A COMPARISON OF THE DIAMETRAL TENSILE-STRENGTH, THE FLEXURAL STRENGTH, AND THE COMPRESSIVE STRENGTH OF 2 NEW CORE MATERIALS TO A SILVER ALLOY-REINFORCED GLASS-IONOMER MATERIAL

This study compared three mechanical properties of two recently introd uced core materials, a light-activated glass ionomer cement (VariGlass VLC) and a fluoride-release dual cure composite resin (FluoroCore), w ith those of a conventional silver-reinforced glass-ionomer cement (Mi racle Mix). Seventy-two samples (eight per product for each property) were prepared for testing diametral tensile strength, flexural strengt h, and compressive strength. The specimens were cured, stored for 24 h ours at 37 degrees C in 100% humidity, and tested with the use of an I nstron universal testing machine. The results of this study indicate t hat the diametral tensile strength, flexural strength, and compressive strength of the FluoroCore and VariGlass VLC materials were significa ntly higher than those of the conventional Miracle Mix. The values obt ained with FluoroCore material were consistently higher than those obt ained with VariGlass VLC material.