The basics
What are fissure sealants?
Look closely at a back tooth and you will see its chewing surface is not smooth. It is folded into pits and narrow grooves, called fissures, some of them finer than a single toothbrush bristle. Food and bacteria pack into these grooves and stay there, which is why the biting surfaces of molars are where most children's cavities start.
A fissure sealant is a flowable resin that runs into those grooves and sets hard, leaving a smoother surface that is far easier to keep clean. It does not change how the tooth looks or feels when your child bites, and it can be added to a routine check-up visit.










