作者对美国得克萨斯州16个地区的饮水含氟量和当地出生的儿童进行调查。氟斑牙诊断依 Dean 氏的1930年六级分类法为准,但本文以中度和重度视为异常,其余的正常、可疑、极轻和轻度均视为正常。作者还调查了儿童的种族、母乳喂养时间、使用含氟物质和家庭经济状况等。并测定了以下水质项目:总溶解固体(TDS)、钙、钾、锌、 The authors investigated the fluoride content of drinking water and children born locally in 16 districts of Texas in the United States. The diagnosis of dental fluorosis was based on Dean’s 1930 six-level classification, but this article was considered moderate and severe as an abnormality. The remaining normal, suspicious, very mild and mild were considered as normal. The authors also examined children’s ethnicity, breastfeeding times, the use of fluoride-containing substances and household economic status. The following water quality items were measured: total dissolved solids (TDS), calcium, potassium, zinc,