HomeAnswersDentistrydental cariesI have pain in my upper tooth and a pus-filled boil on the gums. Please help.

What could be done to resolve a long-standing tooth infection?


The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Answered by

Dr. Purva Jingar

Medically reviewed by

iCliniq medical review team

Published At October 19, 2023
Reviewed AtDecember 6, 2023

Patient's Query

Hi doctor,

I have a long-standing tooth infection in one of my upper teeth. I have attached an image of my X-ray taken last summer. I do not feel pain in the tooth itself, but a pus-filled boil appears whenever I touch the surrounding gum area, or when I shave, or use an interdental brush. However, biting on the tooth itself does not cause the pus-filled boil to form. As seen in the X-ray, there are two fillings in the tooth. I developed very severe sensitivity in that area to the extent that a dentist advised me to stop flossing in that area. Shortly after stopping flossing the sensitivity was relieved. This year I restarted regularly flossing on that side and thankfully the sensitivity has not re-occurred so far. Please advise me on what needs to be done about this chronic tooth infection. Can simply replacing the filling with a new material remove the chronic infection?

Thank you.

Answered by Dr. Purva Jingar


I appreciate you signing up on icliniq.com.

You now have exclusive access to expert medical opinion.

I have reviewed your X-rays (attachments removed to protect the patient's privacy). They reveal a black area below the root of the tooth, which causes the infection and pus. I suggest you visit a dentist and get it treated with a root canal or removed. Removal might seem to be an easy option, but might not help you in the long run, as you need to get it replaced. Hence, a root canal is the best option, as this will actually preserve the natural structure of the tooth. But before going for any treatment, I suggest you make sure you are medically fit.

I am happy to help you and will always be available whenever you need me.

Thank you for choosing icliniq.com.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Purva Jingar
Dr. Purva Jingar


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