The author of the quoted article makes his best attempts to show the benefits of fluoridation, but the statistics do not confirm these benefits. Make sure to scroll through the article to get to the sentence that inspired the above title. Too lazy to read all the way down that article? Well, you're in luck, because I'll quote it below.
Source: The Globe and Mail
“Fluoridation is no longer effective,” contends Hardy Limeback, head of the preventive dentistry program at the University of Toronto, who says adding the chemical to water is “more harmful than beneficial.”
Source: The Globe and Mail