How effective are over-the-counter whitening strips?

How effective are over-the-counter whitening strips?

Ronald Rosenblatt, DDS (General and Cosmetic Dentistry) gives expert video advice on: What is the most effective type of professional whitening treatment?; How long do professional whitening treatments last?; How effective are whitening toothpastes? and more...

The whitening strips will whiten your teeth also but there is some difficulty in having the whitening strip adhere to all of the nooks and crannies of your teeth and in the surfaces that the strips do touch do a nice job and in those surfaces where the strips cant get thru is not gonna be as white so u can see an uneven whitening with the strips. Even though the manufacturer tell you that's not going to happen.