Through the lips and past the gums, and into the stomach in seconds.
It’s a drink of water, plus a little hydrofluorosilicic acid: a chemical so corrosive and toxic, it carries a warning label. Since 2002, the city has been injecting it into the water supply, in an effort to stem tooth decay.
“The one, clear, proven way of keeping people’s teeth healthier, reducing decay is community water fluoridation,” said Dr. Maria Lopez-Howell, a San Antonio dentist and spokeswoman for the American Dental Association.
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