Cross-sectional study of the mandibular body in patients with facial asymmetry.
10.5125/jkaoms.2011.37.2.109
- Author:
Jae Yeol LEE
1
;
Yong Il KIM
;
Dae Seok HWANG
;
Yong Deok KIM
;
Sang Hun SHIN
;
Uk Kyu KIM
;
In Kyo CHUNG
Author Information
1. Depatment of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, Yangsan, Korea. dshwang@pusan.ac.kr
- Publication Type:Original Article
- Keywords:
Facial asymmetry;
Cross-sectional anatomy;
Mandibular nerve
- MeSH:
Adult;
Anatomy, Cross-Sectional;
Facial Asymmetry;
Hand;
Humans;
Mandible;
Mandibular Nerve;
Orthognathic Surgery
- From:Journal of the Korean Association of Oral and Maxillofacial Surgeons
2011;37(2):109-113
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
INTRODUCTION: To correct the facial asymmetry by mandibular jaw surgery, it is important to know the anatomy of the mandible including the mandibular canal positioning of patients with facial asymmetry. This study was performed to evaluate the differences in the cross-sectional surface in the body of the mandible between the deviated side and opposite side in patients with facial asymmetry. MATERIALS AND METHODS: The study was conducted on 37 adult patients composed of 2 groups, the asymmetry group (n=20) and non-asymmetry group (n=17). Using the cross-sectional computed tomography (CT) images, the distance from the buccal aspect of the mandibular canal to the outer aspect of the buccal cortex, distance from the buccal aspect of the mandibular canal to the inner aspect of the buccal cortex, distance from the inferior aspect of the mandibular canal to the inferior border of the mandible, thickness of the mandible, and cross-sectional surface area of the mandible were measured in each side of the mandible. RESULTS: The cross-sectional area of the mandible including the mandibular canal positioning in the deviated side was not statistically different from the opposite side in the asymmetry group. Only the distance from the inferior aspect of the mandibular canal to the inferior border of the mandible in the ramus area of the deviated side was significantly longer than opposite side. On the other hand, the bucco-lingual width of the asymmetry group was thinner than the non-asymmetry group. CONCLUSION: The cross-sectional area including the mandibular canal of the mandible did not appear to be modified by the facial asymmetry.
