The Use of Customized Three-Dimensionally Printed Mandible Prostheses with a Pressure-Reducing Device: A Finite Element Analysis in Different Chewing Positions, Biomechanical Testing, and In Vivo Animal Study Using Lanyu Pigs

Table 7

Maximum values for total deformation, von Mises stress, von Mises equivalent strain, and principal stress of CMP-PRD and retentive screws by FEA under the clenching (P1 to P4) in the animal model.

Animal model	Total deformation max (mm)	Equivalent stress max (MPa)	Equivalent elastic strain max (mm/mm)	Strain energy max (mJ)	Equivalent stress max-ant. screws (MPa)	Equivalent stress max-post. screws (MPa)	Principal stress max-ant. mandible (MPa)	Principal stress max-post. mandible (MPa)
P1	0.501	516.599	0.009	0.617	73.232	52.619	59.038	37.335
P2	0.503	531.027	0.010	0.652	78.805	55.402	58.993	37.125
P3	0.501	484.110	0.010	0.599	87.966	46.309	59.039	37.413
P4	0.501	508.534	0.010	0.688	86.485	49.026	59.074	37.935