Comparison of the Chemical Reactivity and Bioactivity of Two Bioactive Glasses 47S6 and 48S4

Hassane Oudadesse; M. Mami; R. Dorbez-Sridi; P. Pellen-Mussi; F. Perez; S. Jeanne; D. Chauvel-Lebret; G. Cathelineau

doi:10.4028/www.scientific.net/KEM.396-398.107

Paper Titles

The Surface Property of Hydroxyapatite: Sensing with Quartz Crystal Microbalance
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A Bioactive Glass/Dental Porcelain System by the Sol Gel Route: Fabrication and Characterization
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Sol-Gel Hydroxyapatite-CaO Composites: Fabrication and Bioactivity Studies
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Bone-Like Apatite-Forming Ability of Ca₃(PO₄)₂-CaMg(SiO₃)₂ Ceramics in Simulated Body Fluid
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Comparison of the Chemical Reactivity and Bioactivity of Two Bioactive Glasses 47S6 and 48S4
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Dental Ceramics Modified by Ternary Glass-Ceramic Coatings: Characterization and In Vitro Bioactivity Study
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Factors Affecting In Vitro Bioactivity of Glasses
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Investigation of the Bioactivity of Dental Ceramic / Bioactive Glass Composites Prepared by the Sol Gel Route
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Macrophage Induced Effect of Particulate Silica on Rat Mesenchymal Stem Cells In Vitro
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 396-398Comparison of the Chemical Reactivity and...

Comparison of the Chemical Reactivity and Bioactivity of Two Bioactive Glasses 47S6 and 48S4

Abstract:

This work is focused on the bioactive glasses obtained by melting and rapid quenching. Two glasses with mineral composition of: 47% SiO2 - 26% CaO - 21% Na2O - 6% P2O5 and 48% SiO2 - 30% CaO - 18% Na2O - 4% P2O5 were investigated. The aim of this study was to establish the kinetics of HCAp layer formation “in vitro” and to control the adhesion and proliferation cells of the two glasses in contact with osseous cells. Obtained results permit to evaluate their chemical reactivity and their bioactivity after immersion in the SBF-K9. Ionic exchanges between biomaterials and SBF liquid during the “in vitro” experiments highlight the differences of the chemical reactivity and bioactivity of 47S6 and 48S4. The structural basis for the effect of cristallinity on the rates of HCA formation in vitro in favour of glasses was also established. The melt derived 47S6 and 48S4 glasses offer to surgeons new compositions with different bioactivity kinetic that bioglassÒ 45S6 and can be adaptable in some other bony pathology.