Resistencia a la fractura de pilares de prótesis fija restaurados con muñones directos e indirectos

Autores/as

DOI:

https://doi.org/10.33448/rsd-v11i8.30218

Palabras clave:

Prótesis dental; Técnica de perno muñón; Odontología; Diseño de prótesis; Falla de prótesis.

Resumen

El objetivo de este estudio fue evaluar la resistencia a la fractura de prótesis parciales fijas de tres elementos restauradas con postes de fibra de vidrio (GFP) y muñones de metal colado (CPC). En este trabajo se dividieron 60 incisivos inferiores bovinos en dos grupos (n = 30) según el tipo de retenedor: 1) núcleo de resina compuesta reforzado con GFP; y II) CPC (Cu-Al). Cada par de raíces consistió en una muestra, simulando una prótesis parcial fija de tres elementos. Las estructuras de las prótesis parciales fijas de tres elementos fueron fabricadas con aleación de Ni-Cr. Se utilizó un cemento de resina dual convencional (RelyX ARC - 3M Espe, USA) para todos los procedimientos de cementación. Las muestras se sometieron a una carga de compresión en un orificio en la región de contacto oclusal del póntico hasta su colapso o fractura. La distribución normal de los datos se verificó mediante la prueba de normalidad de D'Agostino & Pearson. Se utilizó la prueba t no pareada para el análisis de datos (α = 5%). Los resultados mostraron que los dientes pilares de prótesis parcial fija de tres elementos restaurados con núcleos de resina compuesta retenidos con GFP mostraron una mayor resistencia a la fractura en comparación con los restaurados con CPC (p = 0,0009). En conclusión, la resistencia a la fractura de una prótesis parcial fija de tres elementos restaurada con un núcleo de resina compuesta reforzada con postes de fibra de vidrio fue superior a la restaurada con postes y retenedores de muñones.

Citas

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Publicado

19/06/2022

Cómo citar

MATOS, L. M. R. de .; SILVA, M. L. .; OLIVEIRA, L. P.; CORDEIRO, T. O.; SILVA, W. A. B. e .; SERAIDARIAN , P. I. Resistencia a la fractura de pilares de prótesis fija restaurados con muñones directos e indirectos. Research, Society and Development, [S. l.], v. 11, n. 8, p. e28211830218, 2022. DOI: 10.33448/rsd-v11i8.30218. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/30218. Acesso em: 30 jun. 2024.

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Sección

Ciencias de la salud