Preventing cavities in children isn’t always easy. Even with daily brushing, flossing, and regular dental checkups, many kids are still at risk—especially when it comes to the back molars, where deep grooves make it easy for food and bacteria to hide. That’s where dental sealants come in. This quick, painless treatment can dramatically reduce the risk of decay in children’s teeth.
At Dentist of Bixby Knolls in Long Beach, we often recommend sealants as part of a preventive care plan for kids. They’re one of the most effective ways to protect vulnerable areas of the teeth during the cavity-prone years of childhood and adolescence. If you’re curious about how sealants work and whether your child might benefit from them, here’s everything you need to know.
What Are Dental Sealants?
Sealants are thin, protective coatings made of medical-grade resin that are applied to the chewing surfaces of the back teeth—usually the permanent molars. These teeth have deep pits and grooves where food particles, plaque, and bacteria tend to collect. Even with excellent brushing habits, it’s difficult to clean these areas thoroughly, especially for younger children.
By creating a smooth, protective barrier over the tooth’s surface, sealants make it easier to keep these hard-to-reach spots clean and reduce the risk of cavities.
How Do Sealants Work?
The sealant material bonds to the grooves of the tooth and hardens, forming a protective layer that acts as a shield against food debris and bacteria. This keeps harmful substances from settling into the pits of the tooth, which are the most common spots for decay to form.
Sealants are most commonly applied to the first and second permanent molars, which typically erupt around age 6 and age 12. In some cases, sealants can also be used on baby teeth with deep grooves or on older teens and adults at high risk for cavities.
The Benefits of Dental Sealants
The biggest benefit of sealants is cavity prevention, but they also provide peace of mind for parents and support better long-term oral health.
Key advantages include:
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Up to 80% cavity reduction
in molars within the first two years
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Fast and painless
application—no numbing or drilling required
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Lasting protection
for several years with proper care
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Cost-effective preventive care,
potentially saving money on future fillings or restorations
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Supports better oral hygiene
by smoothing rough surfaces that are hard to brush
Sealants are especially helpful for children who are still developing good brushing and flossing habits—or who are prone to decay due to genetics, diet, or oral anatomy.
What to Expect During a Sealant Appointment
Sealant application is a quick, non-invasive procedure that can usually be done during a routine dental checkup or cleaning. It typically takes just a few minutes per tooth.
Here’s what the process looks like:
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Cleaning the tooth:
We start by thoroughly cleaning and drying the tooth to remove plaque and debris.
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Prepping the surface:
A gentle etching solution is applied to help the sealant bond to the tooth.
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Applying the sealant:
The sealant material is painted onto the chewing surface of the tooth.
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Hardening the sealant:
A special curing light is used to harden the sealant and lock it in place.
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Checking the bite:
We’ll make sure your child’s bite feels normal and adjust if needed.
There’s no discomfort, and your child can eat and drink normally as soon as the appointment is over.
How Long Do Sealants Last?
Sealants can last between 3 to 7 years, and in some cases even longer with proper care. They’ll be checked during each dental visit to ensure they’re still intact and protecting the tooth effectively. If a sealant becomes worn or damaged, it can be repaired or reapplied easily.
To help sealants last as long as possible, encourage your child to:
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Brush and floss daily
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Avoid chewing on hard objects like ice or pens
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Limit sticky, chewy snacks that could dislodge the sealant
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Continue visiting the dentist every six months for checkups
Are Sealants Safe?
Yes—dental sealants are safe and approved by the American Dental Association (ADA) and Centers for Disease Control and Prevention (CDC). The material used is designed specifically for oral use and has been proven effective through decades of research.
Some parents have questions about BPA in dental products. While trace amounts may be present in certain sealant materials, the levels are extremely low—well below any health concern—and far less than the BPA found in everyday items like plastic containers or receipts.
If you have questions or concerns about the materials used, we’re happy to walk you through the options and choose the best solution for your child.
Who Should Get Sealants?
Sealants are most effective when applied shortly after the molars erupt—typically around age 6 for first molars and age 12 for second molars. However, sealants can also be beneficial for:
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Younger children with deep grooves in baby teeth
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Teens with poor brushing habits or a high cavity risk
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Adults with recurring decay in molars or pits in other teeth
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Patients with medical conditions that make oral hygiene more difficult
If you’re not sure whether your child needs sealants, our dental team can evaluate their teeth during their next visit and make a personalized recommendation.
Sealants vs. Fluoride Treatments
While both sealants and fluoride help prevent cavities, they work in different ways and can be used together for even better results.
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Sealants
create a physical barrier on the surface of the tooth
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Fluoride
strengthens the enamel and helps it resist acid and bacteria
For most kids, we recommend both sealants and fluoride as part of a well-rounded preventive care plan.
Schedule Your Child’s Sealant Appointment Today
Dental sealants are one of the easiest, most effective ways to protect your child’s smile from cavities—especially during the cavity-prone years of childhood. With a quick, painless appointment, you can give your child lasting protection that supports better oral health, fewer fillings, and more confident checkups.
At Dentist of Bixby Knolls, we believe prevention is the best investment you can make in your child’s smile—and sealants are a smart place to start.
Ready to give your child extra protection against cavities? Contact Dentist of Bixby Knolls in Long Beach to schedule a sealant appointment. Our gentle, experienced team will walk you through the process and help your child feel comfortable, confident, and cared for every step of the way.
