Fluoride release from four visible light-cured orthodontic adhesive resins.
Decalcification of enamel during fixed orthodontic appliance treatment remains a problem. This study determined the in vitro fluoride (F) release from four light-cured orthodontic adhesives since cariostatic potential of such adhesives is related to their F releasing ability. Two nonfluoride and two fluoride-containing adhesives were tested. By means of the potentiometric analytical method, the F release of each resin was determined daily for 7 days and thereafter weekly for a month and then monthly until week 85. The data were analyzed with Kruskal-Wallis, Mann-Whitney, and Wilcoxon matched-pairs tests. The F release of all the resins were characterized by an initial burst of F release during the first day, followed by a tapering down in magnitude. FluorEver (MacroChem, Billerica, Mass.) outperformed the other adhesives in all aspects of F release and continued to release F for up to 85 weeks. Fluorapatite formation resulting from F release from orthodontic adhesives could be more advantageous in reducing decalcification during fixed appliance treatment than other preventive modalities.
Wiltshire
W A
WA
Department of Orthodontics, Faculty of Dentistry, University of Pretoria, South Africa.
Janse van Rensburg
S D
SD
D000269:Adhesives / Q000032:analysis / Q000737:chemistry*; D001031:Apatites / Q000737:chemistry; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D002327:Cariostatic Agents / Q000032:analysis / Q000737:chemistry; D003188:Composite Resins / Q000032:analysis / Q000737:chemistry*; D003738:Dental Cements / Q000737:chemistry; D005459:Fluorides / Q000032:analysis / Q000737:chemistry*; D008027:Light; D008422:Materials Testing; D009967:Orthodontic Appliances; D011199:Potentiometry; D019279:Resin Cements; D013997:Time Factors
D000269:Adhesives; D001031:Apatites; D002327:Cariostatic Agents; D003188:Composite Resins; D003738:Dental Cements; D019279:Resin Cements; C070190:FluorEver OBA; C065742:Transbond; D017438:Bisphenol A-Glycidyl Methacrylate; C047484:heliosit; C025105:fluorapatite; D005459:Fluorides