A new study in the journal Vaccine, reported by DrBicuspid on July 16, 2026, found that a caregiver's political affiliation predicted whether they were hesitant about childhood vaccines, but it did not predict whether they opposed fluoride for their children. Roughly 37 percent of the 833 caregivers surveyed opposed topical fluoride or community water fluoridation, and that opposition cut evenly across party lines. For families choosing dental care, the practical takeaway is that fluoride hesitancy is common and is not a red or blue issue, so decisions about your child's teeth are best made with your own dentist rather than assumed from politics.
What did the study actually find?
The study found that political affiliation had, in the authors' words, differential influences on childhood disease prevention: it was tied to vaccine attitudes but not to fluoride attitudes. Researchers led by Dr. Ana Luiza Peres Baldiotti at the University of Washington School of Dentistry in Seattle surveyed 833 caregivers and analyzed their answers with regression models. When they looked at fluoride, party affiliation showed no meaningful link to opposition. When they looked at childhood vaccines, it did.
Key facts and figures
- 833 caregivers were surveyed between November 2020 and September 2021 through five university or children's hospital clinics across four states, plus social media outreach (Vaccine, 2026).
- 37.7 percent of caregivers opposed topical fluoride, and 37.2 percent opposed community water fluoridation (Vaccine, 2026).
- Political affiliation was not significantly associated with fluoride opposition, with p greater than 0.05 (Vaccine, 2026).
- 41 percent of caregivers reported some childhood vaccine hesitancy (Vaccine, 2026).
- The sample skewed educated and higher income: 79.5 percent were women, the average age was 41, 87 percent held a college degree or higher, and 36 percent reported household income above 100,000 dollars (Vaccine, 2026).
How did politics split on fluoride versus vaccines?
Politics split sharply on vaccines and barely at all on fluoride. On vaccines, moderate caregivers (odds ratio 0.54) and liberal caregivers (odds ratio 0.51) were roughly half as likely to report hesitancy as conservative caregivers. On fluoride, no such pattern held: opposition to topical fluoride and to water fluoridation was spread across the political spectrum. The table below summarizes the contrast.
| Prevention type | Share of caregivers opposed or hesitant | Tied to political affiliation? |
|---|---|---|
| Topical fluoride | 37.7 percent opposed | No significant link |
| Community water fluoridation | 37.2 percent opposed | No significant link |
| Childhood vaccines | 41 percent hesitant | Yes, conservatives more hesitant |
Source: Vaccine, Volume 89, article 128900, 2026, as reported by DrBicuspid, July 16, 2026.
Why does fluoride hesitancy cross party lines?
The study does not fully explain why, but the pattern suggests fluoride worries are driven by something other than partisanship. Fluoride has been the subject of national headlines, state ballot fights, and federal reviews over the past two years, and concern appears to travel through those channels rather than through party identity. That matters for families because it means a neighbor's fluoride hesitation tells you little about how they vote, and it means your own comfort with fluoride is worth discussing directly with a clinician. Parents weighing fluoride can start that conversation at a routine visit with a family or pediatric practice such as 4th and Seneca Dental in Seattle, the same city where the study was run, or a dedicated children's office like Super Kids Dental in Riverside, California.
How common is fluoride opposition among parents, and is it growing?
In this sample, opposition was substantial: more than a third of caregivers pushed back on fluoride in some form. That is a large share for a preventive measure that dental and pediatric groups consider a cornerstone of cavity prevention. The survey was collected in 2020 and 2021, so it predates the most recent wave of fluoride policy activity. In 2026 alone, families saw the FDA move against ingestible prescription fluoride for young children and states debate local fluoridation rules, which you can read about in our coverage of the FDA pulling prescription fluoride supplements for young kids. Against that backdrop, the roughly 37 percent opposition figure is a useful baseline for how widespread parental questions about fluoride already were.
What should parents do about fluoride for their kids?
The most useful step is to bring your specific questions to your child's dentist rather than deciding from social media or assumptions about politics. Topical fluoride, applied in the office as a varnish or found in toothpaste, works locally on the tooth surface and is a different question from swallowed supplements or community water fluoridation. If you are unsure how much fluoride your child needs, ask the practice to assess your child's individual cavity risk, which depends on diet, home water source, and history of decay. A pediatric office such as Kensington Pediatric Dentistry and Orthodontics in San Diego can tailor a plan to your family rather than applying a one size fits all rule.
Who ran the study and how reliable is it?
The work was led by Dr. Ana Luiza Peres Baldiotti and colleagues at the University of Washington School of Dentistry and published in the peer-reviewed journal Vaccine. Its strengths are a defined sample of 833 caregivers and a formal regression analysis. Its limits are important too: the sample was heavily college-educated and higher income, the data were collected in 2020 and 2021 during the pandemic, and the authors stress these are associations, not proof of cause. As the research team put it, causality is likely impossible to establish indelibly from a survey of this kind.
"Political affiliation has differential influences on various modes of childhood disease prevention," the study authors concluded, urging that policymakers and clinicians "continue monitoring evolving attitudes toward both childhood vaccines and fluoride."
What does this mean for families right now?
For everyday decisions, the message is reassuring in its simplicity. Fluoride questions are common, they are not a partisan litmus test, and they are best answered case by case with a clinician who knows your child. If you have been putting off a conversation because you assumed it would be political, this study suggests otherwise. A short discussion at your next checkup can settle whether topical fluoride fits your child's risk level, and it keeps the focus where it belongs, on preventing cavities rather than on party lines.
Frequently asked questions
Does this study say fluoride is unsafe?
No. The study measured caregiver attitudes, not fluoride safety. It reports how many parents opposed fluoride and whether that opposition tracked with politics. It did not test whether fluoride is safe or effective.
Are conservative parents more against fluoride?
Not according to this study. Opposition to topical fluoride and community water fluoridation was spread across the political spectrum with no significant link to affiliation. The partisan pattern appeared only for childhood vaccines.
Is topical fluoride the same as the supplements the FDA acted on?
No. Topical fluoride is applied to the tooth surface as a varnish or in toothpaste and works locally. The FDA action in 2026 targeted ingestible prescription fluoride products meant to be swallowed by young children, which is a separate category.
How should I decide about fluoride for my child?
Ask your dentist to assess your child's individual cavity risk, factoring in diet, your home water supply, and any history of decay, then follow a plan tailored to that risk rather than a blanket rule.
Updated July 2026. Figures are drawn from the study published in Vaccine (2026) as reported by DrBicuspid and from the University of Washington School of Dentistry. This article is informational and is not a substitute for advice from your own dentist.
