Preparation method of dental titanium porcelain powder with series color matching

Abstract

The invention discloses a preparation method of a series of color-matched dental titanium porcelain powders, including color-matching of opaque porcelain powders and body-porcelain powders. At least three kinds of ceramic pigments vanadium zirconium yellow, praseodymium zirconium yellow, iron zirconium red and nickel chromium gray; the color matching of the body porcelain powder is based on the mass base of the body porcelain powder, and commercial ceramic pigments vanadium zirconium yellow and praseodymium zirconium are added At least two kinds of yellow, iron zirconium red, iron chrome yellow and nickel chrome gray; the opaque porcelain powder and body porcelain powder after adding color materials are ball milled for 20-30 hours respectively; the opaque porcelain powder and body porcelain powder after ball milling are dried Afterwards, they are bottled separately to prepare for ceramics on the surface of pure titanium substrates. In the present invention, the opaque porcelain powder and the body porcelain powder are prepared according to the current general vita porcelain color card standard, and the colored porcelain powders of 16 colors in four series A, B, C, and D can be respectively selected according to different colors of natural teeth. , to achieve a realistic and beautiful effect.

Description

technical field [0001] The invention relates to a preparation method of biological materials, in particular to a preparation method of dental titanium ceramic powder for a series of color matching to meet the requirements of different patients and different colors. Background technique [0002] Porcelain-fused-metal (PFM) crowns have been widely used clinically, but gold alloy-based PFM crowns are expensive and difficult to popularize; nickel-chromium alloys often have potential toxicity such as allergies and gingival black lines. Internationally banned. In contrast, pure titanium has excellent biocompatibility, is safe to use, and is cheap. The research on titanium-ceramic crowns is an urgently needed and promising project. [0003] Domestic literature [Journal of Practical Stomatology, 1996, 12 (4): 275-278.] has developed a special ceramic powder for titanium materials, but the ceramic powder developed by it only contains two kinds of powders, opaque porcelain and body p...

AI Technical Summary

Problems solved by technology

[0004] At present, the titanium ceramic powder produced by relevant foreign companies is composed of bonded porcelain, opaque porcelain and body porcelain, and the color of the teeth of different patients is considered. The main representatives are VITATITANKERAMIK (VITA company, Germany), TiBond (Dentsply company, the United States) ), Surper porcelain (NORITAKE company, Japan), but the relevant production technology has not been announced, and there are problems of porcelain collapse and slight discoloration after clinical use

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