Well if it's down here I'm the foreigner.
Crooked teeth is a touchy one. Even if she's hot I may have some trouble getting past it. I had braces so maybe it made me a teeth snob? Hmm. I dated a hotty in Victoria who had great teeth with the exception of one! Her bottom left front was broken on an angle like this> /
and she didn't do anything to fix it. I could not get over it, she had money and a great job but just fucking left it like that. Couldn't do it. I couldn't go to the next level coz of it. I was broke and she paid for dinners and such expecting me to put out at some point, but when it wasn't happening she got angry and that was that. I actually told her I had to meet my mom down town on one night just to get out of going to her house to "thank her for dinner" Total Seinfeld stuff. 
I had a colleague once, tall, slim, athletic, blonde, we used to ride together once in a while, and she followed cycling as much as I did.
She had great teeth except a bottom corner one was a little twisted. She told me she was getting it fixed, and my first thought was she wouldn't be Julie anymore. But it was fine, I got used to it. She also got her leg hairs removed with electrolysis - I made it a point not to comment or ask any questions about that...