giorgio Chiandussi Nicola Scotti Damiano Pasqualini

INTRODUCTION Instrument failure caused by excessive torsional stress can be controlled by creating a manual or mechanical glide path. The ProGlider single-file system (Dentsply Maillefer, Ballaigues, Switzerland) was recently introduced to perform a mechanical glide path. This study was designed to compare the effect of a glide path performed with PathFiles (Dentsply Maillefer) and ProGlider on...

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: :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...

2018
Iussif Mamede-Neto Álvaro Henrique Borges Ana Helena Gonçalves Alencar Marco Antonio Hungaro Duarte Manoel Damião Sousa Neto Carlos Estrela

Objective To evaluate transportation (T) and centering ability (CA) of root canal preparations using continuous or reciprocating nickel-titanium endodontic files. Materials and Methods Ninety-six mesiobuccal root canals of mandibular first and second molars were randomly divided into 6 groups (n=16) according to the rotary file used: 1. ProTaper Next; 2. ProTaper Gold; 3. Mtwo; 4. BioRaCe; 5....

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...

Journal: :Medicina oral, patologia oral y cirugia bucal 2009
Milagros Martín-Micó Leopoldo Forner-Navarro Amelia Almenar-García

OBJECTIVE To determine variation in post-instrumentation working length and root area in the following rotary systems: ProTaper, RaCe, Mtwo and K3. STUDY DESIGN A sample of 40 resin blocks with double curvature (at 14 and 16 mm) and a 33 degrees angle was used. Working length was verified with a digital measure using a number 10 K file. The specific sequence for each rotary system was followe...

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