A Forsus is used while a patient is currently wearing braces where more of a consistent force is needed, un-like normal rubber band wear, where the patient has complete control of how often the force is applied to move the teeth. This appliance is made to reduce the overbite and promote the proper jaw growth in patients. Although it is not used of all cases, only cases where normal orthodontic elastics may not be able to correct the malocclusion.