The purpose of this study was to compare preferred facial profiles rated by different age groups. An average profile of each gender was constructed from subjects with normal occlusions. Each average profile was located in the centre, and then the lips were protruded or retruded in six 1mm increments in each direction. 70 lay people were divided into 3 groups: young adult (20-39 years); middle-aged (40-54 years); and senior (55-70 years). They were asked to rank their 3 most preferred profiles for each gender. The distribution of the most pleasing profile was compared according to age groups by the Kruskal-Wallis test and according to the rater's gender by the Mann-Whitney U-test. There was a significant difference between the three age groups regarding the preferred male and female profiles (P<0.001). Both the middle-aged and the senior groups tended to select a slightly more retruded lip/flat profile than the young adult group. There was no gender dimorphism in the selection of the preferred profile. The young adult group preferred the straight profile while the middle-aged and senior groups favoured the slightly retruded profile. This may provide useful information for treatment planning in orthodontics and orthognathic surgery.

译文

这项研究的目的是比较不同年龄段的首选面部特征。从正常闭塞的受试者中构建每个性别的平均特征。每个平均轮廓位于中心,然后在每个方向上以六个1毫米的增量突出或重放嘴唇。70名外行人分为3组: 年轻人 (20-39岁); 中年 (40-54岁); 和老年人 (55-70岁)。他们被要求对每个性别的3个最喜欢的个人资料进行排名。通过Kruskal-Wallis测试根据年龄组比较了最令人愉悦的个人资料的分布,并通过Mann-Whitney u- test根据评估者的性别进行了比较。三个年龄组在首选男性和女性特征方面存在显着差异 (P<0.001)。与年轻的成年组相比,中老年组和老年组都倾向于选择略胜一筹的嘴唇/扁平轮廓。在选择首选特征时没有性别二态性。年轻的成年组更喜欢直率的轮廓,而中老年组则更喜欢略微被重述的轮廓。这可能为正畸和正颌手术的治疗计划提供有用的信息。

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