Which teeth whitener is the best?

Take home trays: Take-home bleaching trays with carbamide peroxide seem to work best and costs the least long-term and can be reused. In office bleaching with peroxide works the fastest.

Depends: First, you need clean teeth, if you have not had a professional cleaning recently, you will need one. Second, you must know that only teeth will whiten, not fillings or crowns. Third - talk to your dentist who will explain which system is best for your teeth.