I've heard that with crest whitening strips they only cover about six teeth on each row... Can you just use two strips on each row, like two top and two bottom, so that they cover twelve on each row..? Or are they specially designed to fit certain teeth..? Thanks!
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You could do that...but they likely would be difficult to keep in. Best tip....smile your widest. That is as far back as you need to whiten. Otherwise no one is going to see your whitened back teeth. You would be wasting good money if it were not needed. If you still want to cover all your teeth then I would suggest that you go to your dentist and have bleaching trays made. They are more costly but they cover every tooth. Plus you have to buy the bleach from the dentist each time you run out.
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