A lateral cephalometric study of perioral soft tissue of the sbjects with ClassⅡDivisionⅠand various verti-cal patterns

VernacularTitle:Ⅱ类Ⅰ分类不同垂直骨面型成人口周软组织特征的头影测量分析
Author: Tao WU ; Binjie SHAO ; Hongbing MO
Keywords: Class II Division I; Vertical skeletal pattern; Cephalometrics; Perioral soft tissue
From: Journal of Practical Stomatology 2016;32(6):861-864
CountryChina
Language:Chinese
Abstract: Objective:To study the perioral soft tissue characteristics of the subjects with ClassⅡDivisionⅠand various vertical pat-terns. Methods:Lateral cephalograms of 90 adults ( half men, half women) were divided into 3 groups based on GoGn-SN angle:low angle, normal angle and high angle(n=30). The perioral soft tissues were measured and compared for the determination of the vertical skeletal variables influencing soft tissue characteristics. Results: The subjects with low angle showed significantly smaller values than those with high angle for basic lower lip thickness and lower lip length(P<0. 05). Most measurements of soft tissue thickness were greater in men than in women in all groups, especially for basic upper lip thickness and upper lower lip thickness(P<0. 05). Conclu-sion:Orthodontists need to pay more attention to the differences of perioral soft tissue in the subjects with various vertical patters to ob-tain balance of the facial harmony in orthodontic treatment.