Short- and long-term fluoride release from glass ionomers and other fluoride-containing filling materials in vitro |
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Authors: | LENNART FORSTEN |
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Institution: | Institute of Dentistry, University of Turku, Turku, Finland |
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Abstract: | Abstract – Test specimens of seven different glass ionomer filling materials and one fissure sealant were exposed to running water for 2 yr. One amalgam and one composite, both containing fluoride, were included for comparison. The fluoride release from the specimens was measured periodically after storing the specimens for 24 h or 1 wk in a small amount of water. The fluoride release From the glass ionomers decreased with time and a constant level was reached for most products during the 2-yr period. The release was increased by lowering the pH of the storage solution. The release from the glass ionomers was clearly greater than from the amalgam and the composite. |
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Keywords: | dental materials fluoride release glass ionomers |
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