A fissure sealant is a protective coating that is used to cover the chewing surfaces of the back adult teeth. It forms a hard shield that keeps food and bacteria from getting into the tiny grooves in the teeth. These grooves tend to trap plaque that causes decay, so filling the grooves will help minimise the risk of decay in these teeth.

Fissure sealant placement is a quick and painless procedure that is most commonly used on children as a preventative measure against tooth decay, but can also be used on adults who experience similar issues.