Removed and redone, far more trouble than thought. 1, removed, may need to be re-treated (endodontics, root canal treatment); 2, re-treatment, may not be able to treat because of root canal inaccessible; 3, no treatment, can not redo dentures; 4, extraction unfortunately; even if safely removed, may also face porcelain crowns have been removed, and can not be treated, can not be pulled, remove porcelain crowns of doctors in accordance with current medical standards, but also can not do porcelain teeth, patients at this time will complain Doctors, good intentions to do a bad thing, so many doctors do not want to remove the porcelain crowns made by other doctors. 5, the removal of their own teeth broken. In addition: remove porcelain teeth, please find the original doctor to help you do porcelain teeth removal. Change doctors, there is a possibility of fracture, causing unnecessary disputes.