Teeth whitening strips are thin plastic strips that contain a mild carbamide peroxide solution. The side with the whitening solution is pressed directly on to your teeth for a set length of time. Teeth whitening strips come in two different sets: One for your upper teeth, and another for your lower teeth. Whitening strips have become a very popular and convenient way for people to use - but how good is it? Here are some of the advantages and disa...
