Flouride and Portland kids: news and analysis
January 11, 2011
Portland water has never been fluoridated, so most of the public concern about fluoride ingestion for kids in our city is imported from other hometowns (though we've had some past discussions about fluoride, here, here and here). I've done a little research on the topic in the past few years, helped by my dentist (an urbanMama reader who encourages even the most militant green among us to use fluoridated toothpaste because it's helpful when applied topically) and a great book, The Case Against Fluoride: How Hazardous Waste Ended Up in Our Drinking Water and the Bad Science and Powerful Politics That Kept It There. (phew.) So when I heard the news on NPR last week that the U.S. Department of Health and Human Services and the Environmental Protection Agency were working together to lower the maximum recommended level of fluoride in water -- to 0.7 mg per liter from its current maximum, 1.2 mg/L -- my first thought was that it wouldn't affect us, much.
Then I started reading through the articles in greater detail, compared with the information in the book I have now on my lap, and found some interesting leaps to conclusion and some great shifts from unexpected sources. For instance, the Centers for Disease Control and Prevention has long been the leading proponent of municipal water fluoridation, arguing that the benefit of preventing tooth decay overrode the risk of toxic effects -- and according to all government sources to date, the biggest risk is fluoridosis, or discoloration, streaks and spots on your tooth enamel. The NPR story begins: "Fluoride is a finicky friend to teeth. Too little of it, and you get cavities. Too much, and it starts to eat away and discolor the enamel of your pearly whites, " and quotes a dentist with the American Association of Pediatric Dentistry as saying, "There's a cosmetic risk, not a health risk."
There are a number of problems with these statements.
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