Sodium Flouride is very different than naturally occurring fluoride.
The stuff in toothpaste is harmful for your health, and the fact that it is added in our water supply and toothpaste is the biggest offense to man.
I use Earthpaste. It takes time getting used to the no-foam aspect. But I love it and it's a great price. You can find it at any health store or online, but it's more expensive online:
https://www.amazon.com/Redmond-Earth...thpaste&th= 1