Abstract
It has long been known that fissure sealants are an important part of the prevention and control of dental caries in pits and fissures. However, their usage is still sporadic and generally not related to evidence-based guidelines. Caries prevalence has changed since sealants were introduced and this has significant implications for the criteria on which to select patients who would most benefit from their usage. The clinical technique for successful fissure sealant application is very moisture and operator sensitive. However, there is accumulating evidence that use of fissure sealants can be extended, given suitable investigation, to the early carious lesion as a 'preventive resin restoration'.
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