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KMID : 0896020070370010045
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Korean Journal of Oral and Maxillofacial Radiology
2007 Volume.37 No. 1 p.45 ~ p.51
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Three dimensional CT analysis of facial asymmetry
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Yoon Suk-Ja
Lim Hoi-Jeong
Kang Byung-Cheol
Hwang Hye-Nam
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Abstract
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Purpose : This study aimed to identify the range of normal facial asymmetry using three-dimensional CT and to develop a simple method of diagnosis of facial asymmetry.
Materials and Methods : Twenty eight adults with normal occlusion (16 males and 12 females; mean age 24 years and 1 month) were selected, whose faces were assessed to be symmetric by an orthodontist. Three-dimensional
reconstructions were obtained utilizing spiral CT scans and an oral and maxillofacial radiologist evaluated nineteen anatomic landmarks in three-dimensional coordinates. Facial asymmetry index of each landmark was caluculated.
Results : The range of normal facial asymmetry of each landmark was identified using mean and standard deviation of facial asymmetry index.
Conclusions : The range of normal facial asymmetry identified in this study may be used as a diagnostic standard for facial asymmetry analysis. (Korean J Oral Maxillofac Radiol 2007; 37 : 45-51)
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KEYWORD
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Tomography Spiral Computed, Facial Asymmetry, Standards
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