My mom and I recently discovered that my rats tooth is extremely long. Most likely too long, because it is making his upper lip bulge on top, and he has difficulty eating. We looked at his mouth, and his tooth doesn't fit where it is supposed to, but it is up there between his gum, and lip. Any advice? any idea how much it is to get his tooth cut? We believe that wood won't grind his tooth down, because he isn't able to use it. Is it possible to do it yourself? Thanks.