Influencia del tratamiento superficial en la resistencia al corte de Katana Ultra Zirconia translúcida multicapa

Autores/as

DOI:

https://doi.org/10.33448/rsd-v11i4.27157

Palabras clave:

CAD-CAM; Cerámicas; Coronas.

Resumen

El objetivo de este trabajo fue evaluar la resistencia al corte de muestras translúcidas y multicapas de Katana Ultra Zirconia (UTML) bajo la influencia de ácido fluorhídrico al 10% combinado con el protocolo de tratamiento superficial actual: aire, primer que contiene la molécula 10-MDP y finalmente el cemento mismo. Las muestras de Zr Katana tipo UTML se mecanizaron en tamaños de unidad de medida de 5x5x10, se sujetaron y se dividieron en dos grupos. En G1 (control), las muestras fueron preparadas superficialmente mediante chorreado de óxido de aluminio de 27um a una presión de 4 bares, aplicación de una imprimación de Zr conteniendo 10-MDP y finalmente el cemento Panávia V5. En G2 se añadió el uso de ácido fluorhídrico al 10% después del granallado y antes de aplicar la imprimación. Los especímenes fueron sometidos a ensayos mecánicos de resistencia al corte (RC) en una máquina de ensayo universal EMIC DL2000 (EMIC, São Paulo, Brasil), análisis superficial con microscopía electrónica de barrido (SEM) (Sputter Coaster Emitech, K450) y rugosidad superficial (RS). Los datos obtenidos fueron analizados estadísticamente y mostraron que las probetas de Zr que se sometieron a grabado ácido fueron un 41% más altas en relación a la fuerza de unión (0,031). La prueba t de Student mostró que las muestras que se sometieron a grabado ácido eran significativamente más ásperas en comparación con las muestras sin grabado (0,045). El análisis microscópico mostró que las muestras sometidas a la acción del ácido presentaban alteración superficial. Se concluye que el grupo que sufrió la acción del ácido fluorhídrico presentó mejor comportamiento adhesivo.

Citas

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Publicado

10/03/2022

Cómo citar

MASSOLA FILHO, F. F. .; FRANCO, A. G. .; CARVALHO, G. A. P. de .; DIAS, S. C. .; RAMOS, E. V. .; PEREZ, F. .; MECCA JUNIOR, S. .; MARTINS, C. M. .; VILELA, S. A. .; FRANCO, A. B. G. . Influencia del tratamiento superficial en la resistencia al corte de Katana Ultra Zirconia translúcida multicapa. Research, Society and Development, [S. l.], v. 11, n. 4, p. e4211427157, 2022. DOI: 10.33448/rsd-v11i4.27157. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/27157. Acesso em: 17 jul. 2024.

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Sección

Ciencias de la salud