Well, technically speaking, baking soda doesn’t “whiten” your teeth. What it does is break down the stains on your teeth and scrub them away. This can make your teeth appear somewhat lighter, although the process is generally more effective on brown or yellow stains and less effective on gray areas.
Toothpaste with Baking Soda
There are toothpastes on the market that contain baking soda, and they are probably easier (and arguably more effective) to use than brushing your teeth with straight baking soda. On the other hand, baking soda by itself can be less expensive than toothpaste.
Baking Soda & Salt
If you decide to use baking soda by itself, dissolve a spoonful in a full glass of water and then mix in a bit of salt until it takes on a paste-like consistency. Brush your teeth with it and then spit it out and rinse well. You can probably expect to feel some tingling while you are brushing. Don’t do this more than once every two weeks, or you could harm your teeth.
People have been using baking soda to lighten their teeth for centuries, and using baking soda shouldn’t be dangerous. But just to be safe, you should always talk to your dentist before you begin any dental treatment plan. If you already have sensitive teeth or gums, the corrosive nature of baking soda could cause you some pain or other problems.
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