제3대구치의 선천적 결손과 그 치아수의 이상과의 관계

• 영문명: The Relationship Between the Congenitally Missing Third Molar and Variation of Number of the Other Teeth
• 발행기관: 대한치과교정학회
• 저자명: 박준상(Jun-Sang Park)
• 간행물 정보: 『The Korean Journal of Orthodontics』제10권 제1호, 55~64쪽, 전체 10쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1980.12.31

영문 초록

The purpose of this study was to investigate the interrelationship of the experimental group and control group by analyzing case histories, intraoral radiographs, orthopantomographs, intraoral slide films and dental casts. The date for this study were complied from 654 outpatients of the Department of Orthodontics, Seoul National University Hospital. The following conclusions were obtained. 1. When one or more third molar teeth were congenitally missing, the incidence of the other congenitally missing teeth was high. 2. The frequency of congenitally missing teeth was comparatively higher in male, maxilla, class II and class III. 3. The congenitally missing area of the third molar by Angle´s classification was not significant. 4. The order of frequency of congenitally missing teeth was the third molar, the second premolar, the lateral incisor, the first premolar, the first premolar, the central incisor, the canine, the first molar, the second molar.