Q. Hi I was in a lot of pain before my root canal treatment but after the first part of the treatment(which was very painful as the dentist said I had some inflamation) I felt no pain at all and it was like a miracle. During my second visit, the dentist spent a lot of time filing in part of my tooth which again was very painful. He then put three long wires into my tooth and took an xray and said he needed to file deeper next visit.He said he wouldn’t be able to root fill the tooth until all the pain had gone when filing inside my tooth.I had this treatment on Wed last week and I am still feeling v. sore. I am really disappointed as I thought all the pain would be over now. Is this normal for soreness to last so long after the second part of the treatment? The dentsit has put medication in my tooth (whatever that is?) What has hapened to the nerve in my tooth? Has the dentist removed/killed it? If so why do I still feel soreness. Many thanks