Evaluación de la colonización bacteriana de la interfase implante-pilar en implantes de conexión interna: estudio piloto
Evaluation of bacterial colonization of the implant-abutment interface in implants with internal connection: pilot study
DOI:
https://doi.org/10.15446/aoc.v8n2.73877Keywords:
Carga bacteriana, implantes dentales, interfase implante-pilar, titanio, microbiología, CAD/CAM (es)Bacterial load, dental implants, Dental Implant-Abutment Interface, titanium, microbiology, CAD-CAM (en)
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Introducción: La interfase implante-pilar da lugar a la formación de un espacio, cuyo tamaño varía de acuerdo a variables como las tolerancias de maquinado, los micro-movimientos, el tipo de fabricación de los aditamentos protésicos y el material de los mismos. Este espacio, en cercanía a los tejidos peri-implantares, es una oportunidad para la movilización de microorganismos de forma bidireccional, desencadenando eventualmente respuesta tisular. Objetivo: comparar la filtración de Echerichia coli (E. coli) en la interfase de implantes de conexión interna con pilares prefabricados y personalizados. Materiales y métodos: nueve implantes (Osseotite® Tapered Certain®, 3i Biomet) fueron divididos en tres grupos basados en el tipo de pilar utilizado. Grupo 1 pilares prefabricados Provide®, grupo 2 pilares personalizados Encode® Titanio, grupo 3 pilares personalizados Encode® Zirconia. Los pilares fueron conectados a los implantes y fueron ciclados según la norma ISO 14801:2007 (250.000 ciclos) en un dispositivo de carga dinámica. Fueron sumergidos en caldo infusión cerebro corazón (BHI) inoculado con E. coli. Se tomaron muestras y se midió la turbidez del medio. Se realizó test ANOVA para comparar el tamaño de la interfase implante-pilar. Resultados: se encontró que todas las muestras filtraron en diferentes proporciones. Conclusiones: todas las muestras mostraron filtración de E. coli.
Background: the implant-abutment interface leads to the formation of a space whose size varies according to different variables such as machining tolerances, micro-movements, the type of fabrication of prosthetic devices and the fabrication material. This space in close proximity to the peri-implant tissues is an opportunity for the colonization of microorganism bidirectionally, eventually triggering tissue response. Objective: to compare the filtration of Echerichia coli (E. coli) in the interface of implants of internal connection with prefabricated and customized abutments. Materials and methods: nine implants (Osseotite® Tapered Certain®, 3i Biomet) were divided into three groups based on the type of abutment used. Group 1 prefabricated abutment Provide®, Group 2 customized abutment Encode® Titanium, Group 3 customized abutment Encode® Zirconia. The implants were connected to the abutments and cycled according to ISO 14801:2007 norm (250,000 cycles) in a dynamic loading device. They were immersed in brain heart infusion (BHI) medium inoculated with E. coli. Samples were taken and the turbidity of the medium was measured. An ANOVA test was performed to compare the size of the implant-abutment interface. Results: All samples were found to be colonized in different proportions. Conclusions: All samples showed E. coli colonization.
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