【摘 要】
：
Objectives: To assess the characteristics of primary dental caries in 3-6 year old children in urban Beijing, and to analyze a possible predictive index for pri
【机 构】
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DepartmentofPreventiveDentistry,PekingUniversitySchoolandHospitalofStomatology,China
【出 处】
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The 11th International Conference of Asian Academy of Preven
论文部分内容阅读
Objectives: To assess the characteristics of primary dental caries in 3-6 year old children in urban Beijing, and to analyze a possible predictive index for primary caries.Methods: Using random cluster sampling, 2,333 participants from six kindergartens,comprised 35.7％ 3-year-olds, 32.4％ 4-year-olds, and 31.9％ 5-year-olds, in urban Beijing were selected.At baseline, questionnaires were administered to about half of parents.Childrens oral health was examined at baseline and 6, 12, and 18 months later.1,094 children completed the 18-month evaluation.
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