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A study of Steiner cephalometric norms for Chinese children
https://osaka-dent.repo.nii.ac.jp/records/132
https://osaka-dent.repo.nii.ac.jp/records/13241bc484a-6041-44c5-816b-dde8ac679be8
名前 / ファイル | ライセンス | アクション |
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学位論文 (119.0 kB)
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論文内容要旨・審査結果要旨 (197.1 kB)
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Item type | 学位論文 / Thesis or Dissertation(1) | |||||
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公開日 | 2016-08-01 | |||||
本文言語 | ||||||
言語 | eng | |||||
タイトル | ||||||
タイトル | A study of Steiner cephalometric norms for Chinese children | |||||
著者 |
陳, 以文
× 陳, 以文× Chen, Yih-Wen |
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キーワード | ||||||
主題Scheme | Other | |||||
主題 | Cephalometric radiography | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Steiner analysis | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Chinese children | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||
資源タイプ | doctoral thesis | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We examined the facial characteristics of Chinese children with normal occlusion using Steiner analysis. Ninety boys and 90 girls who were selected from 5,417 students in a primary school in Taipei, Taiwan, were classified by Hellman’s developmental stage (ⅢA, ⅢB and ⅢC) and chronological age stage Ⅳ (11 y 0 m−13 y 10 m). Angular and linear measurements were determined. In comparison with pre-existing measurement values for Japanese, the SNA angle, SNB angle, SND angle, interincisal angle, and SL values for the Chinese subjects were significantly larger for stages ⅢC and Ⅳ, while L1 to NB, ∠L1 to NB, occlusal plane to SN, GoGn to SN, and SE values were significantly smaller. Compared tomeasurement values for Caucasians, the mean of SNA angle, ANB angle, U1 to NA, ∠U1 to NA, L1 to NB, ∠L1 to NB, and occlusal plane to SN angle were larger among our subjects (stages ⅢC and Ⅳ) and the interincisal angle, SL and SE were smaller. These results demonstrate that Chinese have a more robust growth of the maxilla than Japanese and Caucasians. We also found that although the skeletal Class Ⅱ tendency in Chinese was lower than in Japanese, it was higher than in Caucasians. Although the amount of growth of the mandible in Chinese was greater than in Japanese, it was less than in Caucasians. Although clockwise rotation was also less than in Japanese, it was greater than in Caucasians. Regarding dental structure, although anterior teeth in Chinese tended to have less bimaxillary protrusion than in Japanese, they had greater bimaxillary protrusion than in Caucasians. Although the occlusal plane was flatter than that of Japanese, it was steeper than that of Caucasians. The above findings suggest that when performing orthodontic treatments on Chinese, greater attention is needed when the features of malocclusion are similar to Caucasians. |
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学位名 | ||||||
学位名 | 博士(歯学) | |||||
学位授与機関 | ||||||
学位授与機関識別子Scheme | kakenhi | |||||
学位授与機関識別子 | 34408 | |||||
学位授与機関名 | 大阪歯科大学 | |||||
学位授与年月日 | ||||||
学位授与年月日 | 2015-12-22 | |||||
学位授与番号 | ||||||
学位授与番号 | 乙第1602号 |