Grado de conversión y fuerza cohesiva de cementos de resina dual convencionales y autoadhesivos a través de diferentes formas de activación

Autores/as

DOI:

https://doi.org/10.33448/rsd-v10i9.17850

Palabras clave:

Cementos de Resina; Polimerización; Propiedades físicas.

Resumen

El objetivo de este estudio fue evaluar el grado de conversión (GC) y la resistencia a la tracción cohesiva (RC) de dos cementos de resina dual convencionales y un cemento de resina autoadhesivo utilizando diferentes formas de activación. Se polimerizaron dos cementos de resina convencionales (Variolink II y RelyX ARC) y un cemento de resina autoadhesivo bajo tres formas de activación diferentes denominadas Químicamente Activadas (QA), Fotoactivadas con Interposición de un disco de resina (FI) y Fotoactivadas (F). La GC se evaluó utilizando espectroscopia infrarroja por transformada de Fourier - FTIR (Spectrum 100). En la prueba RC, las muestras se probaron para fracturar en una máquina de prueba universal (Instron 4411). Los valores medios obtenidos en las pruebas GC y RC se evaluaron mediante análisis de varianza de dos factores (ANOVA) (cemento y activación) y prueba de Tukey (p≤0.05). Independientemente del modo de activación, RelyX ARC obtuvo los valores GC más altos y RelyX U200 los valores más bajos y los valores intermedios Variolink II. El grupo F siempre obtuvo valores más altos que el grupo QA para GC y RC. Entre los cementos de resina, independientemente del modo de activación, no hubo diferencias en los valores de RC. El modo de activación química de los cementos de resina dual condujo a valores de GC y RC más bajos. El cemento RelyX ARC tuvo los valores más altos de GC y el cemento RelyX U200 los valores más bajos, sin embargo, en relación al RC, no hubo diferencias.

Citas

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Publicado

24/07/2021

Cómo citar

GORDILHO, A. C.; SWERTS, D. M. O. .; MIRANDA, M. E. .; BOARO, L. C. .; BRANDT, W. C. . Grado de conversión y fuerza cohesiva de cementos de resina dual convencionales y autoadhesivos a través de diferentes formas de activación. Research, Society and Development, [S. l.], v. 10, n. 9, p. e20910917850, 2021. DOI: 10.33448/rsd-v10i9.17850. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/17850. Acesso em: 22 nov. 2024.

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Ciencias de la salud