Patent ID: 8043093

Claim:
A dental root canal-filling composition comprising: A) 1 to 40% by weight of one or more kinds of polyolefin resins selected from the group consisting of polyethylene, polypropylene, and a copolymer of polyethylene and polypropylene; B) 1 to 60% by weight of a styrene block copolymer; C) 0.1 to 20% by weight of one or more kinds of thermoplastic resins selected from the group consisting of ester gum, rosin, an alicyclic saturated hydrocarbon resin having a number average molecular weight of 550 to 750, a terpene resin, and an aliphatic petroleum resin having a number average molecular weight of 700 to 1200; and D) 30 to 95% by weight of one or more kinds of inorganic fillers selected from the group consisting of zinc oxide, barium sulfate, zirconium oxide, titanium oxide, ytterbium fluoride, a barium glass, and an aluminosilicate glass.