Three-dimensional symmetry and parallelism of the skeletal and soft-tissue poria in patients with facial asymmetry / 대한치과교정학회지
The Korean Journal of Orthodontics
;
: 62-68, 2014.
Article
in English
| WPRIM
| ID: wpr-162271
ABSTRACT
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Facial Asymmetry
/
Poria
Limits:
Humans
Language:
English
Journal:
The Korean Journal of Orthodontics
Year:
2014
Type:
Article
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