The vertical alveolar osteogenesis microdistractor device 8 wherein {HEAD ~ the chamber} of the fixed bracket is {TAIL ~ a bottomed chamber} 
is
The vertical alveolar osteogenesis microdistractor device 8 wherein { HEAD ~ the chamber } of the fixed bracket is { TAIL ~ a bottomed chamber }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL