METHODS OF ORTHODONTIC TREATMENT

摘要

A series of orthodontic appliances is used in sequence to move the patient's teeth to desired positions. In one aspect, the shape of at least a portion of the patient's dental arch is determined, and a series of appliances is then selected based on the determined shape. In another aspect, the appliances are resilient and used in a sequence such that the stiffness of the current appliance in use increases as the course of treatment progresses.