Comment by freehorse

Kids until which age? Ime somewhere between 4-5 seem to be perfectly able to spit their toothpaste without swallowing. Guidelines in the EU typically suggest normally fluoride toothpaste in increasing amounts after 4.

Also, fluoride helps with remineralisation when it is used pretty much regularly, not once per 6 months. Fluoride treatments once per 6 months are not gonna bring back the enamel lost.

I do not understand what is the big deal here. In many countries there are specific recommendations wrt to fluoride and kids brushing their teeth that seem to work fine. This seems to be a solved issue in many places in the world without fluoridating water.