Objective: To evaluate the effect of segmental arch technique and implant reinforcing anchorage on depressing the elongated opposed teeth for preparing enough space for mandibular dental implant.
目的：探讨片段弓技术联合部种植支抗压低上颌磨牙，为下颌牙缺失的种植修复提供足够的合间距离。
Purpose: This retrospective study evaluated the change in pharyngeal airway space associated with surgical mandibular setback.
目的：下颌骨后退术与咽气道间隙的变化的关系。
There was a strong correlation between the amount of mandibular setback and the decrease in pharyngeal airway space area.
咽气道间隙面积与下颌骨后退量明显相关。
Objective:To evaluate the effect of segmental arch technique and implant reinforcing anchorage on depressing the(dongated opposed teeth for preparing enough space for mandibular dental implant.
目的∶采用种植体支抗直接牵张上颌骨骨缝成骨技术探索颅颌面骨发育不足治疗新方法，观察在牵引力的作用下支抗种植体的骨结合情况。
Objective:To evaluate the effect of segmental arch technique and implant reinforcing anchorage on depressing the(dongated opposed teeth for preparing enough space for mandibular dental implant.
目的∶采用种植体支抗直接牵张上颌骨骨缝成骨技术探索颅颌面骨发育不足治疗新方法，观察在牵引力的作用下支抗种植体的骨结合情况。
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