If your child’s dentist has recommended dental sealants and you are not quite sure what they are or whether they are actually necessary, you are not alone. Sealants are one of the most commonly recommended preventive treatments in pediatric dentistry — and also one of the most frequently questioned by parents who want to understand what they are agreeing to before saying yes.

Here is a straightforward answer to the question Concord parents ask most often about sealants: yes, they are worth it — and here is the evidence behind that.

What dental sealants actually are

A dental sealant is a thin, plastic coating applied to the chewing surfaces of the back teeth — primarily the molars. It is painted on as a liquid and then hardened with a curing light, forming a protective shield over the natural grooves and pits in the tooth surface.

Those grooves are exactly where most childhood cavities form. Molars have deep, narrow fissures that are virtually impossible to clean thoroughly with a toothbrush — bristles simply cannot reach all the way into the bottom of a groove that is narrower than a single bristle. Food particles and bacteria accumulate there and create the conditions for decay, even in children who brush consistently and well.

A sealant fills in those grooves, creating a smooth surface that is easy to clean and significantly more resistant to the acid produced by cavity-causing bacteria.

What the research actually shows

The evidence in favor of dental sealants is among the strongest in preventive dentistry. The American Dental Association, the American Academy of Pediatric Dentistry, and the Centers for Disease Control and Prevention all recommend sealants as an effective tool for reducing cavities in children.

According to the CDC, sealants prevent approximately 80% of cavities in the back teeth during the first two years after application — and continue to protect against roughly 50% of cavities for up to four years. School-age children without sealants have almost three times more cavities than children who have them.

That is not a marginal benefit. For a child who is at any meaningful risk of cavities — which describes most children — sealants represent a significant, evidence-backed reduction in decay risk.

Which teeth get sealants and when

Sealants are most commonly applied to the permanent first molars, which typically erupt around age six, and the permanent second molars, which erupt around age twelve. These are the teeth with the deepest grooves and the highest cavity risk — and sealing them shortly after they erupt provides the longest window of protection.

The AAPD recommends sealants for all children and adolescents on their permanent molars as soon as those teeth have fully erupted. In some cases, sealants may also be appropriate for baby molars in children who are at particularly high cavity risk.

The application itself is quick and entirely painless. No drilling, no injections, no discomfort. The tooth is cleaned, conditioned, painted with the sealant material, and cured with a light — the whole process takes only a few minutes per tooth.

How long do sealants last?

Sealants are durable but not permanent. With normal chewing, they typically last between five and ten years. During routine dental visits, the dental team checks the condition of existing sealants and can reapply them if any have worn down or chipped.

A sealant that is intact and well-bonded is providing active protection. One that has partially come off is no longer doing its job in the affected area — which is exactly why regular checkups are important even for children who have been sealed.

Do sealants mean my child does not need to brush?

No — and this is a common misconception worth addressing directly. Sealants protect the chewing surfaces of the molars, but they do not cover the sides of the teeth or the spaces between teeth. Cavities can still form in those areas, which is why brushing twice daily and flossing remain essential regardless of whether sealants are in place.

Think of sealants as an additional layer of protection on top of good oral hygiene habits — not a replacement for them. A child with sealants who brushes and flosses consistently is significantly better protected than a child with sealants who does not.

What about the cost? Does insurance cover sealants?

The cost of dental sealants varies by practice, but the per-tooth cost is typically in the range of $30 to $60. Most dental insurance plans — including many plans used by families in Concord — cover sealants for children, often at 100% for permanent molars up to a certain age, typically 14 or 16.

Denti-Cal, California’s Medicaid dental program, also covers sealants for eligible children. If your child is enrolled in Medi-Cal, sealants are likely covered at no cost to your family.

Even without insurance coverage, the cost of sealants is almost always lower than the cost of treating a single cavity — which requires a filling, and potentially more extensive treatment if the decay reaches the nerve. From a purely financial standpoint, sealants are one of the highest-return preventive investments available in pediatric dentistry.

Are there any risks or downsides?

Sealants are one of the safest dental treatments available. The material used is well-studied and the procedure itself carries essentially no risk — there is no drilling, no anesthetic, and no recovery time.

The most common concern parents raise is about BPA, a chemical found in some plastics. Some early-generation sealant materials contained trace amounts of BPA-related compounds. However, modern dental sealant materials have largely addressed this, and the amounts involved were always well below any threshold associated with health effects. The AAPD considers current sealant materials safe for use in children.

If you have specific questions about the material used at your child’s appointment, it is always appropriate to ask the dental team directly.

When sealants are not the right choice

Sealants are most effective when applied to teeth that do not already have cavities or existing fillings. A tooth that already has decay cannot simply be sealed over — the decay must be treated first. Because of this, the timing of sealant application matters. Ideally, sealants are placed shortly after the molar fully erupts and before any decay has had a chance to begin.

This is one more reason why regular checkups starting early are important. When a dentist is monitoring your child’s teeth on a consistent schedule, they can identify the right moment to apply sealants — and catch any early decay before it rules out the option.

Sealants at Hopscotch Children’s Dentistry in Concord

At Hopscotch Children’s Dentistry, dental sealants are a routine part of our preventive care approach for school-age children. Dr. Yasmine Zaeni evaluates each child’s individual cavity risk and tooth development at every visit, and recommends sealants when the timing and clinical picture make them appropriate.

The application is fast, comfortable, and completed in the same visit as a routine cleaning in most cases. Our team takes the time to explain the process to both the parent and the child before we begin — so there are no surprises and everyone knows what to expect.

Full range of pediatric dental services in Concord

Questions about sealants for your child?

📞 925-254-4777
📧 hello@hopscotchdental.com
🌐 hopscotchdental.com

One short appointment now can prevent years of cavities later. 💙