Fluoride release and uptake characteristics of aesthetic restorative materials

Summary The aims of this study were firstly to investigate the fluoride‐releasing characteristics of two composite resins (Tetric and Valux Plus), two polyacid‐modified resin composites (Compoglass and Dyract), and conventional glass–ionomer cement (Ceramfil β). The second aim was to assess the fluo...

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Veröffentlicht in:Journal of oral rehabilitation 2002-08, Vol.29 (8), p.791-798
Hauptverfasser: Attar, N., Önen, A.
Format: Artikel
Sprache:eng
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Zusammenfassung:Summary The aims of this study were firstly to investigate the fluoride‐releasing characteristics of two composite resins (Tetric and Valux Plus), two polyacid‐modified resin composites (Compoglass and Dyract), and conventional glass–ionomer cement (Ceramfil β). The second aim was to assess the fluoride uptake and subsequent release from the same range of materials. Fifteen discs (6 mm diameter and 1·5 mm height) were prepared for each material. Each disc was immersed in 4 ML of deionized water within a plastic vial. The release of fluoride was measured daily at 1, 2, 3, 4, 5, 15, 30 and 60 days. After daily fluoride release was measured for 60 days, samples were refluoridated in 1000‐ppm sodium fluoride (NaF) solutions (pH 6·6) for 10 min and fluoride release was measured daily for a total of 5 days. The release of fluoride from aesthetic restorative materials was measured by using specific fluoride electrode and an ionanalyser. Results were statistically analysed by two‐way repeated measure ANOVA and Duncan's multiple range test. The results revealed that all fluoride‐containing materials (Ceramfil β, Compoglass, Dyract, Tetric) released fluoride initially and the release was greatest at the first day. At any time during the test period Ceramfil β released the most and Valux Plus did not release any detectable fluoride (P 
ISSN:0305-182X
1365-2842
DOI:10.1046/j.1365-2842.2002.00902.x