颏部位置对面部侧貌唇突度的影响  

Influence of chin prominence on anterior-posterior lip positions of facial profile

作　　者：苏盈盈[1] 王春玲[1] 刘东旭[1] 董仁萍[1] 李红[1] 

机构地区：[1]山东大学口腔医院正畸科,山东济南250012

出　　处：《上海口腔医学》2008年第6期598-602,共5页Shanghai Journal of Stomatology

摘　　要：目的:探讨颏部位置对侧貌唇突度的影响。方法:选取具有标准中国人面型的成年男性1名,描绘其头颅侧位片的侧貌轮廓,制作成剪影图作为标准侧貌,利用图像处理技术对标准侧貌的面突角进行变动,获得5张具有不同颏部位置(颏部位置正常、后缩5°、后缩10°、前突5°、前突10°)的剪影图。在此基础上,以E线为参考线,将各剪影图的上、下唇分别后移1mm和前移1mm各4次,每张剪影图分别得到9幅具有不同唇突度的侧貌图。选择180名大学生对侧貌图进行审美评价,从9种面型中选出最喜爱的3种。应用SPSS13.0软件包对评价结果进行统计学分析。结果:颏部位置正常时相对后缩的唇突度最受欢迎,最受欢迎的3种面型与其他面型的得分相比,差异有统计学意义(P<0.05);随着颏部位置的后缩,人群倾向于喜爱略微前突的唇部位置;而随着颏部位置的前突,人们则倾向于喜爱更加后缩的唇部突度。结论:颏部位置对美观侧貌的唇突度有显著影响,颏部位置不同,唇突度的审美标准亦不同。对不同错类型的临界拔牙患者进行矫治设计时,应考虑颏部位置对唇突度的影响。PURPOSE： To determine the influence of chin prominence on preferred lip position in profile. METHODS： The average profile was constructed from the profile of a young Chinese man who has typical Chinese facial profile. Changes in chin position were established by altering the antero-posterior position by protruding or retruding the chin in increments of 5° and 10° from the average profile. The lips were then protruded or retruded in lmm increments from the average profile and 9 silhouettes were arranged respectively. One hundred and eighty college students were asked to rate the top three most favored, well-balanced profiles.SPSS13.0 software package was used to compare the differences in the scores between the top three most favored profiles and the other profiles. RESULTS： Slightly retruded lip positions were preferred for the average profile.The scores in top three profiles were significantly larger than the other profiles （P〈0.05）; The raters tended to prefer more retruded lip positions as the facial convexity decreased and more protruded lip positions as the facial convexity increased. CONCLUSIONS： The chin position does significantly impact preferred lip position and different esthetic standards should be applied to the various profiles encountered in clinical practice.The results might be helpful in decisions between extraction and nonextraetion treatment in borderline cases.

关 键 词：颏部位置 唇突度 侧貌 面突角 

分 类 号：R783.5[医药卫生—口腔医学]