Misinformation campaigns increasingly target the cavity-fighting mineral, prompting communities to reverse mandates. Dentists are enraged. Parents are caught in the middle.

Misinformation campaigns increasingly target the cavity-fighting mineral, prompting communities to reverse mandates. Dentists are enraged. Parents are caught in the middle.

The culture wars have a new target: your teeth.

Communities across the U.S. are ending public water fluoridation programs, often spurred by groups that insist that people should decide whether they want the mineral — long proven to fight cavities — added to their water supplies.

The push to flush it from water systems seems to be increasingly fueled by pandemic-related mistrust of government oversteps and misleading claims, experts say, that fluoride is harmful.

“The anti-fluoridation movement gained steam with Covid,” said Dr. Meg Lochary, a pediatric dentist in Union County, North Carolina. “We’ve seen an increase of people who either don’t want fluoride or are skeptical about it.”

There should be no question about the dental benefits of fluoride, Lochary and other experts say. Major public health groups, including the American Dental Association, the American Academy of Pediatrics and the Centers for Disease Control and Prevention, support the use of fluoridated water. All cite studies that show it reduces tooth decay by 25%.

    • Jimmyeatsausage@lemmy.world
      11·
      6 months ago

      You would kill yourself drinking too much water long before you’d have to worry about fluoride toxicity in the US. Part of our water treatment protocols also include reducing fluoride levels when they’re naturally too high.

    • undercrust@lemmy.ca
      83·
      6 months ago

      Dude, that’s for the odds someone might have hypothyroidism, not at all related to toxicity.

      And as noted by the authors:

      “Hence, the application of standard household water purification (such as reversed osmosis, electro dialysis, activated carbon filter, and other adsorption/ion-exchange methods) is recommended for patients with hypothyroidism since they have a higher consumption of drinking water. The purification systems can help remove fluoride that interferes with thyroid functions.”

      So, if you have a family history of hypothyroidism, and you care at all about trying to avoid this incredibly common and easily treatable issue; use a water filter. It probably won’t help since family history and regular exercise are much more highly correlated with the incidence of hypothyroidism, but sure, why not.

      Also, and this is fun, they conveniently ignore the fact that the people drinking the most water (5+ cups group) have a lower adjusted-odds-ratio (OR) of hypothyroidism.

      How about the part where the level of fluoride in the water being in the higher end of the spectrum (0.3-0.5 mg/L) gives you a *checks notes* oh yeah, 3.4% higher incidence rate of hypothyroidism. Right.