Fissure sealing is a prophylactic, pain free, measure consisting of covering the biting surfaces of permanent teeth, on which tooth decay often occurs, with a thin layer of sealant. This procedure is mainly carried out on the fissures and pits of recently emerged back teeth, so the smooth, sealed surface is much easier to keep clean. The sealant makes a protective barrier that keeps food and bacteria from getting into the fissures and causing decay. Dental decay easily starts in these fissures if they are not sealed. At Dentamed, this procedure is carried out with the most modern sealants. The process is quick. Sealants usually last for many years but they should be controlled on regular bases and sometimes is needed to add or replace some sealant in order to be sure that no decay can start underneath it.