Removable denture laser processing device and processing method thereof

Abstract

The invention discloses a removable denture laser processing device. The removable denture laser processing device comprises a laser device, a workpiece clamping and moving device and a computer 2. The laser device comprises a laser 1, a reflecting mirror 7 and a focusing lens 8, and light emitted by the laser is reflected by the reflecting mirror 7 and then focused by the focusing lens 8. The clamping and moving device comprises a single-shaft direct-driven rotating table 3, a worktable 4, a four-jaw chuck 5 and a workpiece fixture 6, wherein the four-jaw chuck 5 is connected with the single-shaft direct-driven rotating table 3 fixed on the worktable 4, and the workpiece fixture 6 is fixed on the four-jaw chuck 5. The computer 2 is in signal connection with the laser 1, the single-shaft direct-driven rotating table 3 and the worktable 4. The removable denture laser processing device has the advantages of high cutting speed, high efficiency, low cost, smooth cutting face, no burr, no contact with processed workpieces, no pollution to the workpieces, avoidance of causing mechanical squeezing or mechanical stress to materials and little material deformation.

Description

technical field [0001] The invention relates to the technical field of dentistry, in particular to a laser processing device for removable dentures and a processing method thereof. Background technique [0002] As we all know, the production of dentures is a traditional manual restoration technology. It not only requires dental technicians to have rich dental clinical expertise, but also requires more professional manual operation skills. Due to the complicated and time-consuming steps of traditional manual restoration technology Long, so it is easy to produce various problems such as occlusal deformation. In recent years, with the application of CAD / CAM technology in the field of dental restoration, the application of injection molding technology, CNC engraving technology, and 3D printing technology in the field of denture restoration has been promoted. Compared with traditional manual restoration technology, these emerging processing technologies Its simple, efficient, an...

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Problems solved by technology

[0003] The injection molding process involves many factors such as mold design, mold manufacturing, raw material characteristics and raw material pretreatment methods, molding technology, injection molding machine operation, etc., and is related to seasonal climate, processing environment temperature and humidity, product cooling time, and post-processing technology. Closely related, under the constraints of so many composite factors, the occurrence of defects in injection molded products is inevitable, so it is difficult for injection molding technology to be widely promoted and used in the field of dental restoration

[0004] With the development of CAD / CAM technology, CNC engraving technology is becoming more and more stable, and has become the most widely used processing technology in the field of CAD / CAM repair denture production, but there are also defects such as low processing efficiency, high processing cost, and uncertain processing accuracy. For example, the time for designing and processing a complete denture using CNC engraving technology is roughly the same as the time for a technician to manually make a complete denture, but the equipment and tools required for processing are expensive, and the processing process is random. With the wear and tear of the tool, there is also a certain difference in the machining accuracy before and after, which directly affects the price and quality of the finished denture product, and has affected the widespread use of CNC engraving technology in the field of dental restoration.

[0005] 3D printing technology is an emerging industrial technology in recent years. It has high processing efficiency and low processing cost. However, due to the limitation of printing materials, the artificial teeth produced have poor biocompatibility, low wear resistance, poor stain resistance, and impact resistance. Low strength, etc., has not been clinically applied so far

[0013] Therefore, if laser processing technology can be applied to the field of denture restoration, it can solve the disadvantages of injection molding technology limited by many factors, solve the disadvantages of low efficiency, high cost and inconsistent processing accuracy of CNC engraving, and solve the disadvantages of 3D printing technology. Limited by the unfavorable printing materials, the application of CAD / CAM technology in the field of denture restoration has undergone earth-shaking changes

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