두개안면골 형태에 따른 두부위치에 관한 두부방사선 계측학적 연구

• 영문명: A CEPHALOMETRIC STUDY OF THE NATURAL HEAD POSITION ACCORDING TO CRANIOFACIAL MORPHOLOGY
• 발행기관: 대한치과교정학회
• 저자명: 김형준(Hyung Jun Kim) 유영규(Young Kyu Ryu)
• 간행물 정보: 『The Korean Journal of Orthodontics』제17권 제1호, 55~62쪽, 전체 8쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1987.06.30

영문 초록

Diagnosis and treatment plans of patients are depended on cephalogram in most case. How?ever, conventional cephalogram may change diagnosis because it ignores a conception of natural head position. The purpose of this study was to investigate the difference of head positions between conventional X-ray taking and x-ray taking in natural head position, and correlation between above results and craniofacial morphology 60 male students in dental college, Yonsei Univ were selected, and every cephalogram is studied by comparison of the change of head position. The results are as follows 1. When taking X-ray by using conventional method, external auditary meatus FH was more tilted than ear rod FH by 21° ±1.8 in forward and downward direction. 2. As facial form becomes concave, natural head position and head position, appeared in X-ray taking by using conventional method, become more similar. 3. Change in head positron had showed high correlations with facial form (N-A-Pog angle), and there was high significance to concave group when compared with average group, but significance to convex group was not found. 4. Multiple-regression equation concerning change of head position was solved ΔFH = 24.5 + 0.31 NAPog + 0.43 Prominence of Chin + 0.13 Facial length -0.32 Anterior facial height.