조선 중∙후기 사람들의 연령별, 분묘형식별, 사망연령별 치아 선형 에나멜 형성부전증 발생 양상
Patterns of Linear Enamel Hypoplasias among Korean Skeletal Samples from the Joseon Dynasty Period
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참고문헌
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초록
본 연구에서는 은평지역 분묘군 인골집단을 대상으로 대표적인 발달 스트레스 지표로서 많은 연구에서 이용되어온 영구치 선형 에나멜 형성부전증(LEH)의 발생 양상을 조사하여, 조선시대 중기에서 후기 사이에서울에 거주했던 사람들이 유아기에 경험한 발달 스트레스의 양상을 파악하고자 하였다. 은평 뉴타운 건설을 계기로 발굴된 은평 분묘군 출토 인골개체 가운데서 영구치의 앞니부위 치아 중 최소한한 개 이상이 남아 있으면서 LEH의 발생유무를 확인하는 것이 가능한 160개체를 본 연구의 분석대상으로 삼았다. 먼저 분묘군의 조성연대, 개체별 성, 사망연령, 분묘형식에 대한 정보를 얻은 후 각 치아별로 LEH의 발생유무, 발생개수를 조사하여 치아유형별 LEH의 발생률과 발생개수, 성별 LEH 발생개수, 분묘형식별 LEH 발생개수, 사망연령과 LEH 발생개수의 상관관계를 분석하였다. 치아별로는 아래턱 좌∙우 송곳니, 위턱 좌∙우 송곳니, 위턱 좌∙우 안쪽앞니의 순서로 LEH의 발생률이 높고 치아당 발생개수도 많았다. 성별차이는 일관성이 없었고 뚜렷하지도 않았다. 분묘형식별 LEH 발생 양상의차이는 뚜렷하지는 않았으나 대체적으로 토광묘 피장자들이 회묘 피장자들에 비해 높은 빈도의 LEH를 보여주는 경향이 있었다. 사망연령과 LEH 발생개수 사이에는 분명한 패턴이 나타나지 않았다. 유일하게 아래턱 좌측 가쪽앞니에서만 LEH 발생개수와 사망연령 사이에 음의 상관관계가 나타나 LEH를 많이 가진 개체일수록조기 사망한 경향을 보여주었다. 마지막으로 본 연구의 결과를 세계 각 곳에서 조사된 연구 결과들과 비교하여 고찰하고 본 연구 결과의 의미를 검토하였다. 본 연구는 국내 고인골을 대상으로 치아에서 나타나는 성장기의 발달 스트레스 지표를 분석한최초의 시도라는 점에서 그 의의를 찾을 수 있다.
Abstract
Dental linear enamel hypoplasia (LEH) is probably one of the most widely used developmental stress indicators among all known skeletal stress indicators. This research examined LEH on the permanent anterior teeth of 160 human skeletal remains from the Joseon Dynasty period. The purpose of this investigation is to understand the characteristics of the developmental stresses experienced by the people of the Joseon period by analyzing the patterns of LEH incidences. The skeletal remains analyzed for this research were excavated during an archaeological investigation at a construction site in Eunpyeong-gu, Seoul, South Korea. Eunpyeong site is estimated to date from the late 15th century to the late 19th century based on the burial type and goods discovered within the graves. Of all the skeletal remains found at this site, 160 individual specimens with at least one of the permanent anterior teeth constituted the sample of the study. Information regarding each individual specimen’s sex, age at death, and burial type was collected by the standardized methods. The prevalence and number of LEH by tooth type, and the number of LEH by sex, by burial type, and by age at death were analyzed. Mandibular canines were the most frequently affected teeth, maxillary canines coming next in the occurrence of LEH, and the third turned out to be the maxillary incisors. This result generally agrees with the findings from previous studies. When number of LEH by sex was compared, there was no consistent difference by sex which also agrees with the findings of previous studies. Although specimens from lime-mortar burials tended to have less number of LEH then those from earth-pit burials, a probable indication of the socioeconomic status effect on the formation of LEH, the result was not very pronounced. No obvious association between the number of LEH and age at death was found, either. Finally the results from this study were compared with those reported by other researches on LEH worldwide. Although preliminary in its level of analysis, this study is the first report of the patterns of LEH of a skeletal population of Korea. With more studies of human skeletal remains from the past, it is hoped, physical anthropology can contribute to the understanding of the past life of the Korean people.
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