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目的:探讨FR-Ⅲ型功能调节器对不同年龄段骨性Ⅲ类错患者的矫治效果。方法:28例上颌发育不足为主的骨性Ⅲ类错患者,分成小年龄组(5～8岁)和大年龄组(9～12岁),采用FR-Ⅲ型功能调节器治疗,治疗前后拍摄头颅定位侧位片并用Winceph8.0X线头影测量软件进行分析。结果:FR-Ⅲ型功能调节器对两组患者均产生良好的矫治效果,上颌骨前移,下颌骨向后下旋转,反解除,侧貌明显改善。小年龄组患者在更短的治疗时间内获得更多的骨骼改变而牙代偿改变较小。结论:FR-Ⅲ型功能调节器对生长高峰期患者有效,在生长发育早期使用效果更好。
Objective: To investigate the effect of FR-Ⅲ functional regulator on patients with skeletal Class Ⅲ malocclusion in different age groups. METHODS: Twenty-eight patients with skeletal class Ⅲ malocclusion with maxillary hypoplasia were divided into two groups: the young group (5-8 years) and the older group (9-12 years old). The patients were treated by the FR-Ⅲ functional modifier Before and after filming cranial positioning lateral radiographs and using Winceph8.0X first cephalometric software for analysis. Results: The FR-Ⅲ functional modifier had a good effect on the two groups of patients. The maxillary advancement, the mandibular backward rotation, the anti- lifting, and the lateral appearance were obviously improved. Patients in the younger age group received more skeletal changes within a shorter treatment time with less compensatory dental compensation. Conclusion: FR-Ⅲ functional regulator is effective in patients with growth peak and early use in growth and development.