Mineralization of Titanium Surfaces: Biomimetic Implants.
Por:
Gil J, Manero JM, Rupérez E, Velasco-Ortega E, Jiménez-Guerra A, Ortiz-García I and Monsalve-Guil L
Publicada:
27 may 2021
Ahead of Print:
27 may 2021
Resumen:
The surface modification by the formation of apatitic compounds, such as hydroxyapatite, improves biological fixation implants at an early stage after implantation. The structure, which is identical to mineral content of human bone, has the potential to be osteoinductive and/or osteoconductive materials. These calcium phosphates provoke the action of the cell signals that interact with the surface after implantation in order to quickly regenerate bone in contact with dental implants with mineral coating. A new generation of calcium phosphate coatings applied on the titanium surfaces of dental implants using laser, plasma-sprayed, laser-ablation, or electrochemical deposition processes produces that response. However, these modifications produce failures and bad responses in long-term behavior. Calcium phosphates films result in heterogeneous degradation due to the lack of crystallinity of the phosphates with a fast dissolution; conversely, the film presents cracks, which produce fractures in the coating. New thermochemical treatments have been developed to obtain biomimetic surfaces with calcium phosphate compounds that overcome the aforementioned problems. Among them, the chemical modification using biomineralization treatments has been extended to other materials, including composites, bioceramics, biopolymers, peptides, organic molecules, and other metallic materials, showing the potential for growing a calcium phosphate layer under biomimetic conditions.
Filiaciones:
Gil J:
Bioengineering Institute of Technology, International University of Catalonia, 08195-Sant Cugat del Vallés, 08017 Barcelona, Spain
Manero JM:
Department of Materials Science and Metallurgical Engineering, Biomaterials, Biomechanics and Tissue Engineering Group (BBT), Polytechnic University of Catalonia (UPC), 08019 Barcelona, Spain
Barcelona Research Center in Multiscale Science and Engineering, Polytechnic University of Catalonia (UPC), 08019 Barcelona, Spain
Rupérez E:
Department of Materials Science and Metallurgical Engineering, Biomaterials, Biomechanics and Tissue Engineering Group (BBT), Polytechnic University of Catalonia (UPC), 08019 Barcelona, Spain
Barcelona Research Center in Multiscale Science and Engineering, Polytechnic University of Catalonia (UPC), 08019 Barcelona, Spain
Velasco-Ortega E:
Department of Stomatology, Faculty of Dentistry, University of Seville, 41009 Sevilla, Spain
Jiménez-Guerra A:
Department of Stomatology, Faculty of Dentistry, University of Seville, 41009 Sevilla, Spain
Ortiz-García I:
Department of Stomatology, Faculty of Dentistry, University of Seville, 41009 Sevilla, Spain
Monsalve-Guil L:
Department of Stomatology, Faculty of Dentistry, University of Seville, 41009 Sevilla, Spain
Open Access
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