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通过对南京市区学龄前儿童的调查,分析探讨八十年代南京市学龄前儿童牙颌畸形的发生率、主要的牙颌畸形表现及其构成比例以及需要和可能采取的措施。
Based on the survey of preschool-aged children in Nanjing city, this paper analyzes the incidence of dento-mandibular deformities, the main dento-mandibular malformations and their constituent proportions in Nanjing in the 1980s and their needs and possible measures.