What happens next?

How to make tooth powder
Measure out four tablespoons calcium (carbonate) powder.
You can crush calcium carbonate tablets or buy calcium powder in bulk. Adding calcium to your toothpaste helps to rebuild the calcium in your teeth.

Choose from: A. While you can crush calcium carbonate tablets with your fingers, go easy on the carbonation and make sure you do not crush any by closing your mouth. Get a plastic ruler and measure out half an ounce of calcium carbonate powder per liter of water.; B. The amount you add is up to you-you can substitute two tablespoons just for the regular ingredients (vinegar, water), or you can use more directly or all-purpose. You can add more as you see fit, but it's pretty simple.; C. It will also help keep them fresh for months. Mix 1 tablespoon calcium powder with 1 teaspoon water.; D. Put four tablespoons of baking soda into your bowl. Add two tablespoons baking soda.;
D.