Quick answer
Sealants are a thin protective coating painted onto the chewing surfaces of back teeth, where most childhood cavities start. They seal out bacteria and food from the deep grooves a toothbrush can't reach, and they last for years with regular checkups.
Sealants are a special protective coating placed on your child’s back teeth to help prevent cavities — especially in the deep grooves where toothbrushes can’t always reach!
Think of them like a raincoat for your teeth — they keep out sugar bugs (aka bacteria!) and help your child’s smile stay strong and healthy.
Why Are Sealants Important?
- About 80–90% of cavities in permanent teeth happen on the chewing surfaces
- Sealants are painted onto these surfaces to block out germs and food
- They do not go between teeth, so flossing is still very important!
When Are Sealants Recommended?
We usually recommend sealants on:
1st Molars — Around age 6
2nd Molars — Around age 12
Your Aloha dentist may recommend sealants on other cavity-prone teeth too!
How Are Sealants Applied?
It’s quick, easy, and no numbing needed!
- Teeth are cleaned and dried
- Sealant is gently painted on the tooth
- A special blue light hardens it instantly
- That’s it — your child can eat and drink right away!
Are Sealants 100% Cavity-Proof?
Sealants give great protection — but they’re not magic shields.
Cavities can still happen if:
- Sealants wear down
- Habits change
- Bacteria increases
But they greatly reduce the risk and help keep smiles healthier longer!
How Long Do Sealants Last?
- Usually about 3 years — sometimes longer
- We check sealants at every check-up
- If needed, they can be replaced to keep protecting the tooth
Are Sealants Safe?
Absolutely!
- We use tooth-colored resin similar to fillings
- No BPA in the materials we use
- Safe for growing kids and developing smiles!
Any Special After-Care?
Eat and drink as usual — but try to avoid hard foods like:
- Hard candy
- Ice
- Popcorn kernels
These can cause sealants (and even natural teeth!) to chip or break.
Have Questions?
Ask us during your visit or give us a call!
We’re happy to talk about how sealants can help protect your child’s teeth for years to come.
Ready to book a first visit?
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Mika Katsura DDS, BSN RN
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New patients welcome — first visits are paced around your child.
Book onlineSouth Berkeley · (510) 848-6494North Berkeley · (510) 528-1546Orinda · (925) 253-8190This guide is general information for parents, not dental advice for a specific child. If you're worried about your child's teeth, call us.
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