Interesting information. I have never heard of brushing with natural soap, but I assume its much like oil pulling; a working alternative to brushing the "common" way. Wild its illegal to pull a tooth without being required to replace it in France! My grandpa on my Dad's side actually had 3 sets of teeth! He didn't even know until he was in his 20s and his "adult" teeth started falling out and new ones were popping up in its place! He ended up having his dentist pull all his adult teeth so the new set could grow into without issue. I hold the notion this is actually part of our evolution. Dental health is so bad over the globe, our bodies are doing what they need to survive it better. I've heard of some people being born with TWO livers recently, which makes sense as there are so many dang toxins in our everyday lives we need two livers to filter all that out. The human body is a miraculous thing, if we give it the right environment and diet to do its thing unimpeded.