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为了解我市李龄前儿童龋齿患病情况,我院于1996年4～9月对全市24所幼儿园儿童进行了龋齿患病情况调查.1 对象和方法共调查3～6岁儿童3504人.其中男1817人,女1687人;3岁组578人,4岁组837从,5岁组803人,6岁组1246人.由五官科医生在侧照灯或自然光线下依靠视诊检查计数,并按上下、左右颌位乳牙排列进行统计归类处理登记.共调查受检儿童3504人,发生龋齿 2094人,龋齿发生率 59.75%.统计结果显示:①各年龄组儿童龋齿发病率随年龄增长呈上升的趋势;大、小班儿童龋齿发生率比较差异显著(x~2=32.24,P<0.01);受检儿童龋均2.68,患龋儿童龋均4.47.②龋齿在乳牙排列中的分布:上、下中切牙龋齿发生率最高,其次是下颌第一、二乳磨牙和上侧切牙,下中、侧切牙龋齿发生率最低;上颌龋齿发生率呈中间高、两侧低,下颌则是中间低、两侧高的规律.
In order to find out the prevalence of dental caries in pre-Liling children in our city, we investigated the prevalence of dental caries in 24 kindergarten children in our city from April to September in 1996. 1 Subjects and Methods A total of 3,504 children aged 3 to 6 years were investigated. Including 1817 males and 1687 females, 578 females aged 3 years, 837 females aged 4 years, 803 females aged 5 years and 1246 females aged 6 years, which were counted by visual acuity examination by doctors of ENT in sidelight or natural light , And according to the up and down, left and right maxillary position of the deciduous teeth arranged for statistical classification registration.A total of 3504 children were examined, the incidence of dental caries was 2094, the incidence of dental caries was 59.75% .The results showed that: ①The incidence of dental caries in children of all ages with age (X ~ 2 = 32.24, P <0.01). The caries of the tested children was 2.68, the caries of the carious children was 4.47. (2) The distribution of dental caries in the arrangement of deciduous teeth The incidence of dental caries in the upper and lower incisors was the highest, followed by the lowest ones in the first and second molar, the lower incisors, the lower incisors and the lower incisors. The incidence of maxillofacial caries was high in the middle, low on both sides and lower in the mandible Is the middle of the low, high on both sides of the law.