结果：3个月后，实验组与对照组种植体周围骨小梁形成及纤维组织增生相近。
Result: After all animals were treated for 3 month , Trabeculation of bone around the implants of immediate implantion and delayed implantion was similar.
牵张结束时，血管密度由骨小梁形成区带（MCF）向纤维区带（FIZ）递减；
At the end of distraction, mierovessel density was decreased from microcolumn formation(MCF)zone to fibrous interzone(FIZ);
结果种植体植入后第14天，实验组和对照组种植体表面以及骨髓腔内均可见少量的新生小梁骨形成。
Results in both control and Emdogain-applied groups, thin trabecular new bone formation was found over the implant surfaces and within marrow Spaces at 14 days after the implantation.
髓芯减压加BMP骨泥治疗组4周后镜下改变为大量新生骨形成，爬行替代坏死的骨小梁，且在新生骨周围有大量的新生血管形成。
There were a lot of new growth bone formation to creeping replace necrotic bone trabeculae 4 weeks after core decompression and bone grafting and BMP.
HE染色光镜观察：PMMA与骨小梁松散结合，界限明显，未见PMMA吸收和新生骨形成；
Light microscopic evaluation(HE staining)showed that PMMA was in loose contact with the bone trabecula, PMMA could not be resorbed, and new bone could not be found.
组织学检查显示：对照组中可见大量团聚软骨细胞、骨小梁紊乱，无明显骨皮质、髓腔形成。
Histology showed that control group had massive cartilage cell gathering together and bone trabecula disturbance, it had no significant bone cortex and medullary cavity formation.
组织学检查显示：对照组中可见大量团聚软骨细胞、骨小梁紊乱，无明显骨皮质、髓腔形成。
Histology showed that control group had massive cartilage cell gathering together and bone trabecula disturbance, it had no significant bone cortex and medullary cavity formation.
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