When children come in for their regular checkups, we check the permanent molars for decay. We use a Diagnodent laser that examines the teeth for decay. If the teeth are not decayed, we recommend sealants, which are a clear plastic coating that protects the teeth from decay. Before the sealants are placed, we clean the crevices and grooves of the teeth and then place the sealant material. Sealants are an excellent way to protect teeth.