I've been fretting about fluoride lately. We do what we can to take it out of our drinking water (yecch!) but I've still been using toothpaste with fluoride (Crest, Aquafresh, etc.).
Fluoride is a toxin, and my opinion is that it does not help tooth health, in fact, it may cause some damage to teeth.
Finally, I think I have an answer. A friend of mine sells this stuff called "Miracle 2." It is a bunch of products (yes, multi-level marketing) that are meant for cleaning your house and also to replace some bathroom products.
For toothpaste, you mix a couple of the things together and you get a nice toothpaste. I haven't done the exact math, but I think it's cheaper than toothpaste.
The nice thing is Miracle 2 is completely free of fluoride or other toxins. It's called a "neutralizer." It's meant to neutralize your system, to bring the pH level to normal if it's too acidic (most of us) or too akaline (rare).
So far, the taste is fine and it foams up very nicely. And it helps my breath. It is not minty or flavored with anything, but my teeth feel very clean afterward.
Here is my friend Steve's Website. Click on Products and then your country and then "New Customer. You won't have to enter any personal information to see the product list, it's just weird how the product list comes up.
You can buy the stuff online or just e-mail Steve.
NOTE: I do not make any money from you purchasing Miracle 2 products. I am not in the network for Miracle 2, and will benefit in no way from your transactions.