The chewing surface and sides of our teeth have small pits and grooves created by the development of the enamel. These pits and grooves are ideal areas for bacteria to migrate into and cause decay. Sealants are used to seal off these pits and grooves preventing tooth decay. They are most commonly used on young patients and are most successful when applied soon after a tooth erupts.
Applying sealants does not guarantee that a patient will not get decay in the tooth. When used properly sealants are a very cost effective means of decay prevention. It should be noted that sealants could be dislodged if the patient eats hard or sticky foods.