2013
DOI: 10.4012/dmj.2011-267
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Effect of different beverages on the color stability and degree of conversion of nano and microhybrid composites

Abstract: This study sought to evaluate the effects of different staining solutions on the colour stability of nanocomposites compared with micro hybrid resin and to evaluate the degree of conversion of these two materials. Two different shades of two different composites were cured in polytetraflouroethylene disk rings. Coffee, tea and cola drinks were used as staining solutions, and distilled water was used as a control. Data were statistically analysed using a paired T-test with a significance level of 5%. Nano compo… Show more

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Cited by 62 publications
(59 citation statements)
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“…2 Denture discoloration can be caused by many factors, which can be divided into intrinsic factors, such as the characteristics of the material composition (e.g., type of photoinitiator and inorganic material), and extrinsic factors relating to wear and exposure to staining substances causing absorption and adsorption of stains. 1,2,[4][5][6] Several authors have shown the effect of beverages on the color stability of direct and indirect restorative materials [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] and acrylic resin denture bases. [23][24][25][26][27][28] The authors [7][8][9] observed that both composite and glass ionomer cement are susceptible to staining by the action of various beverages.…”
mentioning
confidence: 99%
“…2 Denture discoloration can be caused by many factors, which can be divided into intrinsic factors, such as the characteristics of the material composition (e.g., type of photoinitiator and inorganic material), and extrinsic factors relating to wear and exposure to staining substances causing absorption and adsorption of stains. 1,2,[4][5][6] Several authors have shown the effect of beverages on the color stability of direct and indirect restorative materials [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] and acrylic resin denture bases. [23][24][25][26][27][28] The authors [7][8][9] observed that both composite and glass ionomer cement are susceptible to staining by the action of various beverages.…”
mentioning
confidence: 99%
“…Em seu estudo, Al Kheraif et al 14 buscaram avaliar a mudança de coloração em resinas compostas nano e microhibridas. A resina composta nanohíbrida mostrou descoloração significativamente superior quando comparada a micro-híbrida.…”
Section: Discussionunclassified
“…Os potenciais de coloração dessas soluções variam de acordo com suas composições e propriedades 14 . A descoloração, provocada pelos testes in vitro, pode ser avaliada de forma visual ou usando técnicas instrumentais.…”
Section: Revisão Da Literaturaunclassified
“…Porém, contrariando os resultados do presente estudo, verificou-se que o compósito utilizado Opallis foi vulnerável à ação dos agentes pigmentantes, principalmente do café. Tal fato pode ser justificado devido à alta temperatura da solução (80 ± 5 °C), que acelera o processo de manchamento, se comparado com as outras soluções utilizadas no presente estudo 24,25 . Assim, por haver compatibilidade das matrizes resinosas dos compósitos com os corantes amarelos do café e pelo baixo grau de polaridade da bebida, os corantes são absorvidos e associados à matriz polimérica do material, ao contrário do que ocorre em soluções mais polares, como água destilada, por exemplo, em que ocorre o processo de adsorção 25 .…”
Section: Discussionunclassified