Composite Resins
Mostrando 37-48 de 232 artigos, teses e dissertações.
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37. Anterior composite restorations in clinical practice: findings from a survey with general dental practitioners
Objectives: The aim of this study was to assess technical preferences of general dental practitioners when restoring anterior composite restorations. How the level of clinical experience or post-graduate training infuenced their options was also tested. Material and Methods: A cross-sectional study was performed using a questionnaire with general denta
J. Appl. Oral Sci.. Publicado em: 2013-12
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38. Cost analysis of materials used in Class III, IV and V composite resin restorations
AIM: To assess the total cost of direct and indirect materials used in Class III, IV and V composite resin direct restorations. METHODS: The calculation of costs was based on the method of variable costing system. A list of the materials was obtained by a panel of experts and based on the excellence standards established in the literature for dental team tre
Braz. J. Oral Sci.. Publicado em: 2013-12
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39. Microstructure and Mechanical Properties of Composite Resins Subjected to Accelerated Artificial Aging
A influência do sistema de envelhecimento artificial acelerado (EAA) na microestrutura e nas propriedades mecânicas das resinas compostas Z250, Filtek Supreme, 4 Seasons, Herculite, P60, Tetric Ceram, Charisma e Filtek Z100 foi investigada. Os compósitos foram caracterizados por espectroscopia de infravermelho com transformada de Fourier (FTIR) e análise
Braz. Dent. J.. Publicado em: 2013-12
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40. Do new matrix formulations improve resin composite resistance to degradation processes?
The aim of this study was to determine the degradation resistance of three new formulations-silorane-, Ormocer- and dimer-acid-based materials-and compare them to the traditional dimethacrylate-based materials. One silorane- (Filtek P90, P90), one Ormocer- (Ceram-X, CX), one dimer-acid- (N'Durance, ND) and two dimethacrylate-based (Filtek P60, P60; Tetric Ce
Braz. oral res.. Publicado em: 2013-09
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41. Influence of microhybrid resin and etching times on bleached enamel for the bonding of ceramic brackets
The aim of this study was to evaluate the shear bond strength (SBS) of polycrystalline ceramic brackets (PCB) bonded after bleaching treatment using different composite resins and enamel etching times. A total of 144 bovine incisors were randomly divided into two study groups (n = 72, each) as follows: G1, enamel bleached with 35% hydrogen peroxide, and G2 (
Braz. oral res.. Publicado em: 2013-04
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42. Imobilização de α-galactosidase de Aspergillus niger em resina de troca iônica Duolite A-568
Immobilized enzymes provide many advantages when compared to the usage of their free forms. Among these ones, remarkable advantages are the possibility of the biocatalyst reusability, easy separation at the end of the process, its usage in continuous way and the enhancement of its stability. This work was performed aiming the immobilization of the α-gal
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/07/2012
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43. Efeito in situ do clareamento caseiro e subseqüentes tratamentos de superfície na cor e rugosidade superficial de resinas compostas / In situ effect of home bleaching and subsequent surface treatment on color and surface roughness of composite resins
Este estudo avaliou in situ a susceptibilidade ao manchamento de duas resinas compostas Z350 XT® (M1) e Z250® (M2), ambas da 3M/ESPE por meio da alteração de cor e rugosidade superficial após o uso do agente clareador peróxido de carbamida 16% e subseqüentes tratamentos de superfície. Foram confeccionados 156 corpos-de-prova, n=13 para cada condiçã
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/04/2012
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44. EFFECT OF BLEACHING AGENTS ON COLOR OF COMPOSITE RESINS WITH DISTINCT OPACITYS STORED IN DIFERENT MEDIAS / INFLUÊNCIA DE AGENTES CLAREADORES NA COR DE RESINAS COMPOSTAS DE DIFERENTES OPACIDADES ARMAZENADAS EM MEIOS DISTINTOS
Este trabalho teve por objetivo avaliar a influência de dois agentes clareadores sobre a cor de uma resina composta (Filtek Z350 XT 3M ESPE) nas opacidades de esmalte e dentina, previamente submetidas à ação de água deionizada ou vinho tinto suave. Foram confeccionados 60 corpos-de-prova (cps) para cada resina composta utilizando uma matriz metálica co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/03/2012
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45. Influência da variação da intensidade de luz, para uma mesma exposição radiante, no comportamento mecânico de uma resina convencional e de uma resina de baixa contração / Influence of photoactivation modes, with the same radiant exposure, on mechanical properties of a convencional and a low-shrinkage composite
O presente estudo teve como objetivo avaliar a influência da variação da intensidade de luz, para uma mesma exposição radiante, na resistência à flexão, na microdureza e na resistência à tração diametral de uma resina convencional e de uma resina de baixa contração. Para a confecção dos corpos de prova foram utilizadas as resinas Filtek Z250
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/02/2012
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46. Wear mechanisms of dental composite restorative materials by two different in-vitro methods
In this work two very simple apparatuses, namely the ball crater (or ball-on-plate) and the linear reciprocating (or pin-on-plate) tests, were used in order to investigate the wear mechanisms of TPH Spectrum® and Resilab Master® dental composite resins. Loads in the range of 100 g to 1 kg and a total number of up to 24000 cycles were employed. During some
Mat. Res.. Publicado em: 21/12/2012
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47. Influence of different mould materials on the degree of conversion of dental composite resins
AIM: In this study, the degree of conversion (DC) was analyzed on the surfaces of dental composite resins cured in different mould materials with different irradiation times. METHODS: Samples of three composite resins (Grandio®, Grandio Flow® [thickness = 2 mm; 4 mm; Ø = 5 mm] irradiated for 10 s, 20 s and 40 s and an experimental composite (EXPM) [thickn
Braz. J. Oral Sci.. Publicado em: 2012-12
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48. Effects of etching and adhesive applications on the bond strength between composite resin and glass-ionomer cements
OBJECTIVE: This study determined the effects of various surface treatment modalities on the bond strength of composite resins to glass-ionomer cements. MATERIAL AND METHODS: Conventional (KetacTM Molar Quick ApplicapTM) or resin-modified (PhotacTM Fil Quick AplicapTM) glass-ionomer cements were prepared. Two-step etch-rinse & bond adhesive (AdperTM Single Bo
J. Appl. Oral Sci.. Publicado em: 2012-12