From: The cross-sectional effects of ribbon arch wires on Class II malocclusion intermaxillary traction: a three-dimensional finite element analysis
Poisson's ratio
Young's modulus (MPa)
Cortical bone [17, 18]
0.26
13,700
Cancellous bone [14, 17]
0.30
1370
Teeth [19]
19,600
PDL [19, 20, 23]
0.45
0.667
Tubes, brackets [21, 22]
206,000
Arch wire [21, 22]
176,000