Examinando por Materia "Diferenciación cromática"

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Acceso abierto
Influence of polishing on dental composite resins on chromatic differentiation compared to a pigmenting drink. Lima 2021 in vitro study
(Universidad Privada Norbert Wiener, 2022-08-26) Sencebe Marcaval, Paola Gina; Garavito Chang, Enna Lucila
Objective: To compare the influence of polishing on dental composite resins in color differentiation when exposed to a staining beverage. Methodology: Two dental resins used for anterior restorations (Z350XT and Tetric N-Ceram) were employed. These resins were molded into discs with a diameter of 10 mm and a thickness of 2 mm using an acrylic mold, adding layers of 2 mm resin until the desired dimensions were achieved. Additionally, three polishing systems (Sof-Lex discs, rubber cups, and Astrobrush) were used to generate a smooth and polished finish on the resin discs. The initial color of these discs was identified using a digital colorimeter (Vita Easyshade V), and the data were recorded in the data collection sheet. Subsequently, the resin discs were immersed in Coca-Cola for 15 days, after which they were removed from the containers, rinsed, and dried. The color was measured again using the digital colorimeter. The data were tabulated and processed using statistical analysis with Student's t-test and ANOVA. Results: The influence of polishing on Filtek Z350XT resin was 4.6 when polished with Sof-Lex discs, 7 with rubber cups, and Astrobrush. On the other hand, the influence of polishing on Tetric N-Ceram resin was 5.2 with Sof-Lex discs, 5.6 with rubber cups, and 6.4 with Astrobrush. Conclusion: The least influence of polishing was observed with the rubber cup and Astrobrush on Filtek Z350XT composite resin, while the greatest influence of polishing was observed with the Sof-Lex disc on Filtek Z350XT composite resin.