Orthodontic Composites
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Comparison of antibacterial effects of orthodontic composites containing different nanoparticles on Streptococcus mutans at different times
RESUMO Introdução: O acúmulo de placa bacteriana pode causar lesões de mancha branca. A adição de nanopartículas nas resinas ortodônticas pode ser eficaz para reduzir o número e a função dos microrganismos. Objetivo: O objetivo do presente estudo foi avaliar os efeitos antibacterianos contra o Streptococcus mutans, em diferentes intervalos de t
Dental Press J. Orthod.. Publicado em: 2020-03
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2. Bacterial endotoxin adhesion to different types of orthodontic adhesives
Abstract Bacterial endotoxin (LPS) adhesion to orthodontic brackets is a known contributing factor to inflammation of the adjacent gingival tissues. Objective The aim of this study was to assess whether LPS adheres to orthodontic adhesive systems, comparing two commercial brands. Material and Methods Forty specimens were fabricated from Transbond XT and
J. Appl. Oral Sci.. Publicado em: 2017-08
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3. Effect of bonding protocol on shear bond strength of orthodontic brackets: An in vitro study
The aim of this study was to evaluate the shear bond strength of bracket composites as a function of the application of flow adhesive prior to the composite and light curing time.Material and methods:Freshly extracted bovine permanent central incisors (50) were acid etched and divided into four groups varying the attachment protocol: (1) no adhesive, composi
Matéria (Rio J.). Publicado em: 2014-09
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4. Clinical evaluation of the failure rate of metallic brackets bonded with orthodontic composites
O objetivo do presente estudo foi avaliar in vivo a taxa de falha de braquetes metálicos colados com dois compósitos ortodônticos. Dezenove pacientes com idades entre 10,5 e 38,7 anos, que necessitavam de tratamento ortodôntico corretivo, foram selecionados para estudo. As superfícies de esmalte de segundos pré-molares a segundos pré-molares foram tra
Braz. Dent. J.. Publicado em: 2012
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5. Clinical and laboratory evaluation of metallic brackets bonded with orthodontic composites / Avaliação clinica e laboratorial da colagem de braquetes metalicos com compositos ortodonticos
The aim of this study was to assess clinically and laboratory the bracket failure rate and shear bond strength of metallic brackets bonded with orthodontic composites. The in vivo study consisted of 20 patients aged between 10.5 to 15.1 years old who had sought corrective orthodontic treatment. Brackets were bonded of the second premolar - second premolar to
Publicado em: 2009
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6. Caracterização termomecânica de compósitos híbridos com memória de forma
The Shape Memory Alloys - SMA - are materials with the ability to recover a certain geometric form previously established upon heating. This singular behavior enables their application in many situations, from orthodontic arches and medical instruments to adaptative structures for shape and vibration control. Due to the complexity of their thermomechanical b
Publicado em: 2008
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7. Avaliação da resistência ao Cisalhamento de braquetes novos recolocados com diferentes resinas ortodônticas / Evaluation of shear bond strength of new metallic brackets rebounded with different orthodontic resins
The present study evaluated in vitro the shear bond strength of new bonded and rebounded metallic brackets with three orthodontic composites. Ninety extracted first superior premolars were randomly divided in three groups, according to the different tested composite. All bonding procedures followed the manufacturers specifications with a 300g standard pressu
Publicado em: 2007
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8. Avaliação in vitro da resistencia ao cisalhamento de braquetes metalicos com e sem composito incorporado a base e cimentos de ionomero de vidro com variação da superficie de esmalte
The aim of this study was to evaluate the shear bond strength from orthodontic brackets (Victory Series) bonded with composites (APC II and APC Plus) and resin-modified glass ionomer cements (Fuji Ortho LC and Fuji Ortho Band) applied on bovine enamel surface under different enamel conditions (either dry or moisten with distilled water). The adhesive remnant
Publicado em: 2005
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9. Estudo comparativo da resistência adesiva da interface resina/bráquete, sob esforços de cisalhamento, empregando três resinas compostas e três tipos de tratamentos na base do bráquete / Comparative study of the shear bond strenght of the resin/bracket interface, using three different resin composites and three different treatments in the bracket-base
Analyzing the fact that, todays, the bracket/resin union is mecanic and chemically gotten, we decided to evaluate: 1) shear bond strenght of the resin/bracket interface using three commercial marks of resin composites: Concise Orthodontic (chemical-cured), Transbond XT (light-cured) and Filtek TM Z-250 (light-cured); 2) the effect, in this bond strenght, of
Publicado em: 2004