AutoresDavid Chávarri‐Prado, Aritza Brizuela‐Velasco, Markel Diéguez-Pereira, Esteban Pérez-Pevida, Antonio Jiménez-Garrudo, Iratxe Viteri-Agustín, Alejandro Estrada-Martínez, Oier Montalbán-Vadillo
Este estudio evalúa cómo el diseño del implante y la presencia de hueso cortical afectan la estabilidad primaria de los implantes dentales. Se compararon dos diseños de implantes de Klockner (Essential Cone y Vega) en bloques de poliuretano, algunos con capa cortical y otros sin ella. La estabilidad se midió mediante el torque de inserción y el análisis de frecuencia de resonancia (RFA) con dos dispositivos distintos (Penguin RFA y Osstell IDX). Los resultados indican que el hueso cortical mejora significativamente la estabilidad primaria. Asimismo, el diseño del implante y la presencia de cerclaje coronal influyen en esta estabilidad. Es relevante para la práctica clínica el conocimiento de que las características del lecho óseo y el diseño del implante son determinantes en la estabilidad inicial, un factor clave para el éxito a largo plazo de las rehabilitaciones implanto-soportadas. No se encontraron diferencias significativas entre los dos dispositivos de RFA utilizados.
Background: This study aimed to evaluate the effect of the implant design and the presence of cortical bone in the primary stability, as well as analyze the differences between the stability measurements obtained by two different resonance frequency analysis (RFA) devices. Material and Methods: A total of 80 Klockner implants of two different models [40 Essential Cone implants (group A) and 40 Vega implants (group B)] were used. The implants were placed in two polyurethane blocks that simulated the mechanical properties of the maxillary bone. One block featured a layer of cortical bone that was absent from the other block. The primary stability of all implants was measured by insertion torque and RFA using two different devices: Penguin RFA and Osstell IDX. Results: Primary stability was superior in the cortical bone in both torque and RFA. In the block containing cortical bone, group A implants obtained a greater insertion torque than did group B. The insertion torque was lesser in the bone lacking cortex. Regarding the ISQ of the implants, group A presented higher values in the block with cortical bone, but the values were lower in the block without cortical bone. There were no significant differences between the values obtained from the Osstell IDX and Penguin RFA. Conclusions: The presence of cortical bone positively influences the primary stability of dental implants. The design of the implant also has a statistically significant influence on implant primary stability, although the impact depends on whether there is coronal cerclage or not. There were no statistically significant differences in the implant stability measurements obtained by two different devices.
Chávarri‐Prado D, Brizuela‐Velasco A, Diéguez-Pereira M, Pérez-Pevida E, Jiménez-Garrudo A, Viteri-Agustín I, et al. Influence of cortical bone and implant design in the primary stability of dental implants measured by two different devices of resonance frequency analysis: An in vitro study. Journal of Clinical and Experimental Dentistry. 2020. doi:10.4317/jced.56014
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