When I smile my chin sticks out and my mouth kind of sinks in. I really don't like how it makes the shape of my face look. It's only really when I smile, when I'm not smiling my chin looks quite balanced with my face in my opinion. This is why I thought it might not be a good idea to get a chin reduction, but maybe I am wrong. Is it maybe because my teeth are far back? What can I do to stop this from happening? Thanks