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Morphologic relationship between the cranial base and the mandible in patients with facial asymmetry and mandibular prognathism

Title
Morphologic relationship between the cranial base and the mandible in patients with facial asymmetry and mandibular prognathism
Authors
Sung-Jin Kim;Kee-Joon Lee;Hyoung-Seon Baik;Sang-Hwy Lee
Issue Date
2013
Journal Title
American Journal of Orthodontics and Dentofacial Orthopedics
ISSN
0889-5406
Citation
American Journal of Orthodontics and Dentofacial Orthopedics, Vol.144(3) : 330~340, 2013
Abstract
INTRODUCTION: This study was conducted to measure the dimensional changes in the cranial base and the mandible in patients with facial asymmetry and mandibular prognathism, and to examine the morphologic relationship between asymmetries of the cranial base and the mandible. METHODS: The patients were 60 adults with mandibular prognathism, divided into a symmetry group (menton deviation, <2 mm; n = 30) and an asymmetry group (menton deviation, >4 mm; n = 30) according to the degree of menton deviation. Three-dimensional computed tomography scans were obtained with a spiral scanner. Landmarks were designated on the reconstructed 3-dimensional surface models. Linear, angular, and volumetric measurements of the cranial base and mandibular variables were made. RESULTS: In the asymmetry group, the hemi-base, anterior cranial base, and middle cranial base volumes were significantly larger (P <0.01), and crista galli to sphenoid, sphenoid to petrous ridge, anterior clinoid process to petrous ridge, and vomer to petrous ridge lengths were significantly longer (P <0.05) on the nondeviated side than on the deviated side. Menton deviation was significantly correlated with the difference in hemi-base volume, and ramal volume was significantly correlated with the difference in hemi-base and middle cranial base volumes between the nondeviated and deviated sides (P <0.05). CONCLUSIONS: In patients with facial asymmetry and mandibular prognathism, cranial base volume increased on the nondeviated side and was also correlated with mandibular asymmetry.
URI
http://www.sciencedirect.com/science/article/pii/S0889540613005659

http://ir.ymlib.yonsei.ac.kr/handle/22282913/87711
DOI
10.1016/j.ajodo.2013.03.024
Appears in Collections:
1. 연구논문 > 2. College of Dentistry > Dept. of Oral and Maxillofacial Surgery
1. 연구논문 > 2. College of Dentistry > Dept. of Orthodontics
Yonsei Authors
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