Ioi Hideki, Nakata Shunsuke, Nakasima Akihiko, Counts Amy L
Department of Orthodontics, Faculty of Dentistry, Kyushu University, Fukuoka, Japan.
Am J Orthod Dentofacial Orthop. 2005 Aug;128(2):206-11. doi: 10.1016/j.ajodo.2004.04.030.
Soft tissue analysis is a basic tool in planning orthodontic treatment. However, the components of a well-balanced Japanese facial profile have not yet been established. The purpose of this study was to assess the most-favored or most well-balanced profile from a series of facial silhouettes with varying anteroposterior lip positions by a group of Japanese orthodontists and a group of young adult Japanese dental students.
Average female and male profiles were constructed from the profiles of 30 Japanese men and women with normal occlusions. The lips in each average profile were protruded or retruded in 1-mm increments, and the 13 images were arranged with the average profile in the center. Forty two orthodontists and 42 dental students were asked to select the 3 most-favored, well-balanced profiles for each sex and rank them in order of preference.
Both the orthodontists and the students preferred a profile with slightly retruded lips. The dental students favored a more retruded lip position for women. The least-favored profile was the most protrusive.
These findings suggest that Japanese orthodontists and young adults prefer a retruded profile, even though Japanese profiles have historically been characterized by more convex facial features.
软组织分析是正畸治疗计划中的一项基本工具。然而，尚未确定平衡良好的日本面部轮廓的组成部分。本研究的目的是通过一组日本正畸医生和一组日本年轻成年牙科学生，从一系列具有不同前后唇位置的面部轮廓中评估最受青睐或最平衡的轮廓。
从30名具有正常咬合的日本男性和女性的轮廓构建平均男性和女性轮廓。每个平均轮廓中的嘴唇以1毫米的增量前突或后缩，13张图像以平均轮廓为中心排列。42名正畸医生和42名牙科学生被要求为每种性别选择3个最受青睐、平衡良好的轮廓，并按偏好顺序对其进行排名。
正畸医生和学生都更喜欢嘴唇略微后缩的轮廓。牙科学生更喜欢女性嘴唇更后缩的位置。最不受青睐的轮廓是最前突的。
这些发现表明，日本正畸医生和年轻人更喜欢后缩的轮廓，尽管从历史上看，日本人的面部特征更凸。
