Denture manufacturing process

Abstract

The invention discloses a denture manufacturing process, wherein the technological process of the denture manufacturing process comprises the following steps: step 1, acquisition of model data; step 2, designing of a denture male die: adjusting the form of the denture male die; step 3, printing of the denture male die: printing by light curing; step 4, removing of a support body and casting line planting; step 5, embedding: completely embedding the denture male die in an embedding material, and then introducing into an embedding ring; step 6, sintering: when the embedding material in the embedding ring is solidified and cooled, putting into a high-temperature sintering furnace, and sintering to form a cavity and a filling hole; step 7, centrifugal forming; and step 8, demoulding: taking out the sintered embedding material, and when the temperature drops to normal temperature, smashing the embedding material to obtain the metal denture finished product. Light-curable 3D printing treatment is performed with software and a Realmaker Halo+3D printer, the denture bridge male die part is subjected to cavity treatment, a female die cannot be expanded and extruded, and occurrence of the cracking of the female die can be almost completely eradicated in the subsequent embedding process.

Description

technical field [0001] The invention relates to the technical field of oral denture manufacturing, in particular to a denture manufacturing process. Background technique [0002] Nowadays, the denture industry usually uses organic polymers as materials, and uses Realmaker Halo+3D printers to print light-cured 3D denture positive models. This material replaces traditional waxy crowns, brackets, porcelain veneers and other positive models. After curing and molding, the lost wax casting process of the denture is carried out. However, compared with traditional waxy materials, organic high molecular polymers cannot melt and flow out of the female mold during the heating process, and will only burn after reaching its ignition point, while the female mold material used in the dental industry is generally phosphoric acid Salt, during the heating process of lost wax casting, the organic high molecular polymer will be heated and expanded before burning, and its expansion coefficient ...

AI Technical Summary

Problems solved by technology

However, compared with traditional waxy materials, organic high molecular polymers cannot melt and flow out of the female mold during the heating process, and will only burn after reaching its ignition point, while the female mold material used in the dental industry is generally phosphoric acid Salt, during the heating process of lost wax casting, the organic high molecular polymer will be heated and expanded before burning, and its expansion coefficient is higher than that of phosphate, which can easily cause the female mold to crack (commonly known as crack ring) during the heating process, resulting in the finished product The flash defects in the mold make the whole casting process fail, the higher the content of local organic polymers, the higher the probability of the female mold cracking

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