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牵引成骨是在皮质切开或骨切开术后对愈合中的骨痂渐进性牵引以形成新骨的过程。作者研究了下颌牵引成骨对咀嚼肌的影响。 材料和方法 10条杂种狗气管内插管苯巴比妥麻醉后,沿右侧下颌升支斜线作5cm长切口,在骨膜上平面分离到下颌角以上,将两个2mm长皮质钉固定在下颌角,在其前方2.5cm固定两个相同的皮质钉,把牵引装置的夹子连接到皮质钉上,两个夹子之间行双皮质骨切开,凿骨线位于第三磨牙后方,松松关闭粘膜,螺母暴露于口腔中,通过旋转螺母进行牵引(附
Distraction Osteogenesis is the process of progressive traction of the callus in a healing process to form new bone after corticotomy or osteotomy. The authors studied the effect of mandibular distraction osteoporosis on masticatory muscles. MATERIALS AND METHODS Ten cannula endotracheal intubation tubes were anesthetized with phenobarbital and incised 5 cm along the right ramus ramus obliquely above the mandibular angle on the periosteum. Two 2 mm cortical screws were fixed at Mandibular angle, in front of 2.5cm fixed the same two cortical nail, the traction device clip connected to the cortical nail, between the two clips line double cortical bone, the chisel line behind the third molar, loose Close the mucosa, nuts exposed to the mouth, by rotating the nut for traction (attached