We Know What Works, Why it Works, And How it Works.
The simple fact is that the benefits of fluoridated water have been shown to reduce dental decay by 25% over a person’s lifetime. This includes both adults and children.
Concerned about risks? There are no valid, peer-reviewed scientific evidence of any adverse health effects of optimally fluoridated water.
What is Fluoride?
Fluoride is a mineral that exists naturally in water supplies. Fluoride has been shown to reduce the rate of tooth decay when added to toothpaste or water.
How does Fluoride get in our Water?
As groundwater flows over rocks, it picks up fluoride ions which originate from those rocks. These fluoride ions are what is commonly referred to as being “naturally occurring” fluoride. The fluoride ions added during fluoridation are identical to these “naturally occurring” fluoride ions.
What is Water Fluoridation?
Water fluoridation is the simple adjustment of existing fluoride in water to a level that helps prevent dental decay. Local water systems typically choose from one of three forms of fluoride to engage in fluoridation, and the Centers for Disease Control and Prevention (CDC) provides detailed information on these types of fluoride.
What are the Benefits and Risks of Fluoridated Water?
Benefits: The benefits of fluoridated water have been shown to reduce dental decay by 25% over a person’s lifetime. This includes both adults and children.
Risks: There are no valid, peer-reviewed scientific evidence of any adverse health effects of optimally fluoridated water.
Watch + Learn
Why is Fluoride Good for Teeth?
Fluoride in the Water Isn’t Going to Hurt You
Fluoridated Water – Tap Into It!
Facts You Need to Make a Healthy Choice
Why The Government Puts Fluoride In Our Water
Time to Brush: Tips for Parents of Young Children
Chemistry of Fluoridation
We frequently get asked about the chemical composition of fluoride as it appears in community water fluoridation. Here you will find some straightforward explanations about how fluoride ions interact with water.
Community Water Fluoridation Reference Manual
Fluoridation is the single most important commitment a community can make to its children and to future generations.
-Dr C. Everette Koop, Surgeon General of the United States, 1981-1989
Benefits vs Claims of Antis
Dr. Johnny Johnson, Jr, DMD, MS, explores the benefits vs claims made by those opposed to water fluoridation.
The Center for Disease Control frequently releases reports about fluoridation. Find 6 of our favorites below. Click the titles to read the full CDC reports.
Community water systems in the United States use one of three additives for water fluoridation. Decisions on which additive to use are based on cost of product, product-handling requirements, space availability, and equipment.
These statistics were prepared using water system data reported by states to the CDC Water Fluoridation Reporting System as of December 31, 2012, and the US Census Bureau state population estimates for 2012.
These statistics were prepared using water system data reported by states to the CDC Water Fluoridation Reporting System as of December 31, 2014, and the U.S. Census Bureau state population estimates for July 2014. Revised July 2016.
These manuals are part of the protocol for the National Health and Nutrition Examination Survey (NHANES), conducted by the National Center for Health Statistics.
Testimonials from prominent scientists
See what the recent US Surgeon Generals are saying about the benefits of fluoridation.
Fluoridation is the single most important commitment a community can make to its children and to future generationsDr. C. Everette Koop
With the development of fluoridated drinking water and dental sealants, Americans are less likely to experience tooth loss and gingivitis by middle age … Community water fluoridation continues to be a vital, cost-effective method of preventing dental [cavities].Dr. Regina Benjamin
Water fluoridation has helped improve the quality of life in the United States by reducing pain and suffering related to tooth decay, time lost from school and work, and money spent to restore, remove or replace decayed teeth.”Dr. Richard Carmona
Statements from our Partners
Click the icons below to see statements about Fluoridation from organizations around the world.
We continuously add links to the latest research concerning fluoridation.
These results expand our understanding of caries epidemiology under CWF cessation conditions and reaffirm that optimal CWF exposure prevents dental decay. These findings can offer fiscal estimates of the cost burden associated with CWF cessation policies and help decision-makers advance oral health, prevent dental caries, and promote equity in oral health outcomes.
synopsis bashash 2018 prenatal fluoride and...
Fluoridation of America’s drinking water was among the great public health achievements of the 20th century. Yet there is a paucity of studies from the past 3 decades investigating its dental health benefits in the U.S. population. This cross-sectional study sought to evaluate associations between availability of community water fluoridation (CWF) and dental caries experience in the U.S. child and adolescent population. County-level estimates of the percentage of population served by CWF (% CWF) from the Centers for Disease Control and Prevention’s Water Fluoridation Reporting System were merged with dental examination data from 10 y of National Health and Nutrition Examination Surveys (1999 to 2004 and 2011 to 2014). Dental caries experience in the primary dentition (decayed and filled tooth surfaces [dfs]) was calculated for 7,000 children aged 2 to 8 y and in the permanent dentition (decayed, missing, and filled tooth surfaces [DMFS]) for 12,604 children and adolescents aged 6 to 17 y. Linear regression models estimated associations between % CWF and dental caries experience with adjustment for sociodemographic characteristics: age, sex, race/ethnicity, rural-urban location, head-of-household education, and period since last dental visit. Sensitivity analysis excluded counties fluoridated after 1998. In unadjusted analysis, caries experience in the primary dentition was lower in counties with ≥75%CWF (mean dfs = 3.3, 95% confidence limits [CL]=2.8, 3.7) than in counties with <75%CWF (mean dfs =4.6, 95%CL=3.9, 5.4), a prevented fraction of 30% (95%CL = 11, 48). The difference was also statistically significant, though less pronounced, in the permanent dentition: mean DMFS (95%CL) was 2.2 (2.0, 2.4) and 1.9 (1.8, 2.1), respectively, representing a prevented fraction of 12% (95%CL=1, 23). Statistically significant associations likewise were seen when %CWF was modeled as a continuum, and differences tended to increase in covariate-adjusted analysis and in sensitivity analysis. These findings confirm a substantial caries-preventive benefit of CWF for U.S. children and that the benefit is most pronounced in primary teeth.