Wang Yuan-yuan, Guo Cong-cong, Zhou Chen, Fan Ming-ling, Wang Wei-cai, Bao Bai-cheng
Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat- Sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, Guangdong Province, China.
Shanghai Kou Qiang Yi Xue. 2012 Dec;21(6):668-72.
To investigate facial profile preferences of orthodontic patients and determine whether the patient's age and sex were influential factors in the esthetic perception for providing reference for clinical practice.
Profile digital photographs of each patient were used. Changes in facial convexity were established by altering the position of mandible incrementally with Photoshop 7.0. Thus profile images of various degrees of mandiblular anteroposterior discrepancy for each patient was generated. Then an electronic questionnaire was designed and administered to investigate tolerable boundary values for mandibular retrognathism, tolerable boundary values for mandibular prognathism and most pleasing profiles of 203 subjects (average age 19.2±6.0 years; 70 males, 133 females). Differences between male and female profiles in the esthetic perception of patients were analyzed by Wilcoxon matched-pairs signed ranks test. Comparison of esthetics perception for male and female profiles regarding patient's sex and age was made by Wilcoxon rank sum test of two independent samples. All statistical analysis was performed using SPSS 17.0 software package.
The zone of acceptability of facial convexity was 168°-180° for male model and 160°-172° for female model. The most pleasing profile was 172° for male and 168° for female. There was no significant difference between male and female patients in facial profile preferences (P>0.05). The differences in facial profile preferences between adult group and immature group were statistically significant (P<0.05). In the comparison of age groups, the adult group preferred bigger facial convexity angles than immature group for male and female retrognathia profile, male prognathia profile and male most pleasing profile.
The zone of acceptability of facial convexity and the most pleasing profile exist in patients' esthetic perception of profile. There is difference between male and female profiles in the esthetic perception. The facial profile preferences of orthodontic patients are influenced by age, not by sex.
调查正畸患者对面部侧貌的偏好，并确定患者的年龄和性别是否为审美认知中的影响因素，为临床实践提供参考。
使用每位患者的侧貌数码照片。通过Photoshop 7.0逐步改变下颌位置来确定面部凸度的变化。由此生成每位患者不同程度下颌前后差异的侧貌图像。然后设计并发放一份电子问卷，以调查203名受试者（平均年龄19.2±6.0岁；男性70名，女性133名）对下颌后缩的可耐受边界值、下颌前突的可耐受边界值以及最满意侧貌。采用Wilcoxon配对符号秩检验分析患者审美认知中男性和女性侧貌的差异。通过两个独立样本的Wilcoxon秩和检验比较男性和女性侧貌在患者性别和年龄方面的审美认知。所有统计分析均使用SPSS 17.0软件包进行。
男性模型面部凸度的可接受范围为168°-180°，女性模型为160°-172°。最满意的侧貌男性为172°，女性为168°。男性和女性患者在面部侧貌偏好方面无显著差异（P>0.05）。成人组和未成年组在面部侧貌偏好上的差异具有统计学意义（P<0.05）。在年龄组比较中，对于男性和女性后缩侧貌、男性前突侧貌以及男性最满意侧貌，成人组比未成年组更喜欢更大的面部凸度角。
患者对面部侧貌的审美认知中存在面部凸度的可接受范围和最满意侧貌。男性和女性侧貌在审美认知上存在差异。正畸患者的面部侧貌偏好受年龄影响，而非性别。
