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硬組織側貌의 成長變化에 關한 累年的 硏究 A LONGITUDINAL STUDY ON THE BONY FACIAL PROFILE CHANGES

Korean Journal of Orthodontics 1978년 8권 1호 p.49 ~ 58
이정훈,
소속 상세정보
이정훈 ( Lee Jung-Hun ) 
경희대학교 치의학전문대학원 교정학교실

Abstract


This investigation was undertaken to know how the bony facial profile could be changed with age. The 5 serial lateral cephalometric roentgenograms of the fourteen boys and fourteen girls between 7 and 11 years of age were studied and the findings seems to warrant the following conclusions. 1. The mandible tended to become more prognathic in relation to the cranial base (S-N) during growth, but the maxilla showed very little change. 2. There was increase in the inclination of the lower border of mandible associated with the increase in mandibular prognathism. 3. There was a tendency to being straight in bony facial profile due to the decrease in angle ANB with age. 4. The chin portion had a tendency to forward and downward growth in relation to the cranial base but there was slight strong tendency in downward growth. 5. The vertical growth was more prominant in the maxilla than in the mandible. 6. There was uniform and gradual increase of all measurements during growth. 7. Dimension of the craniofacial complex was larger in the boys than in the girls but this difference was not statistically significant. 8. Individual variation in skeletal growth was a normal occurrence.

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SCI(E)
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KoreaMed