Hi, I have a young Mini Rex. I just noticed one of his top tooth is loose and cracked near to his gum. I don't know how that happened, Is the broken tooth going to fall by itself or should be taken off while the root is still inside gum? How long it take time the new tooth grow? Sorry for too many questions, I feel so bad for my bunny because he is not able to eat properly and I guess he is on pain. Could you please give me some advises? Thanks in advance.