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Table 1 Material properties used in this study

From: Torque differences due to the material variation of the orthodontic appliance: a finite element study

Material Young’s modulus (MPa) Poisson’s ratio
Bone 2000 0.30
PDL bilinear: 0.05/0.20 ultimate strain, ε 12 7.0% 0.30
Tooth 20,000 0.30
Adhesive—composite resin 8823 0.25
Adhesive—RMGI 7600 0.30
Bracket—titanium 114,000 0.30
Bracket and ligatures—stainless steel 200,000 0.30
Bracket—ceramic 379,000 0.29
Wire—TMA 65,000 0.30
Wire—stainless steel 200,000 0.30
Ligature—elastomeric 100 0.30
  1. PDL periodontal ligament, TMA titanium molybdenum alloy, RMGI resin-modified glass ionomer cement