Tanikawa Chihiro, Takada Kenji, van Aalst John, Trotman Carroll Ann
Department of Orthodontics, The School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
Cleft Palate Craniofac J. 2010 Nov;47(6):611-22. doi: 10.1597/09-099. Epub 2010 Mar 12.
To measure and compare three-dimensional lip form in participants with a repaired cleft lip and noncleft control participants.
Retrospective study. Three-dimensional facial images of each participant were obtained.
The sample consisted of two groups: a repaired cleft lip group (n = 57) and a noncleft "normal" group (n = 28).
Thirty-four variables that described the features of each participant's lip form were extracted from the image data. A t test was used for each variable to test for significant differences between the groups, and a mathematical technique was used to categorize the lip forms in both groups.
Seventeen variables showed significant between-group differences. The differences were focused on the free edges of the upper and lower lip vermilion borders, upper and lower lip protrusion, and lip symmetry. Lip forms were described by seven categories. Participants with cleft lip were represented in all categories but fell mainly into two categories at one extreme. Noncleft participants were represented in five categories but also exclusively in two categories at the other extreme from participants with a repaired cleft lip. The findings show greater variation in lip form for the participants with a cleft lip.
Three-dimensional lip form in participants with a repaired cleft lip was found to have greater variation and to be significantly different from that in noncleft participants. This method can be used to assess surgical outcomes of lip form.
测量并比较唇裂修复患者与非唇裂对照者的三维唇部形态。
回顾性研究。获取每位参与者的三维面部图像。
样本包括两组：唇裂修复组（n = 57）和非唇裂“正常”组（n = 28）。
从图像数据中提取34个描述每位参与者唇部形态特征的变量。对每个变量进行t检验以检测两组之间的显著差异，并使用一种数学技术对两组的唇部形态进行分类。
17个变量显示出组间显著差异。差异集中在上、下唇红唇缘的游离缘、上、下唇突出度和唇部对称性。唇部形态分为七类。唇裂患者出现在所有类别中，但主要集中在一个极端的两类。非唇裂参与者出现在五类中，但也仅集中在与唇裂修复患者相反极端的两类中。研究结果表明唇裂患者的唇部形态变化更大。
发现唇裂修复患者的三维唇部形态变化更大，且与非唇裂患者有显著差异。该方法可用于评估唇部形态的手术效果。
