论文部分内容阅读
抽取界首市５ 个乡镇１０ 所中学和１１ 所小学中８ ～１５ 岁学生１５９２４ 人进行氟斑牙患病情况调查。平均患病率为３０ ．１８ ％ ；不同人群间患病率有较大差异。其中城市高于农村，大年龄组高于小年龄组。男性与女性差异无显著性。结果揭示要降低氟班牙的患病率，必须降低饮水中的氟含量，使其达到饮用水标准
A total of 15924 people from 10 middle schools in 5 townships in Jieshou City and 159 students from 8 to 15 years in 11 primary schools were surveyed to investigate the prevalence of dental fluorosis. The average prevalence was 30. 18%; prevalence among different groups have a greater difference. Among them, the cities are higher than the rural areas, the older age group is higher than the younger age group. No significant difference between men and women. The results revealed that in order to reduce the prevalence of the disease in Spain, the fluorine content in drinking water must be reduced to reach the drinking water standard