대한치과교정학회지 (The korean journal of orthodontics)
- 제23권3호
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- Pages.359-374
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- 1993
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- 2234-7518(pISSN)
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- 2005-372X(eISSN)
Orthopantomogram과 $45^{\circ}$ 측모두부 방사선 사진과의 구치부 치근평행도의 신뢰도에 관한 비교연구
A COMPARATIVE STUDY ON RELIABILITY OF THE ROOT PARALLELISM OF THE POSTERIOR TEETH PROJECTED ON THE ORTHOPANTOMOGRAM WITH THE $45^{\circ}$ OBLIQUE CEPHALOGRAM
- Min, Young-Gyu (Department of Dental Science, College of Dentistry, Yonsei University) ;
- Ryu, Young-Kyu (Department of Dental Science, College of Dentistry, Yonsei University)
- 발행 : 1993.09.01
초록
At present, many orthodontists regard the root parallelism of the posterior teeth important not only in diagnosis and treatment planning but also for predicting posttreatment stability. To evaluate it, they usually refer to the orthopantomogram. At this study, 97 samples were collected from students of Yonsei University, who have well-proportioned face, Angle's class I canine & molar relationships and no crown axis deviation of the posterior teeth including canines. Reliability of the root parallelism observed from orthopantomogram was evaluated by comparison with