Sealants for Kids: What Parents Should Know

As a parent, you do everything you can to keep your child healthy—and that includes protecting their smile. One simple and effective way to prevent cavities is with dental sealants.

If you’ve ever wondered what sealants are, how they work, or whether your child needs them, you’re not alone. This guide breaks down the basics so you can make an informed decision for your child’s oral health.

What Are Dental Sealants?

Sealants are thin, protective coatings that are applied to the chewing surfaces of the back teeth—especially the molars. These teeth have deep grooves and pits that are tough to keep clean, even with good brushing. Over time, food particles and bacteria can get trapped in those grooves, leading to tooth decay.

A sealant acts like a barrier, smoothing out the surface and making it easier to clean while preventing bacteria from settling in.

Why Are Sealants Recommended for Children?

Children’s molars typically begin to erupt around age 6, with second molars appearing around age 12. These newly erupted teeth are more vulnerable to decay because the enamel is still hardening and kids are still learning proper brushing techniques.

Sealants offer added protection during these cavity-prone years. According to the CDC, sealants can reduce the risk of molar cavities by up to 80%.

What’s the Process Like?

The process is quick, painless, and doesn’t require any numbing or drilling. After cleaning and drying the tooth, the dentist applies a special gel to help the sealant stick. The sealant is then painted on and hardened with a light. It only takes a few minutes per tooth.

How Long Do Sealants Last?

With good care, sealants can last several years. Your dentist will check them at regular visits and touch them up if needed. They’re a small investment that can prevent more costly dental work later on.

Are Sealants Safe?

Yes. Sealants are safe and widely recommended by dental professionals. They’re especially helpful for kids who are still developing consistent brushing and flossing habits—or those who are more prone to cavities.

Who Else Might Benefit from Sealants?

While sealants are most commonly used in children, teens and even some adults can benefit—especially if they have deep grooves in their molars or a history of cavities.

The Bottom Line

Dental sealants are a proven, affordable way to protect your child’s teeth during the years they’re most at risk for cavities. If your child is around age 6 or older and hasn’t had sealants placed yet, it’s a great time to ask your dentist if they’re a good fit.

A few minutes in the dental chair now could save your child from fillings or dental pain down the road—and help keep their smile healthy for years to come.