Q. Dear doctor, I have tetracycline staining of my teeth for which I got veneers for the upper front 6 teeth (incisors & canines ect.) 4 years ago. My teeth are also big and crowded. Now its time to change the veneers as they are getting yellow. I have been told that the only way to improve my smile is crowns (not veneers)and I feel it is a bit of a drastic step to get rid of 6 normal functioning teeth and get crowns instead. What is your opinion regarding this? I am sorry to ask a difficult question especially when you have not seen my teeth. Thanks!