I had an oral cyst removed when I was about 9, it occurred around a growing 12-year molar, and ate away a large portion of my jaw, and pushed the growing tooth up into my sinus. The oral surgeon did the surgery and I lost that growing tooth and they thought that I would never develop a wisdom tooth there -- but I did unfortunately. Perhaps his jaw has been compromised by the cyst and removal of the cyst will mean that those teeth have lost their support. That's really too bad - good luck!