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目的探讨FR Ⅲ和固定矫治器的联合应用在矫治轻中度骨性Ⅲ类错患者中的临床疗效。方法选取54例上颌骨发育不足,伴或不伴下颌前伸的轻中度骨性Ⅲ类错患者,先以FR Ⅲ引导刺激上颌骨发育和功能性后退下颌,待前牙锁结解除、侧貌改善后再予固定矫治。结果 54例轻中度骨性Ⅲ类错患者矫治结束后,上颌骨和下颌协调,侧貌改善,反纠正。结论 FR Ⅲ和固定矫治器联合应用可以很好的矫治上颌骨发育不足的轻中度骨性III类错。
Objective To investigate the clinical effect of combined application of FR Ⅲ and fixed appliance in the treatment of patients with mild to moderate skeletal Class Ⅲ malocclusion. Methods 54 cases of maxillary hypoplasia, with or without mandibular protrusion of mild to moderate skeletal class Ⅲ malocclusion patients, the first guide to FR Ⅲ to stimulate the development of the maxillary bone and functional retraction of the mandible, to be the anterior locking removal, After the improvement of the appearance of a fixed correction. Results 54 cases of mild to moderate skeletal Class Ⅲ malocclusion patients after correction, the maxilla and mandible coordination, improve the appearance, anti correction. Conclusion The combined application of FR Ⅲ and fixed appliance can be used to correct mild to moderate skeletal Class Ⅲ malocclusion with maxillary hypoplasia.