V17N04 | 2012 | Original Article | Pages 205 to 209
Rogério Lacerda Dos Santos, Matheus Melo Pithon, Júlia Barbosa Pereira Leonardo, Edna Lúcia Couto Oberosler, Delmo Santiago Vaitsman, Antônio Carlos De Oliveira Ruellas
Glass ionomer cement, Fluoride release, Varnish,
The objective of the authors was to evaluate fluoride release of 3 glass ionomer cements with immediate protection of fluoride varnish (Cavitine, SS White), divided into 3 groups: Group M (Meron, VOCO), Group V (Vidrion C, SS White) and Group KC (Ketac-Cem, 3M ESPE). Fluoride release was measured during 60 days by means of an ion-selective electrode connected to an ion analyzer. After 4 weeks, the test specimens were exposed to a solution of 0221% sodium fluoride (1000 ppm of fluoride). Results showed that the cements reached a maximum peak of fluoride release in a period of 24h. There was a statistically significant difference between the amount of fluoride released after the applications of fluoride among the groups from the 31st to 60th day (p> 0.05). The Vidrion C and Meron cements showed better performance to uptake and release fluoride when compared with Ketac-Cem cement.