Fluoride release from glass-ionomer cements, compomers and resin composites.
The short and long-term fluoride release of 16 products (seven conventional glass-ionomers, five light-activated glass-ionomers, two polyacid-modified resin composites and two resin composites) commercialized as fluoride-releasing materials were measured. A potential link between the material type and its level of fluoride release was researched. The fluoride release was evaluated after different time intervals. Initial fluoride release from all materials was highest during the first 24 h and decreased sharply over the first week. Some groups of materials appeared to be significantly different after, respectively, 7 and 91 days. However, it was impossible to correlate the fluoride release of the materials by their type (conventional or resin-modified glass-ionomers, polyacid-modified resin composite and resin composite) except if we compared the products from the same manufacturer. The link between fluoride release and an acid-base reaction seems to be confirmed. The glass-ionomer composition (glass particles and polyacid's type, powder/liquid ratio) should have more influence on fluoride release than material type.
Vermeersch
G
G
Department of Operative Dentistry, Dental School, Université Catholique de Louvain, Brussels, Belgium. leloup@patd.ucl.ac.be
Leloup
G
G
Vreven
J
J
D000143:Acids / Q000737:chemistry; D000180:Acrylic Resins / Q000737:chemistry; D000468:Alkalies / Q000737:chemistry; D000704:Analysis of Variance; D002327:Cariostatic Agents / Q000737:chemistry*; D020770:Compomers / Q000737:chemistry*; D003188:Composite Resins / Q000737:chemistry*; D005459:Fluorides / Q000737:chemistry*; D005898:Glass / Q000737:chemistry; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006801:Humans; D008298:Maleates / Q000737:chemistry; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry*; D012117:Resins, Synthetic / Q000737:chemistry; D017640:Silicates / Q000737:chemistry; D013997:Time Factors
D000143:Acids; D000180:Acrylic Resins; D000468:Alkalies; D002327:Cariostatic Agents; C105428:Compoglass; D020770:Compomers; C029012:Composite Dental Resin; D003188:Composite Resins; C088486:Dyract; C079765:Fuji II LC cement; D005899:Glass Ionomer Cements; C106661:Hi-Dense; D008298:Maleates; D008689:Methacrylates; C081144:Photac-Fil; D011140:Polyurethanes; D019279:Resin Cements; D012117:Resins, Synthetic; D017640:Silicates; C090969:Tetric; C084550:Vitremer; C119198:Vivaglass Fil; C110713:fuji IX; C110712:ketac-molar; C067790:Vitrabond; C084541:Fuji glass-ionomer lining cement; C040964:Ketac-Fil; D005459:Fluorides