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目的为观察FR3矫治前牙反的效果，尤其是矫治疗后颅面形态的改变。方法采用FR3对17例乳牙期和10例替牙期前牙反患者进行矫治，通过头影测量分析其矫治前后的变化及矫治后与正常值的差异。结果FR3能促进上颌生长发育，唇倾上切牙；使下颌后退，有效地改善异常的间关系，乳牙期反矫治后，除下切牙舌倾、颏角尖锐外，基本恢复Ⅰ类骨面型，矫治效果好。替牙期反由于骨骼异常较严重，因而矫治后虽面型得到很大改善，但仍然遗留部分Ⅲ类骨面型。结论用FR3矫治前牙反宜早不宜迟。
The purpose is to observe the effect of anterior teeth anti-FR3 treatment, especially after the correction of craniofacial morphology. Methods 17 cases of deciduous teeth and 10 cases of anterior teeth counter-orthodontic patients were treated with FR3. The changes of their anteroposterior and posterior teeth were analyzed by cephalometric analysis and the differences between normal and post-treatment were analyzed. Results FR3 can promote maxillary growth and development, lip incisor and incisor; the mandibular backward, effectively improve the relationship between abnormalities, deciduous period after anti-correction, in addition to incisors tongue tilt, acute geniogram, the basic recovery of type Ⅰ bone type , Correction effect is good. Anti-tooth period due to abnormal skeletal more serious, so although the surface after treatment has been greatly improved, but still some of the remaining part of the bone type. Conclusion The treatment of anterior teeth with FR3 anti-Yi should not be late.