SrO–Al2O3–B2O3–SiO2-Based Glass Fillers for Dental Filling Composites.

A new glass-filler for dental composites has been developed based on glass in the system SrO–Al2O3–B2O3–SiO2. This filler meets contemporary requirements for filling materials and is characterized by high chemical resistant to water, acids and alkalis (Class I), high visible-range transparency (> 80%), and CLTE-compatibility with the polymer matrix. The melting temperature is acceptable, and crystallization is not a proclivity. It is shown [demonstrated that the new glass filler effects high-level medical-biological, operational, and functional properties of the dental composite based on it, and competitiveness with respect to the popular foreign-made analog materials. [ABSTRACT FROM AUTHOR]