Internal Bleaching
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Fracture resistance of bleached teeth restored with different procedures
This study evaluated the fracture resistance of teeth submitted to internal bleaching and restored with different non-metallic post. Eighty mandibular incisors were endodontically treated and randomly divided in 10 groups (n = 8): G1- restored with composite resin (CR), G2- CR + fiber-reinforced composite post (FRC, Everstick post, Sticktech) cemented with r
Materials Research. Publicado em: 19/06/2012
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2. Effect of different restorative procedures on the fracture resistance of teeth submitted to internal bleaching
The aim of this study was to evaluate the influence of different restorative procedures on the fracture resistance of endodontically treated teeth submitted to intracoronal bleaching. Fifty upper central incisors were distributed into 5 groups: GI - healthy teeth; GII - endodontically treated teeth sealed with Coltosol; GIII - endodontically treated teeth bl
Brazilian Oral Research. Publicado em: 2012-02
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3. Fracture resistance of teeth subjected to internal bleaching and restored with different procedures
Este estudo avaliou a resistência à fratura de dentes submetidos ao clareamento interno restaurados com diferentes procedimentos. Quarenta incisivos superiores foram tratados endodonticamente e divididos em 4 grupos (n = 10): G1- restaurados com resina composta (RC), G2- clareados com peróxido de hidrogênio (PH) e restaurados com o RC, G3- restaurado com
Brazilian Dental Journal. Publicado em: 2011
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4. Evaluation of the effect of the bleaching agent and the subsequent application of sodium fluoride on intra-coronal dentine microhardness / Avaliação do efeito do agente clareador e da subseqüente aplicação de fluoreto de sódio na microdureza da dentina intracoronária
The aim of the present study was to evaluate the microhardness of intra-coronal dentine submitted to bleaching with 38% hydrogen peroxide, photo-activated with LED-Laser and followed by the application of 2% sodium fluoride gel or 5% varnish. Crowns of 45 human maxillary canines were sectioned in the buccal-lingual direction and a sample of 25 mm of internal
Publicado em: 2009
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5. Permeability of different groups of maxillary teeth after 38% hydrogen peroxide internal bleaching
Este estudo avaliou a influência do clareamento interno com peróxido de hidrogênio (H2O2) a 38% na permeabilidade da dentina coronária de dentes anteriores superiores e pré-molares superiores. Quatorze incisivos centrais (IC), incisivos laterais (IL), caninos (C), primeiros (1PM) e segundos (2PM) pré-molares foram seccionados transversalmente e distrib
Brazilian Dental Journal. Publicado em: 2009
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6. Determination of internal bovine dental bleaching with different bleaching agents / Determinação do grau de clareamento interno de dentes bovinos submetidos a diferentes agentes clareadores.
The purpose of this study was to evaluate the bleaching effect of 37% carbamide peroxide, sodium perborate mixed with distilled water and sodium perborate mixed with 35 hydrogen peroxide on artificially stained pulpless teeth. Eighteen bovine teeth were sectioned 3mm apical of the cement-enamel junction and were divided into eight groups. Four groups was dir
Publicado em: 2008
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7. Influência da aplicação de diferentes procedimentos restauradores sobre a resistência à fratura de dentes submetidos ao clareamento dental interno com peróxido de hidrogênio a 38% e fotoativação pelo sistema LED-laser / Influence of application of different restorative materials on the resistance to fracture of teeth submitted to internal dental bleaching with 38% hydrogen peroxide photo activated by the LED-laser system
The objective of this study was evaluate the influence of different restorative procedures in the resistance to fracture of endodontically treated teeth submitted to internal bleaching procedure. Fifty central upper incisors were divided into 5 groups according to treatment: GI- healthy teeth (control); GII- endodontically treated teeth sealed with Coltosol;
Publicado em: 2008
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8. Influence of different formulations of bleaching agents on enamel and dentin physical and chemical properties / Influencia de diferentes formulações de agentes clareadores nas propriedades fisicas e quimicas do esmalte e dentina
Section A: Effects of bleaching agents on dental enamel Since the introduction of the nightguard vital bleaching technique using 10% carbamide peroxide (10% CP), reports have evaluated the effects of bleaching agents on human enamel. Evidences show that CP is able to alter the composition and morphology of enamel substrate. In order to reduce the adverse eff
Publicado em: 2007
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9. PreparaÃÃo de novos compÃsitos suportados em matriz de fibra vegetal/natural. / Preparation of new composites of phenolic resin (matriz) in natural/vegetal fibers
In recent years there was a rapid development in the field of composites reinforced by natural fibers like (jute, sisal, coir, hemp etc). Natural fibers are an important alternative, offering several advantages such their abundant, biodegrability, light weight, renewability, are not toxic, presents low cost application compared with synthetic fibers and may
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/03/2006
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10. AvaliaÃÃo da efetividade de agentes quÃmicos empregados em procedimentos clareadores de dentes desvitais
A finalidade deste estudo foi verificar a efetividade e velocidade de agentes clareadores internos, bem como as alteraÃÃes morfolÃgicas dentinÃrias propiciadas por estes. Para o teste da efetividade/velocidade de clareamento foram selecionados 50 incisivos bovinos divididos, aleatoriamente, em grupos:1â carbopol (controle);2- perborato de sÃdio + Ãgua
Publicado em: 2006
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11. Efeito de agentes clareadores internos nos procedimentos restauradores adesivos em diferentes intervalos de tempo apos o clareamento
Discoloration of a pulpless tooth is an esthetic problem which requires treatment. The nonvital bleaching is considered a conservative, safe and low cost alternative to reestablish the original tooth color compared to invasive treatments. The use of bleaching agents could influence the restorative bonding procedures. However, the role of the elapsed time fol
Publicado em: 2002
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12. Cytoplasmic viscosity near the cell plasma membrane: translational diffusion of a small fluorescent solute measured by total internal reflection-fluorescence photobleaching recovery.
Total internal reflection-fluorescence recovery after photobleaching (TIR-FRAP) was applied to measure solute translational diffusion in the aqueous phase of membrane-adjacent cytoplasm. TIR fluorescence excitation in aqueous solutions and fluorescently labeled cells was produced by laser illumination at a subcritical angle utilizing a quartz prism; microsec