A fact check on water fluoridation

The debate over adding fluoride to water has lasted almost a lifetime in places like Portland, Ore., where voters last year rebelled against their city's fluoridation plans. A Mary Otto post on the AHCJ website debunks some of the opposition's evidence: "Numerous studies credit water fluoridation efforts with major reductions in tooth decay during the second half of the 20th century … Yet in spite of reams of scientific evidence, debate and fear remain in some places."