Revista clínica de periodoncia, implantología y rehabilitación oral
versión On-line ISSN 0719-0107
GOMEZ, S; VELIZ, A y URIBE, S. In vitro fluoride-release profile of fluoridated resin-based sealants. Rev. Clin. Periodoncia Implantol. Rehabil. Oral [online]. 2011, vol.4, n.3, pp. 93-96. ISSN 0719-0107. http://dx.doi.org/10.4067/S0719-01072011000300001.
Aim: To compare in vitro the amount of fluoride released from the main pit and fissure sealant resin-based on commercially available in Latin America. Materials and Methods: Twenty-eight samples of 12 x 2 mm were made from three commercial fluoridated resin-based sealants: Helioseal F (HF), Fissurit F (FF), Clinpro (CF) and without fluoride Delton (D), as a control. Samples were stored in 5 ml of deionized water at 37° C and neutral pH. Fluoride releases were measured at 1, 2, 3, 8, 15, 28 and 93 days with an ion-selective electrode. Data were analyzed using ANOVA and one-way and Tukey (p<0.05). Results: Fluoride-release profiles were similar for the three fluoridated sealants: a high release rates during the first 24 hrs and then a drastic drop. Afterward, they continued with a progressive decrease until day 93. The first day, FF release significantly more fluoride than HF. Between days 2 and 15, CF release significantly less fluoride than FF and HF, and later, there was no significant differences between sealants (p>0.05). Conclusion: The fluoride-release profile is similar for the fluoridated resin-based sealants under study: a high release during the first two days and afterwards, a very slow release. These results can explain the lack of differences in caries rate between fluoridated and non-fluoridated resin-based sealants observed in clinical trials.
Palabras clave : Ion-selective electrodes; pit and fissure sealants; fluorides; cariostatic agents.