As the song says,
Repetition is very, very, very, very
good, good, good,
very, very good!
In 2009 :
Five billion gallons of bottled water were consumed in 2000, an increase of more than 200 percent from a decade earlier. Whether consumers drink more bottled water because it is an alternative to soda, or because it is convenient to do so is unclear, but one thing is certain: they are missing out on the valuable fluoride found in tap water, which helps to protect teeth from cavities, according to a study published in the January/February 2009 issue of General Dentistry, the Academy of General Dentistry’s (AGD) clinical, peer-reviewed journal. [emphasis added]
In 2011 :
Now here we are in 2013 :
Nearly 60% of parents and other guardians of children say they are more likely to give children bottled water than tap water, potentially depriving kids of fluoride that is critical to good oral health. [emphasis added]
And while such folks fret (as if fluoride were a nutrient ), they leave so many things unexplained:
- The benefit of swallowing it, since fluoride’s main effects are topical, after all.
- Why, if fluoridation works so well, half a population may still suffer from decay .
- How such modest benefits outweigh the risks  of fluorosis, lower IQ, developmental problems and other pathologies – not to mention the environmental damage.
- How the exact same concentration of fluoride can be suitable for every person, regardless of age, weight, caries risk or any other factor.
- What makes fluoride such a special drug that it may be administered without patient consent.
Even conventional practitioners agree: few Americans are lacking access to fluoride . It is readily available in abundance. In some stores, you may find dozens of varieties of toothpaste and not one without fluoride as an ingredient. Many mouthwashes contain it, too. Those who want it can have their fill.
Why should those who don’t want it be forced to have it, too?
“It’s very important that children get fluoride on their teeth daily to prevent tooth decay,” said Dr. Bill Kohn, Delta Dental’s vice president for dental science and policy. “Fluoride is absorbed into the tooth enamel, making it stronger and more resistant to decay.”
Oh, really? 
In a study that the authors describe as lending credence to the idiom, “by the skin of your teeth,” scientists are reporting that the protective shield fluoride forms on teeth is up to 100 times thinner than previously believed. It raises questions about how this renowned cavity-fighter really works…