If your child has recently had their permanent molars come in, their dentist may have mentioned dental sealants. Many parents have questions: what exactly are sealants, are they safe, and does my child really need them? The short answer is that sealants are one of the most well-researched and cost-effective tools for preventing cavities in children — and most kids are good candidates. Here is what you need to know.
What Are Dental Sealants?
A dental sealant is a thin plastic coating painted onto the chewing surfaces of the back teeth — specifically the premolars and permanent molars. These teeth have deep pits and grooves that are difficult to clean thoroughly with a toothbrush, making them the most cavity-prone teeth in the mouth. The sealant flows into those grooves and hardens to create a smooth, easy-to-clean surface that is far less hospitable to the bacteria that cause tooth decay.
How Effective Are They?
Research from the Centers for Disease Control confirms that sealants can prevent up to 80 percent of cavities in the back teeth where most childhood tooth decay occurs. The CDC recommends sealants for all school-age children and estimates that children without sealants are three times more likely to develop cavities in their molars than those who have them. They are particularly valuable during the cavity-prone years between ages 6 and 14.
Are Sealants Safe?
Yes. Dental sealants are made from BPA-free resin materials and are endorsed by the American Dental Association and the American Academy of Pediatric Dentistry. The amount of material used is extremely small, and once hardened, it sits passively on the tooth surface. Any negligible BPA exposure that can occur is considered well within safe limits by major health organizations. Sealants have been used safely in pediatric dentistry for decades.
What to Expect at the Appointment
Getting sealants is fast and completely painless — no shots, no drilling required. The dentist or hygienist cleans and dries the tooth, applies a mild gel to help the sealant bond, rinses and dries it again, then paints on the sealant material. A small curing light hardens it in place in just a few seconds. The entire process for one tooth takes only a couple of minutes. Your child can eat and drink normally after the visit.
How Long Do Sealants Last?
Sealants typically last between 5 and 10 years with proper care, and your dentist will check them at every routine visit to make sure they remain intact. If a sealant chips or wears down, it can be easily reapplied. It is worth noting that sealants protect the chewing surfaces only — regular brushing, flossing, and fluoride use are still essential. Sealants work best as part of a complete oral care routine, not as a replacement for one.
Wondering if sealants are right for your child? Ask us at your next visit or call Fort Dental Kids Dentistry and Orthodontics at (206) 242-4121 to schedule an appointment. We are located in Tukwila, Washington, and love helping families protect their kids’ smiles.