The korean journal of orthodontics (대한치과교정학회지)
- Volume 14 Issue 2
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- Pages.263-272
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- 1984
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- 2234-7518(pISSN)
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- 2005-372X(eISSN)
A STASTICAL STUDY OF DENIAL CROWDING AND ITS RELATIONSHIP TOOTH SIZE, AND ARCH DIMENSION AND SHAPE
치아의 밀집(Crowding)에 영향을 주는 치아 및 악궁의 크기와 형태에 관한 통계학적 연구
- Choi, Young-Ju (Department of Dental Science, Younsei University) ;
- Park, Young-Chel (Department of Dental Science, Younsei University)
- Published : 1984.09.01
Abstract
This study was undertaken to examine the extent to which tooth size and jaw size each contribute to dental crowding. Two groups of dental casts were selected on the basis of dental crowding. One group, consisting of 94 pairs of dental casts (46 males and 48 females) with normal occlusion. A second group, consisting of 84 pairs of dental casts (98 males and 46 females) with crowding. The results were as follows. 1. Means and standard deviations of the two groups were used to compare the two groups. 2. Significant differences were observed between two groups on the basis of tooth size, arch dimension and arch perimeter. 3. Between noncrowded group and crowded group, was crowded group was found to have large troth size than noncrowded group, while smaller arch dimension and perimeter. 4. Significant differences were observed between males and females on the basis of tooth size, arch dimension and arch perimeter. 5. Author found ideal arch shape of normal occlusion.
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