What Are Dental Sealants?

Dental sealants are thin plastic coatings applied to the chewing surfaces of teeth, primarily molars and premolars. They create a barrier that protects against tooth decay by preventing bacteria and food particles from settling in the grooves of the teeth.

Especially beneficial for children and teenagers, sealants promote oral health by reducing the risk of cavities and the need for more extensive dental treatments in the future.

Understanding Dental Sealants

When dental sealants are applied, they flow into the grooves and fissures of the teeth and bond with the tooth structure. Once hardened, the sealant forms a smooth and protective layer that prevents bacteria and food particles from getting trapped in the deep crevices.

By creating this barrier, sealants make it easier to keep the teeth clean and reduce the likelihood of decay.

Types of dental sealants:

  1. Resin-based sealants: made of plastic resin material.
  2. Glass ionomer sealants: mixture of acrylic and glass powders, release fluoride.
  3. Filled sealants: contain glass or ceramic particles, increased strength.
  4. Unfilled sealants: do not contain fillers, less durable.
  5. Tooth-colored or clear sealants: match natural tooth color, provide a natural appearance.

Benefits of Dental Sealants

Benefits of dental sealants include

  1. Preventing decay by creating a protective barrier,
  2. Protecting vulnerable areas like deep grooves
  3. Fissures,
  4. Potentially saving money in the long run by reducing the need for extensive dental treatments,
  5. Enhancing oral hygiene by creating a smooth surface that is easier to clean.

They’re a great way to avoid tooth problems and keep your body healthy.

Application Process of Sealants For Teeth

The application process of dental sealants involves

  1. Examining
  2. Cleaning the teeth,
  3. Preparing the tooth surface through etching,
  4. Placing the sealant material into the grooves and fissures,
  5. Using a curing light to harden the sealant.

This process creates a protective barrier against tooth decay, ensuring proper adhesion and coverage for long-lasting effectiveness.

Suitable Candidates for Dental Sealants

Dental sealants are suitable for:

  1. Children
  2. Adolescents
  3. Adults at risk for tooth decay, particularly those with deep grooves and fissures on their teeth.

By applying sealants, these individuals can receive long-term protection against cavities, promoting better oral health and reducing the need for future dental treatments.

Maintenance and Longevity of Dental Sealants

To maintain the longevity of dental sealants, it is important to practice proper oral hygiene by:

  1. Brushing teeth regularly
  2. Flossing
  3. Healthy diet

Regular dental check-ups allow for monitoring and examination of the sealants, while timely replacement or repair of worn or damaged sealants ensures continued protection against tooth decay.

Possible Side Effects and Limitations

Dental sealants have potential side effects and limitations to consider. Allergic reactions to the materials used are rare but should be communicated to the dentist beforehand.

While sealants should not damage existing dental work, there is a slight risk of interference or dislodging in rare cases. Temporary sensitivity may occur after sealant placement but typically resolves within a few weeks. If sensitivity persists or worsens, dental consultation is advised.

Dental Sealants Cost and Insurance Coverage

Dental sealant costs can vary based on factors such as the:

  1. Number of teeth
  2. Location
  3. Dental provider

They are generally considered a cost-effective preventive measure.

Many dental insurance plans cover sealants, particularly for children and adolescents, although coverage may vary. It is advised to inquire about costs from the provider and review insurance policies to understand coverage details.

FAQs about Dental Sealants

Can adults get dental sealants?

Yes, adults who are at risk for tooth decay can benefit from dental sealants. While sealants are commonly associated with children, they can be applied to adult teeth that have deep grooves and fissures.

Are dental sealants permanent?

Dental sealants are not permanent but can last for several years with proper care. Over time, sealants may wear down or become damaged, requiring replacement or repair.

Can sealants be applied to baby teeth?

Sealants are typically applied to permanent molars and premolars, but in some cases, they can be applied to baby teeth if they have deep grooves and are at a higher risk for tooth decay.

Do sealants require special care?

Sealants do not require any special care beyond maintaining good oral hygiene practices, such as regular brushing, flossing, and visiting the dentist for routine check-ups. It is important to avoid habits like chewing on hard objects or ice, which can potentially damage the sealants.

Are dental sealants safe?

Yes, dental sealants are considered safe. The materials used in sealants have been extensively tested and approved by regulatory authorities for dental use. However, it is important to inform the dentist about any known allergies or sensitivities before sealant application.


Dental sealants are essential for preventing tooth decay by forming a protective barrier on teeth, especially in deep grooves and fissures. They offer benefits such as cavity reduction, protection of vulnerable areas, cost savings, and improved oral hygiene. It is encouraged to consult a dental professional for personalized information and advice regarding dental sealants and their suitability for your specific needs.