악골형태에 따른 상하악절치위치에 관한 측모 두부방사선 계측학적 분석

• 영문명: CEPHALOMETRIC ANALYSIS OF UPPER AND LOWER INCISORS IN DIFFERENTIAL FACIOSKElETAl PATTERN
• 발행기관: 대한치과교정학회
• 저자명: 김정호(Jung-Ho Kim) 권오원(Oh-Won Kwon) 김정민(Jung-Min Kim)
• 간행물 정보: 『The Korean Journal of Orthodontics』제22권 제3호, 735~753쪽, 전체 19쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1992.09.30

영문 초록

The purpose of this study was to analyze the positions of upper and lower incisors according to facio skeletal patterns. The lateral cephalometric radiographs of sixty persons with normal occlusion, forty persons with Class II Division 1 malocclusion, and forty persons with Class III malocclusion all above the age of 18, were analyzed. The following results were obtained. 1. C I angle, the measurement related to masticatory system, were 89.20 ± 4.34° in normal occlusion group, 81.68 ± 5.95° in Class II Division 1 malocclusion group and 101.96 ± 6.31° in Class III malocclusion group. 2. In comparison with the positions of upper and lower incisors according to facioskeletal patterns, Class II Division 1 malocclusion group showed that upper incisors were different significantly in all measurements and inclined labially (P< 0.05). Lower incisors were different significantly in all measurements except LI-APog, LI-APog (mm), LI-AB, LI-AB (mm) and inclined labially (P< 0.05), Class III malocclusion group showed that upper incisors were different significantly in all measurements except UI-SN, UI-OP, and inclined labially (P< 0.05). Lower incisors were different significantly in all measurements and inclined lingually (P<0.05). 3. In all facioskeletal patterns, LI-SN and LI-PH ware correlated moderately to facioskeletal measurements, and FMA was correlated moderately to measurements of lower incisor position. 4. Regardless of the facioskeletal patterns, the reference planes equally applicable were AB line in the measurements of upper incisor and APog line in the measurements of lower incisor.