REALLY URGENT: Sick hamster

Is there anyone who knows something about hamsters?
Please I really need help.

My hamster lost his upper tooth in December. Now the other upper tooth is too long, he can't eat.
Vets know nothing about hamsters (at least in my city).
I need to cut this tooth. My question to you:

Is it possible to do it without anesthesia? He's too weak for it.
Can I do it using surgeon's scissors or do vets use something else to do it?

Please help! ;(