Actress with false teeth: Emma Stone

I just watched The Amazing Spider-Man (why not Spiderman?), and the main female character is a riddle to me.
She has clearly false teeth (her canine teeth are ROUNDED). Cheap dentures have that kind of aligned rows of teeth with no edges. I can't believe, this lame false teeth are still made in the USA. And at her age? 30 years old and already have a full denture? And she is a "famous" Hollywood star?
And her name in the movie? Gwen Stefany..or Stacy or something. Who gave that? :D Nevertheless her strange teeth distract me every time she is on screen.
So ridiculous.