A review on fluoride varnishes: an alternative topical fluoride treatment

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Abstract
The in vitro, in vivo and clinical research on topical fluoride varnishes in surveyed. The probable mechanisms of action for fluoride varnishes is discussed and this effect demonstrated from the results of in vitro and in vivo research. Findings from clinical studies are summarized and selected results are used to estimate expected preventive effects from the treatment. The practical advantages and limitations of fluoride varnishes are also reviewed and indications for the future used of these preventive agents are considered.