Can a broken tooth cause a nasal infection with yellow mucus and a foul odor?

Hello,

Welcome to icliniq.com.

I read your query and understand your concern.

Based on the image (attachment removed to protect the patient's identity), it is evident that they are root stumps. Almost all the major portion of the tooth has gone due to decay, and only the root part is left out with decay. It can be infected or not (the image is unclear, so I cannot comment much). You need extraction (removal) of the remaining portion. Otherwise, it can cause pain and infection in the future.

Take an intra-oral periapical radiograph (X-ray) to check for any periapical (beyond the roots) infection. And this will help to see any infection reaching your sinus, which might cause your nose infection. Or the nose infection can be because of any different cause too. Try sending an X-ray for further diagnosis. Do you have any swelling, pus discharge, or pain in that area or below your jawline? Kindly send me a clear picture and X-ray to guide you further. But anyways, it is better to get this tooth extracted as early as possible. Do not worry; you will be fine. After removal, you can replace it with an artificial tooth.

Thank you.