한국인 아동의 악안면 구조의 사변형 분석에 관한 연구

• 영문명: A study on quadrilateral analysis of facial configuration in Korean children
• 발행기관: 대한치과교정학회
• 저자명: 최승훈(Seung-Hoon Choi) 양원식(Won-Sik Yang)
• 간행물 정보: 『The Korean Journal of Orthodontics』제18권 제1호, 235~252쪽, 전체 18쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1988.06.30

영문 초록

The quadrilateral analysis is a proportional analysis which evaluates the skeletal configuration of lower face on the relations between both jaws in the horizontal as well as vertical dimensions. This study was undertaken to analyse the harmony and disharmony of quadrilateral patterns in normal occlusion and malocclusion. The present study was carried out on lateral cephalograms of 530 Korean children; the subjects consisted of 135 normal occlusions (63 male and 72 female), 105 Class II division 1 malocclusions (52 male and 53 female), 109 Class III malocclusions (50 male and 59 female), 91 hypodivergent facial types (44 male and 47 female) and 90 hyperdivergent facial types (45 male and 45 female). The following conclusions were reached: 1. Means and standard deviation in each group and sex were obtained from normal occlusion and malocclusion. 2. Quadrilateral mean diagram in normal occlusion was constructed for male and female, respectively. 3. In normal occlusion, 1:1 ratio exists between the maxillary base length (A´ to Ptm´) and mandibular base length (B´ to J´), but lower facial height is larger than above. 4. Difference is effective to estimate the degrees of Class II and Class III malocclusion, and lower facial height (LFH) and sagittal angle is effective to recognize the hypodivergent and hyperdivergent facial type. 5. Quadrilateral analysis is able to visualize the anteroposterior and vertical dysplasia of lower face, and it is helpful to recognize certain problems in malocclusion.