Japanese girls are paying big bucks on their teeth these days, but probably not for the reasons you think.
These girls are sinking cash into getting a "yaeba," which makes the teeth look multi-layered in a vampire-like way.
The procedure creates "the fanged look achieved when molars crowd the canines and push them forward."
The trend started with girls in a Japanese pop group sporting it and now all girls are going crazy for the look (that they say makes men see them like childlike and endearing).
If that's the look you're going for, maybe just try some knee socks and a headband instead. (Japan Today)