Foo L C, Chong Y H
Southeast Asian J Trop Med Public Health. 1975 Jun;6(2):264-8.
Twenty-four-hour urine samples and whole deciduous teeth from fluoridated (0.71 ppm) and non-fluoridated (0.14 ppm) areas together with some selected local food items were analysed for their fluoride content. The mean values for urinary fluoride were 0.90 ppm or 0.77 mg per day for the fluoridated area and 0.50 ppm or 0.52 mg per day for the non-fluoridated area. Assuming that half of all the fluoride ingested is excreted in the urine, this study suggests that the average daily fluoride intakes by adults in the fluoridated and non-fluoridated areas were about 1.5 mg and 1 mg respectively. The mean fluoride content of non-carious deciduous teeth from the fluoridated area was 416.89 ppm compared to 178.45 ppm in the low fluoride area.
对来自氟化地区（0.71 ppm）和非氟化地区（0.14 ppm）的24小时尿液样本、全口乳牙以及一些选定的当地食物进行了氟含量分析。氟化地区尿氟的平均值为0.90 ppm或每天0.77毫克，非氟化地区为0.50 ppm或每天0.52毫克。假设摄入的所有氟中有一半通过尿液排出，该研究表明，氟化地区和非氟化地区成年人的平均每日氟摄入量分别约为1.5毫克和1毫克。氟化地区无龋乳牙的平均氟含量为416.89 ppm，而低氟地区为178.45 ppm。
