Fluoridation is a benefit

Fluoride Misinformation: What Dentists Need to Know

May 23, 2025 by Mary Swift, DDS - TDA Community Water Fluoridation Committee Chairman, DCDS Member
As misinformation about community water fluoridation (CWF) spreads—whether in patient conversations or public forums—dentists must be prepared to respond with facts. A study by the Oral Health Coalition and Utah Dental Association found 78% of anti-fluoride arguments are misleading or false.

Fluoride opponents often twist scientific studies and flood social media with disinformation. During a Dallas City Council meeting, they even cited the same study we used—misinterpreting its findings. Fortunately, the council saw through it. But not all decision-makers will, which is why your informed voice is critical.

With over 80 years of research confirming fluoride’s safety and effectiveness, we have science on our side. Below are common myths about fluoridation—and how to counter them:

Myth: Europe has banned fluoride.
Fact: Fluoridation is used globally, including in Europe, Asia, and Australia. Over 400 million people benefit worldwide.

Myth: Fluoride intake is uncontrollable and toxic.
Fact: The average intake is well below toxic levels. You’d need to drink 120 gallons in one sitting for harm.

Myth: It causes cancer or bone disease.
Fact: No evidence supports a link between fluoride and bone cancer or skeletal fluorosis.

Myth: Fluoride is the most dangerous chemical in water treatment.
Fact: It’s comparable in safety to other common water treatment chemicals and is used in much lower concentrations than chlorine.

Myth: There’s no data comparing fluoridated and non-fluoridated areas.
Fact: Decades of studies—including Cochrane Reviews—prove its effectiveness. Decay increases where fluoridation is stopped.

Myth: It lowers IQ.
Fact: U.S. fluoridation levels (0.7 mg/L) are safe. IQ studies often focus on regions with much higher levels.

Myth: It’s mass medication.
Fact: Fluoride is a public health additive, like iodine in salt or vitamin D in milk.

Myth: It removes individual choice.
Fact: Alternatives exist (filters, bottled water), but children—who benefit most—can’t choose on their own.

Myth: Pregnant or nursing women should avoid it.
Fact: Leading health organizations support fluoridated water during pregnancy and breastfeeding.

Myth: Supplements are better.
Fact: Supplements are costly and poorly used. CWF ensures equitable protection.

Myth: It’s too expensive.
Fact: Every $1 spent saves at least $20 in dental treatment costs.

Dentists are trusted messengers. Your voice matters in this debate. Be informed, speak confidently, and help protect this proven public health measure.

Resources: ADA Fluoridation Information