Integral complete denture digital manufacturing system and method

Abstract

The invention relates to an integral complete denture digital manufacturing system. The system comprises a processing unit, a 3D printing device, a high-temperature high-pressure combining device anda numerical control machine tool; the processing unit is used for obtaining a complete denture three-dimensional data STL file, performing computerized numerical control (CNC) cutter path calculationon a tooth cavity side according to the complete denture three-dimensional data STL file, and generating a complete denture cavity box STL file with a repeated positioning accessory; the 3D printing device is used for printing a complete denture cavity box according to the complete denture cavity box STL file with the repeated positioning accessory; the high-temperature high-pressure combining device is used for combining a finished denture object and denture glue placed into the complete denture cavity box to obtain a complete denture semi-finished blank; and the numerical control machine tool is used for carrying out numerical control processing on the tooth cavity side according to the numerical control CNC tool path calculation result of the tooth cavity side to obtain an integral complete denture. According to the invention, existing medically certified complete denture materials are used, the materials mainly comprise denture powder, denture water and finished teeth, and the integral complete denture is manufactured without adopting any new material.

Description

technical field [0001] The invention relates to the technical field of denture production, in particular to an integral complete denture digital production system and method. Background technique [0002] With the continuous penetration of computer-aided design (CAD), computer-aided manufacturing technology (CAM), 3D printing rapid prototyping technology (3D PRINT) and numerical control cutting technology (CNC) in denture processing, the CAD software design technology of complete dentures is now Already very mature, such as Danish 3shape, Canadian Dentwings, German Exocad, etc. have complete denture software design modules. [0003] After the complete denture is designed by CAD, the STL three-dimensional file of the complete denture is obtained, but how to produce this three-dimensional data file has become a major research hotspot in digital dentistry in recent years. Different scientific research teams at home and abroad are working hard to study the digital manufacturing...

AI Technical Summary

Problems solved by technology

[0005] The prior art solutions above have the following defects: the complete denture manufactured by method one and method two is a detachable complete denture due to the need for adhesive bonding, and has the following problems: 1. The tooth body is easy to fall off, 2. Due to the need for adhesive bonding, there is a bonding gap, and the bonding gap is likely to affect the position of the complete denture tooth in the gingival color-based tray, resulting in displacement errors. 3. The patient's oral environment is ineffective for the adhesive complete denture loss

Method 3 is an integral complete denture with good stability, but the digital 3D printed complete denture materials currently on the market have not been verified in the long-term clinical oral environment, and their strength, biocompatibility, and material stability have yet to be confirmed. The test of time; in addition, the color of 3D printed or CNC cut teeth is not beautiful, the strength is insufficient, and the cost is high

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