Knight Helen, Keith Olly
Department of Orthodontics, Royal United Hospital NHS Trust, Bath, UK.
Eur J Orthod. 2005 Aug;27(4):340-8. doi: 10.1093/ejo/cji042.
The first aim of this investigation was to assemble a group of photographs of 30 male and 30 female faces representing a standardized spectrum of facial attractiveness, against which orthognathic treatment outcomes could be compared. The second aim was to investigate the influence of the relationship between ANB differences and anterior lower face height (ALFH) percentages on facial attractiveness. The initial sample comprised standardized photographs of 41 female and 35 male Caucasian subjects. From these, the photographs of two groups of 30 male and 30 female subjects were compiled. A panel of six clinicians and six non-clinicians ranked the photographs. The results showed there to be a good level of reliability for each assessor when ranking the photographs on two occasions, particularly for the clinicians (female subjects r = 0.76-0.97, male subjects r = 0.72-0.94). Agreement among individuals within each group was also high, particularly when ranking facial attractiveness in male subjects (female subjects r = 0.57-0.84, male subjects r = 0.91-0.94). Antero-posterior (AP) discrepancies, as measured by soft tissue ANB, showed minimal correlation with facial attractiveness. However, a trend emerged that would suggest that in faces where the ANB varies widely from 5 degrees, the face is considered less attractive. The ALFH percentage also showed minimal correlation with facial attractiveness. However, there was a trend that suggested that greater ALFH percentages are considered less attractive in female faces, while in males the opposite trend was seen. Either of the two series of ranked photographs as judged by clinicians and non-clinicians could be used as a standard against which facial attractiveness could be assessed, as both were in total agreement about the most attractive faces. However, to judge the outcome of orthognathic treatment, the series of ranked photographs produced by the non-clinician group should be used as the 'standard' to reflect lay opinion.
本研究的首要目的是收集一组30张男性和30张女性面部照片，这些照片代表了面部吸引力的标准范围，可用于比较正颌治疗效果。第二个目的是研究ANB差异与前下脸高度（ALFH）百分比之间的关系对面部吸引力的影响。初始样本包括41名女性和35名男性白种人受试者的标准化照片。从这些照片中，挑选出两组各30名男性和30名女性受试者的照片。由六名临床医生和六名非临床医生组成的小组对照片进行了排名。结果显示，每位评估者在两次对照片进行排名时都具有较高的可靠性，尤其是临床医生（女性受试者r = 0.76 - 0.97，男性受试者r = 0.72 - 0.94）。每组个体之间的一致性也很高，特别是在对男性受试者的面部吸引力进行排名时（女性受试者r = 0.57 - 0.84，男性受试者r = 0.91 - 0.94）。通过软组织ANB测量的前后（AP）差异与面部吸引力的相关性最小。然而，出现了一种趋势，即当ANB与5度相差很大时，面部被认为吸引力较低。ALFH百分比与面部吸引力的相关性也最小。然而，有一种趋势表明，较高的ALFH百分比在女性面部被认为吸引力较低，而在男性中则出现相反的趋势。临床医生和非临床医生评判的两组排名照片中的任何一组都可以用作评估面部吸引力的标准，因为两者对最具吸引力的面部完全一致。然而，为了评判正颌治疗的效果，应由非临床医生小组制作的排名照片系列用作反映外行观点的“标准”。
