Hi. My first post on here. Thanks in advance to anyone who can provide an answer.\n\nI've have had a dental implant (premolar) done over a few months, finishing today with the fitting of the crown,\n\nIn grinding down the crown to get the bite right, my dentist has exposed the metal under the porcelain on the biting surface of the crown. He mentioned it while I was in the chair and said that it won't show. But it does show, it looks like a old metal filling, not what I expected from an expensive implant (this dentist is not by any means cheap and markets himself on quality)\n\nMy query though is this, does the exposed metal present a potential health issue to me or a structural integrity issue to the crown itself? I intend to ask him to put this right but don't know if it can be effectively repaired or if it will require a completely new crown. I have a follow up appointment in two weeks and will bring it up then.\n\nThanks again, in advance.