Fluoride release profile of a nanofilled resin-modified glass ionomer cement

The present study aimed to compare the fluoride (F-) release pattern of a nanofilled resin-modified glass ionomer cement (GIC) (Ketac N100 - KN) with available GICs used in dental practice (resin-modified GIC - Vitremer - V; conventional GIC - Ketac Molar - KM) and a nanofilled resin composite (Filtek Supreme - RC). Discs of each material (n=6) were placed into 4 mL of deionized water in sealed polyethylene vials and shaken, for 15 days. F- release (μg F-/cm²) was measured each day using a fluoride-ion specific electrode. Cumulative F- release means were statistically analyzed by linear regression analysis. In order to analyze the differences among materials and the influence of time in the daily F- release, 2-way ANOVA test was performed (α=0.05). The linear fits between the cumulative F- release profiles of RC and KM and time were weak. KN and V presented a strong relationship between cumulative F- release and time. There were significant differences between the daily F- release overtime up to the third day only for GICs materials. The daily F- release means for RC were similar overtime. The results indicate that the F- release profile of the nanofilled resin-modified GIC is comparable to the resin-modified GIC.

Bibliographic Details

Main Authors:	Paschoal,Marco Aurélio Benini, Gurgel,Carla Vecchione, Rios,Daniela, Magalhães,Ana Carolina, Buzalaf,Marília Afonso Rabelo, Machado,Maria Aparecida de Andrade Moreira
Format:	Digital revista
Language:	English
Published:	Fundação Odontológica de Ribeirão Preto 2011
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402011000400002
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