I had moved to NYC, had a new dentist, in our general initial discussion about my teeth I described the history of the tooth and that I still had some sensation (not pain, just sensation) on pressing the flesh of the gum above the tooth.
He took an x-ray just of that tooth, and lo and behold, a big bloom on inflammation above and around the tooth.
So it was easy to find, if you looked.
Interestingly, the root canal re-drilling specialist who did the work told me he had over the many years a number of cases where patients had various issues such as dizzyness, where their issue went away when their improper root canals were re-made.
He took an x-ray just of that tooth, and lo and behold, a big bloom on inflammation above and around the tooth.
So it was easy to find, if you looked.
Interestingly, the root canal re-drilling specialist who did the work told me he had over the many years a number of cases where patients had various issues such as dizzyness, where their issue went away when their improper root canals were re-made.