Efecto de la aplicación previa o la adición de desensibilizantes a los geles de peróxido de hidrógeno sobre el esmalte dental blanqueado

Autores/as

DOI:

https://doi.org/10.33448/rsd-v10i7.16467

Palabras clave:

Peróxido de hidrógeno; Blanqueamiento dental; Esmalte dental.

Resumen

Este estudio in vitro evaluó el efecto de los geles de peróxido de hidrógeno al 35% (35PH) con diferentes agentes desensibilizantes sobre el color, la microdureza y la rugosidad del esmalte blanqueado. Se obtuvieron cuarenta muestras de esmalte-dentina (6x6x2 mm2) de veinte molares humanos. Después de la medición del color con un espectrofotómetro, las muestras se distribuyeron al azar en cuatro grupos (n= 10): 35HPw-35HP sin agente desensibilizante; 35HPCa-35HP con calcio; 35HPK-35HP con 0,5% de nitrato de potasio; 35HPTFa- 35HPw + aplicación tópica de nitrato de potasio al 5% y fluoruro de sodio al 2% (TFa). Las muestras se evaluaron en cuanto al color (∆Eab* y ∆E00), microdureza Vickers (VHN) y rugosidad superficial y volumétrica (Ra y Sa, µm) utilizando un perfilómetro 3D sin contacto antes y 1 semana después del blanqueamiento. Los datos fueron analizados por ANOVA y pruebas de Tukey (p <0.05). Ambos grupos de tratamiento promovieron un efecto blanqueador significativo y no hubo diferencia entre ellos para ninguno de los parámetros de color evaluados. Todos los grupos redujeron significativamente el VHN, pero el 35PHK mostró una reducción significativamente mayor que los otros grupos. 35PHCa y 35PH+TFa no evitaron el aumento de Ra y Sa. Se concluyó que los geles de 35PH con diferentes agentes desensibilizantes no afectaron la eficacia blanqueadora. Sin embargo, todos los tratamientos disminuyeron la microdureza, la adición de calcio al gel de 35PH y la aplicación de TFa antes del blanqueamiento no revirtieron la rugosidad del esmalte en condiciones in vitro.

Citas

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Publicado

18/06/2021

Cómo citar

MACÊDO, V. M. A.; SANTOS, M. E.; DUARTE, R. M. .; MEIRELES, S. S. . Efecto de la aplicación previa o la adición de desensibilizantes a los geles de peróxido de hidrógeno sobre el esmalte dental blanqueado. Research, Society and Development, [S. l.], v. 10, n. 7, p. e18610716467, 2021. DOI: 10.33448/rsd-v10i7.16467. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/16467. Acesso em: 17 jul. 2024.

Número

Sección

Ciencias de la salud