A 44-year-old female asked:
Disclaimer

i had incomplete root canal extracted.it took 9 injections. have 2 canker sores upper gums lt& rt side 2wks postop. tooth lower left.pain so bad.help?

2 doctor answers
Dr. Lonnie Smith
39 years experience ENT and Head and Neck Surgery
See your Dentist: You should see your dentist. You may need more work on the gums.
Answered on Jan 26, 2016
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1 thank
Dr. John Chiu
Dr. John Chiu answered
57 years experience Allergy and Immunology
Infection?: Agree that you need to see your dentist ASAP since the site might have been infected.
Answered on Sep 24, 2014

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Sound like: The root canal may need to be retreated or that you have another tooth acting up. I would see an endodontist or my dentist for an evaluation.
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