One of my bottom left molars was fractured. The dentist performed a root canal on this tooth. After a week, I developed an abscess on the gums around it. The dentist said the tooth was badly infected and it has to be pulled. He referred me to an oral surgeon.
The oral surgeon extracted the tooth. He performed a bone graft after and sealed it with a membrane. After a month, I developed polyps in my left nasal passage into my throat. I am currently taking antibiotics for this.
Could this be caused by the infection from the extraction site? What are the indications that the bone graft failed? Please advise me! I want to have all these problems solved before I get implant. Thank you for your help!

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