Re: Ten years later, wisdom tooth infected
I'm afraid a trip back to the dentist would be necessary. It sounds as though there are bone fragments that are causing a chronic infection. Unfortunately, this happens esp. when the extraction was a difficult one.
You need to go and have the area xrayed for bone fragments. They can usually be easily removed with a small surgical nick over them and then surgical removal. You can't do it yourself but I do URGE you to go. Chronic infections will only dissolve bone nearby and can affect your other teeth. PLEASE go and have this addressed. You could be saving your other nearby teeth from future failure.
Hope this helps. I am sorry it happened. It does though. Bone fragments after wisdom tooth removal are common.
Best to you,