You left out Australia 70%, New Zealand 60%, Brazil 41%, Chile 70% etc.
Japan, China, India, and much of Europe have many areas with natural levels of fluoride in the water near or even above the recommended level. Which seriously distort their numbers as proponents of adding fluoride to water supplies don’t want to increase it arbitrarily only to safe and effective levels.
China has some really interesting data as in one location removing fluoride quickly resulted in “the incidence of dental caries among 4-year-old children had increased by 62%.”
Japan, China, India, and much of Europe have many areas with natural levels of fluoride in the water near or even above the recommended level. Which seriously distort their numbers as proponents of adding fluoride to water supplies don’t want to increase it arbitrarily only to safe and effective levels.
China has some really interesting data as in one location removing fluoride quickly resulted in “the incidence of dental caries among 4-year-old children had increased by 62%.”