A cad/cam/3d automatic processing method for dental restorations

Abstract

The invention relates to an automatic CAD / CAM / 3D processing method of dental prostheses. The method comprises the step of processing dental prostheses by employing a composite system composed of an optical scanner and a computer aided design system, a CAD / CAM aided system, a selective laser cladding machine and a numerical control cutting machine tool, wherein prostheses such as removable partial dentures, fixed dentures, complete dentures and implant dentures can be rapidly manufactured. The method is characterized in that numerical control cutting (subtractive manufacturing called as subtraction) and the 3D printing technology (additive manufacturing called as addition) are organically combined and highly unified. Two aspects of the unity and opposites are merged into one uniform aspect; the automatic production efficiency of the dental prostheses, especially complex prostheses, can be greatly improved, complicated procedures of a conventional handmade dental prosthesis are eliminated, the manufacturing quality and stability of the prostheses are improved, the purposes of quickness, accuracy and individualized manufacturing are achieved, and the dental prostheses meet the urgent demands of most agomphosis patients.

Description

technical field [0001] The invention belongs to the technical field of oral restorations, and in particular relates to a brand-new CAD / CAM / 3D automatic processing method for oral restorations. Long, organically combining their respective CNC processing methods, the effect can be brought to the extreme, and it can realize the production of fast, accurate and personalized oral restorations. 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 posterio...

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

[0031] 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 in removable partial dentures and complete dentures. The main reason is the inherent limitations of CAD / CAM systems in cutting. It not only causes a waste of materials, but also makes the types of prosthetics produced single, and composite prosthetics cannot be machined.

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