Department of Plastic & Reconstructive Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD.
Division of Plastic Surgery, Rutgers New Jersey Medical School, Newark, NJ.
J Craniofac Surg. 2022;33(2):552-556. doi: 10.1097/SCS.0000000000008187.
Traditional approaches to lower face contouring involve ostectomy of the mandibular angle or body. More recently, nonsurgical techniques have gained popularity, including neurotoxin injection to the masseter muscle. This study aims to evaluate layperson perceptions of patient attractiveness and personality traits following lower face contouring using either surgical or nonsurgical treatment.
In this survey study distributed via Amazon's Mechanical Turk, respondents viewed a series of 14 patient images obtained in clinic before and after surgical or nonsurgical jawline slimming, or without any facial aesthetic procedure. Respondents rated changes in attractiveness and personality trait scores between the before and after image (score: -50 to 50, with 50 representing the greatest posttreatment increase and 0 representing no change). We used descriptive statistics and multivariable regression to determine differences in respondent ratings between patient images.
A total of 415 respondents (mean age 38 years, 50.6% female) successfully completed the survey. Compared to patients who underwent nonsurgical treatment, those who received surgery had significantly greater increases in perceived attractiveness (P < 0.001), femininity (P < 0.001), friendliness (P < 0.001), intelligence (P < 0.001), trustworthiness (P < 0.001), financial wealthiness (P < 0.001), dominance (P < 0.01), and self-esteem (P < 0.001). Gonial angles increased and jaw widths decreased following both surgical and nonsurgical intervention, with no statistically significant difference between treatment groups.
From the layperson perspective, surgical compared to nonsurgical jawline contouring offers greater improvements in perceptions of attractiveness and favorable personality traits.
传统的下面部轮廓整形方法包括下颌角或下颌体截骨术。最近，非手术技术越来越受欢迎，包括咬肌注射神经毒素。本研究旨在评估非手术或手术治疗下面部轮廓整形后，普通人对患者吸引力和个性特征的看法。
在这项通过亚马逊的 Mechanical Turk 分发的调查研究中，受访者查看了一系列 14 名患者的图像，这些图像是在诊所拍摄的，分别是手术或非手术下颌线瘦身前后，或没有任何面部美容手术。受访者对前后图像之间的吸引力和个性特征评分变化进行评分（评分：-50 至 50，其中 50 代表最大的治疗后增加，0 代表没有变化）。我们使用描述性统计和多变量回归来确定患者图像之间受访者评分的差异。
共有 415 名（平均年龄 38 岁，50.6%为女性）受访者成功完成了调查。与接受非手术治疗的患者相比，接受手术的患者的吸引力（P<0.001）、女性气质（P<0.001）、友好（P<0.001）、智力（P<0.001）、可信度（P<0.001）、财富（P<0.001）、支配力（P<0.01）和自尊心（P<0.001）的评分显著增加。下颌角在手术和非手术干预后均增加，下颌宽度减小，但两组之间无统计学差异。
从普通人的角度来看，与非手术相比，手术下颌线整形能更好地改善吸引力和有利的个性特征。
