Y axis to Frankfort horizontal plane using constructed Gnathion:Angle:Pt:Skull:Qn:XR.measured
y axis to frankfort horizontal plane using constructed gnathion:angle:pt:skull:qn:xr.measured
Y axis to Frankfort horizontal plane using constructed Gnathion:Angle:Pt:Skull:Qn:XR.measured
y axis to frankfort horizontal plane using constructed gnathion:angle:pt:skull:qn:xr.measured