目的：以中国人群前额的形态与突度及与年龄性别、生长发育、骨性面型的关系的研究为基础，通过评估侧面轮廓各结构的美学特征，进一步探讨额头形态对面部整体美学的影响。

方法：在323张侧位片中分别通过鼻根点和前额切点的两条垂直于FH平面的平行线之间的距离测额突度值。109人对侧貌凹、凸、直面型进行美学评价时记录眼动路径。使用Photoshop调整标准侧貌照各结构并通过问卷方式统计出最合适的比例。在SPSS中使用one-way ANOVA和T-test分析额突度、额窦宽度及眼动数据，kappa's coefficient检验眼动和问卷结果的一致性，Pearson χ2 test和Fisher’s exact test分析问卷数据，置信度设定为95%。

结果：侧貌审美时眼睛和鼻子是最受关注的部位（P<0.05），且较均衡的面部比例是最可接受的。男性额头的一般形状较直女性则较圆，男性额头突出的平均值高于女性(P=0.000)，且额部突起与额窦深度显著相关（P=0.009）。额部形态对整个侧貌吸引力会产生影响（P<0.05），在不同的突度的各面部结构中，唇部突度对侧貌的影响最大（P<0.05）。

结论：额部形态对侧貌美学会产生一定影响, 正畸治疗在考虑软组织终末状态时应考虑额部形态以达到整体协调。

Introduction This study is to explore the impact of forehead morphology on the overall aesthetics by evaluating the height and prominence of each part of the lateral profile to conduct a holistic aesthetic study and determining the visual attention to different lateral facial profiles using eye-tracking technology. 

Methods 323 lateral radiographs were performed, the straight distance between the vertical line of the FH plane through the nasal root and forehead point indicate the value of forehead prominence. The scanning paths of 109 participants were recorded by an eye-tracking device when observed facial profiles. A favorite photo was selected from five collections of lateral profiles to explore the aesthetic relationship between the forehead and other parts. Data variances were analyzed using SPSS.

Results The eyes and nose were the most important in lateral profile aesthetic judgment (P<0.05), orthodontists also concerned about the mouth(P<0.05). Higher facial attractiveness when the facial trisection ratio is approximated. The lower part especially the lip was chosen as the reference for aesthetic judging of the forehead and the coordination of the entire face. The average value of forehead protrusion for males is higher than females (P=0.024). 

Conclusion  Forehead is essential for aesthetic assessment of the entire face and the overall direction of the aesthetic opinion of a well-balanced face is accessible to all groups.