Mistress,
ADA and dentists stand to loose big on this, not to mention the dental care and toothpaste industries themselves. Fluiridation is among the treatments used by dentists
http://www.ada.org/public/topics/fluoride/index.asp
There have been many studies done in other places as well
http://www.mercola.com/article/links/fluoride_links.htm so yes, its a fluoride conspiracy indeed.