Figure 2

3D models, before creating symmetry, generated in accordance with SEM images from top view (visualized with Meshlab 2016). (A) Cleopatra johnstoni, (B) Bridouxia grandidieriana, (C) Spekia zonata, (D) Lavigeria grandis. Red dots highlight the areas that were loaded in the FEA, always at the inner area of the cusps. Arrows indicate the direction of force applied (along the anterior–posterior or anterior-medial axis).