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What is Fluoridation?

Fluoridation is the process of adjusting the amount of fluoride in public water supplies to help prevent tooth decay. Backed by decades of research, this safe, effective, and affordable public health measure strengthens tooth enamel and protects communities from cavities—especially those with limited access to dental care.

 

Fluoride is nature's cavity fighter.

It is found in rocks, soil, and water. It protects your teeth by:

  • Strengthening tooth enamel (the hard outer layer)
  • Rebuilding (remineralizing) weakened enamel




How Fluoride Acts on Teeth


Why Fluoride in Our Community Water is Good





How Does It Work?


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Before teeth break through the gums, fluoride taken in from foods, beverages, and dietary supplements helps strengthen teeth.  

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After teeth erupt, the application of fluoride to your teeth through brushing, and the use of other dental products, provides a topical benefit.  

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The fluoride taken in from foods and beverages also becomes part of saliva, constantly bathing teeth with tiny amounts of fluoride that help rebuild weakened tooth enamel. 




Frequently Asked Questions


Where does it come from?

Fluoride is a naturally occurring mineral. Approved additives for treating water include sodium fluoride, sodium fluorosilicate, and fluorosilicic acid. These additives are required to be “water grade,” and they must meet standards established by American Waterworks Association and NSF International. These standards are endorsed by the American National Standards Institute.


Is it effective?

Yes! Fluoride prevents 1 in 4 Cavities and saves money! For every $1 on water fluoridation, the average return on investment is $20. This return is the result of better oral health in communities with water fluoridation, and it represents savings on dental care.


Is it safe?

Yes! Studies show no links between recommended fluoride levels and health issues like cancer, thyroid problems, or IQ decline. Fluoride even helps rebuild weakened tooth enamel! 

EPA’s maximum limit = 4 ppm
Optimal fluoridation = 0.7 ppm




Myth or Fact?


Tooth decay just isn’t a problem in the United States. (Myth or Fact)


Myth.

Tooth decay remains a major chronic problem in the United States. The CDC reports that by age 6-8 nearly 1 in 5 children had at least one untreated cavity, and more than 1 in 10 adults aged 65 and older have lost all their teeth. According to the American Dental Association’s Health Policy Institute, 1 in 4 low-income adults in Georgia say their mouth and teeth are in poor condition, and 70% believe they will lose some teeth at some stage. The primary reason most people do not visit the dentist is cost.  

Water fluoridation is banned in Europe. (Myth or Fact)


Myth.

Water fluoridation is not banned in Europe. Many European countries choose to use other methods of fluoride enrichment to help fight tooth decay such as milk, salt, or bottled water fluoridation, and 14 European countries have not yet chosen to invest in fluoridating their water. Other countries have higher naturally occurring levels of fluoride in their water, and they choose not to fluoridate. 

Some states have high levels of tooth decay despite high levels of water fluoridation. (Myth or Fact)


Fact.

Water fluoridation plays a role in decay prevention, but many other things influence the prevalence of tooth decay, such as how often people make it to the dentist, at home oral hygiene habits, access to nutritious foods, smoking status, age, etc. Comparing 2 states with the same level of access to fluoridated water also requires comparing other characteristics to fully understand why different rates of tooth decay exist.  

There are better ways of delivering fluoride than adding it to drinking water. (Myth or Fact)


Myth.

Different countries and jurisdictions have experimented with methods of providing enough fluoride to people, but water fluoridation remains the most cost-effective option. Cost is of particular concern for people in low-income households, who may choose to save money by avoiding the purchase of additional dental hygiene products or nutritional supplements. Meanwhile, community water fluoridation distributes the cost of delivering fluoride efficiently and fairly.  

Warning labels on toothpaste show fluoride is dangerous. (Myth or Fact)


Myth.

Toothpaste has roughly 1,000x as much fluoride per milligram as drinking water, and children who swallow toothpaste may be at increased risk of developing mild dental fluorosis, a cosmetic condition which causes faint white streaks on teeth but does not cause pain or impair function. The FDA has established warning labels for several over-the-counter products it has deemed safe and effective.  

Community water fluoridation is a freedom of choice issue. (Myth or Fact)


Fact.

Fluoridating water does not take away a person’s choice, but it does give a choice to people whose means might prevent them from having a chance to decide at all. Fluoride exists naturally in virtually all water supplies, and communities in Georgia may already choose whether to fluoridate their water. Water with a lower level of fluoride is almost always relatively affordable and available for purchase in the form of bottled or canned water. Not everyone can easily afford to have extra cavities filled. It is important to remember that community water fluoridation, or the lack of it, effects everyone in a community, and members of the community pay for a lack of community water fluoridation with worse dental health, unnecessary emergency room visits, missed work and school days, and increased Medicaid spending.  

Water fluoridation is like forcing people to take a medication. (Myth or Fact)


Myth.

Fluoride is a nutrient naturally present in virtually all water supplies, and some areas have more while others have less. Fortifying foods and beverages with specific vitamins and minerals is a common practice done to help improve people's health. Iodized salt and vitamin D in milk are 2 other common examples used by almost everyone in the United States.  

Fluoridated water isn’t safe for babies and small children. (Myth or Fact)


Myth.

As with all nutrients, the appropriate amount of fluoride intake varies with age and weight. Using fluoridated water to reconstitute baby formula may slightly increase a child’s risk of mild dental fluorosis, a cosmetic condition which causes faint white streaks on teeth but does not cause pain or impair function, but water fluoridated at optimal levels helps improve a child’s oral health over the course of their lifetime.  

 

Want to Know More?

Learn more about community water fluoride and other oral health topics through these resources.