The Glazing Method of Metal Porcelain Dentures

Abstract

The invention discloses a method for glazing a porcelain-fused-to-metal false tooth. The method comprises the following steps: spraying and washing a false tooth germ body with steam; performing brush dyeing by dyeing porcelain, and gradually dyeing developmental grooves of a rear tooth from light to deep according to a sequence of auxiliary groove-main groove-fossa; brushing glaze water to a lingual side and a lip side of the false tooth germ body as well as a 3 / 5 area, close to a cut end, of an occlusal surface of the rear tooth, and not brushing the glaze water to a 1 / 3 area, close to a central groove, of the rear tooth; selecting the dyeing porcelain for gradual brush dyeing from deep to light according to color comparison of a colorimetric plate and the color of a genuine tooth; preheating and baking in a furnace. According to the method, pre-dyeing is gradually performed from light to deep by the dyeing porcelain and then the glaze water is brushed to obtain a glaze layer with balanced color and luster; dyeing is performed from deep to light after color comparison, so that the glaze layer brushed on the surface of the false tooth germ body forms color and luster matched with those of the genuine tooth; due to the adoption of multi-time brushing in a specific direction, the color and luster balance degree of the glaze layer is increased and the appearance quality of a product is improved.

Description

technical field [0001] The invention relates to the technical field of oral cavity fixed restorations, in particular to a method for glazing metal ceramic dentures. Background technique [0002] Oral fixed restoration is a kind of denture method applied to the restoration of missing teeth. At present, more and more metal-ceramic dentures are used clinically when repairing missing teeth. Porcelain-fused-to-metal denture is a restoration made of porcelain powder sintered at high temperature and fused to the surface of the metal inner crown. It has the advantages of good mechanical strength of cast metal and beautiful appearance of all-ceramic denture. It is an ideal restoration. [0003] In order to make metal-ceramic dentures match the color and luster of real teeth, after molding the porcelain body, it is necessary to glaze the surface of the porcelain body. Due to the large surface area of ​​the back teeth, the overall table shape, and the structure of the tooth socket, t...

AI Technical Summary

Problems solved by technology

Due to the large surface area of ​​the back teeth, which are generally platform-shaped and have a structure such as a tooth socket, the traditional glazing process may easily lead to uneven color or color difference of the glaze layer, which will affect the appearance quality of the metal porcelain denture and reduce the user experience.