Caries prevention effect of intensive application of sodium fluoride varnish in molars in children between age 6 and 7 years

The aim of this study was to evaluate the efficacy of intensive application of sodium fluoride varnish in prevention of caries in molars in children between 6 and 7 years and to evaluate the caries status in molars before and after application of fluoride varnish (Cavity Shield). Two hundred fifty children (6-7 years) randomized into varnish and control groups. Children in varnish group received fluoride varnish (Cavity Shield) three times during one week (once every 2 days). Clinical and radiographical examinations of all children were performed prior to the first application of varnish and 1 year later. For evaluation and comparison, all the collected data were subjected to statistical analysis. At the end of 1 year period, varnish group had 27.7% caries reversal in deciduous dentition which was statistically significant. Though there was a decrease in the caries increment in the permanent dentition, it was not statistically significant. Application of fluoride varnish Cavity Shield three times once a week, once a year either in permanent or in deciduous dentition, is associated with substantial reduction in caries increment. Fluoride varnish can prove to be an effective tool in prevention of dental caries in both primary and permanent dentitions.