Hi! I use any of the Burt's Bees toothpastes with a soft toothbrush-- I found an Ionic toothbrush from Dr. Tung's that works for me.
Then at night I now use Waleda Salt toothpaste.
Both Burt's Bees (who woulda thunk!) and Waleda seem to be the only two I could find so far that are all natural with no flouride and no chemicals-- including no sodium Lauryl sulfite, which I noticed is added in alot of the Natural type toothpastes.
You can get both brands in your local healthfood store- or online -- I will be ordering another tube of Waleda soon at Vitamin Shoppe (800-223-1216) because they have both brands and are having a super sale of the Waleda brand for $3.22 a tube right now.
Hope that helps!
~Boldy