This is what I use instead of toothpaste now:
It leaves my mouth feeling minty fresh just like toothpaste, just without ingredients like SLS and flouride. They sell something similar in Sprouts Farmers Market stores - the brand is called Spry. I've never used their tooth powder but do like their chewing gum.
I purchased this tooth powder through www.soapforgoodnessake.com. I purchase all our soap there too. Love their soap. I also like that when you finish this jar, you can order a refill from them and it comes in a little bag and you dump the bag of tooth powder in this jar so there's less waste for the landfill. But if you do want a new jar each time, the jars are made of glass so they can be recycled. :)