Abyssa,
I can't understand why your vet would recommend that your chin's teeth be removed. Try to find another vet with experience in rodent dentistry. Another thing - if a vet is experienced, it's possible for routine filings to be done without anesthesia.
Every case of malocclusion is different, and you'll hear of alot of different opinions on how to deal with this. Keep that in mind as you decide how best to care for your chin. I currently have a couple of chins that have routine dental filing done twice a year(they bounce right back and don't require any handfeeding), and then two others that need filings every other month(these two chins do require supplemental handfeeding).
I think the best thing you can do is read all you can on malocclusion, and meet with a knowledgeable vet to take a look at treatment options. The most in depth look on malocclusion I've seen online is in the Dental Health section on Chincare.com. You owe it to your chin to read this, and you'll come away with a better understanding of your options.
Lori