Hello Doctor Riten Patel, I do hope that you can help me. I have a yellow line down each front tooth and have had them for a while, I have tried everything to get rid of them. using all of the over the counter whitening treatments, but nothing removes them, they seem to be under the enamel,would laser get rid of them if not what would you surgest.one dentist said to have enamal removed teeth cleaned and re enamald costing £600 !! I just couldn’t afford that kind of money any advice you could offer me would be greatly appreciated. These stains have been on my teeth for many years and it really does effect my confidence greatly. I look forward to reading your response, Thank you in advance