To prevent the phenomenon that a viscous material drips due to pressure in a cartridge body even after the dental viscous material is extruded in the cartridge for the dental viscous material used with a handle-type applier.

The structure of the extrusion section of the cartridge for the dental viscous material has two or more collar portions having elasticity to deform as if to project the central portion toward the nozzle side of the cartridge body during the extrusion of the dental viscous material and to return to the original shape when a force pushing the inner stopper is removed and having an outside diameter equal to the inside diameter of the cartridge body in the inner stopper stored in the cartridge body having the front end provided with a nozzle and an opened rear end, and an inside cross-sectional shape of the same diameter.