Have you ever sealed a wood deck against weathering? Ever varnished a painting? If so, you’re already familiar with the idea behind sealants.
Beyond brushing and flossing, dental sealants provide an extra way to protect against cavities. This preventive step armors your back teeth against tooth decay while helping you avoid the cost of fillings or crowns. Tooth decay is one of the most common chronic diseases in the United States, according to both the National Center for Biotechnology Information and the U.S. National Library of Medicine.