【摘要】 目的评估重庆市窝沟封闭项目的干预效果,为有效预防儿童龋病提供依据。方法采取分层随机整群抽样的方法,对重庆市干预组(2 321人)与对照组(2 025人)的12岁儿童进行自填式问卷调查与口腔健康检查。口腔健康检查由经统一培训的牙科医生采用一次性CPI探针进行,数据采用SPSS 19.0进行统计分析。龋均比较采用独立样本t检验,正确刷牙率、龋患率、牙龈出血率与牙结石检出率比较采用χ~2检验。结果儿童正确刷牙率城市干预组(38.40%)略高于对照组(36.99%),差异无统计学意义(χ~2=0.44,P>0.05);而农村为干预组(12.76%)高于对照组(10.04%),差异有统计学意义(χ~2=4.21,P<0.05)。城市干预组第一恒牙龋患率(14.23%)、恒牙龋患率(21.35%)均高于对照组(10.27%,11.06%),差异均有统计学意义(P值均<0.05)。农村儿童第一恒牙龋患率、恒牙龋患率均为对照组(37.69%,53.04%)高于干预组(22.08%,33.44%),差异均有统计学意义(P值均<0.05)。城市干预组与对照组恒牙龋均分别为0.43与0.18,差异有统计学意义(t=6.69,P<0.01);农村干预组与对照组分别为0.83与1.64,差异有统计学意义(t=10.43,P<0.01)。结论儿童窝沟封闭项目对于预防龋病是有效的,但重点应关注农村儿童。更多还原

【Abstract】 Objective To assess the effect of fissure sealing on oral health in urban and rural areas of Chongqing. Methods Children aged 12 years old were randomly sampled and assigned to the intervention( 2 321) and control group( 2 025). Oral health check was conducted by trained dentists with dental CPI probe. Data were analyzed by SPSS 19. 0. DMFT between urban and rural children was compared by independent sample t test. The rate of correct teeth brushing, caries, gingival bleeding and dental calculus was compared by Chi-square test. Results A total of 1 026 urban and 1 295 rural children in the intervention group, 1 022 urban and 1 003 rural children in the control group were surveyed. The rate of teeth brushing correctly among urban children in the intervention group( 38. 40%) was higher than that of urban children( 36. 99%) in the control group, with no statistical significance( χ~2= 0. 44, P > 0. 05). The rate of teeth brushing correctly among rural children in the intervention group( 12. 76%) was lower than that of( 10. 04%) rural children in the control group( χ~2= 4. 21, P < 0. 05). The caries prevalence among sixth- year molar and permanent teeth among urban children in the intervention group( 14. 23% and 21. 35%) was higher than that urban children in the control group( 10. 27% and 11. 06%). However, in rural areas, it was higher among children in the control group( 37. 69% and 53. 04%) compared with that of children in the intervention group( 22. 08% and 33. 44%). DMFT of permanent teeth among urban children between the intervention group and control group was 0. 43 and 0. 18, respectively,with statistical significance( t = 6. 69, P < 0. 01). DMFT of permanent teeth among rural children between the intervention group and control group was 0. 83 and 1. 64, with statistical significance( t = 10. 43, P < 0. 01). Conclusion Fissure sealing is effective for caries prevention among children. Rural children should be the focus of fissure sealing.更多还原