Conversation: The conversation between human and AI assistant.
[|Human|] I had root canal done 36 hours ago on no 12 tooth . swelling and pain in that region is coming back. It is supposed to get better. I have an appointment in 10 days to do permanent fill of the root canal. is this normal process? Last week my dentist thought my upper left quadrant maybe hurting because of Sinus infection . And after 3 days of miserable pain, she recommended me to endodontic , who did the root canal 36 hours ago.
[|AI|]  Hello and welcome to Chat Doctor forum, As you said, after root canal treatment has done, the swelling and pain re-occurs. This is due to the infected pulp and pus remaining within the pulp canal due to improper biomechanical preparation. The pain can also be due to overextended filling or Sinus infection/ledge formation/perforation. Re-rct may relieve the pain. If the symptoms persists, Extraction/apicoectomy is indicated.Meanwhile, apply ice packs on the affected area.