안모수직 부조화에 따른 하악이부 형태에 관한 연구

• 영문명: A study on the morphology of chin in relation to vertical dysplasia of craniofacial complex
• 발행기관: 대한치과교정학회
• 저자명: 차봉근(Bong-Keun Cha) 서정훈(Cheong-Hoon Suhr)
• 간행물 정보: 『The Korean Journal of Orthodontics』제20권 제1호, 135~156쪽, 전체 22쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1990.04.30

영문 초록

This study was undertaken to investigate the difference of chin morphology and mandibular form in relation to different mandibular growth direction. The subject was divided into three group i.e., control group, vertical group, and horizontal group, according to the criteria of Björk sum, and each group was composed of 15 females and 15 males. Medial axis analysis in addition to the routine cephalometric analysis using P.I.A.S. (personal image analysing system) was carried out to find out the differences of mandibular morphology on each group. The results were as follows: 1. The area of symphysis was larger in horizontal growth group than that of vertical growth group. 2. Protruding chin area was also larger in horizontal growth group than that of vertical growth group. 3. There was a close correlationship between protruding chin area and other form of mandible. 4. Antegonial notch depth and ramus posterior contour depth was deeper in vertical growth group than in horizontal growth group, and antegonial notch depth was more influenced by anterior part of notch than posterior part of notch. 5. Mental medial axis and incisal medial axis length, in relation to corpus medial axis length was larger in vertical growth group than in horizontal growth group.

키워드

vertical growth horizontal growth mandibular form chin morphology