Color stability, surface roughness and microhardness of composites submitted to mouthrinsing action
DOI:
https://doi.org/10.1590/S1678-77572012000200013Palavras-chave:
Composite resins, Oral hygiene, Dental materials, Physical propertiesResumo
OBJECTIVE:The purpose of this study was to evaluate the effect of mouth rinse solutions on color stability, surface roughness and microhardness of two composite resins. MATERIAL AND METHODS: Fifty test specimens of each composite (Filtek Z250 and Z350; 3M ESPE) were made using a teflon matrix (12x2 mm). Color, surface roughness and Knoop microhardness baseline measurements of each specimen were made and specimens (n=10) were immersed in 5 mouth rinse solutions: G1: distilled water (control), G2: Plax Classic, G3: Plax alcohol-free; G4: Periogard, and G5: Listerine. Final measurements of color, roughness and microhardness were performed and the results submitted to statistical analysis (2-way ANOVA, Bonferroni s test; p<0.05). RESULTS: The most significant color change was observed for Z250 when immersed in Listerine (p<0.05). Z350 showed greater color change when immersed in Plax alcohol-free (p<0.05), but with no significant difference for Listerine (p>0.05). With regard to roughness, both composites showed significant changes when immersed in Listerine in comparison with Plax alcohol-free (p<0.05). Microhardness of Z350 was shown to be significantly changed when the composite was immersed in Plax alcohol-free (p<0.05). CONCLUSION: Composite changes depended on the material itself rather than the mouth rinse solution used.Downloads
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2012-04-01
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Todo o conteúdo do periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons do tipo atribuição CC-BY.
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Color stability, surface roughness and microhardness of composites submitted to mouthrinsing action. (2012). Journal of Applied Oral Science, 20(2), 200-205. https://doi.org/10.1590/S1678-77572012000200013