DENTAL SEALANTS: THE INVISIBLE BARRIER AGAINST CAVITIES

DENTAL SEALANTS: THE INVISIBLE BARRIER AGAINST CAVITIES

3 min readMarch 3, 2026

Dental sealants are a thin layer of resin applied to the surface of molars and premolars to protect them from cavities.

Dental sealants are a thin layer of resin applied to the surface of molars and premolars to protect them from cavities. These teeth, having deep grooves, are more prone to accumulate food debris and bacteria, even with good oral hygiene.

With high-quality sealants, an invisible protective barrier is created that prevents acids and bacteria from damaging dental enamel.

Why is it important to apply dental sealants?

Sealants act as a protective shield that prevents cavity development in posterior teeth, especially during childhood and adolescence, stages when cavity risk is higher.

Additionally, this procedure:
• Prevents cavity appearance from early years of life.
• Avoids more expensive or invasive future treatments.
• Protects newly erupted permanent teeth.
• Complements daily oral hygiene, without replacing brushing or flossing.

How are dental sealants placed?

The procedure is quick, painless, and requires no anesthesia. These steps are followed:
1) Deep cleaning of the tooth to remove plaque or residue.
2) Drying and application of a substance that favors adhesion.
3) Placement of liquid sealant over the tooth's grooves.
4) Drying with a special light to harden the protective layer.

The result is a smooth and protected surface that hinders bacterial accumulation.

Who is recommended to apply sealants?

• Children with newly erupted permanent teeth.
• Adolescents with cavity history.
• Adults with deep grooves or prone to cavities.

Although more associated with children, sealants also benefit adults who want to reinforce dental prevention.

How long do dental sealants last?

Sealants can last between 5 and 10 years, depending on hygiene habits and regular dental check-ups. During periodic reviews, specialists verify their status and perform touch-ups if necessary, ensuring continuous protection against cavities.

Protect your family's smile with prevention

With specialized dentists using state-of-the-art materials and safe techniques, sealants are applied effectively. Remember: preventing will always be easier and more economical than treating an advanced cavity.

Ready to transform your smile?

Book a consultation today