Objective:To measure the craniofacial soft tissue thickness in female adolescent orthodontic treatment thufferer in Chongqing and to study the craniofacial soft tissue thickness character in female adolescent orthodontic treatment thufferer in Chongqing

analyze the difference of craniofacial soft tissue thickness in Class I

Class II and Class III.Methods:Craniofacial soft tissue thickness at 14 landmarks were measured with DR and statistically analyzed in 60 female adolescent orthodontic treatment thufferers in Chongqing.Results:The measured values were from 5.11±0.52 to 14.18±1.14mm.The craniofacial soft tissue thickness is the thinnest in the root of nose

but the thickest in the lower lip.Conclusions:There is siglificant difference in craniofacial soft tissue thickness among different positions of face in female adolescent orthodontic treatment thufferer in Chongqing.Soft tissue thickness plays the decisive role for individual appearance like the bone tissue.Except for nasal point

lower lip and mentolabial furrow

there are siglificant difference in the basis nasi

upper lip and mental region among Class I

Class II and Class III in female orthodontic treatment thufferer in Chongqing.