Analysis of cephalometric indices which are consistent with subjective evaluation for facial asymmetry.

与面部不对称主观评价一致的头影测量指标分析。

• 批准号: 15592011
• 负责人: ARIJI Yoshiko
• 金额: $ 2.43万
• 依托单位: Aichi-Gakuin University School of Dentistry
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15592011/
• 关键词: Face : Asymmetry; Subjective evaluation; Cephalograph; 客観的評価; セファロ; MRI

The purpose of this study was to investigate the relationship between the subjective evaluation of facial asymmetry and cephalometric indices. Ten orthodontists subjectively evaluated the frontal photographs of 100 subjects and categorized them into three categories, ie, category I, symmetrical view ; category II, a little asymmetry not requiring treatment ; and category III, marked asymmetry requiring treatment. Seven indices on the frontal cephalographs were obtained and compared between the categories in order to define the characteristics of each category. No differences were found in any of the indices between categories I and II. Five indices showed differences between category III and the other categories. Among them, the distance of Me from the vertical reference line was the most relevant index for the subjective evaluation of facial asymmetry. When a discrepancy is found between skeletal measurements and a subjective evaluation, the influence of soft tissue structures should … More be considered in facial asymmetry.Next, we tried to determine the threshold of cephalometric indices, by which orthodontists subjectively differentiated patients requiring treatment for facial asymmetry (Group B) from those who did not (Group A) on the frontal photographs of 100 subjects. The frontal cephalographs of these 100 subjects were also analyzed for 5 indices. For each orthodontist, the threshold was determined by means of the discriminant analysis. As the number of subjects, who were judged to require treatment, increased, the threshold of cephalometric indices became small and the discriminant accuracy was reduced. Among the 5 indices evaluated, the distance of Me (mean : 4.28 mm) or maxillo-mandibular midline angle (mean : 4.31 degree), which were the indices related to the Me, showed the highest accuracy in all observers. The distance of the Me and the maxillo-mandibular midline angle appeared to be the most relevant indices for subjective evaluation of facial asymmetry and the threshold determined in the present study has the potential to contribute to the planning and evaluation of orthodontic treatments. Less

本研究的目的是探讨面部不对称的主观评价与头影测量指标之间的关系。10名正畸医生主观评估了100名受试者的正畸照片，并将其分为三类，即I类，对称视角；II类，轻微不对称，不需要治疗；以及III类，明显不对称，需要治疗。获得7项头颅正位片指标，并进行分类比较，以明确各分类的特点。第I类和第II类之间的任何一项指标都没有发现差异，而第III类与其他类别之间有5项指数存在差异。其中，我与垂直参照线的距离是面部不对称性主观评价的最相关指标。当骨骼测量和主观评估之间发现差异时，软组织结构的影响应该…接下来，我们试图确定头影测量指数的阈值，根据该阈值，正畸医生主观地在100名受试者的正面照片上区分需要面部不对称治疗的患者(B组)和不需要治疗的患者(A组)。同时对100例受试者的头颅正位片进行5项指标分析。对于每个正畸医生，通过判别分析来确定阈值。随着被判断为需要治疗的人数的增加，头影测量指标的阈值变小，判别准确率降低。在所评价的5项指标中，与我相关的距离(平均：4.28 mm)或上颌中线角(平均：4.31度)在所有观察者中显示出最高的准确性。Me与上颌中线角的距离是面部不对称性主观评价的最相关指标，本研究所确定的阈值可能有助于正畸治疗的规划和评价。较少

项目成果

3D-CT evaluation of facial symmetry in normal subjects an facial asymmetry patients.

正常人和面部不对称患者面部对称性的 3D-CT 评估。

• 发表时间: 2003
• 期刊: Dentomaxillofac Radiol 32・3
• 作者: Katsumata A;Iida Y;Fujishita M;Ariji Y;Ariji E.
• 通讯作者: Ariji E.

Katsumata A, Iida Y, Fujishita M, Ariji Y, Ariji E.: "3D-CT evaluation of facial symmetry in normal subjects and facial asymmetry patients."Dentomaxillofac Radiol. 32(3). 208-208 (2003)

Katsumata A、Iida Y、Fujishita M、Ariji Y、Ariji E.：“正常受试者和面部不对称患者面部对称性的 3D-CT 评估。”Dentomaxillofac Radiol。

Can cephalometric indices and subjective evaluation be consistent for facial asymmetry?

面部不对称的头影测量指标和主观评价是否一致？

• 发表时间: 2005
• 期刊: Angle Orthod 75・3
• 作者: Masuoka N;Momoi Y;Ariji Y;Nawa H;Muramatsu A;Goto S;Ariji E.
• 通讯作者: Ariji E.

川俣明敏, 藤下昌巳, 前多雅仁, 有地淑子, 有地榮一郎: "顔面非対称症例骨硬組織の3DCT対称性分析"歯放. 43増. 36-36 (2003)

Akitoshi Kawamata、Masami Fujishita、Maahito Maeda、Yoshiko Ariji、Eiichiro Ariji：“面部不对称情况下骨硬组织的 3DCT 对称性分析”Tohoho 43 vol. 36-36 (2003)

Discriminative thresholds of cephalometric indices in subjective evaluation for facial asymmetry.

面部不对称主观评价中头影测量指数的判别阈值。

• 发表时间: 2004
• 期刊: The 5th Asian Congress of Oral and Maxillofacial Radiology, Program & Abstracts
• 作者: Ariji Y;Masuoka N;Muramatsu A;Goto S;Ariji E.
• 通讯作者: Ariji E.