Evaluación de los cambios superficiales en vitrocerámicas sometidas a envejecimiento artificial mediante cepillado simulado

Autores/as

DOI:

https://doi.org/10.33448/rsd-v11i9.31081

Palabras clave:

Vitrocerámicas; Cepillado simulado; Envejecimiento artificial.

Resumen

El objetivo de este estudio fue evaluar los cambios superficiales de vitrocerámicas, sometidas a envejecimiento artificial mediante cepillado simulado con diferentes dentífricos, utilizando una máquina cepilladora diseñada por los autores. Se realizaron veinticuatro ejemplares en forma de incisivo central superior derecho, en color A1 y maquillados en color A3; divididos en 4 grupos con n =6. Las pruebas mecánicas se realizaron con una máquina cepilladora a una temperatura ambiente de 37ºC, con una frecuencia de 250 golpes por minuto, bajo una presión de cepillo de 250 mg y goteo simultáneo de la solución dentífrica. Los tiempos de prueba se dividieron en: 0; 25.000; 50.000; 75.000; 100.000; 125.000 y 150.000 golpes y los parámetros analizados por un rugosímetro. Los valores de rugosidad superficial (SR) obtenidos se sometieron a la prueba de Kolmogorov-Smirnov (p=0,321) para verificar la normalidad de la distribución de los datos y, posteriormente, a la prueba de Levene (p=0,076). Los resultados obtenidos mostraron que el tiempo de envejecimiento no influyó en la rugosidad superficial de las vitrocerámicas, existiendo diferencias en la rugosidad superficial en algunas pastas dentales. Así, se puede concluir que las vitrocerámicas fueron susceptibles a la pérdida de masa, pero resistentes a la acción de los dentífricos. Los dentífricos con características antiplaca y antisarro pueden cambiar la superficie con el tiempo.

Citas

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Publicado

03/07/2022

Cómo citar

FERNANDES, D. R.; BAEDER, F. M.; SILVA, D. F. .; ALBUQUERQUE, A. C. L. de .; SANTOS, D. C. L. dos; DAVID, A. F.; FARIAS, F. A. R. .; YASUNAKA, lson M.; FELTRIN, P. P.; ZANETTI, R. V. Evaluación de los cambios superficiales en vitrocerámicas sometidas a envejecimiento artificial mediante cepillado simulado. Research, Society and Development, [S. l.], v. 11, n. 9, p. e9311931081, 2022. DOI: 10.33448/rsd-v11i9.31081. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/31081. Acesso em: 17 jul. 2024.

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Sección

Ciencias de la salud