Carbamide Peroxide
Mostrando 13-24 de 59 artigos, teses e dissertações.
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13. Effect of Fluoride-Treated Enamel on Indirect Cytotoxicity of a 16% Carbamide Peroxide Bleaching Gel to Pulp Cells
Resumo O objetivo do presente estudo foi avaliar o possível efeito protetor de soluções fluoretadas aplicadas sobre o esmalte dentário frente à citotoxicidade trans-amelodentinária de um gel clareador com 16% de peróxido de carbamida (PC). O gel de PC foi aplicado sobre discos de esmalte/dentina adaptados a câmaras pulpares aiciais (8 h/dia) durante
Braz. Dent. J.. Publicado em: 2013-04
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14. 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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15. Avaliação espectrofotométrica da clareação caseira e de consultório sob o braquete ortodôntico em esmalte e dentina / Spectrophotometric evaluation of home and office bleaching treatment under orthodontic bracket in enamel and dentin
The objective of this study was to evaluate, through espetrofotometria reflectance, the effectiveness of dental bleaching under the orthodontic bracket, in black tea dyed enamel and dentin, using carbamide peroxide 15% and hydrogen peroxide and 38%. The sample consisted of 32 bovine incisors sectioned into blocks of 8 mm x 8 mm , with 1 mm of enamel and 1.5
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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16. Influence of fluoride-containing adhesives and bleaching agents on enamel bond strength
This study evaluated the influence of fluoride-containing carbamide peroxide (CP) bleaching agents and adhesive systems on bonded enamel interfaces that are part of the dynamic pH cycling and thermal cycling models. The buccal surfaces of 60 bovine incisors were restored with a composite resin and bonded with three- and two-step, etch-and-rinse, fluoride-con
Braz. oral res.. Publicado em: 2012-12
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17. Comparative clinical study of the effectiveness of different dental bleaching methods - two year follow-up
This study evaluated color change, stability, and tooth sensitivity in patients submitted to different bleaching techniques. MATERIAL AND METHODS: In this study, 48 patients were divided into five groups. A half-mouth design was conducted to compare two in-office bleaching techniques (with and without light activation): G1: 35% hydrogen peroxide (HP) (Lase P
J. Appl. Oral Sci.. Publicado em: 2012-08
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18. Ion release from a composite resin after exposure to different 10% carbamide peroxide bleaching agents
OBJECTIVE: This in vitro study evaluated the influence of two 10% carbamide peroxide bleaching agents - a commercial product (Opalescence PF; Ultradent Products, Inc.) and a bleaching agent prepared in a compounding pharmacy - on the chemical degradation of a light-activated composite resin by determining its release of ions before and after exposure to the
Journal of Applied Oral Science. Publicado em: 2012-06
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19. Effectiveness of different carbamide peroxide concentrations used for tooth bleaching: an in vitro study
OBJECTIVES: This in vitro study evaluated the effectiveness of three carbamide peroxide concentrations used for tooth bleaching treatments. MATERIAL AND METHODS: Sixty bovine dental slabs (6x6x3 mm) were obtained, sequentially polished, submitted to artificial staining (baseline) and randomized into four groups (n=15), according to the bleaching agent concen
Journal of Applied Oral Science. Publicado em: 2012-04
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20. Carbamide peroxide gel stability under different temperature conditions: is manipulated formulation an option?
Atualmente, a utilização de gel contendo peróxido de carbamida manipulado em Farmácia é uma prática comum na população. No entanto, a qualidade deste produto é questionada, sobretudo no que se refere à estabilidade deste fármaco. O objetivo deste trabalho consiste na avaliação da viabilidade de sintetizar e analisar quantitativamente este fárma
Brazilian Journal of Pharmaceutical Sciences. Publicado em: 2011-12
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21. Effects of different concentrations of carbamide peroxide and bleaching periods on the roughness of dental ceramics
The wide use of dental bleaching treatment has brought concern about the possible effects of hydrogen peroxide on dental tissue and restorative materials. The objective of this study was to evaluate in vitro the effect of nightguard bleaching on the surface roughness of dental ceramics after different periods of bleaching treatment. Fifteen specimens of 5 ×
Brazilian Oral Research. Publicado em: 2011-10
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22. Physical-chemical characteristics of whitening toothpaste and evaluation of its effects on enamel roughness
This in vitro study evaluated the physical-chemical characteristics of whitening toothpastes and their effect on bovine enamel after application of a bleaching agent (16% carbamide peroxide). Physical-chemical analysis was made considering mass loss by desiccation, ash content and pH of the toothpastes. Thirty bovine dental enamel fragments were prepared for
Brazilian Oral Research. Publicado em: 08/07/2011
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23. Influence of bioactive materials used on the dentin surface whitened with carbamide peroxide 16%
This study investigated the influence of bioactive materials on the dentin surface whitened. MATERIAL AND METHODS: Three bovine teeth were shaped into three dentin wafers. Each wafer was then sectioned, into six dentin slices. One slice from each tooth was distributed into one of 6 groups: 1.CG = control group (distilled water); 2.WT = whitening treatment; 3
Materials Research. Publicado em: 2010-06
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24. Avaliação clínica de um gel de nitrato de potássio e flúor na diminuição da sensibilidade no clareamento caseiro / Assessing the preventive effect of a desensitizing agent in sensitivity related to at-home bleaching.
O objetivo deste estudo clínico duplo-cego randomizado foi avaliar o efeito de um agente dessensibilizante (nitrato de potássio 5% e fluoreto de sódio 2% [Desensibilize KF 2%, FGM]) antes do clareamento dental na técnica caseira na prevenção/diminuição da sensibilidade dental. Foram selecionados 60 pacientes livres de lesões de cárie, com mais de 1
Publicado em: 2010