Manufactura y Caracterización de un Biovidrio Sódico-Cálcico para Aplicaciones Clínicas

Abstract

Soda-lime glasses are characterized by their hardness, brittleness, transparency and high chemical resistance. Moreover, within a certain chemical composition range, these materials (in contact with the body) formed on their surfaces a bone-like apatite layer that induces the implant-tissue chemical bond. In this paper we synthesized a glass with the follow composition, SiO2(52.13%)-Na2O (23.33%)-CaO (22.61%) (wt %). The results obtained by thermal analysis (DTA and TG) showed good correspondence with the parameters (glass transition temperature (Tg) and melting temperature) obtained by hot stage microscopy. In addition, it was found that the material is a bioactive glass (bioglass), due to its sufarce was recovered by a bone-like apatite layer after soaking for different times in simulated body fluid (SBF). This layer had same morphology to those apatite structures reported in the literature formed at similar conditions