August 18, 2026
As the school year begins, Anthem Dentistry in Anthem, AZ explains how dental sealants and fluoride help protect children's teeth from cavities.
Backpacks are packed, new schedules are set, and kids are heading back to the classroom. A new school year is also a great time to think about protecting growing smiles. Along with brushing and flossing at home, two preventive tools, dental sealants and fluoride, can give children's teeth an extra layer of defense against cavities.
What Are Dental Sealants?
Sealants are thin, protective coatings painted onto the chewing surfaces of the back teeth. Molars have deep grooves where food and bacteria like to hide, and those grooves can be hard to reach with a toothbrush. A sealant fills in the grooves and creates a smoother surface that is easier to keep clean.
Applying sealants is usually quick and comfortable. The tooth is cleaned and dried, the sealant is painted on, and then it is hardened, often with a special light. No drilling or numbing is typically needed. Sealants are often recommended soon after the permanent molars come in, but they can benefit some teens and adults, too.
How Fluoride Strengthens Enamel
Fluoride is a natural mineral that helps make enamel more resistant to acid attacks. It can also help repair very early weak spots before they turn into cavities. Kids get fluoride from toothpaste and, in many communities, from tap water. Your dentist may also recommend a professional fluoride varnish, which is brushed onto the teeth during a checkup.
Back-to-School Habits for Healthy Teeth
- Help younger children brush until they can do a thorough job on their own
- Pack water in lunchboxes instead of juice or sports drinks
- Choose tooth-friendly snacks such as cheese, yogurt, crunchy vegetables and fruit
- Keep brushing routines consistent, even on busy school mornings
- Add a mouthguard to the gear bag for kids who play sports
Frequently Asked Questions
Do sealants replace brushing and flossing?
No. Sealants protect the chewing surfaces of the back teeth, but they do not cover the spaces between teeth. Daily brushing and flossing are still essential.
How long do sealants last?
Sealants can often last for several years. They are checked during regular dental visits and can be touched up or reapplied if they wear down.
Is fluoride safe for children?
When used as directed, fluoride is widely considered safe and helpful for children's teeth. Use the right amount of toothpaste for your child's age, supervise brushing, and teach kids to spit rather than swallow.
A back-to-school checkup is a great way to start the year on the right foot. Contact Anthem Dentistry in Anthem, AZ to schedule your child's visit and talk with our team about whether sealants or fluoride are a good fit.

