Well what do you think of Shunka Ayami? She got a beautiful face, body and excellent acting, but she got a few teeth out of positions.
For some reasons, Japanese have really crocked teeth, and it's as if they have accepted it as normal, since they tend to do surgery for everything else, but won't bother to fit braces on the kids.
It does work for certain girls, (But maybe I'm just saying that because I can't see how they'd look with fixed teeth.) but yeah, that's one of the things were I don't mind cosmetic surgery at all.
As examples I present Ai Uehara:
Before:
And after, the look most people here are familiar with:
She might have had a few other minor changes to her face, but the teeth are the most noticable enhancement and a huge improvement.
The other example I have in mind is good old Rei Mizuna:
She did wear the crooked-teeth style better than Ai Uehara did in her early days, but her fixed teeth are still a massive improvement imo.
Now that's a sexy woman.