【摘要】 目的:调查分析南京市6~9岁儿童第一恒磨牙患龋及萌出情况,为龋病防治工作提供参考。方法:按照《全国第三次口腔健康流行病学调查方案》和WHO《口腔健康调查基本方法》标准,随机抽取南京市城区15所学校2 148名儿童,进行第一恒磨牙龋病流行病学调查。结果:6、7、8、9岁组第一恒磨牙萌出率(%)分别为41.89、78.60、91.28、96.31;患龋率(%)分别为5.08、18.39、15.04、14.92,总患龋率14.48%;窝沟封闭率(%)分别为1.27、2.84、4.62、9.85,总窝沟封闭率5.21%。结论:南京市6~9岁儿童第一恒磨牙患龋率较高,而窝沟封闭实施情况欠佳,建议对第一恒磨牙进行早期窝沟封闭防龋治疗,最佳时期为6~7岁。更多还原

【Abstract】 AIM:To investigate the eruption and caries status of the first permanent molars of children aged 6- 9 years in Nanjing. METHODS:2148 children aged 6- 9 years were randomly selected from 15 schools in Nanjing. Eruption and caries status of the first permanent molars was examined according to the Guideline for the 3rd National Oral Health Survey of china and the WHO criteria. RESULTS:The eruption rate( %) of the first permanent molars in 6,7,8 and 9 year- old children was 41. 89,78. 60,91. 28 and 96. 31; the caries prevalence( %) 5. 08, 18. 39,15. 04 and 14. 92,the total caries prevalence( %) was 14. 48%; the pit-and-fissure sealing rate( %) was 1. 27,2. 84,4. 62 and 9. 85,the total pit-and-fissure sealing rate was 5. 21%. CONCLUSION:The caries prevalence of the first permanent molars is high and the pit-and-fissure sealing rate is low in children aged 6- 9 years in Nanjing. Caries prevention and treatment measures should be started for the children at the age of 6-7-year old.更多还原