作者于1972年选择饮水中含氟量极少的县城,对6所小学生进行实验。方法是在教师的监督下使学生每天咀嚼含1毫克的酸化磷酸氟化物片20秒钟,将唾液混合物用力地在牙齿之间来回漱洗30秒钟后再咽下。每周1次使用0.2％氟化钠溶液10毫升漱口60秒钟, The author chose to drink water in 1972, the county town with very little fluoride, six primary school students to experiment. The method is to have the student chew 1 mg of acidified phosphate fluoride tablets daily for 20 seconds under the supervision of the teacher and force the saliva mixture back and forth between the teeth for 30 seconds before swallowing. 1 week using 0.2% sodium fluoride solution 10 ml mouthwash 60 seconds,