Conclusion to save the tissueoftooth and restore the defect with cast post-core.
结论:应尽量保存牙体组织,其不足部分用核桩恢复。
2
They could be employed, Mr Murphy suggests, to place liver cells on a pre-built, liver-shaped scaffold or to form layers of lining and connective tissue that would grow into a tooth.
The toothof an archosaur, left, which was a direct ancestor of many dinosaurs, and the complete skeleton, including soft tissue of a horseshoe crab, right.