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1992年9～10月我们按“1987年全国龋病、牙周病调查”应用的标准对我县城区4所小学3040名7～12岁学生进行了龋病调查。结果:龋齿患病率为49.74％(1520/3040),龋均1.41,患者龋均2.83。其中,乳牙龋患率为45.70％(1392/3040),龋均1.30,患者龋均2.85;恒牙龋患率为6.32％(192/3040),龋均0.11,患者龋均1.77。男生龋患率为52.17％(853/1635),女生为46.90％(659/1405),差异非常显著(P<0.01)。统计表明,恒牙龋随
From September to October 1992, we conducted a dental caries survey on 3040 pupils from 7 to 12 years old in 4 primary schools in our county area according to the standards of 1987 National Investigation on Caries and Periodontal Disease. Results: The prevalence of dental caries was 49.74% (1520/3040), the caries was 1.41 and the caries was 2.83. Among them, the rate of deciduous caries was 45.70% (1392/3040), caries were 1.30, the caries was 2.85, the rate of permanent caries was 6.32% (192/3040), the caries was 0.11 and the caries was 1.77. The prevalence of dental caries was 52.17% (853/1635) for boys and 46.90% (659/1405) for girls, the difference was significant (P <0.01). Statistics show that permanent teeth with caries