【摘要】 本文旨在探讨固定方法对下颌骨骨折愈合的机制的影响。研究选用家兔１５只，分３组，造成人工骨折，进行钢丝缝扎、非加压和加压坚固固定。通过肉眼、组织学观察反抗挠曲愈合强度测定作组间比较。结果显示坚固固定下，外骨痂体积减小，愈合强度增大，愈合无软骨参与，表现为膜性化骨过程；加压固定下，骨修复成份自初始便具备方向特性，直到骨形成，总体呈现裂隙愈合机制。更多还原

【Abstract】 n this paperi,15 rabbits with fracture of the body of the mandibule were divided intothree groups. The fracture sites were separatly fixed by stainless wire, non- compressionplate and compression plates. The animals of each group were sacrificed at 2 、4、 6、 8weeks postoperatirvely. The comparison among three groups were proceeding based onhistological observation and biomechanical measurement . The results demonstrated thatdecreasing of external callus and increasing of healing strength under rigid fixation. Incomparison with stainless wire osteosynthes is , a so-called “fibrous process ” withoutintervention of cartilage took place in healing.更多还原