Benni started chewing on his cage bars a couple weeks ago, he seems to does it when he wants out and I'm awake (I live in a studio so we share a room, and he cannot come out when I can't watch him cause he's gone into the oven before).

His top right incisors seems really small, about half the width of the other incisor, and is also very short from him chewing on the bars on that one side. His right incisor seems to be normal size but I'm worried he's just been tilting his head to use his left incisor (even for inshell nuts) because it looks even smaller since two days ago. I could bring him somewhere to trim his teeth but don't like putting him under, will the tooth eventually normalize if he stops chewing the bars?

How do I get him to stop chewing on the bars? I have his cage covered by a sheet except for the front, and he tends to pull the sheet inside when I try to cover the spot he goes to chew, so he picked another spot to go chew. Could I put something spicy on the bars to discourage him to put his mouth on it?

If I can get a picture I will but he is so squirmy it's hard to get the teeth