that isn't how fluoride works though

It exactly how it works : ingesting fluoride in tap water causes dental fluorisis.

Enjoy whatever else you thought was going on in this exchange.

I cannot be more clear that this :

Dental fluorosis is caused by ingestion of fluoride during teeth formation. There is no controversy over this.

Trump better deport all the illegals.

Fluoride does get absorbed and then deposited into bones and teeth. With disastrous consequences for kids and teens growing.

Fluoride poisoning, which you will get from total exposure if the tap water is fluoridated, cause dental fluorosis.

Mild form used to be uncommon, but it now affects the vast majority of teenagers. Texture and cosmetic damage to the teeth ( porous stains ).

Moderate and severe forms, which is permanent structural damage to the teeth, used to be rare, but affects 25% of teenagers last time I read the data, so likely higher now.

Gary Plauché, eul Cadien basé.