This invention provides a biomimetic periodontal complex multilayer hydrogel
tissue engineering scaffold, its preparation method, and its application, relating to the technical field of
tissue engineering scaffolds. The biomimetic periodontal complex multilayer hydrogel
tissue engineering scaffold comprises, from the inside out, a
cementum repair layer, a periodontal
ligament repair layer, and an alveolar bone repair layer; the
cementum repair layer and the alveolar bone repair layer include a mineralized hydrogel layer; wherein the raw materials for preparing the mineralized hydrogel layer include modified
hyaluronic acid,
methacrylamide type I collagen, and hydroxyapatite; the alveolar bone repair layer includes a non-mineralized hydrogel layer; wherein the raw materials for preparing the non-mineralized hydrogel layer include modified
hyaluronic acid,
methacrylamide type I collagen, and
fibrin I. This invention precisely matches the mechanical and biological requirements of each layer of the periodontal complex through a three-layer structure, a reversibly
hydrazone-regulated viscoelastic gradient, and a differentiated biochemical microenvironment of nHAp / FBN1.