Baking soda is relatively inexpensive compared to most toothpaste products. Plus, you only need to use a small amount at a time, so a box of baking soda will likely last you longer than a tube of ...

However, as it does not contain fluoride, baking soda leaves no protection to the enamel, which is the hard surface of your teeth. "Baking soda is an inexpensive, readily available teeth cleanser.