The relationship between FH-E line angle and Chinese beauty profile: silhouette, photometric analysis and clinical application

• Main Authors: Chen, Chien-Feng, 陳建鋒
• Other Authors: Chen, Yuan-Wu
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/c45r8x

碩士 === 國防醫學院 === 牙醫科學研究所 === 107 === Objectives The pursuit of beauty and charm has forever been an aim of human beings, but “beauty” is difficult to define. This study investigated the relationship between the Frankfort horizontal plane- aesthetic line (FH–E line) angle and the Chinese beauty profile. Materials and methods We altered the incline of the E-line of silhouettes using Photoshop 6.0 and used a questionnaire to ask 322 laypersons to select a favorite profile. We also collected 66 photographs of the 10 most popular male and female Chinese celebrities for 2010–2018 from the network and measured the angle of the FH plane and E-line. Retrospective analysis was performed to assess the change of the FH–E line angle of 15 orthognathic surgery patients and the results were compared with the celebrities. Results The FH–E line angle of the favorite silhouette identified in the questionnaire is 50° for women and 60° for men. The mean and range values of the FH–E line angle are sequentially 59.39° ± 3.97° (range 51°–67°) for female stars and 60.67° ± 4.06° (range 53°–70°) for male stars. The average preoperative FH–E line angle in female and male patients was 68.0° ± 3.56° and 68.33° ± 1.70°, respectively, and the postoperative average angle for female and male patients was 61.58° ± 3.87° and 62.33° ± 1.70°, respectively. Apply the results to clinical practice in 3D surgical simulation. Conclusions A similar FH–E line angle was found by comparing the postoperative orthognathic surgery patients and famous movie stars through photographic analysis. The FH–E line angle could be a major reference angle in Chinese populations.