Do conventional glass ionomer cements release more fluoride than resin-modified glass ionomer cements?
Cabral Maria Fernanda Costa, Martinho Roberto Luiz de Menezes, Guedes-Neto Manoel Valcacio, Rebelo Maria Augusta Bessa, Pontes Danielson Guedes, Cohen-Carneiro Flavia,
소속 상세정보
( Cabral Maria Fernanda Costa ) - Federal University of Amazonas School of Dentistry
( Martinho Roberto Luiz de Menezes ) - Federal University of Amazonas School of Dentistry Postgraduate Program in Dentistry
( Guedes-Neto Manoel Valcacio ) - Federal University of Amazonas School of Dentistry
( Rebelo Maria Augusta Bessa ) - Federal University of Amazonas School of Dentistry Postgraduate Program in Dentistry
( Pontes Danielson Guedes ) - Federal University of Amazonas School of Dentistry Postgraduate Program in Dentistry
( Cohen-Carneiro Flavia ) - Federal University of Amazonas School of Dentistry Postgraduate Program in Dentistry
KMID : 1034420150400030209
Abstract
Objectives: The aim of this study was to evaluate the fluoride release of conventional glass ionomer cements (GICs) and resin-modified GICs.
Materials and Methods: The cements were grouped as follows: G1 (Vidrion R, SS White), G2 (Vitro Fil, DFL), G3 (Vitro Molar, DFL), G4 (Bioglass R, Biodinamica), and G5 (Ketac Fil, 3M ESPE), as conventional GICs, and G6 (Vitremer, 3M ESPE), G7 (Vitro Fil LC, DFL), and G8 (Resiglass, Biodinamica) as resin-modified GICs. Six specimens (8.60 mm in diameter; 1.65 mm in thickness) of each material were prepared using a stainless steel mold. The specimens were immersed in a demineralizing solution (pH 4.3) for 6 hr and a remineralizing solution (pH 7.0) for 18 hr a day. The fluoride ions were measured for 15 days. Analysis of variance (ANOVA) and Tukey’s test with 5% significance were applied.
Results: The highest amounts of fluoride release were found during the first 24 hr for all cements, decreasing abruptly on day 2, and reaching gradually decreasing levels on day 7. Based on these results, the decreasing scale of fluoride release was as follows: G2 > G3 > G8 = G4 = G7 > G6 = G1 > G5 (p < 0.05).
Conclusions: There were wide variations among the materials in terms of the cumulative amount of fluoride ion released, and the amount of fluoride release could not be attributed to the category of cement, that is, conventional GICs or resin-modified GICs.
키워드
Dental materials; Fluorides; Glass ionomer cements
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