Baking Soda for Brushing Teeth Questions!?

1. Does baking soda actually WHITENS the teeth, or just BRIGHTENS it? 2. Does it keel the enamels after lots of uses? How often is too often to use baking soda for brushing? 3. Would it be bad if the baking soda was expired? or like more than a year old? 4. What toothpastes do you recommend that has baking... show more 1. Does baking soda actually WHITENS the teeth, or just BRIGHTENS it?

2. Does it keel the enamels after lots of uses? How often is too often to use baking soda for brushing?

3. Would it be bad if the baking soda was expired? or like more than a year old?

4. What toothpastes do you recommend that has baking soda in it?
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