In order to study the breaking and chewing process of food in mouth,a chewing broken model was using discrete element method.Taking soybean as an example,the dynamic chewing process was simulated and the corresponding parameters were tested,including that between soybean and soybean,and between soybean and teeth.To verify the feasibility of the chewing model,threedimensional models of the first upper and lower molars were established using reverse engineering.The dentiform indenter that works with the textu...