Results 11 to 20 of about 1,129,395 (186)

Cyclic fatigue testing of ProTaper Universal and ProTaper Next rotary instruments of different diameters [PDF]

open access: yesStomatološki glasnik Srbije, 2023
Introduction Sudden fracture of instruments without previous warning signs, which occurs due to cyclic and torsional fatigue, represents the biggest problem and one of the most difficult complications during endodontic therapy.
Stošić Nenad   +9 more
doaj   +4 more sources

Flexibility of K3 and ProTaper universal instruments [PDF]

open access: yesBrazilian Dental Journal, 2011
This study used a mechanical test to evaluate the flexibility of instruments from the K3 (conicity 0.04) and the ProTaper Universal systems when they were new and after 5 uses in simulated canals. Five sets of instruments of each system were tested: K3 (15, 20, 25, 30, 35, 40 and 45) and ProTaper Universal (S1, S2, F1, F2, F3, F4 and F5).
Grazziotin-Soares, Renata   +6 more
openaire   +5 more sources

Effect of hand files, rotary protaper universal and protaper retreatment files on crack formation in dentin [PDF]

open access: yesInternational journal of health sciences, 2022
Background: The aim of the study was to compare the effect of hand files, rotary protaper universal files and protaper retreatment files on crack formation in dentin. Methods: Eighty mandibular premolar teeth with single canals are selected and mounted on resin blocks with simulated periodontal ligaments.
Monika Sharma   +5 more
openaire   +2 more sources

Variations in cyclic fatigue resistance among ProTaper Gold, ProTaper Next and ProTaper Universal instruments at different levels

open access: yesInternational Endodontic Journal, 2015
Abstract Aim To compare the cyclic fatigue resistance of ProTaper Gold ( PTG , Dentsply Tulsa Dental Specialities, Tulsa, OK , USA), ProTaper Next ( PTN
Ersoy, I.   +5 more
openaire   +4 more sources

Apical extrusion of debris using ProTaper Universal and ProTaper Next rotary systems

open access: yesInternational Endodontic Journal, 2014
AbstractAimTo assess and compare the amount of extruded debris after canal preparation using ProTaper Universal and ProTaper Next files.MethodologyForty extracted mandibular premolars with single canals and of similar lengths were instrumented using the ProTaper Universal F3 or the ProTaper Next X3.
Nigar Yilmaz   +4 more
openaire   +4 more sources

Formación de microfisuras dentinarias en la preparacion químico mecánica del conducto radicular con los sistemas protaper universal, protaper next y twisted file adaptive [PDF]

open access: yesOdontología Sanmarquina, 2016
Objetivo :La presente investigación buscó evaluar la formación de microfisuras dentinarias en el conducto radicular después de la preparación químico mecánica con los sistemas Protaper Universal, Protaper Next y TF Adaptive.
Marisa Jara Castro   +4 more
doaj   +2 more sources

Comparison of Apical debris Extrusion of ProTaper Universal rotary and SafeSiders reciprocal Systems

open access: yesJournal of Dental School
Objectives During root canal preparation, dentinal chips, irrigants, and pulp remnants are extruded into the pre-radicular space. This phenomenon may lead to post-endodontic flare-ups.
Zohreh Ahangari   +4 more
doaj   +2 more sources

Comparison of debris extruded apically and working time used by ProTaper Universal rotary and ProTaper retreatment system during gutta-percha removal

open access: yesJournal of Applied Oral Science, 2010
OBJECTIVE: The aim of this study was to evaluate the in vitro action of ProTaper retreatment files and ProTaper Universal in the retreatment of mandibular premolars.
Mary Kinue Nakamune Uezu   +3 more
doaj   +2 more sources

A Stereomicroscopic Evaluation of Dentinal Cracks at Different Instrumentation Lengths by Using Different Rotary Files (ProTaper Universal, ProTaper Next, and HyFlex CM): An Ex Vivo Study [PDF]

open access: yesScientifica, 2016
Introduction. The aim of the present study was to evaluate the dentinal cracks after root canal preparation with rotary files: Gates Glidden, ProTaper Universal, ProTaper Next, and HyFlex CM at different instrumentation lengths. Methodology.
Fauzia Ashraf   +5 more
doaj   +2 more sources

Effects on the incidence of dentinal microcracks in curved root canal preparation with ProTaper Universal and ProTaper Gold

open access: yes口腔疾病防治, 2021
Objective This study aims to compare the incidence of dentinal microcracks produced by ProTaper Universal (PTU) and ProTaper Gold (PTG) file systems during root canal procedures in different curved canals using a dyeing technique. Methods Sixty extracted
LI Shuhui   +5 more
doaj   +2 more sources

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