After pulp amputation, complete pulp healing requires not only reparative dentin production but also fibroblast proliferation, nerve fiber growth, and neoangiogenesis.

• 牙髓切除术后，牙髓的完全愈合不仅需要修复性牙本质形成，也需要成纤维细胞的增殖、神经纤维和血管的再生。