AutoresMiguel Beltrán-Guijarro, Esteban Pérez-Pevida, David Chávarri‐Prado, Alejandro Estrada-Martínez, Markel Diéguez-Pereira, Fernando Sánchez Lasheras, Aritza Brizuela‐Velasco
Por qué importa
Este análisis mediante elementos finitos explora cómo la altura de los pilares Ti-base afecta la distribución y magnitud de las cargas transferidas en sistemas de implantes dentales, así como la microdeformación ósea resultante. Se crearon modelos tridimensionales de premolares mandibulares con implantes, variando la altura de los pilares y la corona de zirconia. La aplicación de una carga estática simuló fuerzas oclusales. Los hallazgos indican una tendencia lineal directa entre el incremento de la altura del pilar Ti-base y el aumento del estrés y la microdeformación en los componentes protésicos y el sistema implante-hueso. Comprender estos efectos biomecánicos es crucial para optimizar el diseño protésico y la longevidad del implante, influyendo directamente en la planificación y ejecución de tratamientos rehabilitadores.
This study aims to analyse, using a finite element analysis, the effects of Ti-base abutment height on the distribution and magnitude of transferred load and the resulting bone microstrain in the bone-implant system. A three-dimensional bone model of the mandibular premolar section was created with an implant placed in a juxta-osseous position. Three prosthetic models were designed: a 1 mm-high titanium-base (Ti-base) abutment with an 8 mm-high cemented monolithic zirconia crown was designed for model A, a 2 mm-high Ti-base abutment with a 7 mm-high crown for model B, and a 3 mm-high abutment with a 6 mm-high crown for model C. A static load of 150 N was applied to the central fossa at a six-degree angle with respect to the axial axis of the implant to evaluate the magnitude and distribution of load transfer and microstrain. The results showed a trend towards a direct linear association between the increase in the height of the Ti-base abutments and the increase in the transferred stress and the resulting microstrain to both the prosthetic elements and the bone/implant system. An increase in transferred stress and deformation of all elements of the system, within physiological ranges, was observed as the size of the Ti-base abutment increased.
Beltrán-Guijarro M, Pérez-Pevida E, Chávarri‐Prado D, Estrada-Martínez A, Diéguez-Pereira M, Lasheras FS, et al. Biomechanical Effects of Ti-Base Abutment Height on the Dental Implant System: A Finite Element Analysis. Journal of Functional Biomaterials. 2024. doi:10.3390/jfb15040101
