Im curious how effective one would be. It's different an xray and it seems like a good alternative to possibly finding a cavitation. 

"A bone scan is a nuclear medicine test. This means that the procedure uses a very small amount of a radioactive substance, called a tracer. The tracer is injected into a vein. Areas where too much or too little tracer has been absorbed by the body may indicate cancer"  

It supposedley picks up any abnormalities and possible infections in the bone. I know how terrible standard x rays are for finding cavitations.

A WBC(white blood cell) Scan also seems interesting in regards to finding jaw cavitations. They extract the white blood cells from your blood mix it with tracer, re-inject it and follow it to see where there there might be any increased white blood cell activity pointing to possible infections. I think these tests are good because many times a dentist or oral surgeoun simply believe you dont have any problems because they just dont see anything in xrays, mri's, and ct scans. But if a WBC scan or bone test do confirm some kind of activity you basically prove them wrong.