I used to have an underbite, and had upper jaw surgery about 10 months ago. The surgeon told me that you would be able to see most of my teeth when I smiled, a couple millimeters at rest, and that my lips would look more proportional. However, when I smile, you can see barely any of my top teeth (even if I force it) and no teeth at rest. Is there anything that can be done, or is my only option a revision surgery?