Abstract
Cephalometric radiography with contrast media was developed for objective visualization of the tongue and the hyoid bone in a rest position. Its reliability and the influence of tipping the head on measurements were investigated in 28 and 7 normal adults, respectively.
The standard error for each measurement ranged from±0.3 mm to±1.3 mm, and tipping the head within±5° did not influence the measurement.
According to these results, it is concluded that this method has excellent reliability and is useful for objective visualization of the tongue and hyoid bcne positionings at rest.
