The present invention relates to a method to manufacture a denture aid using a denture-molding flask of heterogeneous materials. The manufacturing method of a denture aid uses a denture-molding flask of heterogeneous materials, which: is formed by being combined with left and right side bodies (110, 120) to manufacture the denture aid has a resin inlet (104), where resin is injected, formed at an upper combining unit which is combined with the left and right bodies (110, 120) has injected material inlets (103), where plaster is injected as an injected material, formed at positions separated from the resin inlet (104) at a predetermined interval has a space unit formed inside the left and right bodies (110, 120) has an injected material injected from the injected material inlet (103) after a denture form of a wax material is injected in the space unit has a hollow unit (101) of the denture form formed with wax has a wax outlet (106), where melted wax is discharged, formed in the lower side of the combining unit of the left and right bodies (110, 120) when the injected material is inserted and heated and is formed by injecting and recharging resin through the resin inlet (104) in an empty space after the denture form is melted. The left and right side bodies minimize polymerization shrinkage and deformation during the thermal polymerization of a teeth shape aid manufactured inside the left and right bodies by being manufactured in heterogeneous materials. The left side body of the present invention is formed with a metal material having high thermal conductivity and the right side body is formed with a plastic material having low thermal conductivity. The denture aid formed using a denture-molding flask of heterogeneous material has a remarkable effect of being worn easily and having no irritation feeling after wearing as polymerization shrinkage is minimized during a thermal polymerization.COPYRIGHT KIPO 2017본발명은 이종재질의 의치 성형용 플라스크를 사용한 의치보조물 제조방법에 관한 것으로, 의치보조물을 제작하는
