PURPOSE: To easily manufacture a prosthesis denture excellent in beauty, shape precision and mucous compatibility by forming a plastic photopolymerizing composite to manufacture a prosthetic artificial tooth precursor, and hardening denture bed member by photo irradiation.
CONSTITUTION: A prosthesis denture precursor 10 has at least one denture 12 having a dental root part 14 and an denture bed member 20 for holding the dental root part 14 of the artificial tooth 12. Since the artificial bed member 20 is plastic, occlusion and denture arrangement can easily be regulated by moving the artificial tooth 12 held thereby by hands. The form of the denture bed member 20 can also easily be regulated. Since a photopolymerizing composite is irreversibly hardened, the artificial tooth bed member 20 is irreversibly hardened by irradiating the prosthetic artificial tooth precursor 10 with light to fix the artificial tooth 12 to the denture bed member 20. The photopolymerizing composite contains an unhardened or semi-hardened photopolymerizing acryl resin. The acryl resin means acrylic acid, methacrylic acid or derivatives thereof.
TAMURA MASAKI
KITAMURA TOKUKAZU