I had my tooth root canaled and crowned with metal crown. It fell off after a few months. I had to go to a different doctor to get it repasted, which she did in ten minutes, except she placed it backwards that is the front side is placed in the back and vice versa. I told her something is really wrong and she would not agree. I immidiately knew the problem when i saw it in a mirror. Its causing a lot of issues including a gap between tooth and the crown, crown hurting the gum, bruiaing the cheek etc. What to do next. I dread going to the same doctor again. I dont want to lose my tooth.