Most dentists would agree that the single hardest restoration to do is a single crown on a central incisor, which is one of the two teeth in the middle.It is difficult to do because it has to match the other central. This patient had a crown placed by a previous dentist and after a few years the gum tissue receded, which exposed the margin.

The previous crown was removed, and after two appointments the new porcelain crown was cemented. The new crown matches the adjacent central incisor and they both have the appearance of natural teeth, when in fact only the one on your left is a natural tooth.