Hello.. Take an xray and follow up.. There are many reasons for tooth pain after root canal treatment as errors in rct, perforation fractures, I'll fitting crown.. Follow me up with a xray.. Thank you..

Need to know few things like do you feel pain in tooth or gums, is their any bleeding from gums,  after root canal treatment, capping is done or not. Sometimes pocket is formed in between tooth causing severe pain. X ray will help in proper diagnosis. Consult with doctor online or offline for better guidance and treatment options. Till then warm saline water rinses two to three times a day, use mouthwash, use dental floss to clean the area.

Hi, We would need an assessment to confirm if the pain is from the tooth or the gums. Alternatively, if a crown is provided on the root canal teeth, we would need to check the fit of the crown.