Resumen

CHAVEZ MARTINEZ, Noemy Celeste et al. Graphene oxide nano coating on titanium prosthetic abutmente. Mundo nano [online]. 2025, vol.18, n.34, e69827.  Epub 25-Feb-2025. ISSN 2448-5691.  https://doi.org/10.22201/ceiich.24485691e.2025.34.69827.

To achieve greater survival of dental implants, a solid integration of the soft tissues in the transmucosal region with the prosthetic abutments is important. The objective of the study was to evaluate whether titanium abutment surfaces coated with graphene oxide improved cell adhesion. It has been shown that graphene oxide promotes the integration and stability of the cells that make up peri-implant soft tissues, increasing the biocompatibility, cell adhesion and antibacterial properties of titanium. In this study, the surfaces of anodized titanium pillars from the Nobel Biocare company were coated by immersion in a suspension of graphene oxide with water; they were subsequently placed in a muffle at 180 °C for 2 hours to fix and dry the coating. The graphene oxide film was characterized by scanning electron microscopy, X-ray scattering spectroscopy (EDS), and elemental mapping. Finally, anodized titanium prosthetic abutments with or without graphene oxide coating were evaluated by adhesion tests. Scanning electron microscopy allowed us to observe the layers of graphene oxide deposited on the surface of the pillar, mapping verified the presence of carbon on the entire surface and EDS the presence of carbon and titanium. Biological assays demonstrated a significant increase in cell adhesion on graphene oxide-coated titanium pillars compared to their uncoated counterparts. These results allow us to conclude that the surfaces of the anodized titanium pillars were successfully coated with graphene oxide and that this coating had a favorable influence on cell adhesion.

Palabras llave : dental implant abutment; graphene oxide; cell adhesion; anodized titanium.

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