1.Correction of facial asymmetry using various vascularized free tissue transfers.
Yong Hyun YUN ; Rong Min BAEK ; Jae Ock OH ; Joon CHOE ; Se Min BAEK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(5):1014-1022
No abstract available.
Facial Asymmetry*
3.A case of reconstruction of facial asymmetry following Caldwell-Lucoperation.
Byung Cheol KIM ; In Gug NA ; Young Soo RHO ; Hyun Joon LIM
Korean Journal of Otolaryngology - Head and Neck Surgery 1992;35(4):572-577
No abstract available.
Facial Asymmetry*
4.Facial asymmetry.
Korean Journal of Orthodontics 1991;21(2):251-258
No abstract available.
Facial Asymmetry*
5.Validity of midsagittal reference planes constructed in 3D CT images.
Ye Na JEON ; Ki Heon LEE ; Hyeon Shik HWANG
Korean Journal of Orthodontics 2007;37(3):182-191
OBJECTIVE: The purpose of this study was to evaluate the validity of midsagittal reference (MSR) planes constructed in maxillofacial 3D images. METHODS: Maxillofacial computed tomography (CT) images were obtained in 36 normal occlusion individuals who did not have apparent facial asymmetry, and 3D images were reconstructed using a computer software. Six MSR planes (Cg-ANS-Ba, Cg-ANS-Op, Cg-PNS-Ba, Cg- PNS-Op, FH perpendicular (Cg, Ba), FH perpendicular (Cg, Op)) were constructed using the landmarks located in the midsagittal area of the maxillofacial structure, such as Cg, ANS, PNS, Ba and Op, and FH plane constructed with Po and Or. The six pairs of landmarks (Z, Fr, Fs, Zy, Mx, Ms), which represent right and left symmetry in the maxillofacial structure, were selected. Statistically significant differences of the right and the left measurements were examined through t-test, and the difference of the right and the left measurement was compared among the six MSR planes. RESULTS: The distances from the right and the left landmarks in each pair to each MSR plane did not show a statistically significant difference. The reproducibility of the landmark identification was excellent. CONCLUSION: All the six planes constructed in this study can be used as a MSR plane in maxillofacial 3D analysis, particularly, the planes including Cg and ANS.
Facial Asymmetry
6.The Attractiveness of facial asymmetry in normal population.
Journal of the Korean Society of Aesthetic Plastic Surgery 2000;6(2):165-170
No Abstract Available.
Facial Asymmetry*
7.Benefits of lateral cephalogram during landmark identification on posteroanterior cephalograms.
Sel Ae HWANG ; Jae Seo LEE ; Hyeon Shik HWANG ; Kyung Min LEE
The Korean Journal of Orthodontics 2019;49(1):32-40
OBJECTIVE: Precise identification of landmarks on posteroanterior (PA) cephalograms is necessary when evaluating lateral problems such as facial asymmetry. The aim of the present study was to investigate whether the use of lateral (LA) cephalograms can reduce errors in landmark identification on PA cephalograms. METHODS: Five examiners identified 16 landmarks (Cg, N, ANS, GT, Me, RO, Lo, FM, Z, Or, Zyg, Cd, NC, Ms, M, and Ag) on 32 PA cephalograms with and without LA cephalograms at the same time. The positions of the landmarks were recorded and saved in the horizontal and vertical direction. The mean errors and standard deviation of landmarks location according to the use of LA cephalograms were compared for each landmark. RESULTS: Relatively small errors were found for ANS, Me, Ms, and Ag, while relatively large errors were found for N, GT, Z, Or, and Cd. No significant difference was found between the horizontal and vertical errors for Z and Or, while large vertical errors were found for N, GT, and Cd. The value of identification error was lower when the landmarks were identified using LA cephalograms. Statistically significant error reductions were found at N and Cd with LA cephalograms, especially in the vertical direction. CONCLUSIONS: The use of LA cephalograms during identification of landmarks on PA cephalograms could help reduce identification errors.
Facial Asymmetry
8.Cases of the surgical correction of facial asymmetry
Hong Yell HUH ; Sung Ki MIN ; Sang Ki CHO ; In Won JEONG
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1991;13(2):191-198
No abstract available.
Facial Asymmetry
9.Three-dimensional symmetry and parallelism of the skeletal and soft-tissue poria in patients with facial asymmetry.
Min Gun KIM ; Jin Woo LEE ; Kyung Suk CHA ; Dong Hwa CHUNG ; Sang Min LEE
The Korean Journal of Orthodontics 2014;44(2):62-68
OBJECTIVE: The purpose of this study was to examine the symmetry and parallelism of the skeletal and soft-tissue poria by three-dimensional (3D) computed tomographic (CT) imaging. METHODS: The locations of the bilateral skeletal and soft-tissue poria in 29 patients with facial asymmetry (asymmetric group) and 29 patients without facial asymmetry (symmetric group) were measured in 3D reconstructed models of CT images by using a 3D coordinate system. The mean intergroup differences in the anteroposterior and vertical angular deviations of the poria and their anteroposterior and vertical parallelism were statistically analyzed. RESULTS: The symmetric and asymmetric groups showed significant anteroposterior angular differences in both the skeletal and the soft-tissue poria (p = 0.007 and 0.037, respectively; Mann-Whitney U-test). No significant differences in the anteroposterior and vertical parallelism of the poria were noted (p < or = 0.05; Wilcoxon signed-rank test). CONCLUSIONS: In general, the skeletal poria are parallel to the soft-tissue poria. However, patients with facial asymmetry tend to have asymmetric poria.
Facial Asymmetry*
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Humans
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Poria*
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