Dentin Bonding System
Mostrando 25-36 de 64 artigos, teses e dissertações.
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25. Influência da clorexidina gel, etanol e hipoclorito de sódio na resistência de união à dentina radicular e durabilidade adesiva de pinos de fibra de vidro reembasados com resina composta / Influence of gel chlorexidine, ethanol and sodium hypoclorite on the bond strenght to root dentin and adhesive durability of the fiber post relined with resin composite
The bond strength of posts to root dentin can be compromised over time by adhesive interface degradation. Therefore, the aim of this study was to investigate the effects of pre-treatment of root dentin with 2% chlorhexidine (CHX), 100% ethanol (EtOH) and 5.25% sodium hypochlorite (NaOCl), as well as the association of these substances, on the bond strength a
Publicado em: 2010
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26. Influência de variáveis metodológicas no valor da resistência de união material adesivo/substrato dentinário e, no padrão de fratura: ensaio de "micro" cisalhamento / Methodological variables influence on bonding of adhesive material/dentin substrate and fracture pattern micro shear test
A influência de variáveis metodológicas no valor da resistência de união e no padrão de fratura, por ensaio de microcisalhamento, foi verificada em dentina planificada de molares humanos e estudada em quatro diferentes experimentos, nos quais dois sistemas adesivos foram utilizados (Adper Single Bond 2 e XP Bond) e uma resina composta (Filtek Z250). Fo
Publicado em: 2010
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27. Estudo comparativo dos efeitos de antimicrobianos utilizados para a limpeza de cavidades ou incorporados ao sistema adesivo na resistência e degradação da união resina/dentina submetida ao envelhecimento / A comparative study of antibacterial effect of antibacterial agents used as a cavity disinfectants or incorporated in an adhesive system in the bond strenght and bonding degradation of the resin/dentin interface
Os objetivos nesta tese, apresentada em dois capítulos, foram avaliar o efeito da clorexidina-CHX e do monômero antibacteriano 12-metacriloxidodecilpiridíneo-MDPB na resistência e degradação da união resina/dentina desmineralizada por até doze meses de armazenamento. Capítulo 1: O objetivo deste estudo in vitro foi avaliar o efeito da CHX e/ou de di
Publicado em: 2010
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28. Influência do sistema de cimentação e do modo de ativação na resistência ao push-out de pinos de fibra de vidro / Influence of cementation system and activation mode on push-out bond strength of glass fiber posts
O objetivo deste estudo foi avaliar a influência do tipo de sistema de cimentação (condicionamento ácido total ou autoadesivo), do modo de ativação (autoativado ou dual), do terço do conduto radicular (cervical, médio ou apical) e da espessura do filme de cimento sobre a resistência de união de pinos de fibra de vidro cimentados em dentes humanos.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/12/2009
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29. Effect of an additional hydrophilic versus hydrophobic coat on the quality of dentinal sealing provided by two-step etchand-rinse adhesives
OBJECTIVE: To test the hypothesis that the quality of the dentinal sealing provided by two-step etch-and-rinse adhesives cannot be altered by the addition of an extra layer of the respective adhesive or the application of a more hydrophobic, non-solvated resin. MATERIAL AND METHODS: full-crown preparations were acid-etched with phosphoric acid for 15 s and b
Journal of Applied Oral Science. Publicado em: 2009-06
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30. Chemical, microbiological and mechanical analysis of adhesive system contaning antibacterial monomer and fluoride bonded to dentin / Analise quimica, microbiologica e da resistencia de união a dentina do sistema adesivo contendo monomero antibacteriano e ions fluoreto
The antibacterial monomer 12-methacryloyloxydodecylpyridinium bromide (MDPB) was incorporated with fluoride component in Clearfil Protect Bond adhesive system to help in secondary caries prevention. Thus, the present study conducted three in vitro experiments with the aim to evaluate the fluoride and MDPB effects in cavity disinfection, bonding durability on
Publicado em: 2009
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31. Efeitos da dose de radiação X na resistencia de união de diferentes sistemas adesivoa a dentina / Effect of x-ray radiation dose on the bond strength of different adhesive systems to dentin
This study investigated the influence of different x-ray radiation doses on the bond strength of adhesive restorations to dentin mediated by systems presenting distinct bonding strategies. Flat dentin surfaces in human molars were obtained and cylinder-shaped specimens for the microshear bond test were build-up with a composite (Z250, 3M ESPE), using three a
Publicado em: 2009
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32. Influence of voids in the hybrid layer based on self-etching adhesive systems: a 3-D FE analysis
The presence of porosities at the dentin/adhesive interface has been observed with the use of new generation dentin bonding systems. These porosities tend to contradict the concept that etching and hybridization processes occur equally and simultaneously. Therefore, the aim of this study was to evaluate the micromechanical behavior of the hybrid layer (HL) w
Journal of Applied Oral Science. Publicado em: 2009
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33. Chemical degradation of adhesive materials bonded to dentin substrate : mechanical and micromorphologic analysis / Degradação quimica da união de materiais adesivos ao substrato dentinario : analise mecanica e micromorfologica
The purpose of this study was to evaluate the effect of the dynamic chemical challenge pH (DES/RE solutions) and storage regimen on degradation of resin/dentin-bonding using the microtensile bond strength (µTBS) and quantify fluoride release from the adhesive system. Superficial occlusal dentin of extracted human molars was exposed and wet ground with 600-g
Publicado em: 2009
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34. AvaliaÃÃo da micromorfologia da interface adesiva composta por diferentes tipos de sistemas
This study aimed to find the relation between different compositions of self-etch and total-etch adhesive systems and the quality of the achieved adhesive interface. Fifty dental discs were obtained from extracted human third molars and were divided into 10 groups. The total-etching technique was used in 6 groups, followed by the adhesives One Coat Bond SL (
Publicado em: 2009
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35. Influence of ativation of self-etching adhesives systems on the microtensile bond strength and quality of hibrydization in dentin and enamel / Influencia da distancia da ativação dos sistemas adesivos autocondicionantes na resistencia de união e qualidade da hibridização em dentina e esmalte
The self-etching adhesives systems present high water content that are used as solvent for acid monomer ionization. The presence of the excess of this solvent in the hybrid layer can compromise its the formation, as well as to affect the polymerization of monomers producing bonding interfaces permeables. The use of self-etching adhesives in clinical situatio
Publicado em: 2009
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36. Influence of intrapulpal pressure simulation on the bond strength of adhesive systems to dentin
The purpose of this study was to evaluate the influence of intrapulpal pressure simulation on the bonding effectiveness of etch & rinse and self-etch adhesives to dentin. Eighty sound human molars were distributed into eight groups, according to the permeability level of each sample, measured by an apparatus to assess hydraulic conductance (Lp). Thus, a simi
Brazilian Oral Research. Publicado em: 2008-06