Fracture resistance of experimental glass and glass-ceramic resin composites

摘要

Experimental composites containing bioactive glass, glass-ceramic and bioactive low temperature fired inorganic fillers (SiO_2-CaO-P_2O_5-Na_2O) were synthesized by wet chemistry. Two chemically activated dimethacrylate matrix resins were used together with 0 or 30percent low molecular weight hydrophilic monomer. Composites contained 70 or 65 (wtpercent) filler particles with and without silane treatment. Fracture toughness (K_(Ic)) (n=5) was performed on specimens following storage in either SBF or distilled water