Fig. 1

Schematic diagram of the preparation of an injectable bioceramics-containing composite hydrogel and its application in the regeneration of innervated dentin-pulp complex. The injectable composite hydrogel was prepared by incorporating lithium calcium silicate (LCS) bioceramics into GelMA hydrogel. The bioceramics-containing composite hydrogel was in situ injected and then crosslinked by blue light to fill the defects. Multiple bioactive Li, Ca and Si ions released by the composite hydrogel could promote odontogenesis and neurogenesis, thus contributing to the regeneration of dentin-pulp complex with innervation