Journal of Technologic Dentistry (대한치과기공학회지)
- Volume 27 Issue 1
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- Pages.27-39
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- 2005
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- 1229-3954(pISSN)
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- 2288-5218(eISSN)
Analysis of Facial Asymmetry with Three-Dimensional Morphometry
3차원 영상에 의한 안면 비대칭의 분석
- Cho, Hong-Kyu (Dept. of Dental Lab. Technology, Kwangju Health College)
- 조홍규 (광주보건대학 치기공과)
- Published : 2005.07.01
Abstract
This study is to show the qualitative analytic methods of facial asymmetry with three-dimensional morphometry and find out asymmetry change resulted from enlarging three local regions. Steel balls (1.2mm in diameter) were attached in twenty seven landmarks of a symmetrical artificial human skull. This artificial human skull was used as experimental materials. Twelve different asymmetrical artificial human skulls were formed by gradually enlarging the mandibular body length, gonial angle, and ramus height of the left hemiface. From the three-dimensional morphometry of each skull type, nine local area measurements and three total sum area measurements(representing the mandibular area, maxillary area, and lower facial area) were acquired and made into the surface area asymmetry degree. Menton deviation itself was used as the surface area asymmetry degree while right-left percentages were used in the other measurements. These surface area asymmetry degrees were compared with each other to find out asymmetry change according to the degree of actual facial asymmetry. Through the statistical analysis, following results were obtained. The results were as follows: 1. Left maxillary area of artificial human skull was 7.13