There are scientific arguments to be made against drinking fluoridated water but none of them are strongly conclusive (including the oft cited Harvard IQ study). There is no reason to deliberately drink fluoride, as the mechanism for fluoride therapy is topical, not systemic,. Realistically you will inevitably swallow a small amount as you brush, even if you expectorate, so functionally it is the same really outcome, but it is the principle of the matter. Alternative medicine advocates have a tendency to greatly exaggerate the dangers of low doses of fluoride. This is why I concentrate on the ethical case against water fluoridation.
Fluoride strengthens children's teeth. It is not essential to use fluoride, especially if children have excellent hygiene, but that is no easy task. Children's hygiene tends to be terrible.
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