Water fluoridation is considered very common in the United States, Canada, Ireland, Chile and Australia where over 50% of the population drinks fluoridated wate

Water fluoridation is considered very common in the United States, Canada, Ireland, Chile and Australia where over 50% of the population drinks fluoridated water. Most European countries including Italy, France, Finland, Germany, Sweden, Netherlands, Scotland, Austria, Poland, Hungary and Switzerland do not fluoridate water. https://en.m.wikipedia.org/wiki/Water_fluoridation_by_country https://en.m.wikipedia.org/wiki/Water_fluoridation_by_countr... Make your own conclusions.