Since my problems began after a root canal, I will copy something from my notes which explains why teeth erupt after root canals. It is pretty technical.
Amputation of the nerve inside the tooth, (which is the technical definition of a root canal procedure) frequently causes some inflammation and swelling of the hammock ligament fibers. The Hammock ligament may be further inflamed by overextension of the file beyond the tip of the root during the procedure, as well as by the forcing of debris and fluids beyond the tip of the root into the hammock ligament during the cleaning of the canals. This, in turn can cause a slight elongation of the tooth in its socket which means that unless the top of the tooth is shortened (ie. the occlusion is adjusted) to avoid hitting the opposing teeth, normal biting, and especially grinding and clenching (hyperocclusion) can traumatize the hammock ligament. This causes further swelling and pain in the ligament which increases the elongation of the tooth and further trauma from hyperocclusion which causes further swelling etc. etc. This vicious cycle is very painful. Even very slight pressure on the tooth can can bring tears to the eyes of a Marine! The treatment for this problem is generally to reduce the occlusion on the tooth so that it cannot make contact with the opposing dentition.
Hope that helps. Deb
| 
Linear Mode
