Abstract
Ceramic materials are increasingly used in biomedical applications due to their ability to produce complete osseointegration in the human body. This is possible because, in contact with physiological systems, these materials undergo certain transformations that facilitate the formation of new bone around the ceramic implant. In this research is intended the bioactivity study of a material of the P2O5-CaO-SiO2-MgO system. For this reason the preparation, by zonal fusion by laser, the microstructural characterization and the study of the in vitro response of a material, both vitreous and crystalline, are proposed.Starting from the powdered material we have generated ceramic rods by cold isostatic pressing. After the sintering process of the rods at 1200˚C, we have achieved dense bars by laser floating zone technique (LFZ). An exploration of experimental conditions was performed, being able to obtain both, vitreous and crystalline structure. Samples obtained are bioactive in contact with simulated body fluid because they are able of generate an hydroxyapatite layer on the surface of the material whose function is to promote the union of the implant to the bone and the regeneration of damaged tissue.
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