Well done for keeping going through all the trauma. I think the best smiles come without being asked to do them. I like to get grab shots when a model is laughing at something. When all the trauma is over, you will be able to smile and laugh naturally without worrying about how it looks.
Hiya Pregnancy made my teeth go downhill a bit too. Not as severe as the work you need doing, But i've found they chip quite easily - I had to have the front two rebuilt recently in the middle - i was just sat there and it came away. Hopefully they will get them to a decent standard. I'm still a bit shy about showing mine just from those couple of days waiting to get the front rebuilt. The way it affects your confidence so quickly is mind blowing. I'm scared of the dentists but with it being right at the front... I just couldn't leave it. Well done for sharing, And big hugs.