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Anatomical Topography of the Mandibular Symphysis in the Korean Population: A Computed Tomography Analysis

Authors
 Kyu An Lee  ;  Min-Soo Kim  ;  Ji-Youn Hong  ;  Jung-Seok Lee  ;  Seong-Ho Choi  ;  Jung-Kiu Chai  ;  Ui-Won Jung 
Citation
 CLINICAL ANATOMY, Vol.27(4) : 592-597, 2014 
Journal Title
 CLINICAL ANATOMY 
ISSN
 0897-3806 
Issue Date
2014
MeSH
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Anatomic Variation ; Asian Continental Ancestry Group ; Female ; Humans ; Male ; Mandible/anatomy & histology* ; Mandible/diagnostic imaging ; Middle Aged ; Reference Values ; Republic of Korea ; Tomography, X-Ray Computed ; Young Adult
Keywords
anatomy ; chin ; computed tomography ; mandible ; risk assessment
Abstract
The objective of this study was to reveal the topography of the mandibular symphysis according to gender and age in the Korean population using computed tomography (CT) to provide a mean anatomical database for the safety zone during block bone harvesting. The following parameters were measured in CT images taken from Korean subjects: interforaminal distance (ID), vertical distance between the inferior mandibular border and the apices of the anterior teeth (VD), and horizontal distance between the labial cortical bone and the apices of the anterior teeth (HD). Differences between genders and among age groups, and the correlations among measurements were analyzed. A total of 973 images (411 males and 562 females; mean age = 41.2 years) were selected. The overall mean ID, VD, and HD were 55.38 ± 5.13, 22.16 ± 3.84 and 5.21 ± 1.70 mm, respectively. The ID and VD were significantly larger in males than in females (P < 0.001), and ID was significantly smaller in the youngest age group than in other age groups (P < 0.001), while HD differed significantly only between the youngest and oldest groups (P < 0.05). There was a weak positive correlation between ID and HD (γ > 0.10). This study provides information on the topography of the mandibular symphysis in the Korean population based on a large number of CT images. In general, gender seemed to influence the symphyseal dimensions strongly, whereas the influence of age was limited.
Full Text
http://onlinelibrary.wiley.com/doi/10.1002/ca.22315/abstract
DOI
10.1002/ca.22315
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Periodontics (치주과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Min Soo(김민수)
Lee, Jung Seok(이중석) ORCID logo https://orcid.org/0000-0003-1276-5978
Jung, Ui Won(정의원) ORCID logo https://orcid.org/0000-0001-6371-4172
Chai, Jung Kyu(채중규)
Choi, Seong Ho(최성호) ORCID logo https://orcid.org/0000-0001-6704-6124
Hong, Ji Youn(홍지연)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/98395
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