Palabras clave
Resinas compuestas; Color; Empaste dental; Materiales dentales; Odontología; Agentes colorantes alimentarios.
Cómo citar
Resumen
El objetivo de este estudio fue investigar los efectos de las bebidas ácidas en la decoloración de resinas compuestas tipo Bulk con diferentes viscosidades. Se prepararon 144 muestras en forma de disco (8mm de diámetro x 2mm de grosor) a partir de cuatro resinas compuestas diferentes que incluyen un nanohíbrido (Filtek Ultimate), dos de pasta condensables tipo Bulk (Filtek Bulk Fill, Tetric N Ceram Bulk Fill) y una fluida (Tetric N Flow Bulk Fill). Las muestras de cada grupo se dividieron en 3 subgrupos y se sumergieron en agua destilada, jugo de naranja y Coca-Cola (n=12). La diferencia de color (∆E) se midió utilizando el CIELab y un espectrofotómetro compacto (VITA Easyshade) al inicio y después de 30 días de inmersión. Los datos se analizaron mediante ANOVA bidireccional y pruebas post-hoc HSD de Tukey (P<0,05). El ANOVA bidireccional reveló que tanto el tipo de material como la solución de tinción influyeron significativamente en los valores de ∆E (P<0,001). La inmersión en jugo de naranja resultó en una decoloración mayor y significativa con el tiempo en comparación con el agua destilada y la Coca-Cola (P<0.05). Las resinas Tetric N Ceram (∆E=7.0) y Tetric N Flow (∆E=7.7) mostraron los valores más altos de cambio de color después de 30 días de inmersión en jugo de naranja. En este estudio se observó una decoloración por encima del umbral clínicamente aceptable (∆E>2,7) para todos los materiales resinosos. Se puede especular que el jugo de naranja tiene un efecto más negativo sobre la estabilidad del color en comparación con la Coca-Cola. Además, la resina fluida fue más propensa a la decoloración que las resinas condensables.
Citas
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