대한치과교정학회지 (The korean journal of orthodontics)
- 제14권2호
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- Pages.249-261
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- 1984
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- 2234-7518(pISSN)
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- 2005-372X(eISSN)
정상교합의 치열궁형태에 관한 연구
A STUDY OF DENIAL ARCH FORM IN NORMAL OCCLUSION
- Cho, Joo-Hwan (Department of Orthodontics, College of Dentistry Kyung Hee University) ;
- Lee, Ki-Soo (Department of Orthodontics, College of Dentistry Kyung Hee University)
- 발행 : 1984.09.01
초록
This study was to investigate the fitness of the dental arch line to the parabola, and to estimate correlation between the parabola and some ratios of the dental arch measurements. The sample was consisted of the 64 plaster casts showing normal occlusion which was taken from males and females of Korea, aging from 15 to 18 years. The photos of occlusal surface of the plaster casts were taken, and 38 landmarks on the film were selected. The 3 dental arch lines on each dental arch were imaged. One is the dental arch line passing the points of the most buccal surfaces of the teeth, another is that passing the buccal cusp tips of the posterior teeth and the incisal edges, and the other is that passing the midpoints of the teeth. The landmarks on the film were digitized, and measurements and statistics were performed by the IBM computer. The results were as follows; 1. The fitness of the dental arch to the parabola was very good. The fitness of thor upper dental arch was above
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