The device is customized for each patient and follows a prescription submitted by the doctor. The device is manufactured using a medical grade thermoformed material called FasTrac™. The force application mechanism to the teeth is done by intentional distortion of the material while the aligners are seated in the mouth. Each new aligner in the series is made from a mold of the patient’s teeth that reflects subtle changes in their positioning from the prior aligner. The treatment is prescribed by the doctor to the EZ-Align® laboratory where they are made. Aligners can be adjusted by the prescribing doctor. Each EZ-Align® aligner is completely removable by the patient.