What can the dentist do against pain after root canal filling?

The therapy for pain after a root canal filling depends on the cause of the pain. In the first place, we wait to see if the pain decreases and minimizes after a few days. Only if the persistent pain quality and intensity does not change and remains permanent or even stronger, a therapy is initiated.

Pain due to a too short or too long root filling is treated by revision. During the revision, the existing root filling is completely removed and the canal system is treated and disinfected again with medication. When the tooth calms down, a new root filling is inserted into the tooth.
This is the surgical removal of a part of the root apex. When the tip of the root is cut off, it is checked that the root filling is tight from the cut point onwards. If this is not the case, the root canal filling is sealed and filled retrograde, from the bottom of the root tip.
If the inflammation below the root apex increases, the revision is also initiated and attempts to minimize the inflammation below the root apex by means of a medicinal insert.
An accompanying systemic anitibiotic treatment can also help to remove the inflammatory cells from the body more quickly.
The pain caused by the persistent inflammation below the root tip can also be caused by a fistula tract that forms from the root tip, the site of inflammation, to the outside, either into the oral cavity or outside the oral cavity. The fistula tract constantly drains pus, which also causes pain. Therapeutically, the fistula tract can be surgically removed.
Complaints due to a longitudinal fracture or a transverse fracture below the gums always mean that the tooth is not worth preserving. The tooth must be removed by the treating dentist.
If the pain occurs mainly when chewing, then the cause is probably too much filling. This can easily be corrected by grinding.