Application of calcium phosphate cement containing bioactive glasses for endodontic therapy

用含有生物活性玻璃的新型磷酸钙骨水泥(CPC)作为盖髓剂，观察到牙本质桥的形成。新型磷酸钙骨水泥与氢氧化钙在牙本质桥形成能力上无显著差异。在牙本质桥形成过程中，牙髓内可见一些凋亡性细胞。提示60%左右的凋亡性细胞为单核/巨噬细胞，含TUNEL+核，其余为牙髓细胞。与羟基磷灰石作为骨移植材料相比，新型CPC在新骨形成方面没有明显差异。

The dentin bridge formation was observed when a new calcium phosphate cement (CPC) that contained bioactive glasses was used as a pulp capping agent. And there was no significant difference in the ability of dentin bridge formation between the new CPC and a calcium hydroxide. Some apoptic cells were observed in the pulp during dentin bridge formation. It was suggested that about 60% of apoptic cells should be monocytes/macrophages, which contained TUNEL+ nucleus, and the rest should be pulp cells. The new CPC did not make a significant difference in the new bone formation compared with hydroxyapatite as a bone grafting material.