Dental sealants are a protective coating applied to the chewing surfaces of the back teeth (molars), where cavities are most likely to develop. Sealants act as a barrier, preventing food particles and bacteria from getting trapped in the grooves of the teeth. This simple, painless procedure is especially beneficial for children, whose newly erupted permanent teeth are more vulnerable to decay. Sealants can provide years of protection and are a valuable part of any preventative care routine.