Dental Sealants
Lighthouse Dental
A dental sealant is a thin, protective coating applied to the chewing surfaces of the back teeth (molars and premolars). These teeth have deep grooves and pits, which can be difficult for toothbrush bristles to reach. By filling in these grooves, sealants create a smooth surface that acts as a barrier, preventing food particles and decay-causing bacteria from getting trapped and forming cavities.
The Procedure
Applying a dental sealant is a quick and painless process that doesn’t require any drilling or anesthesia. The procedure typically involves the following steps:
- The tooth is thoroughly cleaned to remove any plaque or food debris.
- A special gel is applied to the tooth’s surface for a few seconds to slightly roughen the enamel, which helps the sealant bond securely.
- The tooth is rinsed with water and completely dried.
- The sealant, which is a liquid resin, is painted onto the chewing surface of the tooth.
- A special blue light is used to harden and “cure” the sealant, turning it into a durable protective shield in just a few moments.
Benefits and Longevity
Dental sealants are a highly effective and cost-efficient way to prevent tooth decay, especially in children and teenagers whose permanent molars are newly erupted and more susceptible to cavities. Studies from the CDC show that sealants can prevent 80% of cavities in the back teeth for two years. They can protect for up to ten years, though they should be checked by a dentist during regular check-ups to ensure they are still intact. If a sealant wears off or chips, it can be easily reapplied.