摘要
目的研究河北省霸州氟中毒地区居民的龋齿以及氟牙症发病情况与当地饮用水氟的关系,以确定该地区较为安全的饮用水氟浓度。方法选择饮水氟在1～4 mg/L范围内的河北省霸州市氟中毒地区的4个村子作为研究地点,对4个村子中的饮用水氟、16～19岁人群氟以及人群的龋齿、氟牙症指数进行了调查。结果氟中毒地区饮用水氟与居民尿氟具有高度的正相关关系,相关系数0.949 6。5岁、12岁年龄组龋齿随水氟的增高有下降趋势,而15岁和18岁年龄组在水氟分别高于1.905和2.301 mg/L时,龋齿与水氟呈正相。12岁、15岁和18岁居民的氟牙症指数也与饮用水氟具有高度的正相关性。这3个年龄组出现轻度氟斑牙的最低饮用水氟分别为0.872、2.129和1.260 mg/L。结论该地区居民的饮水氟决定了当地居民氟的摄入量。15和18岁年龄组居民在水氟过高或过低时都会造成龋病的高发,在这一区域内,安全地饮用水氟为0.872 mg/L以下。
Objective To evaluate the relationship between dental caries in the residents exposed to fluorine in Bazhou region and the fluorine in local drinking water to determine the appropriate fluorine in drinking water of this region. Method In four fluorine exposure villages in Bazhou city, fluorine concentration in drinking water, urine of 16-to-19-year-old residents,DMFT(decayed,missing and filled teeth), and Index of fluorosis of 4 different age groups subjects, were tested respectively. Results The relation between fluorine in tap water and that in urine showed a close correlation with a linear regression coefficient of 0.949 6. DMFT of 5-year-old group and 12-year-old group residents decreased with the increasing of fluorine in drinking water, while the counterpart of 15-year-old group and 18-year-old group showed a positive correlation with fluorine in drinking water when it was higher than 1.905 mg/L and 2.301 mg/L, respectively. Index of fluorosis of 12-year-old, 15-year-old and 18-year-old group well correlated with the fluorine of drinking water as well. Conclusion The ratio of dental caries would prevail under the condition of either extremely low or high fluorine in drinking water. It is defined that the highest safe fluorine of drinking water, for 12-year-old, 15-year-old and 18-year-old groups are 0.872 mg/L, 2.129 mg/L and 1.260 mg/L, respectively.
出处
《中国地方病学杂志》
CAS
CSCD
北大核心
2005年第1期70-72,共3页
Chinese Jouranl of Endemiology
