CAJ | 학술논문

目的分析广东省汕头市地方性氟中毒病区改水后,不同改水时间、不同尿氟含量与儿童龋齿检出率的关系.方法 2009年,在广东省汕头市地方性氟中毒病区选择4个已改水村(井陈店镇溪北村、峡山镇义英村、陈店镇范溪村、司马镇仙港村)作为病区村,在非氟中毒病区选择都镇上南村作为对照村,共5个村作为调查点.每个调查点按东、西、南、北、中5个方位各选择1个采样点,每个采样点各采集末梢水1份,进行水氟测定.在村小学抽取6～ 14岁小学生,男女各半,进行龋齿患病情况调查,同时采集6～ 14岁小学生50 ml课间尿样,进行尿氟测定.水氟和尿氟含量采用氟离子电极法进行检测,龋齿检查按《口腔预防医学》(第3版)中推荐的标准进行.结果 4个病区村居民饮用水氟含量均低于1.0 mg/L(国家标准).病区村小学生尿氟含量与对照村相比,其中改水6年的仙港村儿童尿氟中位数(四分位间距)为0.620 (0.380)mg/L,与对照村[0.480(0.290)mg/L]比较,差异有统计学意义(P＜0.05).4个病区村儿童龋齿检出率[45.26％(355/785)、43.65％(509/1166)、34.98％(99/283)、31.97％(332/1037)]与对照村[49.73％(651/1309)]比较,差异均有统计学意义(P均＜ 0.05).尿氟为0.2～＜0.4 mg/L组与0.00 ～＜ 0.20 mg/L组的儿童龋齿检出率比较,差异有统计学意义(OR=0.222,x2=3.910,P＜0.05).结论尿氟水平低是龋齿发生的主要因素之一,为了降低龋齿检出率有必要设定我国水氟含量卫生标准的下限.
목적 분석광동성산두시지방성불중독병구개수후,불동개수시간、불동뇨불함량여인동우치검출솔적관계.방법 2009년,재광동성산두시지방성불중독병구선택4개이개수촌(정진점진계북촌、협산진의영촌、진점진범계촌、사마진선항촌)작위병구촌,재비불중독병구선택도진상남촌작위대조촌,공5개촌작위조사점.매개조사점안동、서、남、북、중5개방위각선택1개채양점,매개채양점각채집말소수1빈,진행수불측정.재촌소학추취6～ 14세소학생,남녀각반,진행우치환병정황조사,동시채집6～ 14세소학생50 ml과간뇨양,진행뇨불측정.수불화뇨불함량채용불리자전겁법진행검측,우치검사안《구강예방의학》(제3판)중추천적표준진행.결과 4개병구촌거민음용수불함량균저우1.0 mg/L(국가표준).병구촌소학생뇨불함량여대조촌상비,기중개수6년적선항촌인동뇨불중위수(사분위간거)위0.620 (0.380)mg/L,여대조촌[0.480(0.290)mg/L]비교,차이유통계학의의(P＜0.05).4개병구촌인동우치검출솔[45.26％(355/785)、43.65％(509/1166)、34.98％(99/283)、31.97％(332/1037)]여대조촌[49.73％(651/1309)]비교,차이균유통계학의의(P균＜ 0.05).뇨불위0.2～＜0.4 mg/L조여0.00 ～＜ 0.20 mg/L조적인동우치검출솔비교,차이유통계학의의(OR=0.222,x2=3.910,P＜0.05).결론 뇨불수평저시우치발생적주요인소지일,위료강저우치검출솔유필요설정아국수불함량위생표준적하한.
Objective To analyse the relationship between children urine fluoride level,time of water supply improvement and detection rate of dental caries in fluorosis areas after water supply improvement.Methods The following five villages were selected as survey spots:four of the water quality improved villages(Xibei Village of Jingchen Town,Yiying Village of Xiashan Town,Fanxi Village of Chendian Town and Xiangang Village of Sima Town) as diseased villages in Shantou City,Guangdong province,and Shangnan Village of Du Town in nonfluorosis areas as a control village in 2009.Five sampling points were selected in each survey point according to five directions of east,west,south,north and center,and one tap water sample was collected in each sampling point to do water fluoride determination.In the primary school of the village,6 to 14-year-old pupils were randomly selected,half male and half female,to carry out the prevalence of dental caries survey.At the same time,afterclass urine samples were collected to determine urinary fluoride.Water and urine fluoride were determine by fluoride selective ion electron and caries were checked according to the standards recommended by "The Oral Preventive Medicine " (3rd edition).Results The fluoride in drinking water was all less than 1.0 mg/L(the national standard).Compared with the control village [0.480 (0.290) mg/L],the median (range interquartile) of urinary fluoride in Xiangang village[0.620(0.380)mg/L] was higher,and the difference was statistically significant (P ＜0.05).Prevalence of caries in the four endemic villages [45.26％ (355/785),43.65％ (509/1166),34.98％ (99/283),31.97％(332/1037)] were lower than that of the control village[49.73％(651/1309)],and the differences were statistically significant(P ＜ 0.05).Compared children dental caries detection rate of urinary fluoride 0.2 ～＜0.4 mg/L group with 0.00 ～＜ 0.20 mg/L group,the differences were statistically significant(OR =0.222,x2 =3.910,P ＜ 0.05).Conclusions Low concentration of urinary fluorine is one of the factors influencing prevalence of children' dental caries.It is necessary to establish lower limit of hygienic standard on fluoride in drinking water for reducing the prevalence of caries.