Someone said :
Being considering getting whitening for a little while now, despite not smoking, daily brushing etc I think my love of tea is taking it's toll.
I've heard that Zoom is said to be great
It's the zoom i had done, works quite fast, I was done after about 90mins in total and there is a noticeable difference. The only downside is the pain, I should have taken some sort of painkiller before going in. Your teeth become really sensitive about halfway through the procedure and there are shooting moments of pain for the remainder which is quite uncomfortable, but the end justifies the means. The sensitivity only lasted a couple of hours afterwards too, all fine now.