Sealants

What are Dental Sealants and How Do I Know if My Child Needs Them? A dental sealant creates a highly-effective barrier against decay. Sealants are thin plastic coatings applied to the chewing surfaces of a child's permanent back teeth, where most cavities form. Applying a sealant is not painful and can be performed in one dental visit. Your dentist can tell you whether your child might benefit from a dental sealant.