Fluoride remains the cornerstone of preventive dentistry, and researchers have analyzed the many delivery methods of fluoride ...

When Tristen Boyer recently had a couple of cavities filled, her dentist suggested she get fluoride treatment afterward. She has Crohn’s disease, which puts her at increased risk for tooth decay.

Though high levels of fluoride in water or toothpaste may cause risks, this mineral is generally safe and even has the benefit of protecting against cavities.

Person at a tap, filling a glass of water. Public water systems add fluoride to drinking water to help strengthen teeth. This is considered one of the great public health achievements, credited as a ...

TUESDAY, Dec. 16, 2025 (HealthDay News) — For decades, fluoride in drinking water has helped protect kids’ teeth from ...

Fluoride helps protect teeth by making the hard outer layer—the enamel—more resistant to acid attacks by bacteria and sugars.