Rotary Instrumentation
Mostrando 13-24 de 48 artigos, teses e dissertações.
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13. Assessment of apically extruded debris and irrigant produced by different nickel-titanium instrument systems
The aim of this study was to evaluate the preparation time and the amounts of apically extruded debris and irrigant using different nickel-titanium instrumentation systems. Forty-five extracted single-rooted mandibular premolar teeth were selected and divided into three groups. The root canals were instrumented according to the manufacturers’ instructions,
Braz. oral res.. Publicado em: 11/11/2014
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14. Changes in root canal anatomy using three nickel-titanium rotary system: a cone beam computed tomography analysis
AIM: Cone beam computed tomography (CBCT) was used to evaluate the ability of three NiTi rotary systems to maintain the original root canal anatomy. METHODS: Sixty mesiobuccal canals of human mandibular first molars were divided into three groups with 20 root canals each. All teeth were scanned by CBCT before instrumentation. The images were captured digital
Braz. J. Oral Sci.. Publicado em: 2013-12
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15. Wizard CD Plus and ProTaper Universal: analysis of apical transportation using new software
OBJECTIVE: This study has two aims: 1) to evaluate the apical transportation of the Wizard CD Plus and ProTaper Universal after preparation of simulated root canals; 2) to compare, with Adobe Photoshop, the ability of a new software (Regeemy) in superposing and subtracting images. MATERIAL AND METHODS: Twenty five simulated root canals in acrylic-resin b
J. Appl. Oral Sci.. Publicado em: 2013-09
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16. Análise ao longo do tempo da postura do profissional endodontista durante o preparo químico-mecânico do sistema de canais radiculares / Analysis over time endodontist\ s professional attitude during the chemomechanical preparation of root canals
O trabalho e as condições em que este é realizado são fatores preponderantes no estado de saúde integral do indivíduo. As lesões por esforços repetitivos (LER) e os distúrbios osteomusculares relacionados ao trabalho (DORT) em profissionais da saúde, principalmente cirurgiões dentistas, tem demonstrado aumento significativo e crescente. O objetivo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/03/2012
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17. Influence of the apical enlargement size on the endotoxin level reduction of dental root canals
Gram-negative bacteria play an essential role in endodontic infections because they have virulence factors such as endotoxin. Due to its potential cytotoxic activity, special attention has been given to the removal/neutralization of this endotoxin in the root canal system. OBJECTIVE: The aim of this study was to evaluate the influence of the apical enlargeme
J. Appl. Oral Sci.. Publicado em: 2012-12
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18. Assessing apical transportation in curved canals: comparison between cross-sections and micro-computed tomography
The aim of this study was to compare two methods of assessing apical transportation in curved canals after rotary instrumentation, namely, cross-sections and micro-computed tomography (µCT). Thirty mandibular molars were divided into two groups and prepared according to the requirements of each method. In G1 (cross-sections), teeth were embedded in resin bl
Brazilian Oral Research. Publicado em: 2012-06
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19. Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments
OBJECTIVE: This study assessed the muscular activity during root canal preparation through kinematics, kinetics, and electromyography (EMG). MATERIAL AND METHODS: The operators prepared one canal with RaCe rotary instruments and another with Flexo-files. The kinematics of the major joints was reconstructed using an optoelectronic system and electromyographic
Journal of Applied Oral Science. Publicado em: 2012-02
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20. Avaliação da influência dos ângulos de flexão das limas no preparo do batente apical pelas técnicas de instrumentação manual e rotatória / Assessment of files flexion angles influence in the apical stop preparation using manual and rotary instrumentation techniques
Introdução: A habilidade dos instrumentos endodônticos em modelar os canais radiculares é frequentemente avaliada em termos de manutenção das curvaturas originais dos canais evitando assim eventos iatrogênicos. O objetivo deste estudo foi avaliar a influência dos ângulos de flexão das limas durante a instrumentação do canal radicular na forma fin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/2011
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21. Parâmetros da ação antimicrobiana e da citotoxidade do ozônio para aplicação na Endodontia / Parameters of the antimicrobial activity and cytotoxicity of ozone for use in Endodontics
This study analyzed the action of ozone as an adjunct to endodontic therapy. So (I) evaluated the effectiveness of ozonated water in microbial reducing performed on bacterial suspension of Enterococcus faecalis, Pseudomonas aeruginosa and Staphylococcus aureus - in vitro study (II) tested the efficiency of ozone gas and ozonated water in reducing microbial h
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2011
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22. Influência do alargamento foraminal na anatomia apical e na qualidade de selamento após obturação / Influence of apical foramen widening on apical foramen morphology and apical sealing
Introduction: The aim of this study was to evaluate the influence of the working length and apical foramen widening on the anatomy of the apical foramen and on the sealing ability after root canal filling. Methods: Fifty-five palatal roots of maxillary molars were selected. The samples were randomly divided into three groups (n=15) according to the different
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/04/2011
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23. Evaluation of three instrumentation techniques at the precision of apical stop and apical sealing of obturation
OBJECTIVE: The aim of this study was to investigate the ability of two NiTi rotary apical preparation techniques used with an electronic apex locator-integrated endodontic motor and a manual technique to create an apical stop at a predetermined level (0.5 mm short of the apical foramen) in teeth with disrupted apical constriction, and to evaluate microleakag
J. Appl. Oral Sci.. Publicado em: 03/06/2011
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24. Efficacy of five rotary systems versus manual instrumentation during endodontic retreatment
O propósito deste estudo foi avaliar a eficiência dos instrumentos rotatórios ProFile, GT, ProTaper, Race e K3 comparados com limas K para a remoção do material obturador durante o retratamento. Sessenta pré-molares inferiores foram instrumentados com o sistema rotatório GT e obturados usando a técnica de compactação termomecânica de guta-percha c
Brazilian Dental Journal. Publicado em: 2011