Estabilidad del color y rugosidad superficial de resinas compuestas estéticas tras un cepillado dental simulado con dentífricos blanqueadores
DOI:
https://doi.org/10.15517/ze5ncd74Palabras clave:
Pigmentación por café; Estabilidad del color; Resinas compuestas; Rugosidad superficial; Dentífrico blanqueador; Cepillado dental.Resumen
Este estudio in vitro tuvo como objetivo evaluar los efectos de dos dentífricos blanqueadores con diferentes mecanismos de acción y un dentífrico no blanqueador de baja abrasividad sobre la estabilidad del color y la rugosidad superficial de tres resinas compuestas estéticas, posterior a la pigmentación con café. Se prepararon noventa muestrasen forma de disco (2 mm×6 mm) a partir de tres resinas compuestas: Filtek Ultimate, Estelite Sigma Quick y Neo Spectra ST Effects (n=30 cada una). Tras el pulido, las muestras se almacenaron por 24 horas a 37 °C. Para la pigmentación, las muestras se sumergieron en una solución de café por seis días consecutivos. La solución se renovó cada 24 horas, simulando seis meses de consumo de café. El color y la rugosidad superficial se midieron al inicio y después del proceso de pigmentación. Posteriormente, cada grupo se dividió en tres subgrupos (n=10), se sometió a cepillado en un simulador con uno de tres dentífricos. Sensation Whitening—durante un total de 30 min. bajo una carga de 200 g. Se realizaron mediciones finales, se calcularon los cambios de color (∆E00) y de rugosidad superficial (∆Ra). Los datos se analizaron mediante ANOVA y la prueba de Tukey HSD (p<0,05). El tipo de resina influyó en el cambio de color tras la pigmentación (p<0,05), Estelite Sigma Quick mostró los valores más altos. El tipo de dentífrico afectó significativamente el cambio de color (p<0,05), Opalescence Whitening produjo mayor efecto blanqueador en algunos grupos de resina compuesta. Todos los grupos experimentales presentaron valores de ∆E00 superiores al umbral de aceptabilidad clínica (∆E00>1,8). La rugosidad superficial aumentó significativamente en algunos grupos después del cepillado; sin embargo, no se observaron diferencias significativas entre los tipos de dentífrico (p>0,05).
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Derechos de autor 2026 Ecehan Kaplan, Ayşe Dündar, Çağatay Barutçugil.

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