Hello, after recently biting on a small bone, an upper tooth broke diagonally; I think it is tooth number 3, or so I have been told. A friend who is a dentist removed the nerve and 'closed' the tooth. He said I would need a post and a crown (the tooth crown had broken off), and that it should be ceramic and metal-free because metal weakens over time. Roughly how much would that cost me? I am asking because I am not particularly well-off. Thank you.