THe tooth powder are herbs dr. Christopher suggested many years ago. You can take a wet tooth brush and dip into some powder on a dish, the child needs no water, you swallow the herbs when done, no rinsing.
I also have made it into a paste using a rare Amish Sorgum Molasses. It is working so far, but it is hard to handle and put into a squeese tube! it took some time to just make enough fo4 4 tubes.
The powder is $6.95 and the paste is $12.95. The paste is actually very cheap when compared to the standard price for the herbs that it takes to make it, but people are so use to paying very little for tooth paste, so $12.95 sounds like a very high price. I would never make anything to use on the body that I couldn't eat and that goes for tooth paste and soap.