한국인 여학생 상악 치조골의 성장 양상 분석
AN ANALYSIS OF THE GROWTH PATTERN OF MAXILLARY ALVEOLAR BONE OF THE KOREAN GIRLS
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초록
상악 치조골은 상악골의 일부로 치근을 감싸고 지지하는 역할을 하며 치아의 결손 시 지지구조물로 치료에 중요한 역할을하게 된다. 지금까지 치조골의 성장에 관한 연구는 교정적 치료의 관점에서 이루어져 영구치 결손을 위한 치료법을 위한 자료로 사용하기에는 한계가 있다. 따라서 본 연구에서는 성장기에 있는 한국인 여학생들의 측모두부규격방사선사진들을 연도 별로 수집하여 상악 치조골의 성장 양상을 분석하였다. 한국인 여학생들의 만 8세에서 만 14세까지 2년 간격으로 측모두부규격방사선사진, 키, 역연령을 수집하였다. 여섯 항목을계측하여 각 항목의 평균, 최소값 및 최대값을 구하고 각 계측 항목과 역연령, 키 사이의 상관관계 및 동일 항목에서 나이 군사이의 상관관계를 분석하였으며 성장량 예측을 위한 선형회귀분석을 시행하였다. 상악 치조골은 14세까지 계속 성장하였으나 성장속도는 점차 감소하여 키의 성장 양상과 차이를 보였다. 역연령 및 키와치조골 높이 사이의 상관 계수는 차이를 보이지 않았으며, 역연령 군 사이의 상관계수는 매우 높게 나타났다. 따라서 역연령을 기초로 하는 선형회귀분석을 시행하여 14세 때의 치조골 높이 예측 공식을 작성하였다. 이러한 결과는 소아 상악 치조골의 성장 양상 이해와 성장량을 예측을 가능하게 하여 임플란트 시술과 같은 적극적 치료에도움을 줄 수 있을 것으로 기대된다.
Abstract
Longitudinal serial cephalometric films in the every second year from fifty girls were used for the analysis of growth pattern of maxillary alveolar bone (MAB). Six parameters regarding MAB height were measured and were compared with stature and chronological age. Descriptive analysis, correlation coefficient test and linear regression analysis were done for the statistical analyses. 1. The height of MAB increased until 14 years although growth velocity was gradually decreased, which was different with stature growth pattern. 2. The correlation coefficients between chronological age and MAB height were high and had no statistical differences with those of stature and MAB height. In addition, the correlation coefficients between chronological age groups within each parameter of MAB were very high. 3. The growth amount of MAB could be predicted using linear regression analysis on the basis of chronological age data. The growth pattern between MAB and statue was quite different because of the growth pattern difference between skeletal and neuronal system. Therefore, growth pattern of Korean MAB must be considered in dental treatment of youth. Also, close relationship between chronological age and MAB height would be useful when clinicians want to predict growth amount of MAB for the dental implant treatment.
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