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目的探讨微种植支抗正畸矫正下颌磨牙重度阻生。方法 10例下颌第一、第二磨牙阻生患者,属于安格尔Ⅰ类,应用手术治疗拔出第二磨牙,予以微种植支抗、固定矫治器及口腔外科手术等措施,确保第一磨牙萌出。结果第三磨牙往近中移动取代第二磨牙发挥功能,治疗效果显著。结论下颌第一、第二恒磨牙同时阻生罕见、在矫治过程中应依据第一、第二磨牙位置及倾斜程度、咬合关系、第三磨牙形态位置制定合适的治疗方案,具有较高临床应用价值。
Objective To investigate the effect of micro-implant support orthodontics on severe impaction of mandibular molars. Methods Ten patients with impacted mandibular first and second molars, belonging to Class Ⅰ, were treated with surgical removal of the second molars and supported by micro-implant support, fixed appliance and oral surgery to ensure that the first molars Eruption. Results The movement of the third molars in the middle instead of the second molars played a significant therapeutic effect. Conclusions The first and second mandibular molars with simultaneous impaction are rare. During orthodontic treatment, appropriate treatment programs should be made according to the position and inclination of the first and second molars, the occlusal relationship and the shape of the third molars, which has a high clinical application value.