Interesting Anecdote

I heard this at the dentist's office recently:

In the "good" old days, Saturdays and weekdays after school were busy "drill and fill" hours for all dentists. That's when the adolescents came in after school for fillings in their rotted teeth. Good business model. Wealthy dentists.

However, in the 1960's, cities started adding fluoride to their water systems and, voila, the number of cavities started dropping. Seriously dropping. Some kids came through adolescence without a single cavity.

Then, God bless the French, everyone started drinking water out of plastic bottles, and the Law of Unintended Consequences took over. Bottled water has no fluoride.

Now cavities are becoming more and more prevalent in teenage teeth.

(That's what I was told.)