Sunday, March 8, 2026

Calgary’s fluoride reinstatement serves as cautionary story for U.S., Quebec

A 2021 study found that 64.8 per cent of Calgary children had one or more cavities in their baby teeth, compared to 55.1 per cent in Edmonton, where water remains fluoridated.
A 2021 research discovered that 64.8 per cent of Calgary youngsters had a number of cavities of their child enamel, in comparison with 55.1 per cent in Edmonton, the place water stays fluoridated. (iStock)

After 14 years with out fluoride in its water provide, Calgary will formally reintroduce the mineral on Monday, June 30.

“Beginning Monday, June 30, fluoride will likely be reintroduced into Calgary’s ingesting water,” the Metropolis of Calgary’s Water Companies division confirmed in a press release.

“Well being Canada, Alberta Well being, and Alberta Well being Companies help the follow of Neighborhood Water Fluoridation as a secure and efficient public well being measure to stop and cut back tooth decay, particularly these most susceptible and with out entry to dental care,” the assertion added.

The transfer follows a 2021 plebiscite throughout Calgary’s municipal election, wherein 62 per cent of voters supported reintroducing fluoride to the town’s water system. Metropolis council subsequently directed administration to proceed with the mandatory infrastructure upgrades at Calgary’s two water therapy vegetation.

“Calgary confirmed us the way it could possibly be carried out.” Montreal doctor Dr. Christopher Labos.

The choice was backed by analysis. In August 2021, the College of Calgary’s Cumming Faculty of Drugs revealed a research evaluating dental well being outcomes amongst Grade 2 college students in Calgary and Edmonton. The research discovered that 64.8 per cent of Calgary youngsters had a number of cavities of their child enamel, in comparison with 55.1 per cent in Edmonton, the place water stays fluoridated. The findings constructed on earlier analysis suggesting a hyperlink between fluoride elimination and elevated charges of early childhood caries.

Calgary and fluoride: A timeline

  • 1957, 1961, 1966, 1971 – Calgarians vote in opposition to fluoridation in 4 plebiscites.
  • 1989 – A fifth plebiscite ends in help for fluoridation.
  • 1991 – Fluoride is added to Calgary’s water at 1.0 mg/L.
  • 1998–1999 – Following a evaluate, the extent is lowered to 0.7 mg/L. A plebiscite throughout this era reveals 55 per cent help.
  • 2011 – Metropolis council votes to discontinue fluoridation.
  • 2021 – A plebiscite sees 62 per cent help for reinstating fluoride.

(Timeline from Metropolis of Calgary)

A broader debate

Calgary’s expertise is more and more cited in broader debates over water fluoridation. In the US, Well being Secretary Robert F. Kennedy Jr., a vocal critic of fluoridation, has known as it “industrial waste” and linked it to well being issues, together with lowered IQ in youngsters. In April, Florida grew to become the second U.S. state to ban water fluoridation, following Utah.

Nevertheless, a 2024 research revealed in JAMA Well being Discussion board warned that eradicating fluoride from neighborhood water techniques might result in elevated tooth decay in youngsters and an estimated $9.8 billion in further dental prices over 5 years. The research cited Calgary for instance of a metropolis that reinstated fluoridation in response to rising dental illness after its elimination in 2011.

Learn associated hyperlink: Fluoride: When, the place, why

Learn associated hyperlink: Right here’s the place Canadian specialists stand on fluoridating ingesting water

Classes for Montreal

Calgary’s case has additionally been referenced in Montreal, the place the town started phasing out fluoridation on Nov. 21, 2024, on the Pointe-Claire and Dorval water therapy vegetation. The choice, made by the Agglomeration Council, will stay in impact till current fluoride provides are depleted.

“We’ve had fluoride out of the water for over 10 years. That was 10 years we might monitor in opposition to different cities,” Calgary metropolis councillor Gian-Carlo Carra instructed the Montreal Gazette in a June 8 interview. “The information reveals that it helps.”

Montreal doctor and science communicator Dr. Christopher Labos, who wrote concerning the challenge previous to the town’s choice, echoed that sentiment. “Many individuals in Montreal aren’t conscious of it, and sadly the explanations for eradicating fluoride had been largely monetary and presumably politically motivated by occasions south of the border,” he instructed Oral Well being Group.

Kennedy gave Montreal citizen ‘ethical help’

A March 2024 report from Montreal’s water division famous that the reconsideration of fluoridation started with a 2020 citizen petition led by Ray Coelho, a former candidate for the now-defunct Canadian Nationalist Social gathering. CBC reported in November that Coelho mentioned he had spoken with Kennedy a number of instances, and that the U.S. well being secretary congratulated him in a textual content message after the town’s plan grew to become public the earlier month.

“He gave me ethical help, which is sweet,” the CBC quote Coelho as saying.

In the meantime, Lachine borough Mayor Maja Vodanovic instructed Oral Well being Group that the choice to finish fluoridation on the Dorval and Pointe-Claire vegetation—serving about 5 per cent of Montreal’s water provide—was “solely guided by operational and financial elements.”

Presently, the one municipality in Quebec that fluoridates its water is Saint-Georges, within the Chaudière-Appalaches area, serving about 33 000 folks.

Regardless of Montreal’s stance, Labos stays optimistic. “Calgary confirmed us the way it could possibly be carried out,” he mentioned. “Each Montreal and Quebec’s provincial public well being departments help fluoridation, and Quebec has a program to subsidize its implementation. It can merely take the political will to make it occur.”


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