The korean journal of orthodontics (대한치과교정학회지)
- Volume 21 Issue 1 Serial No. 33
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- Pages.171-183
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- 1991
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- 2234-7518(pISSN)
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- 2005-372X(eISSN)
A STUDY ON THE CHARACTERISTICS OF CRANIOFACIAL SKELETON OF ANGLE'S CLASS II MALOCCLUSION CASES
Angle II급 부정교합자의 악안면골격 특성에 관한 연구
- Lee, Jin-Woo (Dept. of Orthodontics, College of Dentistry, Dankook University) ;
- Cha, Kyung-Suk (Dept. of Orthodontics, College of Dentistry, Dankook University)
- Published : 1991.03.01
Abstract
This investigation was designed to categorize Angle's class II malocclusion groups through analyzing horizontal and vertical components of craniofacial skeleton in Angle's class II malocclusion. The material selected for this study consisted in standard lateral cephalogram of two hundred and twenteen children, eighty eight boys and one hundred twenty four girls, aged 6 through 18 years, having Angle's class II malocclusion. On the basis of findings of this study, the following results were obtained. 1. In horizontal skeletal classifications, 16 groups were classified according to FMN-A-B, SE-FMN-A, Ba-SE-Me, Ba-Se/Ra P. The sequences that have relatively high frequency are as follows: a) Horizontal Group 16 b) Horizontal Group 12 c) Horizontal Group 13 d) Horizontal Group 9 & 15 2. In vertical skeletal classification, 8 groups were classified according to the PMV/PP, PMV/Occ. P. PMV/Mn. P. The sequences that relatively high frequency are as follows; a) Vertical Group A b) Vertical Group D c) Vertical Group C d) Vertical Group H 3. In vertical and horizontal skeletal classifications, the sequence that relatively high frequency are as follows; a) Group13-A b) Group16-A & 9-A c) Group12-A & 15-A d) Group16-C
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