FR-Ⅲ型功能调节器治疗安氏Ⅲ类错牙合的临床观察

FR-Ⅲ functional regulator apparatus in the treatment of class Ⅲ malocclusion occlusal clinical observation

目的:初步探讨FR-Ⅲ型功能调节器治疗乳牙期和替牙期功能性和轻度骨性Ⅲ类错牙合的疗效和治疗体会。方法:选择乳牙期和替牙期功能性和轻度骨性Ⅲ类患儿38例,采用FR-Ⅲ型功能调节器治疗,分别于矫治器前、矫治后拍摄正中牙合位的X线头颅定位侧位片后,进行头影测量分析。结果:38例患儿经FR-Ⅲ型功能调节器治疗后,反牙合解除,前牙覆牙合、覆盖正常,磨牙为中性关系,面型由治疗前的轻凹面型转变为直面型,侧貌形态满意。X线头影测量显示治疗后SNA角、ANB角、wit's值增大,U1-L1中切牙角减小。结论:FR-Ⅲ型矫治器在治疗安氏Ⅲ类错牙合时,促进了上颌的发育,相对抑制了下颌骨的生长,比较有效地协调了上、下颌骨的生长发育,且使软组织面型得到了较明显的改善。

Objective Investigate the FR- III type functional regulator embodied in the treatment of patients with primary teeth period and mixed dentition function and mild skeletal class Ill malocclusion （occlusal） efficacy and treatment experience. Methods To choose deciduous teeth Phase and functional dentition period and mild skeletal class Ⅲ 38 cases in children,FR-Ⅲ type functional regulator treatment,Respectively, before the appliance,the appliance after shooting the middle （occlusal） bit of X-ray cephalometric radiographs and cephalometric analysis. Results 38 patients by the FR- lU type functional regulator therapy,anti-（occlusal） release,front teeth cover （occlusal） covering normal molars as a neutrat relationship,face treatment before the light concave transition confront type, cephalometric morphology satisfaction.The X CEPHALOMETRIC treatment SNA angle, ANB angle wit＇s value increases, U1-L1 incisor angle decreases. Conclusion FR-III the correction instrument in the treatment of the Class Ⅲ wrong （occlusal） to promote the development of the maxillary and mandibular growth relative inhibition,coordination on the growth and development of the mandible, and soft tissue surface type has been significantly improved.