Morphological Study on the Craniofacial Pattern of Chinese Children with Mandibular Protrusion in Primary Dentition
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概要
- 論文の詳細を見る
The purpose of this study was to investigate the morphological characteristics of the cranio-dento-facial complex of Chinese children with primary dentition and mandibular protrusion. Thirty children with normal occlusion and 30 with mandibular protrusion were selected for cephalometric analysis. The cephalometric measurements were adopted from the analyses of Bjork, Chang, Downs, Northwestern, Steiner, Tweed and the dimensional linear method of Sakamoto, Miura, and Iizuka. Differences in the cranio-dento-facial pattern between Chinese and Japanese children with mandibular protrusion of primary dentition were also studied. The main conclusions were as follows: 1. While both the lengths of thc mandible and the body of the mandible were not significantly different, the mandible was situated further forward in the cases with mandibular protrusion. 2. The maxilla was significantly shorter in the mandibular protrusion group, which may be primarily associated with the shorter anterior cranial base found in this group. 3. The lower incisors were tipped lingually to compensate for the intermaxillary skeletal dysplasia in mandibular protrusion. 4. The only significant difference in the skeletal patterns between Chinese and Japanese children with mandibular protrusion of thc primary dentition was the Frankfort mandibular plane angle. 5. Both the maxillary and mandibular dental arch lengths were larger in Japanese than in Chinese children with mandibular protrusion.
- 大阪歯科学会の論文
著者
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Kawamoto Tatsuo
Department of Orthodontics, Osaka Dental University
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Kawamoto Tatsuo
Department Of Orthodontics Osaka Dental University
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CHU I-Fei
Department of Orthodontics, Osaka Dental University
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Chu I-fei
Department Of Orthodontics Osaka Dental University
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