Take a peak at this website.
Teeth Whitening by Zoom!
I have calcium stains on my teeth and wanted to get them laser whitened. The at home kits don't work for me either. I want white white teeth so that those calcium stains blend in and become less noticeable. I also kicked a smoking habit about a year ago, so that made it worse.
Anyway, I have a free consultation this coming week! They do a free consultation to tell you whether you are eligible for this or not. You can't have plaque build-up and cavities.
They are also running some specials right now, depending on what area you are in. I know here they are running a $99 special! It's $375 normally, so fantastic deal.
I would look into it now!