<s>[INST] Hi, my 16 year old daughter had all 4 impacted wisdom teeth removed at the end of June.  She has had 3 infections of the bottom teeth.  Antibiotics clear the infection and then it reappears in about 2 weeks time.  A post op X-ray did not show any bone fragments.  We will see the surgeon again on Tuesday.  Any thoughts on why this is happening and any suggestions on the questions I should be asking the surgeon?  Ps . The antibiotics have been used as prescribed and all post op instructions followed. [/INST] Hello, Thanks for posting your query. Did the infection appear on the site of extraction socket or is it associated with adjacent tooth/interdental spaces? Since the x-ray does not show any bone fragments underlying, the cause for infection can be due to spread of infection into adjacent tissue spaces. Pus if present, has to be Chat Doctor. Deep caries if present, has to be root canal treated or extracted. Periodontal pocket associated with Bone loss has to be treated with periodontal surgery. I would suggest you to get a second opinion by dentist. Hope this helps. Meanwhile, maintain oral hygiene well. Take care. </s>