本文报告了永修县4～19岁幼托儿童和中小学生3263名龋病调查。结果45.79％的人患龋病,且全部龋牙中93.82％未治疗,仅1.60％填补。在恒牙列中,下颌第一磨牙患龋数为龋齿总数的一半左右,而全部磨牙龋占总数的80％以上。本文讨论了龋齿与年龄、性别、牙位和牙面的关系。 This article reports 3263 dental caries investigations among children aged 4 to 19 and primary and secondary school students in Yongxiu county. Results 45.79% of people had caries, and 93.82% of all caries were untreated, filling only 1.60%. In the permanent dentition, the number of dental caries in the first mandibular first molars is about half of the total number of dental caries, while the total molars occupy more than 80% of the total. This article discusses the relationship between dental caries and age, sex, teeth and teeth.