Overlake Family Dentistry — Continuing 30+ Years of Conservative, Patient-First Care in Bellevue
Overlake Family Dentistry

Pediatric Dentistry

Sealants

A thin protective coating that shields the grooves of back teeth, helping guard against cavities.

Sealants

Why back teeth get cavities first

Run your tongue over your back teeth and you’ll feel ridges and pits. Some of those grooves are narrower than a single toothbrush bristle. Food and bacteria settle in and stay, which is why so many kids’ cavities start on the chewing surfaces of the molars.

A sealant is a thin protective coating that we paint into those grooves. It hardens into a smooth surface. There’s less room for food to hide, and brushing can reach what’s left.

Timing matters. Molars are most likely to get cavities in the first few years after they come in. Say your 7-year-old’s first molars just came in. That’s usually a good time to talk about sealing them, and again around age 12 when the second molars arrive. We’ll look at the teeth and tell you honestly whether sealants make sense. Not every tooth needs one.

No drilling, no numbing

We clean the tooth, dry it, paint the sealant into the grooves, and let it harden. It takes a few minutes per tooth. Nothing gets drilled, and nothing needs to be numbed, so it’s an easy visit even for nervous kids.

Sealants can protect teeth for several years. We check them at regular cleanings and touch up or reapply any that have worn down. They don’t replace brushing and flossing. They help with the grooves a toothbrush can’t reach, and that small step can save your child a filling later on.

Frequently asked questions

What is a dental sealant?
A sealant is a thin, protective coating painted onto the chewing surface of the back teeth. It fills in the deep grooves where food and bacteria tend to collect, making those spots easier to keep clean.
Does getting a sealant hurt?
Not at all. Applying a sealant is quick and comfortable, with no drilling or numbing needed. We simply clean the tooth, apply the coating, and let it set.
How long do sealants last?
Sealants can protect teeth for several years. We check them at regular visits and can easily touch up or reapply one if it wears down over time.
Do sealants replace brushing and flossing?
No. Sealants add an extra layer of protection to hard-to-clean grooves, but daily brushing, flossing, and regular checkups are still the foundation of a healthy smile.

Questions about sealants?