The back teeth have deep grooves on their chewing surfaces that are hard to clean, even with careful brushing. These grooves are where most cavities in children begin. Dental sealants are a quick, painless way to seal these grooves and protect them from decay, particularly during the years when children are most at risk.
Sealants are a thin, protective coating, usually made of resin, applied to the chewing surfaces of the back teeth. They flow into the grooves and pits, creating a smooth surface that is easier to clean and that blocks food and bacteria from collecting.
Sealants are most commonly placed on the permanent molars soon after they come through, usually around ages six to seven and again around eleven to thirteen. In some cases, baby molars or premolars may also be sealed if they have deep grooves or a child is at high risk of decay.
The tooth is cleaned and dried, a mild solution is applied to help the sealant bond, then the sealant is painted on and hardened with a special light. There are no injections or drilling, and the process takes only a few minutes per tooth.
Sealants can last several years. Your dentist will check them at each visit and repair or reapply them if they wear or chip. Regular check-ups are important to make sure they continue to protect the teeth.
Sealants protect the chewing surfaces, but not the sides of teeth between them. Brushing twice a day with fluoride toothpaste, flossing, limiting sugary snacks and drinks, and regular check-ups are still essential.
No. Sealants are painted on without injections or drilling.
Yes. Sealants have been used for decades and are considered a safe and effective way to prevent decay.
Adults with deep grooves and no fillings in their back teeth may benefit, though sealants are most commonly used for children.
Ask about sealants at your child's next check-up.
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