Abstract:

Objective To measure the depth of the facial soft tissue of youths in Cha
ngchun in China,and to provide the data for the craniofacial remodeling in
forensic medicine. Methods The facial tissue depth was measured by ultrasound on a
sample of 113 Changchun Area youths in China. All youths were divided into different groups according different BMI and genders.

The 19 points at the left face were used to acquire the data. The ultrasound’s frequency was 11.4 MHz and the touching area was 8.5 mm×45.5 mm.The facial soft tissue depth differences were analyzed between different groups. Results Regardless of gender,the facial soft tissue of
cheek region,especially in supra-M2 and Infra-M2,was the thinnest compared with the  other regions for the youths in Changchun area. The results of t-test,A
NOVA and Pearson’s correlation test indicated that the tissue depth at 11 points of females and 14 points of males were related to BMI significantly.The 12 points varied significantly between the gender,and the Rhinion,Alare curvature,and Mid-philtrum three 
points were not related to BMI（r=－0.152，r=0.195，r=0.157）.The facial tissue depth of the females was thick
er than that of the males.Conclusion The depth of the facial soft tissue of youths in Changchun in China is affected
by BMI,gerder,and so on.The measurement can provide the data for facial reconstruction and the points not related to BMI may be the original points of craniofac
ial reconstruction.

Key words: facial soft tissue , thickness;ultrasound;Changchun area;Han nationality;young;facial reconstruction