A method of manufacturing dentures based on 3D printing

Abstract

The invention provides a manufacturing method of a false tooth based on 3D (three dimensional) printing. The method comprises the steps of scanning a model by using a desktop model scanner; designing the false tooth on a scanned model, exporting a STL file when the design is finished; importing the exported STL file into a Magic publishing software, overturning the imported tooth crown by 180 degrees along the direction of a Y axis by a location moving tool, and moving 1.5 mm along the positive direction of a Z axis; then, checking whether the file is damaged through a checking tool, inserting a support rod through a part tool, performing split layer treatment on the file through a platform tool, and calculating the file; importing the calculated file into a 3D metal printer, putting titanium alloy powder or cobalt-chromium alloy powder into a stock bin, spreading the powder, and creating a new print job; using a wire cut electric discharge machine to cut off a printed tooth after the printing is completed; polishing off the part of a cut-off false tooth with the support rod by using a sander, and the processing is completed.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a method for manufacturing dentures based on 3D printing. Background technique [0002] The denture processing industry is a high-precision industry. The existing denture processing methods all use wax casting as the main production process. There are many auxiliary processes and auxiliary materials. The working environment of the technicians is poor, and there are many dust and odor gases. [0003] There are two existing denture processing methods: one is traditional casting, which consumes a lot of materials and labor costs, and will gradually be replaced by high-tech. The other is to use a metal cutting machine to cut the dentures. The accuracy is relatively high, but the materials are expensive and the efficiency is low. [0004] The existing denture processing methods have the following disadvantages: [0005] (1) There is a 10% possibility of casting deformation and incom...

AI Technical Summary

Problems solved by technology

[0005] (1) There is a 10% possibility of casting deformation and incompleteness;

[0006] (2) It will produce smoke and dust gas, which is harmful to the human body and does not meet the sustainable development of environmental protection;

[0007] (3) In the existing casting process, 33.5% of the materials are used as supports and casting heads, and the waste of materials is large;

[0008] (4) Processes such as waxing, casting, car gold, polishing, and grinding are required, and the process is complicated and the efficiency is low;

[0009] (5) There are many auxiliary materials, many processes, many technicians, and high cost

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