Results 31 to 40 of about 1,129,395 (186)

THE ABILITY OF TWO NICKEL-TITANIUM ROTARY SYSTEMS MADE OF DIFFERENT ALLOYS TO INDUCE DENTINAL RADICULAR MICROCRACKS [PDF]

open access: yesJournal of IMAB, 2019
Purpose: The objective of the present study was to evaluate the ability of two nickel-titanium rotary systems made of different alloys to induce dentinal radicular microcracks Materials and methods: Thirty – six extracted lower incisors were included in
Irina Tsenova   +2 more
doaj   +1 more source

Removal of filling material using rotating or reciprocating systems with or without solvent: microCT analysis

open access: yesBrazilian Oral Research, 2021
This study evaluated by the efficacy of rotary and reciprocating systems to remove filling material by micro-CT. Sixty human canines were instrumented up to F3 by ProTaper Universal system and filled with AH Plus/ gutta-percha.
Bárbara Maria BIS   +6 more
doaj   +1 more source

Comparative evaluation of flexural fracture resistance of mandibular premolars after instrumentation with four different endodontic file systems: An In Vitro study

open access: yesIndian Journal of Dental Research, 2020
Background: Under axial loading, there is stress concentration around the cervical areas especially in the premolars because of their location in the arch.
Gaurav L Aidasani   +2 more
doaj   +1 more source

A Comparative Study of ProTaper Universal and ProTaper Next Used by Undergraduate Students to Prepare Root Canals [PDF]

open access: yesJournal of Endodontics, 2017
The purpose of this study was to determine whether final-year undergraduate dental students achieved better shaping outcomes using the new ProTaper Next (PTN; Dentsply Sirona, Ballaigues, Switzerland) system to prepare root canals for the first time compared with the existing ProTaper Universal (PTU, Dentsply Sirona) system on which they had trained. A
Amin A.H. Alemam   +2 more
openaire   +2 more sources

Evidence for reduced torsional resistance of rotary files under curved position

open access: yesSaudi Dental Journal, 2021
Objectives: The aim of this in vitro study was to investigate the torsional fatigue resistance of different rotary files in straight and curved positions at a simulated intracanal temperature.
Ahmed Jamleh   +5 more
doaj   +1 more source

Effectiveness of different rotary file systems in removing the root canal filling material: A micro-computed tomography study [PDF]

open access: yesJournal of Dental Research, Dental Clinics, Dental Prospects, 2021
Background. This study aimed to examine the retreatment efficiency of four NiTi rotary file systems with micro-computed tomography (micro-CT). Methods.
Esin Özlek, Hüseyin Gündüz
doaj   +1 more source

Effects of sodium hypochlorite on corrosion of the rotary nickel-titanium endodontic instruments - SEM analysis [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2022
Introduction/Objective. of this study is to use scanning electron microscopy (SEM) analysis to examine surfaces of new and same sets of Ni-Ti instruments after canal preparations, to check their suspectability to corrosion. Methods.
Jovanović-Medojević Milica   +4 more
doaj   +1 more source

Root canal volume change and transportation by Vortex Blue, ProTaper Next, and ProTaper Universal in curved root canals. [PDF]

open access: yesRestor Dent Endod, 2018
The aim of this study was to compare root canal volume change and canal transportation by Vortex Blue (VB; Dentsply Tulsa Dental Specialties), ProTaper Next (PTN; Dentsply Maillefer), and ProTaper Universal (PTU; Dentsply Maillefer) nickel-titanium rotary files in curved root canals.Thirty canals with 20°-45° of curvature from extracted human molars ...
Park HJ, Seo MS, Moon YM.
europepmc   +4 more sources

Comparison of canal transportation in simulated curved canals prepared with ProTaper Universal and ProTaper Gold systems. [PDF]

open access: yesRestor Dent Endod, 2016
The purpose of this study was to assess the ability of ProTaper Gold (PTG, Dentsply Maillefer) in maintaining the original profile of root canal anatomy. For that, ProTaper Universal (PTU, Dentsply Maillefer) was used as reference techniques for comparison.Twenty simulated curved canals manufactured in clear resin blocks were randomly assigned to 2 ...
Silva EJ   +6 more
europepmc   +4 more sources

A comparative evaluation of dentinal defects after root canal preparation with different rotary and reciprocal systems

open access: yesNorthwestern Medical Journal, 2023
Aim: This study aimed to compare dentinal defects after root canal preparation with various reciprocating and continuous rotary files. Methods: 90 extracted human mandibular incisor teeth were used.
Ece Yakın   +2 more
doaj   +1 more source

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