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Estudo comparativo da rugosidade e estabilidade da cor após a utilização de três sistemas de polimento em resina composta estética
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Resumo(s)
Objetivos: Avaliar a rugosidade de superfície e a estabilidade da cor após a utilização de três sistemas de polimento sobre a resina composta nanoparticulada estética Filtek™ Supreme XTE Universal Restorative, 3M™, ESPE™, sendo que um dos sistemas de polimento avaliado foi recentemente lançado no mercado: All Surfaces Access Diamond Polishers® (A.S.A.P.® Dailies).
Materiais e Métodos: Nove discos (10 mm x 2 mm) de resina composta nanoparticulada (Filtek™ Supreme XTE Universal Restorative) foram produzidos. Três amostras foram aleatoriamente distribuídas por três protocolos de polimento diferentes: sistema Sof-Lex XT com aplicação de pasta diamantada DiaPolisher (SPD), sistema Diatech Polishers ShapeGuard Composite (SGC) e o novo sistema de polimento All Surfaces Access Diamond Polishers Dailies® (ASAP). Após o polimento, a rugosidade de superfície foi medida pelo microscópio de força atómica, seguido pela imersão das amostras em vinho tinto (Casal da Eira, 11% vol.) durante 7 dias ininterruptamente, em estufa a 37ºC. Ao fim deste período, sob renovação diária do meio de coloração, a respetiva variação da cor (ΔE) foi medida pelo espectrofotómetro. A análise estatística foi realizada pelo programa IBM SPSS Statistics 28, através dos testes ANOVA Oneway, t de Student para uma
amostra, Tukey HSD e Correlação de Spearman.
Resultados: O protocolo ASAP apresentou menor rugosidade de superfície (Sa = 9,50 ± 0,77 nm). O protocolo SPD apresentou maior rugosidade de superfície (Sa = 70,40 ± 2,99 nm) e diferenças estatisticamente significativas com os protocolos SGC e ASAP (p < 0,05). Quanto à estabilidade de cor, o protocolo ASAP apresentou maior variação de cor (ΔE = -3,54 ± 7,90).
Conclusões: O protocolo de polimento que demonstrou significativamente maior rugosidade foi o protocolo SPD. Não existiram diferenças estatisticamente significativas para a alteração de cor entre os diferentes protocolos de polimento.
Objectives: To evaluate surface roughness and color stability after the use of three polishing systems on nanofilled resin composite aesthetics Filtek™ Supreme XTE Universal Restorative, 3M™, ESPE™, being one of this polishing systems recently launched on the market: All Surfaces Access Diamond Polishers® (A.S.A.P.® Dailies). Materials and Methods: Nine discs (10 mm x 2 mm) of nanofilled resin composite (Filtek™ Supreme XTE Universal Restorative) were produced. Three samples were randomly distributed over three different polishing protocols: Sof-Lex XT system with application of diamond paste DiaPolisher (SPD), Diatech Polishers ShapeGuard Composite (SGC) and a new polishing protocol All Surfaces Access Diamond Polishers Dailies® (ASAP). After polishing, the surface roughness was measured through atomic force microscopy, followed by immersion of samples on red wine (Casal da Eira, 11% vol.) for 7 days, uninterruptedly, in an oven at 37ºC. At the end of this period, under daily renewal of the staining medium, the color change (ΔE) was measured by spectrophotometer. Statistics analysis was performed by IBM SPSS Statistics 28, through ANOVA Oneway, one sample t-test, Tukey HSD and Spearman Correlation tests. Results: The lowest surface roughness was obtained in ASAP polishing protocol (Sa = 9,50 ± 0,77 nm). The highest surface roughness was registered in SPD polishing protocol (Sa = 70,40 ± 2,99 nm) and it has statistically significant differences with SGC e ASAP polishing protocols (p < 0,05). Regarding to color stability, the highest color change was measured in ASAP protocol (ΔE = -3,54 ± 7,90). Conclusions: The SPD polishing protocol was the protocol with the highest significant roughness. No statistically significant differences were found for color change among the different polishing protocols.
Objectives: To evaluate surface roughness and color stability after the use of three polishing systems on nanofilled resin composite aesthetics Filtek™ Supreme XTE Universal Restorative, 3M™, ESPE™, being one of this polishing systems recently launched on the market: All Surfaces Access Diamond Polishers® (A.S.A.P.® Dailies). Materials and Methods: Nine discs (10 mm x 2 mm) of nanofilled resin composite (Filtek™ Supreme XTE Universal Restorative) were produced. Three samples were randomly distributed over three different polishing protocols: Sof-Lex XT system with application of diamond paste DiaPolisher (SPD), Diatech Polishers ShapeGuard Composite (SGC) and a new polishing protocol All Surfaces Access Diamond Polishers Dailies® (ASAP). After polishing, the surface roughness was measured through atomic force microscopy, followed by immersion of samples on red wine (Casal da Eira, 11% vol.) for 7 days, uninterruptedly, in an oven at 37ºC. At the end of this period, under daily renewal of the staining medium, the color change (ΔE) was measured by spectrophotometer. Statistics analysis was performed by IBM SPSS Statistics 28, through ANOVA Oneway, one sample t-test, Tukey HSD and Spearman Correlation tests. Results: The lowest surface roughness was obtained in ASAP polishing protocol (Sa = 9,50 ± 0,77 nm). The highest surface roughness was registered in SPD polishing protocol (Sa = 70,40 ± 2,99 nm) and it has statistically significant differences with SGC e ASAP polishing protocols (p < 0,05). Regarding to color stability, the highest color change was measured in ASAP protocol (ΔE = -3,54 ± 7,90). Conclusions: The SPD polishing protocol was the protocol with the highest significant roughness. No statistically significant differences were found for color change among the different polishing protocols.
Descrição
Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas Moniz
Palavras-chave
Estabilidade da cor Pigmentação Rugosidade de superfície Polimento