Q. Ive smoked since I was 8 years of age im now nearly 23 my teeth are very yellow still, even after I paid £500 (which i saved long and hard for) to have them whitened privatley as im a single mum on benefits and couldnt get it done on the nhs, I undergone two weeks of sleeping with specially made trays in my mouth with the bleach, but after about 2-3 days after all the treatment, they went back to nearly the same colour. I’m at my witts end what can i do to whiten them, i’ve stopped smoking and i dont drink much tea or coffee, I’ve not laughed for over 10 years for feeling too ashamed what can I do?,