After treatment , the urine fluoride value was increased significantly in the fire needle group [ ( 7.89 + / - 3.61 ) mg/L vs ( 9.81 + / - 4.17 ) mg/L , P < 0.01 ] and was increased in the electroacupuncture group [ ( 7.53 + / - 3.46 ) mg/L vs ( 8.97 + / - 4.21 ) mg/L , P < 0.05 ] .