Seal Out Tooth Decay

Even if you brush, floss, rinse with fluoride, and never eat a sticky sweet, decay-causing bacteria can invade the tiny pits and crevices in your molars, or chewing teeth. To head off that kind of decay, researchers have developed sealants-special plastic coatings that form an effective barrier between bacteria and the chewing surfaces of your teeth, where fluoride is less effective.

Approximately 90 percent of the cavities in school-age children occur in crevices in the back teeth, so sealants are best applied when the permanent molars first emerge. (The American Dental Association reports a significant decrease in cavities in children who have sealants applied to their teeth.) But that doesn’t mean sealants aren’t useful or appropriate for adults who have cavity-prone teeth. So ask your dentist or dental hygienist about sealants the next time you have a dental checkup.

The procedure is simple, pain-free, and won’t interfere with later dental work. Sealed teeth may need to be touched up periodically, though.