She did exam and took 3D X-ray (see below.) She said there was little chance of a root canal re-treatment being successful. She said I should have it pulled and get a Dental implant. I have no pain or inflammation currently. My question is, what could happen if I do nothing. According to her I'm gonna lose it anyway, so why not get use out of it before I spend $4000. for an implant. I will probably get a 2nd opinion.