Does Taiwan put flouride in the water supply?
Before everyone started drinking bottled water, US put flouride in the water supply to improve the population's dental hygiene. But many of the bottled water filtered out such compounds. In recent years, I heard reports that the US dental hygiene has declined some because everyone was drinking bottled water instead of the faucet water with the flouride.
Anyways, I don't know if this has anything to do with the Taiwan Kids teeth?