Results 21 to 30 of about 2,455,996 (380)

Cyclic fatigue resistance of three reciprocating nickel-titanium instruments with heat treatment at intrachannel temperature

open access: yesRevista Facultad de Odontología Universidad de Antioquia, 2023
Introduction: the in vitro study compared the dynamic cyclic fatigue resistance of 3 reciprocating NiTi files with heat treatment. Methods: we distributed 30 new endodontic files in three groups. The endodontic files selected for this experiment were: AF
Maria Alejandra Portillo-Martínez   +4 more
doaj   +1 more source

Are Physics Forceps Less Traumatic than Conventional Forceps for Tooth Extraction? A Systematic Review and Meta-Analysis of Randomized Controlled Trials

open access: yesDentistry Journal, 2022
This systematic review and meta-analysis studied the clinical outcomes with physics forceps compared to those with conventional forceps for closed dental extraction.
Ashutosh Kumar Singh   +5 more
doaj   +1 more source

Effect of deep cryogenic treatment on cyclic fatigue resistance of controlled memory wire nickel-titanium rotary instruments

open access: yesDental Research Journal, 2020
Background: Cryogenic methods have been used to increase the wear, abrasion, corrosion resistance and to improve the strength of metals. The aim of this study was to evaluate the effect of cryogenic treatment on the cyclic fatigue resistance of rotary ...
Yazdan Sabet   +4 more
doaj   +1 more source

Effect of different separated nickel–titanium rotary instruments on apical microleakage: An in vitro study

open access: yesSaudi Endodontic Journal, 2022
Introduction: Endodontic instrument separation is one of the iatrogenic errors which may affect the outcome of treatment. The present in vitro study was aimed to investigate the effect of different cross-sectional designs of separated nickel–titanium (Ni-
Roohollah Sharifi   +5 more
doaj   +1 more source

Apical root canal cleaning after preparation with endodontic instruments: a randomized trial in vivo analysis [PDF]

open access: yesRestorative Dentistry & Endodontics, 2020
ObjectivesThis study aimed to evaluate vital pulp tissue removal from different endodontic instrumentation systems from root canal apical third in vivo.Materials and MethodsThirty mandibular molars were selected and randomly divided into 2 test groups ...
Volmir João Fornari   +6 more
doaj   +1 more source

Dental treatment and risk of variant CJD - a case control study [PDF]

open access: yes, 2007
Objective: Knowledge of risk factors for variant CJD (vCJD) remains limited, but transmission of prion proteins via re-useable medical devices, including dental instruments, or enhanced susceptibility following trauma to the oral cavity is a concern ...
A. J. Smith   +21 more
core   +1 more source

Apical debris extrusion of single-file systems in curved canals

open access: yesEndodontology, 2021
Objectives: The aim of this study was to compare the apical debris extrusion after using three different single-file systems. Materials and Methods: Mesial roots with curved canals of extracted mandibular molar teeth were randomly divided into three ...
Ecehan Hazar   +4 more
doaj   +1 more source

Titanium Nitride and Nitrogen Ion Implanted Coated Dental Materials [PDF]

open access: yes, 2012
Titanium nitride and/or nitrogen ion implanted coated dental materials have been investigated since the mid-1980s and considered in various applications in dentistry such as implants, abutments, orthodontic wires, endodontic files, periodontal/oral ...
Al Jabbari, Youssef S.   +5 more
core   +3 more sources

Role of the flat-designed surface in improving the cyclic fatigue resistance of endodontic NiTi rotary instruments [PDF]

open access: yes, 2019
The aim of this study was to investigate the role of the flat-designed surface in improving the resistance to cyclic fatigue by comparing heat-treated F-One (Fanta Dental, Shanghai, China) nickel-titanium (NiTi) rotary instruments and similar prototypes,
D'Angelo, M.   +8 more
core   +1 more source

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