龋病是口腔最普遍的疾病之一,尤以儿童时期乳牙由于钙化程度较恒牙低,因而龋病进展快,常于极幼小时出现较高的龋患率。为了探讨学龄前儿童的龋病状况,1979年6月我们对厂三个幼儿园,一个民办托儿所及大部散在学龄前儿童1.457名进行了口腔普查,现将调查情况报告如下:一、龋患率:受检儿童1457名,患龋人数789名,龋患率为54.15%,其中男性774名, Dental caries is one of the most common oral diseases, especially in childhood deciduous teeth due to lower than the permanent teeth of deciduous teeth, caries rapid progress, often at very young age higher caries prevalence. In order to investigate the caries status of preschool children, we carried out the oral census on three kindergartens, one private nursery school and 1.457 most preschool children in our factory in June 1979. Now we report the investigation as follows: First, the caries prevalence rate: 1457 children were examined, 789 people with caries, caries rate was 54.15%, of which 774 were males,