骨格型 III級 不正咬合者의 垂直不調和에 關한 硏究

• 영문명: A study on the vertical dysplasia in the skeletal class iii malocclusion
• 발행기관: 대한치과교정학회
• 저자명: 申文彰(Mun-Chang Shin)
• 간행물 정보: 『The Korean Journal of Orthodontics』제20권 제2호, 333~354쪽, 전체 22쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1990.08.31

영문 초록

This study was designed to analyse vertical dysplasia such as open bite or deep bite in persons with skeletal Class III malocclusion. The subjects consisted of 60 control patients, 40 Class III open bite patients and 40 Class III deep bite patients. The mean age was 19.8 years in the control group, 17.8 years in the Class III open bite group and 16.5 years in the Class III deep bite group. The results were as follows: 1. In Class III malocclusion patients, the characteristics of the vertical dysplasia are under the palatal plane. 2. In Class III malocclusion patients, the items showing the characteristics of the vertical dysplasia are mandibular plane angle, lower gonial angle, lower facial height, dental height & inclination of the upper first molar, interincisal angle, maxillary & mandibular occlusal plane angle. 3. In Class III malocclusion patients, LPFH/LAFH ratio shows the highest significance among the facial height ratios. 4. In Class III malocclusion patients, open bite group has a upward cant of maxillary occlusal plane & downward cant of mandibular occlusal plane. And deep bite group has a downward cant of maxillary occlusal plane & upward cant of mandibular occlusal plane. 5. In Class III malocclusion patients, the molar teeth of the open bite group are measially inclined and those of the deep bite group are upright.

키워드

C1 III malocclusion vertical dysplasia dental height of tooth inclination of tooth occlusal plane