I always thought the double canines looked cool. Scary actually, like meat ripers. Puncture and shred at the same time.
As said, they'll fall out. We were lucky and both of ours teeth all fell out naturally. However, between the 2, the male has a bigger problem with tartar build up and bad breath. About 3 months ago when he was nuetered we had his teeth cleaned. His breath was great, no smell at all. 3 months later, he's got some tartar build up starting and his breath isn't great. The female's teeth are clean as a whistle and have never been touched.
Genetics play a part as well I think.