I had veneers placed by a reputable cosmetic dentist, who I can't go back to because I have since moved. I hate the way the front two protrude at the top, and have a large 'edge' where they come out. Can another dentist file/smooth down the bulky edge a bit? Also, I am concerned that the dentist may have taken off too much tooth structure to prep for the veneers.. Does this amount look normal? it was originally the length of the one behind it. Should I be worried about the health of my teeth?