[Fluoride and heavy metals concentration in bottled waters: barrier measures against dental caries and fluorosis].

Objective: The daily consumption of fluoridated water is one of the most beneficial measures in dental caries prevention. The objective of this paper was to analyze the content of fluorine and heavy metals in the bottled natural mineral water available in stores in Spain.

Methods: A descriptive and transversal study was done throughout 2019.

Microleakage of conventional light-cure resin-based fissure sealant and resin-modified glass ionomer sealant after application of a fluoride varnish on demineralized enamel.

Background: International guidelines on the prevention of caries recommend sealing of the pits and fissures of the permanent molars. There is no evidence on which type of material is most effective on demineralized enamel.

Aim: To evaluate the microleakage of a conventional light-cured, resin-based fissure sealant (LCRBS), GrandiO Seal, and a resin-modified glass ionomer sealant (RMGIS), Vitremer, after application of a fluoride varnish, Bifluorid 12, on demineralized enamel.