1. manufacturing process: in the parting mold manufacturing method, the oral impression of the upper jaw and the lower jaw are made separately, and the corresponding plaster models of the upper jaw and the lower jaw are made by reverse molding, while in the parting mold manufacturing method, the oral impression of the upper jaw and the lower jaw are put together and reversed as a whole to make a plaster model of the upper jaw and the lower jaw as a whole.
2. Model shape: Under the parting method, the models of the upper jaw and the lower jaw are separated, which can be displayed and operated independently, and need to be calibrated and assembled through a specific contraposition relationship. However, under the parting method, the models of the upper jaw and the lower jaw are connected, which simulates the real occlusal relationship of the upper jaw and the lower jaw.