Objective: To study the effects of gradual distraction of growing bone (distraction osteogenesis) with bifocal distraction for segmental mandibular defect.
Objective: To study the effects of gradual distraction of growing bone (distraction osteogenesis) with bifocal distraction for segmental mandibular defect.
目的：观察自行研制的转移盘牵引成骨器（bifocal distraction osteogenesis）整复山羊下颌骨节段性缺损的治疗效果。