Cavities are one of the most common dental problems in children, even with regular brushing and flossing. Certain teeth, especially molars, have deep grooves that trap food and bacteria, making them harder to clean. That’s where dental sealants come in.
But do they really work? Are they safe? And should your child get them? This article will answer all your questions about dental sealants for kids and explain how they can help prevent cavities.
What Are Dental Sealants?
Dental sealants are thin, protective coatings made of a special plastic material that is applied to the chewing surfaces of molars and premolars. These teeth have deep grooves where food and bacteria accumulate, increasing the risk of cavities. Sealants fill in these grooves, creating a smooth surface that prevents plaque buildup and makes brushing more effective.
The American Dental Association (ADA) states that sealants reduce the risk of cavities in molars by up to 80%. Since molars are more vulnerable to decay, sealants act as an extra layer of protection.
How Do Sealants Work?
The process of applying sealants is quick, painless, and non-invasive. It typically takes just a few minutes per tooth and doesn’t require anesthesia. Here’s how it works:
- Cleaning the Tooth – The dentist thoroughly cleans the tooth to remove any plaque or debris.
- Preparing the Surface – A special gel is applied to the tooth to help the sealant bond properly.
- Applying the Sealant – The sealant is painted onto the grooves of the molar, where it flows into the crevices.
- Hardening the Sealant – A curing light is used to harden the material, forming a strong barrier against bacteria.
Once the sealant is in place, it provides long-lasting protection, usually for 5 to 10 years, depending on wear and tear.
Are Sealants Safe for Children?
Yes, dental sealants are completely safe for kids. The plastic material used in sealants is BPA-free and does not pose any health risks. The amount of BPA exposure from sealants is 100 times lower than what a child is exposed to through daily foods and drinks.
Because the procedure is non-invasive, there is no drilling, no pain, and no discomfort, making it an ideal solution for young children who may be anxious about dental treatments.
At What Age Should Kids Get Dental Sealants?
Sealants are most effective when applied to permanent molars as soon as they erupt:
- First molars appear around age 6
- Second molars erupt around age 12
Applying sealants early helps protect these teeth from cavities before decay has a chance to develop. Even though baby teeth eventually fall out, some children with deep grooves in their primary molars may also benefit from sealants.
Do Dental Sealants Replace Brushing and Flossing?
No, sealants are an extra layer of protection but not a replacement for good oral hygiene. Kids still need to:
- Brush twice a day with fluoride toothpaste
- Floss daily to remove plaque between teeth
- Limit sugary snacks and drinks that contribute to tooth decay
- Visit the dentist regularly for check-ups and professional cleanings
Sealants work best when combined with a strong oral care routine.
How Long Do Sealants Last?
Sealants typically last 5 to 10 years but may wear down over time due to chewing and grinding. During regular dental visits, the dentist will check if the sealants are intact and reapply them if necessary.
Are Sealants Covered by Insurance?
Many dental insurance plans, including Medi-Cal, cover sealants for children, as they are considered a preventive treatment. This makes them an affordable and cost-effective way to protect your child’s teeth from cavities.
Should Your Child Get Dental Sealants?
If your child has deep grooves on their molars and is at a higher risk of cavities, sealants are a great preventive measure. They provide:
✅ Extra protection against decay
✅ A painless, non-invasive solution
✅ Long-term cavity prevention
At OSO Pediatric Dentistry, we specialize in preventive care to help children maintain healthy, cavity-free smiles.
Call us today at (805) 204-2910 to learn more about dental sealants or to schedule an appointment for your child!