Dental sealants are a simple and effective way to protect your child’s teeth from cavities. Sealants are thin, protective coatings applied to the chewing surfaces of the back teeth (molars), where cavities are most likely to develop. The sealant material bonds to the grooves of the teeth, creating a smooth surface that is easier to clean and less likely to trap food and bacteria. Sealants are especially beneficial for children, as their newly erupted permanent teeth are more vulnerable to decay.