METHOD FOR MANUFACTURING POSITIONING TRAY AND BRACKET WITH POSITIONING HOOK FOR MANUFACTURING POSITIONING TRAY

摘要

The present invention discloses a method for manufacturing a positioning tray and a bracket with a positioning hook for manufacturing the positioning tray. The method for manufacturing the positioning tray comprises the following steps: acquiring an original dental impression and an ideal dental impression; transforming the ideal dental impression to a three-dimensional digital model and drawing each bracket body; drawing a positioning hook on the bracket body; making a wax pattern of a bracket with the positioning hook by using a wax pattern machine; casting, with the wax pattern as a mould core, a blank of the bracket with the positioning hook which then receives surface treatment; after the surface treatment, assembling the bracket with the positioning hook to the original dental impression and performing film lamination to obtain a positioning tray, and finally removing the positioning hook to obtain the bracket matching the positioning tray. The bracket with the positioning hook is manufactured for implementing the method. It is unnecessary to make an integrated model of the bracket and dental impression, which greatly reduces the production cost. Moreover, a finished appliance can be obtained after cutting off the positioning hook, and it is unnecessary to cast a separate bracket additionally, thereby saving costs and shortening the production cycle.