Position Effect on Facial Soft Tissue Depths: A Sonographic Investigation.

The head is positioned erect for an approximation; yet most facial soft tissue depths (FSTD) used are measured from supine subjects. Depth difference might be significant, but there is a paucity of data to verify. This study compared erect and supine values for 17 landmarks from 30 healthy New Zealand (European population affinity) women (18-30 or 40-55 years) in erect then supine positions.