E국민학교생 6~11세 아동에 있어서 악안면 연조직의 성장변화에 관한 누년적 연구 |
박영철1, 손병화2 |
1연세대학교 치과대학 교정학교실 2연세대학교 치과대학 교정학교실 |
A Longitudinal Study of The Soft Tissue Profile Changes in 6 to 11 Years Children |
Young-Chel Park1, Byung-Hwa Son2 |
1Dept of Orthodontics, College of Dentistry, Yon Sei University 2Dept of Orthodontics, College of Dentistry, Yon Sei University |
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Abstract |
The purpose of this study is to evaluate the chronologic changes of the soft tissue profile in 6 to 11 years children.
The author analyzed 174 cephalometric roentgenograms of 13 boys and 16 girls taken from the ages of 6 to 11 to assess the growth changes of the soft tissue profile.
The results were obtained as follow:
1. Means, standard deviation and coefficient of variation of children were obtained.
2. Items which showed difference between males and females in longitudinal study were prn.
Sn. A', and Ls that were greater than females variation.
3. With age, thickness of the soft tissue were increased except Ls.
4. Nasolabial angle and facial convexity had no significant change with age and sex. |
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