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Table 4 Maximum Von Mises stresses in the maxillofacial structures when 250-g force was applied at three different angulations in two clinical simulations (A & B) (in MPa)

From: Biomechanical effects of Skeletally anchored Class III elastics on the maxillofacial complex: a 3D finite element analysis

  Simulation A (Maxillary protraction without midpalatal expansion) Simulation B (Maxillary protraction with midpalatal expansion)
10° 20° 30° 10° 20° 30°
Nasal bone 6.38 3.76 1.49 29.06 26.15 23.25
Maxilla 23.70 17.26 12.28 54.66 43.73 38.26
Zygomatic bone 21.47 21.83 21.85 28.26 22.89 20.04
Temporal 3.80 3.55 3.28 19.06 17.16 15.25
Mandible 6.65 2.96 1.55 7.82 6.25 5.00