2010
DOI: 10.1111/j.1708-8240.2010.00360.x
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Abstract: The long-term maintenance of the surface quality of materials is fundamental to improving the longevity of esthetic restorations. In this manner, the use of surface sealants could be an important step in the restorative procedure using resin-based materials.

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Cited by 62 publications
(82 citation statements)
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“…It is important to stress that this is not necessarily the case of conventional microhardness tests, where much higher loads (in the range of 10 to 100 g) may be employed and much deeper depths may be reached, increasing the influence of the resin substrate on the measurements. Nevertheless, the present findings are in qualitative agreement with those from Bertrand et al 11 and Catelan et al 19 , where the application of a surface penetrating sealant reduced the microhardness values of the resin composites.…”
Section: Resultssupporting
confidence: 82%
“…It is important to stress that this is not necessarily the case of conventional microhardness tests, where much higher loads (in the range of 10 to 100 g) may be employed and much deeper depths may be reached, increasing the influence of the resin substrate on the measurements. Nevertheless, the present findings are in qualitative agreement with those from Bertrand et al 11 and Catelan et al 19 , where the application of a surface penetrating sealant reduced the microhardness values of the resin composites.…”
Section: Resultssupporting
confidence: 82%
“…Deterioration of resin materials probably occurred because of water absorption, such that the presence of water softened the resin by swelling the polymer network and reducing the frictional forces between the polymer chains 31,32) . Moreover, composite resins have high solubility in low-pH solutions, leading to surface erosion and dissolution, matrix softening, and loss of structural ions 27,28,33,34) . After 6 months of immersion, further softening of all the restorative materials was observed.…”
Section: Discussionmentioning
confidence: 99%
“…O estudo de Catelan et al 17 avaliou a influência de um selante de superfície na coloração de discos de resina (nanoparticulada -Supreme XT-e micro-híbrida -Vit-lescence e Opallis) expostos a envelhecimento por radiação Ultravioleta (UV) ou imersos em substâncias de coloração (refrigerante de cola, suco de laranja, vinho tinto e água destilada). Os autores verificaram que vinho tinto mostrouse com o maior nível de coloração em todas as amostras, corroborando os resultados de Lepri e Palma-Dibb 28 , tendo os outros líquidos estudados, valores intermediários de ΔE e a água destilada, valores mínimos.…”
Section: Discussionunclassified
“…As amostras foram medidas por espectrofotometria, usando o padrão CIE. Quando comparados à água destilada, a sequência elencada: chá preto, café, vinho tinto, suco de laranja e coca exibiram alterações de colorações significativas. Destes, o vinho tinto foi o que induziu maior alteração de cor, concordando com os estudos de Lepri e Palma-Dibb 28 e Catelan et al 17 .…”
Section: Discussionunclassified
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