She Found Fluorine Affected Dental Health

We can thank University of Arizona researcher Margaret Cammack Smith for the addition of fluorine to much of the nation's drinking-water supply - a development that the U.S. Centers for Disease Control and Prevention calls "one of the 10 great public health achievements of the 20th century."

That's despite the fact that Smith crusaded against putting fluoride compounds in water.

Smith, an agricultural chemist at the Agricultural Research Station in Tucson, performed the field studies and laboratory experiments that proved a link between levels of fluorine and the integrity of tooth enamel.

She was searching for the cause of "mottled teeth" in children of several Arizona communities in the 1930s. She settled on St. David in Cochise County, where she found a large population of children with pitted and discolored teeth, linking it to water with fluorine levels of 1.6 to 4.0 parts per million.

Read the rest of this August 6 Arizona Daily Star article at the link below.

Released date: 
Aug 8 2012