The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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A LONGITUDINAL STUDY OF NASOPHARYNX AND ADENOID GROWTH OF KOREAN CHILDREN

한국인 아동의 비인두와 Adenoid성장에 관한 누년적 연구

  • Hwang, Chung-Ju (Department of Orthodontics, College of Dentistry, Yonsei University) ;
  • Ryu, Young-Kyu (Department of Orthodontics, College of Dentistry, Yonsei University)
  • 황충주 (연세대학교 치과대학 교정학교실) ;
  • 유영규 (연세대학교 치과대학 교정학교실)
  • Published : 1985.03.01
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Abstract

Since the fact was known that mouth breathing resulted from the adenoid hypertropy causes malocclusion, many investigators have studied nasopharynx and adenoid in order to clarify the role in relation to the effect on face and occlustion and the development of airway. The author analyzed 13 items in longitudinal cephalometric roentgenograms of 17 boys and 19 girls taken from the age of 7 to 12. The results were as follows. 1. The means and standard deviation for the measured items were obtained. 2. The continual growth of nasopharyngeal cavity was more affected by the height than the depth. 3. The size of adenoid was larger in males than in females, especially on R, $D-AD_2$. 4. Airway percentage was highest in boys at age 10 and girls at age 9. 5. The items showed significant differentiation between males and females were airway percentage, posterior height, $D-AD_1,\;D-AD_2$, and R.

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