为了解儿童龋病的流行规律,我站对县镇内2～12岁2008名儿童进行了调查。调查按照1982年制订的《全国学生龋病、牙周病流行病学调查方法》进行。2008名儿童,乳牙患龋1155名,乳龋率57.5%;其中6～12岁1489名,恒牙患龋109名,恒龋率7.3%;乳、恒龋牙数4405个,患者龋均3.6个,总龋均2.2个。龋齿充填率为2.3%。龋病的年龄分布(附表)表中结果提示乳龋率在2～6岁随年龄增大而升高,在7～12岁随年龄而下降;恒龋率随年龄增大而升高。5、6岁乳龋率最高。患龋与性别关系2～6岁男性乳龋率为 In order to understand the prevalence of dental caries, I conducted a survey of 2008 children aged 2 to 12 in the county town. The survey was conducted in 1982 according to the “National Student caries, periodontal disease epidemiological survey method”. In 2008, there were 1,155 children with deciduous teeth with 57.5% of caries decay rate, including 1489 from 6 to 12 years old, 109 from permanent teeth, 7.3% from constant caries, 4405 with breast and permanent caries, and 3.6 A total caries were 2.2. Dental caries filling rate was 2.3%. The age distribution of dental caries (Table) The results in the table suggest that the caries prevalence rate increases with age at 2 ~ 6 years and decreases with age at 7 ~ 12 years. The rate of constant caries rate increases with age. 5,6-year-old milk caries rate is the highest. Relationship between caries and sex 2 to 6 years old male rate of caries was