The bioglass as calcium phosphate-boron carbide for osseous filling
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2004-12-01
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Zurita Da Silva, J. C.
Novaki, L.
Tsai, H. I.
Costa, E.
Pereira, L. T.P.
Andrade, A. V.C.
Borges, C. P.F.
Antunes, S. R.M.
Marques, M. B.
Bressiani, J. C.
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A bioglass with composition 12%Na2O-28%CaO-50%SiO 2-10%P2O5, combined with boron carbide(B 4C), was prepared to form foam-glass. The bioglass were prepared from pure oxides and fused in an electric furnace, at 1450°C for 3h, and melt was quenched in water, obtaining a non-crystalline material. The bioglass and bioglass+B4C, were characterize by X-ray fluorescence analysis showing the stoichiometric composition in a bioactive region of phase diagrams. The bioglass and bioglass+B4C showed the lower density in foam-glass form, and had the bioactivity characteristic in a simulate body fluid (SBF) and blood suspensions in-vitro assays.
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Transactions - 7th World Biomaterials Congress, p. 1898-.