Even though I don't live in Calgary, as someone who has the only significant known side-effect of fluoridation (fluorosis), I wanted to chime in on the side of fluoridation. I got it when I was young from water that was naturally high in flouride, and in my 40 years I've had a grand total of 3 cavities. I don't eat a lot of sugar, but I've also lived for the last 20 years with water that isn't fluoridated (or chlorinated, but that's another story). Having the relatively high dose of fluoride in the water I drank as a small child did cause some of my teeth to be stained with yellowish stripes - that's all fluorosis is. I often wish my parents hadn't made me get some of them bonded when I was a teen, as the caps have aged they actually look worse than the fluorosis did. I know there's this fad for having unnaturally white teeth these days, but really fluorosis is a pretty minor side effect when the benefit is not having to have annual root canals and a mouth full of fillings.
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