Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: My Dentist Commented!
Review: I have used this product several times over the past few years and I love it. For an over=the-counter, inexpensive product, they really do work. Of course it will sting some people, and some will find the strips annoying, but you get used to that stuff. If you complete a whole box you will see a difference. I went to a new dentist and he said "Have your whitened your teetH?" (I am sure he could tell because the back molars would be darker), I told him I used WhiteStrips and he said, "Yes, they are great!". Use them, they work! However, if you have veneers, or anything like that they do not work. I do wish, however, that Crest had an actual tray made that would reach farther back teeth. When you smile wide, you can see a color variation between where the strips reach and do not.
