A series of 3D models are printed with minor tooth movement differentiation between the models, and clear aligners are created for each model to create a seamless and brace-free treatment of malalignment.
The Schwarz appliance is utilized to achieve transverse expansion. A single expansion screw is used to achieve expansion although in some cases an additional screw may be required as per the image. Schwartz appliances are primarily used on the upper arch and are removable.