I lost a crown several months ago and have yet to go to an oral surgeon to have him/her simply remove the what's left of that area so that I can get an implant! What's left of that area are the remnants of the original tooth (very scary and discolored) and the post that once held the crown in place (it sticks out a few mm). The post now moves a bit and I'm worried it will come out all the way and I will swallow it - therefore doing great harm! Will the post come out or are they put in well?