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Preparation method of dental titanium porcelain powder with series color matching

A technology of porcelain powder and porcelain powder, applied in dental preparations, dentistry, dental prostheses, etc., can solve the problems of discoloration, unpublished production technology, and broken porcelain, achieve realistic and beautiful color, improve bonding strength, and reduce porcelain porcelain effect of temperature

Inactive Publication Date: 2011-12-14
FOURTH MILITARY MEDICAL UNIVERSITY
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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

Method used

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  • Preparation method of dental titanium porcelain powder with series color matching
  • Preparation method of dental titanium porcelain powder with series color matching
  • Preparation method of dental titanium porcelain powder with series color matching

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Embodiment Construction

[0019] Preparation method of opaque porcelain powder:

[0020] (1) Calculate and weigh according to the formula of opaque porcelain powder in Table 1, and record the ingredients of opaque porcelain powder as opaque 1 to opaque 6, and mix and ball mill them respectively 0 hours; the component SnO 2 Set aside separately and do not participate in mixed ball milling; where component B 2 o 3 Introduced with boric acid, component Na 2 O, K 2 O. Li 2 O and BaO are introduced with corresponding carbonates, and component F is introduced with corresponding fluorides.

[0021] (2) Put the mixed material after each ball mill into the crucible, at T 1 ℃ melting, heat preservation t 1 Hours, the molten glass is poured into water to quench it.

[0022] (3) wet ball milling of the quenched solid after water quenching 2 hours; after drying, an intermediate powder of opaque porcelain is obtained.

[0023] (4) Add the SnO that was not involved in the mixing and ball milling in step (1)...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/02C04B35/626C04B35/14
Inventor 郭天文杨建锋郭立童尚海燕吴海涛何增英高积强
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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