There are two kinds of overfilled parts, one is gutta percha and the other is paste. Paste is absolutely unnecessary, and you can't get it out. It will be absorbed slowly. Gutta percha is divided into cold gutta percha and hot gutta percha. If it is a complete cold gutta-percha, it is possible to take it out. At present, the proximal root can be removed, but the distal root cannot be removed through the root canal unless it is removed surgically. But local overcharge will hardly cause the serious symptoms you described, especially after such a long time, and there will be severe pain? It is suggested to have a comprehensive examination and make clear the cause.

Beijing Stomatological Hospital-Dental Pulp Department-Ling Jianjun Attending Physician