儿童出生时所在地水中氟化物含量和其成年后牙齿脱落有着极大的联系。哥伦比亚大学梅尔曼公共卫生学院的健康政策教授奈德尔说:“你出生时接触的氟化物会影响你40几岁和50几岁时牙齿的脱落,而与你20岁和30岁时接触的氟化物没有关系。”奈德尔教授结合了美国疾病防控中心最近的调查,了解了在20世纪50年代和60年代饮用含氟化物 The amount of fluoride present in the water at the time of birth of a child is greatly linked to the loss of teeth in adulthood. Neddel, a professor of health policy at the Melman School of Public Health at Columbia University, said: “The fluoride you come into contact with affects your teeth in their 40s and 50s, but not with your 20s and 30s Of fluoride. ”" Professor Knight combined a recent survey by the Centers for Disease Control and Prevention in the 1950s and 1960s about fluoride