Dental Sealants for Kids: Are They Worth It?
Yes — sealants reduce cavities in back teeth by about 80%. Here's how they work and what to expect.
Dr. Fatima Hassan
General Dentist & Endodontist
What sealants are
A sealant is a thin, tooth-coloured resin applied to the biting surface of a back tooth. It fills in the deep grooves where food particles and bacteria get trapped — where manual brushing can't reach.
Why they work
Permanent molars erupt with deep pits and fissures. These are the #1 cavity location in kids (and many adults). Sealants mechanically block food and bacteria from reaching the tooth surface.
Research consistently shows sealants reduce cavities in sealed teeth by about 80% over 2 years and by about 60% over 4 years.
When to apply
- First permanent molars: shortly after eruption, around age 6
- Second permanent molars: around age 12
- Baby molars: sometimes, if the child is at high cavity risk
- Adults: yes, if you still have unsealed molars with deep grooves
The procedure
- Clean the tooth (no drilling, no anaesthesia)
- Apply mild acid for 15 seconds to prepare the surface
- Rinse and dry
- Paint resin into the grooves
- UV-cure for 20 seconds
- Check bite and polish
Total time: 5–10 minutes per tooth. Painless.
How long sealants last
- Average life: 5–10 years
- Checked at every hygiene visit: re-applied if chipped or worn
- Typically 1–2 replacements through childhood and teen years
Cost in Dubai
- Per tooth: AED 150–400
- Often covered by pediatric dental insurance
What if a cavity starts under a sealant?
Modern sealants are transparent enough for x-rays to detect underlying decay. If found early, the sealant is removed and a small filling placed. Cavities under sealants are rare — but preventable with regular check-ups.
Do adults benefit?
Yes, in specific cases. Adults with:
- Dry mouth (medication or medical condition)
- History of cavities in deep grooves
- Newly erupted wisdom teeth with deep pits
...can benefit. Routine adult sealants are less common but worth discussing at check-ups.
BPA — is it safe?
A very small amount of BPA-related compound is released during the first 3 hours after sealant placement. Long-term studies show no health effects, and modern formulations minimise this further. Major health bodies consider sealants safe.
How to maintain sealed teeth
- Normal brushing and flossing
- Fluoride toothpaste
- Reduce sticky, hard-chew foods the first 24 hours
- Hygiene visits every 6 months
References
- American Dental Association — Sealants
- Cochrane — Sealant effectiveness
- Journal of the American Dental Association
Referenced sources
- American Dental Association
- Cochrane
- JADA
Medical disclaimer. This article is informational and does not replace professional clinical advice. For a plan specific to your situation, book a consultation with a Paradise Dental specialist.
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