A lateral cephalometric study of perioral soft tissue of the sbjects with ClassⅡDivisionⅠand various verti-cal patterns
10.3969/j.issn.1001-3733.2016.06.025
- 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.