You don't.: You don't. Much safer to buy the crest white strips or for even better results, get it professionally done at a dental office.
Answered 4/20/2014
4.9k views
You Don't!: Use the professional kits or the ones sold over the counter. Most dentist today will whiten your teeth for free with a cleaning that you need anyway!
Answered 9/3/2013
4.9k views
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