Three-dimensional symmetry and parallelism of the skeletal and soft-tissue poria in patients with facial asymmetry
1
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
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 ≤ 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.
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 ≤ 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.
참고문헌 (21)
- Kim YH, "Asymmetry of the sphenoid bone and its suitability as a reference for analyzing craniofacial asymmetry", Am J Orthod Dentofacial Orthop, 124, pp.656~662 (2003)
- Katsumata A, "3D-CT evaluation of facial asymmetry", Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 99, pp.212~220 (2005)
- Park SH, "A proposal for a new analysis of craniofacial morphology by 3-dimensional computed tomography", AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS, 129, pp.600~e23 (2006)
- 김왕식, "안면비대칭자의 3차원 전산단층사진 분석에서경.연조직간 비대칭 정도 차이", 대한치과교정학회지, 35(3), pp.163~173 (2005), 대한치과교정학회
- Ghom AG, "Textbook of oral radiology" (2008), Elsevier (A Division of Reed Elsevier India Pvt. Limited)
- Ahn JS, "Relationship between perception of facial asymmetry and posteroanterior cephalometric measurements", Korean J Orthod, 31, pp.489~498 (2001)
- Lee MS, "Assessing soft-tissue characteristics of facial asymmetry with photographs", Am J Orthod Dentofacial Orthop, 138, pp.23~31 (2010)
- 김규선, "하안면부에서 입술의 돌출 정도와 안면 비대칭의 인지도에 관한 연구", 대한치과교정학회지, 36(6), pp.434~441 (2006), 대한치과교정학회
- Kwon TG, "A comparison of craniofacial morphology in patients with and without facial asymmetry--a three-dimensional analysis with computed tomography", Int J Oral Maxillofac Surg, 35, pp.43~48 (2006)
- Yoo SK, "Alignment of CT images of skull dysmorphology using anatomy-based perpendicular axes", PHYSICS IN MEDICINE AND BIOLOGY, 48, pp.2681~2695 (2003)
- Kitaura H, "Standardization of 3-D CT measurements for length and angles by matrix transformation in the 3-D coordinate system", Cleft Palate Craniofac J, 37, pp.349~356 (2000)
- 조진형, "3차원 전산화 단층촬영의 Nasion, Sella, Basion으로 구성된 정중 시상 평면과 정면 두부방사선 규격사진의 정중 시상 평면 비교", 대한치과교정학회지, 40(1), pp.6~15 (2010), 대한치과교정학회
- Grayson BH, "Analysis of craniofacial asymmetry by multiplane cephalometry", Am J Orthod, 84, pp.217~224 (1983)
- Peck S, "Skeletal asymmetry in esthetically pleasing faces", Angle Orthod, 61, pp.43~48 (1991)
- Maeda M, "3D-CT evaluation of facial asymmetry in patients with maxillofacial deformities", Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 102, pp.382~390 (2006)
- Captier G, "Plagiocephaly: morphometry of skull base asymmetry", Surg Radiol Anat, 25, pp.226~233 (2003)
- Huang MH, "The differential diagnosis of posterior plagiocephaly: true lambdoid synostosis versus positional molding", Plast Reconstr Surg, 98, pp.765~774 (1996)
- Lo LJ, "Plagiocephaly:differential diagnosis based on endocranial morphology", Plast Reconstr Surg, 97, pp.282~291 (1996)
- Mulliken JB, "Analysis of posterior plagiocephaly:deformational versus synostotic", Plast Reconstr Surg, 103, pp.371~380 (1999)
- Kane AA, "Mandibular dysmorphology in unicoronal synostosis and plagiocephaly without synostosis", Cleft Palate Craniofac J, 33, pp.418~423 (1996)
- St John D, "Anthropometric analysis of mandibular asymmetry in infants with deformational posterior plagiocephaly", J Oral Maxillofac Surg, 60, pp.873~877 (2002)