골격성 II급 및 III급 부정교합자의 제2, 제3대구치의 석회화에 관한 연구

• 영문명: A study of the calcification of the second and the third molars in skeletal Class II and III malocclusions
• 발행기관: 대한치과교정학회
• 저자명: 김재오(Jae-Oh Kim) 정규림(Kyu-Rhim Chung)
• 간행물 정보: 『The Korean Journal of Orthodontics』제20권 제1호, 123~133쪽, 전체 11쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1990.04.30

영문 초록

The work was undertaken to evaluate the calcification of the second and the third molars in skeletal Class II and III malocclusions. The differences in the calcification stages between skeletal Class II and III malocclusion were evaluated and statistically analysed from panoramic radiographs of 202 males and females ranging in age from 11 to 15 years old. The results were as follows, 1. The calcification stages of the second and the third molars were not different between the skeletal Class II and III malocclusions in each age groups of both sexes. 2. The calcification stages of lower second and third molars of the skeletal Class III malocclusion are more advanced than those of the skeletal Class II malocclusion in male. 3. The clacification stages of upper second and third molars are more advanced than those of lower second and third molars in skeletal Class II malocclusion. 4. The calcification stages of lower second and third molars are more advanced than those of upper second and third molars in skeletal Class III malocclusion.