Short- and long-term fluoride release from glass ionomers and other fluoride-containing filling materials in vitro
Short- and long-term fluoride release from glass ionomers and other fluoride-containing filling materials in vitro
- European Journal of Oral Science, 98(2), p.179-185, 1990 .
Test specinnens of seven different glass ionomer filling materials and ooe fissure sealant were exposed to running water for 2 yr. One amalgam and one composite, both containing fluoride, were included for comparison. The iluoride release from the specimens was measured periodically after storing the specimens for 24 h or 1 wk in .a sm.a!! amount of water. The iluoride release from the glass ionomers decreased with time and a constant level was reached for mos.t products during the 2-yr period. The release was increased by loM^ering the pH of the storage solution. The rekas.e from the glass ionomers was clearly greater than from the amalgam and the composite.
DENTAL MATERIALS
FLUORIDE RELEASE
GLASS IONOMERS.
Test specinnens of seven different glass ionomer filling materials and ooe fissure sealant were exposed to running water for 2 yr. One amalgam and one composite, both containing fluoride, were included for comparison. The iluoride release from the specimens was measured periodically after storing the specimens for 24 h or 1 wk in .a sm.a!! amount of water. The iluoride release from the glass ionomers decreased with time and a constant level was reached for mos.t products during the 2-yr period. The release was increased by loM^ering the pH of the storage solution. The rekas.e from the glass ionomers was clearly greater than from the amalgam and the composite.
DENTAL MATERIALS
FLUORIDE RELEASE
GLASS IONOMERS.