Associated Press
This June 29, 2011 shows Portland's reservoir No. 6 in Mount Tabor Park in Portland, Ore. Portland is the largest city in the United States that has yet to approve fluoridation to combat tooth decay, a distinction set to change at a City Council meeting on Wednesday, Sept. 12, 2012. Mayor Sam Adams and two city commissioners have announced their support, ensuring a majority on the five-member panel. Many in Portland and the state at large have long opposed public fluoridation, saying it's unsafe and violates an individual's right to consent to medication. While 73 percent of the U.S. population drinks water treated with fluoride, the rate is less than 25 percent in Oregon. (AP Photo/Rick Bowmer)

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