What is a Sealant?

A sealant is a barrier that protects tooth enamel from plaque and acids. It is a plastic-like material (a resin) that’s applied to the chewing surfaces of the back teeth - the premolars and molars. The resin bonds to the depressions and grooves (called pits and fissures) in the back teeth. Sealants form a thin, clear, protective covering to decrease the risk of tooth decay.

Children and teenagers are primary candidates for sealants because the likelihood of developing decay begins as soon as the back teeth appear. Sealants are usually placed on the surfaces of teeth that have not been previously filled and that show no signs of decay.

How are Sealants Applied?

It takes only a few minutes to seal each tooth. The procedure, which is virtually painless, rarely involves drilling or anesthesia.

First, the teeth are cleaned and the chewing surfaces are conditioned to help the sealant adhere to each tooth. Then, the sealant is “painted” onto the chewing surface where it flows into the pits and fissures, bonding to each tooth as it hardens. A special curing light may be used to help the sealant harden.

How Long do Sealants Last?

As long as the resin remains intact, the chewing surface is protected from decay. Sealants hold up well under the force of normal chewing. They usually last several years before reapplication is needed. Our dentists will check the condition of your sealants at each check-up.

To watch a short video about sealants, click on the play button.