Baking Soda -- fun fact

I read in the book A Nickle's Worth of Skim Milk that during the Depression they used baking soda for toothpaste. Sound gross? Well, my doctor (being the brilliant man that he is) also suggested we throw out the flouride toothpaste and brush with straight baking soda. Well, we tried it! It tastes terrible! And it makes your teeth feel like pearls! So shiny! So smooth! So . . . clean!

Be brave! Try it! And tell me what you think!