Rotary Niti Instruments
Mostrando 1-12 de 25 artigos, teses e dissertações.
-
1. Torsional fatigue strength of reciprocating and rotary pathfinding instruments manufactured from different NiTi alloys
Abstract To evaluate the torsional properties of engine-driven pathfinding instruments manufactured from different NiTi alloys – R-Pilot (tip size 12.5;.04 taper; M-Wire) and One G (tip size 14;.03 taper; Conventional NiTi). A total of 40 NiTi instruments from engine-driven pathfinding instruments (n = 20) were used. The torsion tests followed ISO 3630-1 (
Braz. oral res.. Publicado em: 28/10/2019
-
2. Micro-CT evaluation of apical enlargement of molar root canals using rotary or reciprocating heat-treated NiTi instruments
Abstract Objective The aim of this study was to evaluate the root canal preparation and apical enlargement of molar root canals with rotary or reciprocating heat-treated nickel-titanium (NiTi) instruments, by using micro-computed tomography (micro-CT). Methodology Mesial root canals (n=48) of mandibular molars, with a curvature between 20° and 40°, wer
J. Appl. Oral Sci.. Publicado em: 12/08/2019
-
3. Nickel–titanium instruments in endodontics: a concise review of the state of the art
Abstract: The introduction of automated instrumentation in endodontics represented a major advance in progress for this specialty, with improvements in the quality and predictability of root canal preparation and a significant reduction in procedural errors. In recent years, endodontic instruments have undergone a series of changes brought about by modificat
Braz. oral res.. Publicado em: 18/10/2018
-
4. Topographic and Chemical Analysis of Reciprocating and Rotary Instruments Surface after Continuous Use
Resumo Este estudo teve como objetivo avaliar as alterações nas características de superfície e teor de NiTi de instrumentos reciprocantes e rotatórios após uso contínuo. Trinta instrumentos novos foram separados em três grupos (n=10): Grupo PNX1 - ProTaper Next system - instrumento X1; Grupo PNX2 - ProTaper Next system - instrumento X2 e Grupo WO -
Braz. Dent. J.. Publicado em: 2017-08
-
5. Influence of NiTi alloy on the root canal shaping capabilities of the ProTaper Universal and ProTaper Gold rotary instrument systems
Abstract Objective This study aimed to evaluate the influence of the NiTi wire in Conventional NiTi (ProTaper Universal PTU) and Controlled Memory NiTi (ProTaper Gold PTG) instrument systems on the quality of root canal preparation. Material and Methods Twelve mandibular molars with separate mesial canals were scanned using a high-definition microcompute
J. Appl. Oral Sci.. Publicado em: 2017-02
-
6. Volume of sealer in the apical region of teeth filled by different techniques: a micro-CT analysis
Abstract The volume of sealer in the apical 1 mm of teeth filled using different techniques was evaluated by micro-commuted tomography (micro-CT). Sixty-four maxillary central incisors were prepared using NiTi rotary instruments. Teeth were randomly distributed into four groups according to root canal sealers (AH Plus, Endofill, Sealapex, and Sealer 26) and
Braz. oral res.. Publicado em: 28/03/2016
-
7. Effect of different torques in cyclic fatigue resistance of K3 rotary instruments
Aim: To assess the effect of different torque values on cyclic fatigue resistance of K3 rotary nickel-titanium (NiTi) files.
Methods: Eighty K3 files, size 25 mm, taper 0.04 were divided in 4 groups according to different torques (0.5, 1, 2 and 6 Ncm) and were submitted to a cyclic fatigue test. This tes
Braz. J. Oral Sci.. Publicado em: 2015-06
-
8. Cyclic Fatigue Resistance of Rotary NiTi Instruments after Simulated Clinical Use in Curved Root Canals
Resumo O objetivo deste estudo foi avaliar a resistência à fadiga cíclica de instrumentos rotatórios de níquel-titânio após simulação de uso clinico em canais curvos (curvatura de 40° e raio de 5 mm). Trinta e seis instrumentos, calibre n° 25 conicidade 0,04, foram divididos em três grupos: o Grupo A com um ciclo de uso; Grupo B, três ciclos de
Braz. Dent. J.. Publicado em: 2013-04
-
9. Efficacy of NiTi rotary instruments in removing calcium hydroxide dressing residues from root canal walls
The aim of this study was to evaluate the efficacy of three rotary instrument systems (K3, ProTaper and Twisted File) in removing calcium hydroxide residues from root canal walls. Thirty-four human mandibular incisors were instrumented with the ProTaper System up to the F2 instrument, irrigated with 2.5% NaOCl followed by 17% EDTA, and filled with a calcium
Brazilian Oral Research. Publicado em: 2012-02
-
10. Dental students' perceptions about the endodontic treatments performed using NiTi rotary instruments and hand stainless steel files
Este estudo avaliou a percepção de alunos de graduação de uma Faculdade de Odontologia brasileira sobre os tratamentos endodônticos realizados utilizando instrumentos rotatórios de níquel-titânio (NiTi) e manuais de aço-inoxidável. Os dados foram coletados por meio de um questionário semi-estruturado aplicado aos alunos de graduação matriculados
Braz. Dent. J.. Publicado em: 2012
-
11. Avaliação por meio da microscopia eletrônica de varredura da limpeza e deformação de instrumentos rotários após a instrumentação de canais radiculares / Evaluation by scanning electron microscopy of cleaning and deformation of rotary instruments after use
O presente estudo teve como objetivo avaliar, por meio da microscopia eletrônica de varredura (M.E.V.), a remoção de detritos e deformação superficial sofrida pelos sistemas endodônticos rotatórios de NiTi BioRace (BR); Protaper (PT) e Twisted File (TF) após cada uso, totalizando cinco usos, simulando as condições clínicas. Um total de 75 molares
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/11/2011
-
12. Análise comparativa em microtomografia do preparo dos canais mesiais de molares inferiores por quatro sistemas rotatórios de níquel-titânio / A comparison of four nickel-titanium Rotary system to prepare mesial root canals of mandibular molars. A microcomputed tomography study
O objetivo deste estudo foi avaliar por meio da microtomografia computadorizada (micro-CT), a qualidade do preparo dos canais mesiais de molares inferiores, realizado pelos sistemas rotatórios de níquel-titânio (NiTi), ProTaper, Mtwo, BioRaCe e Twisted File. As variáveis testadas foram: habilidade em manter o canal centralizado, extensão e direção dos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/05/2011