턱끝구멍 위치의 체질인류학적 고찰
Anthropometric Study on the Location of the Mental Foramen
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참고문헌
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초록
턱끝구멍은 턱뼈관의 끝으로 턱끝신경과 혈관이 나오는 구멍이며 치아마모상태, 연령, 치아탈락상태, 이틀 돌기 흡수상태 뿐 아니라 인종, 음식물, 지리적 차이 등의 영향으로 위치가 달라져 민족마다 차이가 나는 아래턱 뼈의 체질인류학적 구조물이다. 이에 저자들은 턱끝구멍 위치의 체질인류학적 특성을 구명하기 위하여 한양대학교 의과대학 해부∙세포생물학 교실에서 보관중인 시신 44구의 아래턱뼈를 대상으로 치아에 대한 턱끝구멍의 상대적 위치와 턱끝구멍을 지나는 아래턱뼈 몸통 높이에서 턱끝구멍의 위치를 확인하였다. 결과는 다음과 같다. 턱끝구멍은 둘째작은어금니 주변에 90.3% 위치하였고, Wang 등(1986)의 분류 중 제5형의 빈도가 가장 높았다. 턱끝구멍을 지나는 턱뼈몸통의 높이는 27.4±2.4mm이었고, 아래턱뼈 바닥에서 턱끝구멍까지는 13.1±2.0 mm, 이 틀능선에서 턱끝구멍까지는 12.1±2.3mm이었다. 타민족과 비교하기 위하여 수치로 환산한 턱끝구멍의 평균 위치 는 4.00으로 둘째작은어금니와 첫째큰어금니 사이이고 다른 종족에 비하여 뒤쪽에 위치하였다. 본 연구의 결과로 우리나라 사람에서 턱끝구멍의 체질인류학적 특성을 구명한 것으로 생각된다.
Abstract
The Mental foramen is the exit of the mandibular canal through which the mental nerve pass. The location of the mental foramen, an anthropologically valuable structure, is not only influenced by factors such as tooth attrition, age, loss of teeth, and alveolar bone resorption but also race, diet and geographical position. This study was undertaken to clarify the anthropological characteristics of the location of the mental foramina in the mandibles of the selected Korean population. Forty four mandibles (23 males and 21 females with average age of 66.5 years obtained from the collection of the department of anatomy and cell biology of Hanyang medical college were studied. The apparent position of mental foramen in relation to the mandibular teeth and the true position of mental foramen in relation to the body of the mandible were measured. The obtained results were as follows: In 89% of 35 mandibular sides the mental foramen was located around the second premolar, the most commonly between the second premolar and the first molar, which belongs to type V according to Wang et al. (1986). The distances from the alveolar bone crest across the mental foramen to the lower border of the mandible was 27.4±2.4 mm. The mean distances from mental foramen to the alveolar crest and lower border were 12.1±2.3 and 13.1±2.0 mm, respectively. The mean position of mental foramen was 4.08 on the line between the second premolar and the first molar. The mental foramen of selected Korean population was located more posterioly when compared with many previous reports from various races. The results of this study would be useful to clarify the anthropological position of the mental foramen in Korean.
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