The present invention relates to a flask for molding denture which manufactures a denture auxiliary matter. The flask for molding denture is formed by combining the left and right main bodies (110,120). Furthermore, the flask for molding denture (100) comprises the followings: a resin inserting hole (104) which is formed in the upper connecting part in which the left and right main bodies (110,120) are combined and injects resin； a filler injecting hole (103) which injects a filler by being located in the position separated with constant space to the resin inserting hole (104)； a hollow part (101) which is formed inside the left and right main bodies (110,120), and which charges the inserted resin from the resin inserting hole (104) and the filler from the filler injecting hole (103)； a wax discharging hole (106) which discharges the melted wax from a denture auxiliary matter while heating the resin and the denture auxiliary matter filled in the hollow part (101). The flask for molding denture of the present invention shortens a manufacturing time by not splitting the flask while injecting resin and removing wax in the manufacturing process of the denture auxiliary matter； manufactures the denture auxiliary matter which has small deviation by improving the quality thereby increasing work efficiency. Furthermore, the present invention can simply remove the wax by discharging a solid wax used for fixing the denture auxiliary matter and dewaxing to the outside of the flask as a liquid, can recycle the wax.본 발명은 의치 성형용 플라스크에 관한 것으로, 의치보조물을 제작하는 것으로 좌우몸체(110,120)의 결합으로 이루어지는 의치 성형용 플라스크에 있어서, 상기 의치 성형용 플라스크(100)는 좌우몸체가(110,120) 결합된 상부 결합부에 형성되어 레진이 주입되는 레진주입구(104)와； 상기 레진주입구(104)와 일정간격 이격된 위치에 형성되어 매물재가 주입되는 매물재주입구(103)와； 상기 좌우몸체(110,120) 내부에 형성된 공간으로서, 상기 레진주입구(104)와 매물재주입구(103)로부터 인입된 레진과 매물재가 충진되는 중공부(101)와； 상기 중공부(101)에 충진된 레진 및 의치보조물이 가열될 때, 의치보조물로부터 용융된 왁스가 배출되는 왁스배출구(106)를 포함하는 것으로, 본 발명의 의치 성형용 플라스크는 의치 보조물을 제작하는 과정 중 왁스제거와 레진삽입 공정동안 상기 플라스크를 무분할함으로써 제조시간을 단축시킬 뿐
