Dental restoration CAD (computer aided design)/metal 3D automatic processing method

Abstract

The invention discloses a completely novel dental restoration automatic processing method; according to the method, a dental restoration is processed through optical scanning and by virtue of a composite system which is composed of a computer aided design (CAD) system, a CAD auxiliary system and a selective laser cladding machine; the method, by combining an existing dental CAD system and a metal 3D printing technology, can rapidly manufacture the individual metal dental restoration, and a conventional manufacturing mode of an implant and upper structures thereof can be changed; by changing numerical control cutting processing into metal 3D printing processing, a processing efficiency can be greatly improved, and individual manufacturing can be also achieved; when necessary, the two processing modes, namely the metal 3D printing processing and the numerical control cutting aided processing, can be organically combined, so that the processing method can take advantages of the two processing modes, and the perfect combination of metal 3D printing and numerical control cutting is achieved; therefore, the conventional manufacturing mode of the implant and the upper structures thereof is changed.

Description

technical field [0001] The invention belongs to the technical field of oral restorations, and in particular relates to a new CAD / metal 3D automatic processing method for oral restorations. The method combines the existing oral CAD system with metal 3D printing technology to achieve rapid and personalized metal oral cavity manufacturing. Restoration. Background technique [0002] Computer-aided design (CAD) and computer-aided manufacture (CAM) technologies integrate multidisciplinary knowledge and technologies such as mathematics, optics, electronics, computer image recognition and processing, automatic control and automatic processing, etc. It was widely used in industrial automation and aerospace in the 1970s. In 1983, the first dental CAD / CAM system prototype developed by France Duret came out in France; in 1985, at the French International Dental Academic Conference, Professor Duret used this equipment to produce the first posterior porcelain crown and successfully used ...

AI Technical Summary

Problems solved by technology

In 2008 and 2009, Gao Bo of the Fourth Military Medical University of the Chinese People’s Liberation Army published a treatise on laser rapid prototyping for the manufacture of complete dentures with maxillary pure titanium substrates. 133 to 136, and its suitability has been studied, and the clinical test results show that its production accuracy needs to be improved

[0030] 3. Limitation and development direction of traditional CAD / CAM in clinical application

However, there are still the following problems in the clinical application process: At present, CAD / CAM systems are mainly used in the field of fixed restorations, but not used in removable partial dentures and complete dentures. The main reason is the inherent limitations of CAD / CAM systems in machining It not only causes waste of materials, but also makes the types of prosthetics produced single, and composite prosthetics cannot be machined.

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