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骨龄是表示个体发育成熟程度最准确的尺度。为准确了解高氟对骨龄的影响,我们选取水氟为8.1mg/L的123团一连和水氟为8.0mg/L的128团15连为调查点,以水氟为0.37mg/L的131团子校为对照点,对7～16岁本地生长的儿童青少年355人进行了调查。拍摄左手正位片,骨龄评价按李氏百分计数法。高氟区儿童176人的骨龄落后率为38.64％,对照区儿童179人的落后率为8.94％,高氟区非常显著地落后于对照区,说明高氟对骨龄有影响。高氟区男性91人的骨龄落后
Bone age is the most accurate measure of individual developmental maturity. In order to get an accurate understanding of the effect of high fluoride on bone age, we selected 123 regiments of 8.1 mg / L water and 128 regiments of 8.0 mg / L fluoride as investigation points, with a water fluoride of 0.37 mg / L Triton schools as a control point for 7 to 16-year-old children and adolescents locally grown 355 people were investigated. Shooting left anteroposterior film, bone age evaluation by Lee’s percentage method. The 176 patients in the high fluoride area had a bone age of 38.64% and the backward rate of 179 children in the control area was 8.94%. The high fluoride area lags behind the control area very significantly, indicating that high fluoride has an impact on the bone age. 91 of the men in the high fluoride area have a backward bone length