A finite element study of the Quad-helix appliance deformation when submitted to a force

To obtain the numerical model by means of FEM method, the appliance chosen as search object was the 25 mm Quad-helix in 0.9 mm orthodontic wire, both fixed and removable The following software were used: SolidWorks® to achieve the 3D geometric designs and a post-processing program that comes with the Ansys code for the numerical simulation.