The term “dental sealant” or “tooth sealant” refers to a plastic resin that a dentist bonds into the grooves of the chewing surface of a tooth as a means of helping to prevent the formation of tooth decay (“cavities”).
Tooth decay is caused by the bacteria found in dental plaque (the white film that forms on a person’s teeth). In general, the longer dental plaque remains on a tooth’s surface the more likely it will be able to form a cavity. The idea behind brushing teeth is that dental plaque that has accumulated on a tooth’s surface is scrubbed off. Some teeth however, related to aspects associated with their anatomy, are harder to clean than others.