Indentations on the chewing surfaces of deciduous and permanent molars are defined as fissures. Structurally, in some teeth these grooves are shallow and wide, while in others they are narrow, deep and irregular.
Narrow, deep and irregular fissures create an ideal environment for plaque accumulation and make brushing and cleaning almost impossible.
Fissure sealant is a protective application, it is not suitable for teeth that have lost material due to caries.
The purpose of fissure sealants is to cover the recesses of teeth with narrow, deep and irregular recesses with a fluid/liquid filling material before they decay and to obtain more easily cleanable surfaces. It is a painless and easy procedure.