Fluoride is one of the most effective ways to help prevent tooth decay. It is a natural mineral found in many foods and water sources. For more than 50 years, its benefits have been widely recognized and supported by dental and medical organizations.
How Fluoride Works
Topical fluoride helps strengthen teeth after they erupt by absorbing into the outer enamel surface. This makes teeth more resistant to cavities. You get topical fluoride from products such as toothpaste, mouth rinses, and gels. Dentists and dental hygienists often recommend professional fluoride treatments twice a year during routine dental checkups.
Systemic fluoride helps strengthen both erupted teeth and teeth that are still developing below the gums. It comes from foods, drinking water, and fluoride supplements. These supplements may be available as drops or tablets and can be prescribed by your dentist or physician. Fluoride drops are often recommended for infants, while tablets may be better for older children and teenagers. It is important to monitor how much fluoride a child receives. Too much fluoride during tooth development can lead to fluorosis, which may appear as white spots on the teeth.
Although many people get fluoride through food and water, some may need additional protection against decay. Your dentist or dental hygienist may recommend home or professional fluoride treatments if you have:
- Deep pits and grooves on the chewing surfaces of your teeth
- Exposed or sensitive tooth roots
- Fair to poor oral hygiene habits
- Frequent sugar or carbohydrate intake
- Limited exposure to fluoride
- Reduced saliva flow due to a medical condition, treatment, or medication
- A recent history of tooth decay
Keep in mind that fluoride alone cannot prevent cavities. For the best protection, brush at least twice a day, floss regularly, eat balanced meals, limit sugary snacks, and visit your dentist on a regular schedule.