Fissure sealant is usually a composite resin sealant; it requires a dental professional to apply it for us.
If there are deep fissures on a tooth, dental plaque can easily accumulate in these areas where toothbrush bristles cannot access to and clean these areas.
In order to prevent these teeth from tooth decay, we need to apply fissure sealants to seal these fissures.
First use diluted acid to etch the surface of the tooth so that the sealant can adhere onto the tooth
Use water to wash away the acid, blow-dry the tooth, and then apply the fissure sealant onto the fissure
Use curing light (a dental light source) to harden the fissure sealant in the fissure