What the heck is a cavitation?
Cavity and cavitation sound awfully similar. They both come from the same root word which means hole. Cavity refers to a hole in a tooth where as cavitation is a hole in a bone, specifically jaw bone in this instance.
How on earth would someone develop a hole in their jaw bone?
Cavitation(s) are incomplete healing of the jawbone after the loss of a tooth or having one pulled. Other possibilities are having an adult tooth lodged in your jaw (the tooth never came in) or having a broken piece of a baby tooth lodged in your jaw.