In 1945, Grand Rapids, Michigan, became the first city in the world to add fluoride to its public water supply. That bold step, grounded in public health science, marked the beginning of one of the most effective preventive dental health measures in history. The dramatic reduction in tooth decay that followed was not a coincidence. It was the result of evidence-based public policy.

Today, nearly 80 years later, water fluoridation continues to be recognized by the Centers for Disease Control and Prevention (CDC) as one of the 20th century's greatest public health achievements. And yet, this trusted practice faces renewed scrutiny.

The American Dental Hygienists' Association (ADHA), alongside more than 250 other health and advocacy organizations, has reaffirmed its strong support for community water fluoridation. Their position is based on decades of scientific research showing that fluoride at recommended levels is both safe and effective in reducing dental caries across populations. Removing it from public water systems, the AHDA says, would increase health disparities and dental disease, especially among underserved communities.

As dental hygienists, our commitment to optimal patient care includes advocating for preventive, science-based practices. Water fluoridation is one such practice, and this moment calls on us to educate, support, and lead with facts.