A method for preparing a dental prosthetic material comprises the following steps: (1) soaking a tooth enamel, dentin or titanium sheet by using a phosphoric acid aqueous solution or a mixed aqueous solution of peroxide and phosphoric acid； and (2) adding an aqueous solution of phosphate ions and fluorine ions into an Agarose-Ca solution to obtain a mixed solution, and placing the tooth enamel, the dentin or the titanium sheet treated by step (1) into the mixed solution and obtaining the material on the tooth enamel, the dentin or the titanium sheet after the reaction is completed, the Agarose-Ca solution being an aqueous solution of the agarose and calcium nitrate. A method for preparing a tooth prosthetic and whitening material comprises the following steps: (1) soaking a tooth enamel, dentin or titanium sheet by using a phosphoric acid aqueous solution or a mixed aqueous solution of peroxide and phosphoric acid； and (2) placing the tooth enamel, dentin or titanium sheet treated by step (1) into a PEO-Ca solution； after standing, and continuing adding an aqueous solution of phosphate ions and fluorine ions to obtain the material after the reaction is completed, the PEO-Ca solution being an aqueous solution of polyethylene oxide and calcium nitrate. A method for preparing a dental prosthetic material comprises the following steps: (1) soaking dentin in an EDTA aqueous solution； and (2) placing the dentin treated by step (1) in a sodium hyaluronate-calcium nitrate hydrogel, adding an aqueous solution of dihydrogen phosphate ions and fluoride ions after standing, and reacting to obtain the dental prosthetic material, the sodium hyaluronate-calcium nitrate hydrogel being a mixture of sodium hyaluronate and calcium nitrate aqueous solutions.L'invention concerne un procédé pour préparer un matériau prothétique dentaire, qui comprend les étapes suivantes : (1) le trempage d'un émail de dent, d'une dentine ou d'une feuille de titane par utilisation d'une solution aqueuse
