Since we're doing anecdotes, my kids grew up on well water and have never had cavities or tooth problems. They (most of the time) brush their teeth daily, eat sugary crap, and get fluoride treatments applied yearly from the dentist (they "paint" a gel on the kids teeth, I believe this is standard in the US for all children regardless of water fluoridation).

> Portland, where I live, is the last major city to not have fluoride in the water.

Kind of depends how you track things I'd think. New Jersey, the state with the highest population density in the US, largely doesn't put fluoride in the water outside of a few municipalities.

There's no fluoride in the water in almost the entirety of Hudson, Essex, and Bergen counties, which are located near NYC and include the cities of Newark and Jersey City. Combined population of those three counties is over 2.5 million people.

Tablets that the kids ingest?? After so much evidence of the neurotoxic effects of ingested fluoride, it's worse than criminal if these dentists are giving fluoride for kids to eat.

Other American cities without fluoride in their water include Tucson, Wichita, Fresno, Albuquerque and San Jose. I wonder how their teeth are doing.

Dietary fluoride has a minimal impact, you need fluoride on the surface of the tooth. A fluoride rinse is much more effective that tablets or in the water.