혼합치열기 II급 부정교합에 대한 high pull Headgear의 효과

• 영문명: THE EFFECTS OF HIGH PULL HEADGEAR IN MIXED DENTION WITH CLASS II MALOCCLUSION
• 발행기관: 대한치과교정학회
• 저자명: 권순용(Soo-Yong Kwon) 정규림(Kyu-Rhim Chung)
• 간행물 정보: 『The Korean Journal of Orthodontics』제24권 제3호, 555~567쪽, 전체 13쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1994.09.30

영문 초록

The purpose of this study is to observe the effect of high pull headgear on the craniofacial structures of mixed dentition with Class II malocclusion. The cephalometric headplates of 16 children treated by high pull headgear during 6 months and 18 children during 12 months were traced, digitized and statistically analyzed. The results were as follows. 1. Inhibition of forward growth of maxilla was observed in both group. 2. Clockwise rotation of maxilla was observed in both group. 3. There were distal movement of maxillary 1st molar and inhibition of alveolar bone growth of maxilla. 4. There was compensatory extrusion on mandibular 1st molar. 5. The ratio of anterior facial height to posterior facial height was almostly not changed. In the treatment plan of C II malocclusion by high pull headgear, we must prevent the mandibulasr 1st molar from extruding, and for orthopedic effect, at least 6 months is needed.

키워드

high-pull Headgear Mixed dentition Class II malocclusion Cephalometrics