Rabbits were killed at the 3rd day, 1st,2nd,3rd,4th,6th,10th,12th weeks.Undecalcified section was prepared for histologic examination.

• 结果哈弗系统再建的组织学表现为哈弗系统中央管管腔扩大、管壁皮质骨溶解、管腔内出现大量的成骨细胞。