Q. when i was a child i self harmed my teeth in that i deliberately did not take care of them for a few years. This was due to pschological trauma. i took all the enamel off and the front teeth were about as yellows as you can get. this i ovbviously came to regret. recently i maged to get porcelain venners done, However the teeth that were the darkest yellow still appear to be a shade of yellow as if its showing through. Is ithis possible because i am very distressed. i had the top 8 teeth done one of the back of the 8 appears to show little bit of yellow on the top also,