The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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A PROPORTIONAL ANALYSIS OF SOFT TISSUE PROFILE IN KOREAN YOUNG ADULTS

성인 정상 교합자의 연조직 비율에 관한 두부 X-선 계즉학적 분석

  • Lee, Jeong-Hwa (Department of Orthodontics, College of Dentistry, Seoul National University) ;
  • Nahm, Dong-Seok (Department of Orthodontics, College of Dentistry, Seoul National University)
  • 이정화 (서울대학교 치과대학 교정학교실) ;
  • 남동석 (서울대학교 치과대학 교정학교실)
  • Received : 1994.04.01
  • Published : 1994.06.30
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Abstract

The purpose of this study was to investigate proportional characteristics of soft tissue profile in Korean young adults. The sample consisted of 50 young adults(25 males and 25 females) who had pleasing profile and normal occlusion. Soft tissue proportional analysis was performed on lateral cephalograms taken in natural head position. The results were as follows : 1. Mean and standard deviation of proportional analysis were obtained. 2. Horizontal and vertical dimensions were larger in male. But facial proportion had no sexual difference except upper/lower face height (p<0.05). Upper/lower face height was larger in female than in male. 3. Vertical dimensions, except SN-ST, had high correlation with horizontal dimensions. 4. Head positioning error of natural head position was smaller than inter -individual variability of SN line.

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