I have school in 3 hours, so Im wondering how long Baking Soda takes to work to whiten teeth.. And what do you do with the Baking Soda to get it to work?
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Just dip a damp toothbrush into it and brush. Watch out - it will be very salty! It could take a few weeks of daily brushing to whiten your teeth, depending upon how dingy they are.
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