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What Are Dental Sealants?

What Are Dental Sealants?

Dental sealants are one of the easiest and most effective tools available to protect your child's teeth from cavities. Despite being quick and painless to apply, they are often underutilized — many parents simply are not aware of how much protection they can provide.

What Are Dental Sealants?

Sealants are thin, plastic-like coatings that are painted onto the chewing surfaces of the back teeth — primarily the molars and premolars. These surfaces have deep grooves and pits where food particles and bacteria tend to collect, making them particularly vulnerable to decay. Sealants fill in these grooves, creating a smooth surface that is much easier to clean with a toothbrush.

How Do They Work?

The process is straightforward:

1. The tooth is cleaned and dried 2. A special solution is applied to help the sealant bond to the tooth 3. The sealant material is painted onto the chewing surface 4. A curing light is used to harden the sealant in place

The entire procedure typically takes just a few minutes per tooth and is completely painless — no drilling or anesthesia required.

Benefits of Dental Sealants

The evidence supporting sealants is compelling. According to the CDC, sealants can prevent up to 80% of cavities in the back teeth during the first two years after application, and continue to provide protection for up to four years or more. Key benefits include:

- Significant reduction in cavity risk

  • Quick and painless application
  • Long-lasting protection with proper care
  • Cost-effective compared to treating cavities

Who Should Get Sealants?

Sealants are most beneficial for children when their permanent molars first come in — typically around ages 6 and 12. Applying sealants early, before cavities have a chance to develop, provides the greatest protective benefit. Children who are at higher risk for cavities — including those with a history of decay, irregular brushing habits, or frequent sugar intake — are especially good candidates.

How Long Do Sealants Last?

With normal wear, sealants can last several years. Your dentist will check the condition of existing sealants at each routine visit and reapply them if needed.

Do Sealants Replace Brushing and Flossing?

No — sealants protect the chewing surfaces of back teeth, but they do not cover the sides of teeth where cavities also commonly form. Brushing twice daily, flossing once daily, and attending regular dental checkups remain essential, even with sealants in place.

Sealants are a simple, proven step that can save your child from the discomfort and expense of treating cavities. Ask our team whether your child is a good candidate at your next visit.