Dentist: Five recently conducted studies all show that the proportion of children with decayed, missing, or filled t...

supreet1 on September 16, 2022

why not D?

D and E seem correct, why is E better

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Emil-Kunkin on February 15, 2023

Hi, I think D would weaken the argument. If European kids have better dental hygiene then that would be an alternative cause, which would mean that there might still be an impact to the fluoride that is masked by the difference in hygiene.