CAD/CAM digital manufacturing method of frame movable denture

Abstract

A CAD / CAM digital manufacturing method for a formwork-type movable denture, comprising the follow steps: 1) obtaining data: scanning a tooth working model to obtain A data required for CAD design; 2) CAD design: CAD designing a formwork structure B, forming A+ data required for the design of teeth and a base, CAD designing a tooth structure C and a base shape, forming A++ data required for the design of a base mold shell, and CAD designing a base mold shell structure D; 3) CAM manufacturing: extracting three types of data such as the formwork structure B, the tooth structure C, the base mold shell structure D for CAM typesetting, CAM cutting, and then lost wax casting to obtain the formwork structure B, CAM cutting to obtain the tooth structure C, and 3D printing to obtain the base mold shell structure D; 4) injection molding; 5) grinding and polishing. The formwork-type movable denture is simple to manufacture, has high precision and short manufacturing cycle, reduces production cost, and improves the quality of the movable denture restoration.

Description

technical field [0001] The invention relates to the technical field of bracket-type removable dentures, in particular to a CAD / CAM digital manufacturing method for bracket-type removable dentures. Background technique [0002] Removable dentures are removable dentures for missing or missing teeth. Those who repair missing dentition refer to complete dentures, and those who repair missing dentition refer to removable partial dentures. [0003] At present, CAD / CAM digital denture manufacturing technology is widely used in the field of oral fixed dentures and implant dentures due to its exquisite design, precise manufacturing and comfortable use. However, due to the lack of dentition and many types of dentition defects, the structure of the removable denture is complex. The removable denture usually includes three components: brackets, teeth or dentures, and bases, and the three components are composed of three different types of materials. Complete with single equipment and ...

AI Technical Summary

Problems solved by technology

Due to the complex production process of removable dentures, cumbersome steps, long production cycle, difficult teeth arrangement, uneven manual production level and large errors, it is difficult to control the quality of removable denture restorations, resulting in the restoration of removable dentures completed by traditional manufacturing techniques. Body weight is generally poor, patients are not satisfied with wearing and using, and high labor production costs also increase the economic burden of patients

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