Dental Resins
Mostrando 13-24 de 131 artigos, teses e dissertações.
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13. 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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14. Effects of zirconia nanoparticles addition to experimental adhesives on radiopacity and microhardness
AIM: To evaluate the radiopacity and microhardness (KHN) of experimental dental adhesives (EX). The experimental adhesive resins of the present study were formulated based on the simplified adhesive system Ambar (FGM). METHODS: Five EX with different concentrations of zirconia nanoparticles [0(EX0), 15(EX15), 25(EX25), 30(EX30) e 50%(EX50)] were incorporated
Braz. J. Oral Sci.. Publicado em: 2013-12
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15. Hardness and degree of conversion of dental restorative composites based on an organic-inorganic hybrid
This paper presents a factorial design (mixture design) used to analyze the hardness and degree of monomer conversion into composites containing conventional monomers and an organic-inorganic hybrid polymer-based methacryloyloxypropyl trimethoxysilane (MEMO). For this purpose, resins (composites with SiO2) were formulated with the hybrid polymer (polycondens
Mat. Res.. Publicado em: 11/06/2013
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16. Catechin-incorporated dental copolymers inhibit growth of Streptococcus mutans
Objective: To test the inhibitory growth activity of green tea catechin incorporated into dental resins compared to resins containing the broad-spectrum antimicrobial compound chlorhexidine against Streptococcus mutans in vitro. Material and Methods: The minimum inhibitory concentrations (MICs) of epigallocatechin-gallate (EGCg) and chlorhexidine (CHX) w
J. Appl. Oral Sci.. Publicado em: 2013-04
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17. 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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18. Avaliação in vitro do efeito da incorporação de clorexidina nas propriedades físicas e na atividade antibacteriana de resinas acrílicas autopolimerizáveis / Effect of the incorporation of chlorhexidine in provisional crown and bridge acrylic resins on their physical properties
Objetivo. O objetivo do presente estudo foi avaliar o efeito da incorporação de diacetato de clorexidina (CDA), em diferentes concentrações e tempos de armazenamento, nas propriedades físicas e na atividade antibacteriana de resinas acrílicas, utilizadas na confecção de coroas e pontes provisórias. Métodos. Fase I: Foram confeccionados 150 corpos d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/02/2012
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19. 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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20. 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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21. Clinical strategies for esthetic excellence in anterior tooth restorations: understanding color and composite resin selection
Direct composite resin restorations have become a viable alternative for patients that require anterior restorative procedures to be integrated to the other teeth that compose the smile, especially for presenting satisfactory esthetic results and minimum wear of the dental structure. Technological evolution along with a better understanding of the behavior o
Journal of Applied Oral Science. Publicado em: 2012-04
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22. Multi-species biofilm of Candida albicans and non-Candida albicans Candida species on acrylic substrate
OBJECTIVE: In polymicrobial biofilms bacteria extensively interact with Candida species, but the interaction among the different species of the Candida is yet to be completely evaluated. In the present study, the difference in biofilm formation ability of clinical isolates of four species of Candida in both single-species and multi-species combinations on th
Journal of Applied Oral Science. Publicado em: 2012-02
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23. Desgaste abrasivo de uma resina composta, através de três diferentes métodos (disco retificado, escovação e nanodurômetro) / Abrasive wear of a composite resin, using three different methods (ground disc, toothbrushing and nanodurometer)
Neste estudo, foi avaliada a resistência ao desgaste abrasivo de uma resina composta, através de três diferentes métodos: do disco retificado, por escovação e do nanodurômetro. Nos dois primeiros métodos, foram utilizados 20 espécimes da resina Filtek Z250 (10 da cor Incisal e 10 da cor C4, ambos fotopolimerizados por 30 segundos cada) e 10 de polim
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/09/2011
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24. Influência da rugosidade e energia livre de superfície de materiais para próteses removíveis a base de polimetilmetacrilato nas propriedades do biofilme de Candida albicans / Influence of the roughness and free energy surfasse of the materials for removable prosthesis the base of polymethymethacrylate in the properties of biofilm of Candida albicans
The properties of surface of the resins and reliners base of polymethymethacrylate used in removable dental prosthesis can interfere in the adhesion, colonization and formation of biofilm of Candida spp., microorganism associated to the prosthetic stomatitis. The objective of this research was to evaluate the influence of the roughness and the free energy of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011