A modeling method of customized brackets and individualized trays for orthodontic treatment

In the process of orthodontic treatment, in order to make patients adorn appropriate brackets fast and accurately, this paper proposes a new modeling method of customized brackets and individualized trays. First of all, as the straight-wire can smoothly pass through all bracket slots after orthodontic treatment, bracket bodies in the database are positioned to the tooth surfaces automatically. Then some of them may be adjusted manually in accordance with specific conditions. Subsequently, customized brackets are designed based on the teeth morphology of patient. Finally, we can create each individualized tray rapidly on the basis of isometric extrude operation and Boolean operation. Some experiments have been tested by 3D printing technology and modeling platform. The results proved that the proposed modeling method has higher efficiency and the bonded bracket positioning is accurate and reliable.