Cavitations are an area of dead or dying bone.
They are caused by infections, physical trauma, or a dearth of blood flow to that part of the bone.
[1] There is little evidence to support the theory of cavitation in the jawbone, and their diagnosis is highly controversial.
[2] Proponents claim they primarily affect the jawbone, yet that cavitations are able to affect any bone.
[3] Jawbone cavitations, also called neuralgia-inducing cavitational osteonecrosis (NICO) if they are associated with pain, might be extraction sites in the jaw that have not healed.