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What can be done for dental abscess after three rounds of root canal treatment?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

I had three sessions of a root canal, but I am still having a dental abscess. The treated tooth does not hurt, and the root canal seems to be properly done, but the abscess keeps coming back even after taking antibiotics.

  1. Why is this happening?
  2. Also, how can I know what type of abscess it is (periodontal, gingival, or periapical)?

Please help.

Thank you.

Hi,

Welcome to icliniq.com.

An X-ray would be required. Mostly, dental abscess cases have to go for a treatment known as an apicoectomy, which involves draining the abscess by making a passage through the bone. Some abscesses are recurrent, which causes necrosis of bone at the root level. Such conditions make root canal treatment unfavorable. In such situations,extraction and replacement of the toothwill be the best option going forward.

Hope I have addressed all of your queries and concerns.

Do follow up whenever needed.

Let me know if I can assist you further.

Thank you.

Patient's Query

Thank you doctor,

Here is the X-ray before the root canal.

  1. How would I know if it is not a cyst yet?

Please help,

Thank you.

Hi,

Welcome back to icliniq.com.

It is a hugeabscess (attachment removed to protect patient identity). No point doing a root canal. Even if an apicoectomy is done, the success rate seems low, and infection might occur again. So going forward, I would advise extraction followed by replacement after the infection is gone completely.

Hope I have addressed all of your queries and concerns.

Do follow up whenever needed.

Let me know if I can assist you further.

Thank you.

Medically reviewed byiCliniq medical review team

Published At March 24, 2019
Reviewed AtApril 13, 2026

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