Added to our drinking water: A chemical more toxic than lead | kens5.com San Antonio:

After 9 years and $3 million of adding fluoride, research shows tooth decay hasn’t dropped among the poorest of Bexar County’s children. It has only increased—up 13% in 2010, the latest date that data was available.

One out of two children in the Head Start program who were checked for cavities had some decay last year.