新疆温宿县中小学生氟牙症与龋病流行病学调查

Epidemiologic Survey of Dental Fluorosis and Caries in School Students in Wensu County in Xinjiang

目的 了解新疆温宿县中小学生氟牙症和龋病发病特点及相互关系。方法 按Dean分度标准和WHO第3版《口腔健康调查基本方法》对 15 2 7名 6～ 16岁维、汉族学生进行氟牙症和冠龋流行病学调查 ,并以电极法进行水和尿氟含量测定。结果 维、汉族氟牙症患病率和指数分别为 73.70 %、6 4.6 7%和 1.6 47、1.30 3 ;维、汉族患龋率和龋均分别为 6 1.19%、42 .6 6 %和 1.6 48、1.0 2 3 ;氟牙症组与非氟牙症组患龋率和龋均分别为 5 1.94%、5 2 .99%和1.30 5、1.44 9。水氟含量 :2～ 5mg/L ,尿氟含量 :维 5 .2 8mg/L ,汉 3.6 4mg/L。结论 新疆温宿县学生氟牙症患病率高但患龋率并无下降 ,维族学生氟牙症和龋病的患病率均显著高于汉族 ,氟牙症组与非氟牙症组患龋情况无显著差异 ,可能与摄氟量过高、口腔卫生差、医疗条件有限等因素导致龋病上升有关。

Objective To assess the relationship between the dental fluorosis and caries,and their prevalence features in school students in Wensu county in Xinjang.Methods The study groups consisted of 1 527 Weuer and Han students at the age of 6 to 16. Dental fluorosis and caries diseases were assessed strictly by Dean's Classification Standard and WHO 'Oral Health Surveys Basic Methods'(the 3rd ed).The concentration of fluorine in water and urine was measured by using selective electrod. Results The prevalence and index of dental fluorosis in Weuer and Han students were 73.70%,64.67%,1.647,1.303, respectively.The prevalence of dental caries and DMFT were 61.19%,42.66%,1.648,1.023 respectively.The corresponding values were 51.94%,52.99%,1,305,1.449 for students of fluorosis group and non fluorosis group, respectively. The fluorine degree of water was 2～5mg/L,the average value of fluorine in urine was 3.64mg/L in Han students,and 5.28mg/L in Weuer students.Conclusions The prevalence of dental caries didn't decrease, eventhough the prevalence of fluorosis was high in Wensu county. The prevalence of fluorosis and dental caries in Weuer students were significantly higher than those in Han students.It showed no significant different between the group of fluorosis and the group of non fluorosis in the prevalence of dental caries, perhaps due to the high fluorine intake, poor oral hygiene, and unqualified medical service. [