Dental Sealants Published Feb. 19, 2014 OFFUTT AIR FORCE BASE, Neb. -- Dental sealants act as a barrier to prevent cavities. They are a plastic material usually applied to the chewing surfaces of the back teeth (premolars and molars) where decay occurs most often. Thorough brushing and flossing help remove food particles and plaque from smooth surfaces of teeth. But toothbrush bristles cannot always reach all the way into the depressions and grooves to extract food and plaque. Sealants protect these vulnerable areas by "sealing out" plaque and food. Sealants are easy for your dentist to apply. First, the dentist dries and isolated the tooth with cotton or gauze, the sealant is painted onto the tooth enamel, where it bonds directly to the tooth and hardens. The sealant acts as a barrier, protecting enamel from plaque and acids. As long as the sealant remains intact, the tooth surface will be protected from decay. Sealants hold up well under the force of normal chewing and should last several years before a reapplication may be needed. During your regular dental visits, your dentist will check the condition of the sealants and reapply them when necessary. The likelihood of developing pit and fissure decay begins early in life, so children and teenagers are obvious candidates. But adults can benefit from sealants as well. Key ingredients in preventing tooth decay and maintaining a healthy mouth are: Brushing twice a day with an American Dental Association-accepted fluoride toothpaste Cleaning between the teeth daily with floss or another interdental cleaner Eating a balanced diet and limiting snacks Visiting your dentist regularly Ask your dentist about whether sealants can put extra power behind your prevention program. The information above was provided to you as a service by www.MouthHealthy.org, the American Dental Association's website for consumers, and the 55th Dental Squadron.