Q. PORCELAIN TEETH CHANGING COLOR I had a full restoration in 2000-01 using empress crowns and veneers on the front lower teeth. The crown and veneer color were the second whitest you could get. I wanted the whitest but my dentist talked me out of it. My teeth looked fantastic for several years but now have turned off white. I was told that the porcelain would never change color…that is why I got the work done. My smile was very white for the first 5 years but has now changed to off-white..not very pretty. I have my teeth cleaned every 3 months and brush and floss 3 times a day. What is going on? I have pictures I can send. I am so upset because I wanted a really white smile and paid $30,000 to get one.