August 4, 2026
Learn how dental sealants help protect back teeth from cavities and who may benefit this school year, from Dental Innovations in Mesa, AZ.
As backpacks get packed and school schedules fill up, back-to-school season is a great time to think about cavity prevention. Brushing and flossing do much of the work, but the deep grooves on the chewing surfaces of back teeth can be hard to clean, even for careful brushers. Dental sealants are one tool that may help protect those hard-to-reach spots.
How Sealants Work
A sealant is a thin, tooth-colored or clear layer that bonds to the biting surfaces of molars and premolars. These teeth have natural pits and grooves where food and bacteria like to hide. A sealant fills in those grooves and creates a smoother surface that's easier to keep clean, acting as a barrier between the enamel and the debris that can lead to decay.
Who Can Benefit From Sealants?
Sealants are often recommended for children and teens, since the first adult molars usually come in around age six and the second molars around age twelve. Sealing these teeth soon after they appear helps protect them during the years when cavities are common. Some adults with deep grooves and no fillings in their back teeth may benefit as well. Your dentist can tell you whether sealants make sense for your family.
What to Expect During the Process
Placing sealants is typically quick and usually doesn't require numbing or drilling. The steps often look like this:
- The tooth is cleaned and dried.
- A solution is applied to help the sealant bond, then rinsed off.
- The liquid sealant is painted onto the grooves of the tooth.
- A special light may be used to help it harden.
Most children can eat and drink normally right after the appointment.
Frequently Asked Questions
How long will sealants hold up?
With good care, they often stay in place for several years. Your dentist will check them at regular visits and can repair or reapply them if they wear down or chip.
Do sealants replace brushing and flossing?
No. Sealants protect the chewing surfaces, but they don't cover the sides of the teeth or the spaces between them. Daily brushing with fluoride toothpaste and flossing are still essential.
Can a sealant go over a cavity?
Sealants are mainly used on healthy teeth or on grooves showing only the earliest signs of change. If a tooth has an established cavity, your dentist will talk with you about treating it first.
Starting the school year with a healthy smile helps kids focus on learning instead of toothaches. Schedule a back-to-school checkup with Dental Innovations in Mesa, AZ, and ask our team whether sealants are a good option for your child.