A thin protective coating painted on molars to protect the nooks and crannies between and behind teeth, once sealants are cured in place, they prevent 80% of cavities for two years after their application. The CDC reports that they continue to offer 50% protection for up to four years, and can be present in the mouth for up to nine years. Contact Wilmington Family Dental right away if you need Dental Sealants treatment in Wilmington MA.