Are Sealants Recommended for Everyone at All Ages?

Are dental sealants right for you or your child? Learn what dental sealants are, who benefits most from the cavity protection that sealants can offer, and when sealants may not be necessary based on your individual needs.

Dental sealants can be incredibly effective in preventing cavities, but should everyone be getting sealants? If you’re wondering whether your child — or you yourself — should get them, here’s what you need to know.

Our team at Austin Advanced Dentistry offers comprehensive dental care for adults and children in Austin, Texas. Dental sealants offer significant cavity-prevention benefits for certain people at certain ages, and understanding who benefits most from sealants helps you make informed decisions about your family's oral health.

How dental sealants work

Your back teeth have deep grooves and pits that make it easy for bacteria and food particles to accumulate and for cavities to start forming. A dental sealant is a thin coating that the dentist applies to the chewing surfaces of your molars and premolars. The sealant fills the grooves in these teeth, creating a smooth surface that's easier to clean and more resistant to decay.

Getting sealant is quick and painless, and we can do it as part of your routine dental cleaning. We thoroughly clean your teeth, apply a gel that helps the sealant bond, rinse it away, then apply the liquid sealant and harden it under a special light. The entire process takes just a few minutes per tooth.

The benefits of dental sealants for all ages

Children are often the best candidates for dental sealants. Your child's permanent molars come in around age six, and their premolars come in around age twelve. These newly erupted teeth are particularly vulnerable to cavities because the grooves are deep and children are still learning proper oral hygiene habits.

Applying sealants immediately after your child’s permanent back teeth come in can provide years of extra cavity protection. Sealants are especially beneficial if your child has a history of cavities, has deep grooves in their molars, or isn't diligent with brushing and flossing. Even children with excellent oral hygiene benefit from sealants as an added layer of protection.

Adults can get sealants too, though it’s less common. If you have deep grooves in your molars and haven't experienced extensive decay yet, sealants might provide protective benefits. You might also benefit from sealants if you have a history of frequent cavities despite good oral hygiene and you don’t already have fillings in your back teeth.

When sealants may not be recommended

Sealants can prevent up to 80% of cavities in your back teeth, but there are a few reasons why we may not recommend them. First, you can’t get dental sealant on teeth with active cavities, existing decay, or fillings. Sealants are meant to protect healthy tooth surfaces. They can’t treat decay that’s already happening — and if you have an existing filling, the tooth surface is already protected and restored.

And if your teeth have shallow grooves or relatively smooth chewing surfaces, sealants provide minimal benefit. Decay typically develops in deep pits and crevices where bacteria hide, so teeth with shallow grooves don't create the same cavity risk.

Dental sealants are an excellent preventive tool for many children and some adults, but they're not necessary for everyone. We can evaluate your or your child’s individual risk factors, like age, cavity history, oral hygiene habits, and tooth structure, to recommend whether sealants are a good option.