I want to get the teeth whitening trays from the store. Do they work? How long do they take to work?

I will be getting braces off soon and have had them on for a solid 3 years. I really need a very effective teeth whitening product, over the counter. Any ideas? Thanks!

I had the trays once but they didnt make the entire tooth white, as if the product didnt cover the entire tooth, it wasnt uniform. will the laser (i think its laser), the one time whitening be better at making the teeth all white?

does anyone know any easy, fast tips to whiten your teeth at home?

I just had my braces taken off and would like my teeth whiter before i start school…
any strip that reallly work?
and if i combine strips with whitening toothpaste will that speed up the process?

Best Teeth Whitening Kit
A Guide to Best Teeth Whitening Kit
There are many factors affecting the success of any tooth whitening product and procedure. These factors include present state of your dental health, expertise of the dentist and extent of required procedure. When choosing the dentist for teeth whitening procedure, consider his or her experience in [...]

I brush and floss daily, but my teeth are still yellowish. I can’t afford to get my teeth whitened by a dentist and I don’t want to use whitening strips because they haven’t helped before. I need suggestions on what I can possibly use instead and how do use it. Thank you!
I’m only 14 years [...]

I’m getting married and I want to get a really white smile. I’ve got a stain in between one two of my teeth, and they are a little discolored.
Can anybody recommend a professional teeth whitening system? I’m not interested in home whitening systems. Also, how much does it cost?