Also, as an update to one of my earlier posts, I have been using my own home made toothpaste now for just over a year and my dentist has verified that my teeth are not only cleaner, but whiter than ever. He was "frankly amazed."
Toothpaste mix: 5 parts baking soda to 1 part salt. That's it. Healthy, clean, sparkling teeth and gums without all the crud and expensive corporate garbage coating your chompers.