Patient: Hello, doctor. I would like to ask you some questions about restoring my tetracycline teeth, which are yellow, a little gray, and with spots on them. I don’t have any symptoms, but it’s very unattractive. I haven’t been to a professional hospital yet, but I’ve seen some treatments on the internet, such as bleaching or porcelain veneers. I would like to know from you what is the best way to treat a case like mine and what are the effects of the treatment. I look forward to your reply! Doctor: bleaching is not too good for your teeth; resin veneers are definitely feasible, the effect is not bad in the 1-2 years, but it is not easy to say after a long time; porcelain veneers depend on your bite to determine whether it is feasible; porcelain crowns are definitely feasible, but the grinding of your tooth tissue is more. Patient: Thank you for your reply. My teeth are pretty straight and strong, I don’t want to grind my teeth oh. The main thing I want to do is to whiten my front teeth. In your experience, how many years do the resin veneers you mentioned last? What is the price? If porcelain veneers are feasible, how many years do they last? What is the price? Doctor: Resin veneers also require the removal of tooth tissue, the color will change after 3 years, 450 RMB. Porcelain veneers also need to grind away the tooth tissue, how many years can be used is not easy to say, easy to fall, eat very careful, 3500 yuan a. You are a gay man, can not do as much as possible not to do.