A sealant is a protective coating that is applied to the chewing surfaces of the back teeth (premolars and molars), where four out of five cavities in children are found. Sealant acts as a barrier to food, plaque and acid, thus protecting the decay-prone areas of the teeth. Get Appointments at http://www.smiles4kidsidaho.com/dental-topics.php#adolescent_dentistry or call us at 208-734-7415 for your best tooth care.