New York Times "Upshot" gets shot down by actual facts
It is true that the evidence is old, however, the writer goes on to say:
This statement is completely false.

Within the abstract, the authors conclude that "Even low levels of sugar consumption were associated with dental caries (tooth decay) despite the use of fluoride.
There is only one conclusion - the evidence overwhelmingly opposes the efficacy of fluoride.
Fluoride is labelled as a neurotoxin.