Can severe pain in the tooth on which root canal treatment was done be due to gaseous necrosis?
Patient: RCT was done on my left 2nd molar and 3 roots were treated about 4-5 weeks back. Since 2-3 weeks I am getting severe pain in same tooth which is relieved by cold water. I have been advise ipobrufen 600mg  TDS with amoxicillin and metronidazole which I took for 6 days without any improvement. I suspect the detist failed to see the possible 4th root of the tooth which is now giving problem. I am suffering from gaseous necrosis in the possible 4th root or what? If the dentist is unable to see the 4th root  with naked eye, do dentist use magnifying instrument to see minute roots? A followup xray and OPG was unremarkable. Pls advise what should be done. The pain is unbearble even with ipobrufen. Thank for sending reply to  YYYY@YYYY Naqeeb Khalid Doctor: Hello, thank you for consulting with healthcaremagic. If there is pain present in the same tooth after the root canal treatment also,  it means that either the RCT is incomplete or it has not been done properly. I think you should visit another dentist  to get a complete examination of the tooth done with x - ray, as without x - ray it can not be diagnosed properly. And if needed get it retreated. Hope it will help you.