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Detecting the Water-soluble Chloride Distribution of Cement Paste in a High-precision Way
Published on: November 21, 2017
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Cemento de silicato de calcio hidráulico de fijación rápida para la cementación de la corona
Atefeh Nemati Karimooy1, Bahram Ranjkesh2, Dirk Leonhardt3
1Section for Oral Ecology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark.
Resumen
El cemento hidráulico de silicato de calcio de fijación rápida (CSC de fijación rápida) muestra un espesor de película, resistencia a la tracción diametral y resistencia a la retención de la corona comparables a los cementos de luting convencionales, lo que indica un potencial para la cementación de la corona.
Área de la Ciencia:
- Materiales dentales Ciencias de la ciencia.
- Ingeniería de Biomateriales Ingeniería de Biomateriales
- Odontología Restaurativa Odontología Restaurativa.
Sus antecedentes:
- Los cementos de lución convencionales se enfrentan a limitaciones en el rendimiento clínico.
- Los cementos hidráulicos de silicato de calcio (CSC) de rápida fijación ofrecen avances potenciales en los procedimientos de restauración dental.
Objetivo del estudio:
- Para evaluar el grosor de la película, la resistencia a la tracción diametral (DTS) y la resistencia a la retención de la corona de un CSC hidráulico de ajuste rápido.
- Para comparar el CSC de ajuste rápido con el cemento de fosfato de zinc convencional y el cemento de ionómero de vidrio para aplicaciones de lutado.
Principales métodos:
- El grosor de la película se midió según la norma ISO 9917-1:2007.
- La resistencia a la tracción diametral (DTS) se evaluó utilizando muestras cilíndricas después de 7 días de almacenamiento húmedo.
- La fuerza de retención de la corona se determinó mediante pruebas de extracción de coronas metálicas cementadas en molares extraídos después de 10.000 ciclos térmicos.
Principales resultados:
- Todos los cementos probados, incluido el CSC de ajuste rápido, exhibieron espesores de película por debajo del umbral de 25 μm.
- El CSC de ajuste rápido demostró DTS comparable a los cementos de ionómero de vidrio y fosfato de zinc.
- No se observaron diferencias significativas en la resistencia a la retención de la corona entre los tres tipos de cemento, predominando las fallas mixtas.
Conclusiones:
- Fast-set CSC posee un espesor de película aceptable y comparable DTS y la fuerza de retención de la corona a los cementos de luting convencionales.
- Los resultados sugieren un potencial clínico prometedor para el CSC de ajuste rápido en la cementación de la corona.
- Se requiere más investigación para explorar completamente la utilidad clínica de la CCS de ajuste rápido.
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