How Long Do Dental Sealants Last?

Dental sealants are a popular preventative solution to tooth decay and cavities, especially for children and teenagers. Dental sealants are thin, plastic layers applied to the chewing surfaces of the back teeth. These teeth are primarily used for chewing and as such have grooves and fissures in them, which help with the chewing process. They also are places where plaque and bacteria can grow because they are harder to clean. Dental sealants work to seal the grooves and fissures and create a smooth barrier that prevents the buildup of harmful materials in the teeth and as such prevents tooth decay and cavities. If you are considering dental sealants for you or your children you may have many questions about them, including how long they last. Read on to learn more about the lifespan of dental sealants and the factors that can shape how long they last.

The Average Lifespan of Dental Sealants

The materials used in dental sealants are durable and designed to withstand the everyday wear and tear from chewing and biting. Most sealants are made from resin-based compounds that bond directly to the tooth's surface. This provides a smooth, hard protective layer. The exact lifespan of a dental sealant will vary person to person, but in general, they can last anywhere from 5 to 10 years. This depends on several factors such as:

  • Oral Care Routine: Maintaining a proper oral care routine is the biggest factor in determining the lifespan of the dental sealants. Brushing at least twice a day and flossing regularly helps prevent plaque buildup and bacteria that could damage the sealant. The cleaner the surface, the longer the sealants will stay intact.
  • Diet and Habits: Diet plays a significant role in the longevity of dental sealants. Hard or sticky foods, such as candies or ice, can cause the sealants to wear down faster. Additionally, habits like teeth grinding or clenching can place additional stress on the sealants and lead to premature damage.
  • Location of the Sealant: The more pressure a tooth experiences during chewing, the more likely the sealant will need to be replaced sooner.
  • Age and Tooth Development: Children and teenagers often benefit the most from dental sealants, as their molars and premolars are more vulnerable to cavities. As the teeth fully mature and their surfaces become harder, the sealants may last longer.

Can You Replace Dental Sealants if They Wear Down?

Dental sealants can be replaced. It is important to monitor their condition regularly and see your dentist for regular checkups so they can monitor them as well. When the sealants have reached the end of their lifespan, they are no longer fully protecting your teeth and should be replaced. The procedure to replace dental sealants is just as easy as the procedure to install them in the first place.

What Does This Mean for Me?

If you have dental sealants or are considering getting them, you should know that they are not going to last forever. They will eventually need replacing. Your oral hygiene and lifestyle habits will determine how long they last though. If you have specific questions about your habits or lifestyle and how it might impact the dental sealants, speak with your dentist today.

What Are Dental Sealants?