Using Natural Toothbrushes
As I alluded to above, there are many different roots and branches that were traditionally used as toothbrushes. I've only used licorice roots (Glycyrrhiza glabra).
Besides forming a great "brush" for cleaning the teeth, licorice root has also been shown to kill the bacteria that can lead to tooth decay and gum disease.
It also has a sweet taste that I personally find enjoyable.
To use a licorice root as a toothbrush I first select the best-looking root. Over time you get an eye for this. I am basically looking for one that is not too thick and fairly straight without a lot of "branches".
Then I simply chew on one end lightly until the outer root bark comes loose. I discard the root bark and continue to chew lightly. Pretty soon the root fibers will come loose and it will resemble a brush. Total chewing time is about one minute.