Fig. 4
From: Stress on facial skin of class III subjects during maxillary protraction: a finite element analysis
Visualization of Von Mises criterion trend by means of a color-coded map describing the tensions intensity scale. Blue indicates lowest tensions, and red the highest. Color values for intermediate intensities are interpolated from cyan, green, and yellow. a. Stress distribution on the chin area induced by Petit FM (external and interior side). High tensions in red and yellow were observed at the level of the upper border of the chin and tended to decrease as moving outward. b. Stress distribution of the forehead area induced by Petit FM (external and interior side). Homogeneous blue area with no different colors indicates the lack of tensile tensions induced by the Petit FM