Fluoridation

Notes on water fluoridation and the Fluoride Deception video

I’d heard of the great water fluoridation fight but never looked into it. In the 60’s the John Birchers were saying it was a Commie plot to weaken America’s vital fluids or something of the sort. And it was parodied in the movie Dr. Strangelove…

Let’s start by bracketing things. Fluoride in water can’t be highly dangerous or people would have noticed. Not putting fluoride in water is not a risk-free choice–it prevents cavities. Cavities don’t just make your teeth fall out, they also increase risks of bacteria related heart disease, and the occasional person dies of a tooth abscess. So the question is, is there disease caused by fluoridation, and is it worse than the diseases caused by no fluoridation?

OK, let’s look at the video.
5:42 Suggests that the idea of adding fluoride to water supplies was to hide the dangers of for fluoride pollution or avoid responsibility for damage due to fluoride pollution. Doesn’t really make sense so far. Ah, reading in the history, when government regs made industry stop dumping fluoride in air and water, one thing they did with it was process out fluoride for water fluoridation. Doesn’t sound that damning, after all it would have been cheaper to dump it in a landfill.

~7:00-20:00 Fluoride air pollution can be bad. Some of the early fluoride researchers also worked on and perhaps had a part in the worst cover ups regarding industrial pollutants. What I’ve read of the tetraethyl lead story is appalling. The connection with the lead story is tenuous. Fluoridating water wasn’t a gold mine, I don’t see there being much pressure to push fluoridation back when it started.

21:30 The NRC report (below) discusses Waldbott’s results, concludes that some people are sensitive to typical water concentrations of fluoride and that it appears to be fairly rare.

From the NRC report, it doesn’t appear that the safety of water fluoridation was well-established, certainly nowhere near today’s standards, back when it began. It was safe by 1940’s standards, and had a clear benefit. I’ve probably got an extra tooth in my mouth due to it.

25:00 The NRC report discusses the Mullenix study. Calls it inconclusive, calls for more studies.

The video didn’t have much info. Here are the establishment reference sources:

CDC recommendations

Fluoride reduces cavities by 15-40%, depending on the study. The low figure is an estimate of the benefit of water fluoridation in a population that already uses fluoride toothpaste.

2006 National Academy report (the greybeards)

Here’s the meat! Water fluoridation is 1 mg / L, when the level hits 4 mg / L studies start seeing negative health effects. That’s a pretty narrow window between benefit and danger level, the smallest one for an environmental exposure I’ve run into. YMMV, I’m not an environmental toxicologist.

What hasn’t really been studied are neurotoxic effects of low level exposure. A few studies have turned up disturbing results. Check out the summary on page 205.

Interesting take on differences between Europe and US fluoridation, Pizzo et al. 2008

The bit about Europe in the video is misleading. Europe hasn’t avoided fluoride, it’s just mostly not in water, it’s in salt or toothpaste.

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