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目的:探讨一种改良推磨牙远移装置的临床效果。方法:选择AngleⅡ1错,上颌轻度前突或牙列拥挤,下颌正常或轻度后缩病例,第一期应用Nance托NiTi方丝多曲弓推磨牙远移矫治。第二期使用直丝弓矫治器矫治,治疗前后进行X线头影测量分析。结果:应用该矫治法解决了非拔牙矫治中间隙预备问题,为磨牙中性的建立创造了条件。结论:,Nance托联合多曲NiTi方弓推磨牙远移是一种方法简便、安全可靠,有效的非患者依从性矫治方法。
Objective: To study the clinical effect of a modified distal molars device. Methods: The patients with AngleⅡ1 malocclusion, mild maxillary protrusion or dentition crowding, normal or mild mandibular reduction cases, the first application of Nance care NiTi square wire multi-curved bowed molar remote correction. The second phase using straight wire appliance treatment, before and after treatment for X-cephalometry analysis. Results: The correction method was used to solve the gap preparation in non-extraction treatment, which provided the conditions for the establishment of molars. Conclusion: Nance care combined with multiple NiTi square arch molars remodeling is a simple, safe, reliable and effective non-patient compliance method.