The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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A study on the position of tongue and hyoid bone in relation to vertical facial patterns in skeletal Class III malocclusion

골격성 III급 부정교합에서 수직적 안모형태에 따른 혀와 설골의 위치 비교

  • Woo, Kwang-Su (Department of Orthodontics, College of Medicine, The catholic University of Korea) ;
  • Yoon, Jeong-Hyun (Department of Orthodontics, College of Medicine, The catholic University of Korea) ;
  • Kim, Sang-Cheol (Department of Orthodontics, College of Medicine, The catholic University of Korea) ;
  • Moon, Seong-cheol (Department of Orthodontics, College of Medicine, The catholic University of Korea)
  • 우광수 (원광대학교 치과대학 교정학교실) ;
  • 윤정현 (원광대학교 치과대학 교정학교실) ;
  • 김상철 (원광대학교 치과대학 교정학교실) ;
  • Published : 2000.10.01
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Abstract

The purpose of this study was to evaluate the position of tongue and hyoid bone in relation to vortical facial patterns in the adult and child. Lateral cephalograms taken in adults(63 cases, 11.7 years in average age) and children(69 cases, 22.6 years in average age) were traced and measured about position and posture of tongue and hyoid bone using the horizontal and vertical reference lines. The angle of mandibular plane to SN Plane was employed to classify the samples into groups of hypodivergent and hyperdivergent. The comparison of the tongue/hyoid bone measurements between hypodivergent group and hyperdivergent group in the adult and child were statistically executed with Student's f-test. The results were as follows, 1. The tongue height was lower in the hyperdivergent group than in hypodivergent group, and higher in children than in adults. 2. The vertical height of hyoid bone was higher in hypodivergent group than in hyperdivergent group and also higher in children than in adults. 3. The anteroposterior position was of no significant difference in relation to age or vortical facial pattern. 4. The inclination of hyoid bone in relation to cranial base was steeper in children than in adults.

혀와 설골의 위치가 안모형태와 어떤 양태로 상관성을 갖는지 비교평가하기 위해 69명의 성인군과 63명의 성장군에서 두부방사선계측사진을 얻었다. 성인군과 성장군에서 SN평면에 대해 큰 하악평면각을 갖는 군과 작은 하악평면각을 갖는 군으로 구분하여 다음과 같은 결론을 얻었다. 1. 혀의 높이는, 큰 하악평면각을 갖는 군보다는 작은 하악평면각을 갖는 군에서, 성인군보다는 성장군에서 높게 나타났다. 2. 설골의 수직적 높이는 큰 하악평면각을 갖는 군보다는 작은 하악평면각을 갖는 군에서, 성인군보다는 성장군에서 높게 나타났다. 3. 연령과 안모형태의 수직적 분류에 따른 설골의 전후방적인 위치는 차이가 없었다. 4. 두개저에 대한 설골의 기울기에 있어, 성인군보다 성장군에서 좀 더 가파른 경사도를 갖고 있었다.

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