{HEAD ~ The device} can also be used for {TAIL ~ distraction} of a resorbed alveolar ridge 
{ HEAD ~ The device } can also be used for { TAIL ~ distraction } of a resorbed alveolar ridge
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH