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A kind of nano-porcelain denture and its manufacturing method

A manufacturing method, nanotechnology, applied in the medical and health field, can solve the problems of low element stability, complex processing technology, and low bonding strength, and achieve the effects of strong corrosion resistance, high yield strength, and high tensile strength

Active Publication Date: 2020-08-07
珠海新茂义齿科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the above-mentioned problems of titanium-based porcelain teeth, the solutions of the prior art make the processing technology complicated, and the stability of the elements is not high, and the cost is high. The shortcomings of collapse porcelain are still unresolved

Method used

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  • A kind of nano-porcelain denture and its manufacturing method
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  • A kind of nano-porcelain denture and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Fabrication of Metal Substrates:

[0036] Take the metal powder according to the mass percentage, add it into the ball mill for ball milling and mixing according to the principle of equal increase, and obtain the mixture I; the mixture I and the binder are ball milled and mixed at a mass ratio of 40:1 to obtain a homogeneous slurry; the slurry is ultrasonicated for 10 minutes Defoaming; inject the slurry into the prepared disappearing mold, and let it stand for 20 hours to obtain the green body; the green body is obtained by sintering the green body at 1150° C. for 13 minutes. Wherein, the binder is composed of polyethylene, polybutadiene and stearic acid with a mass ratio of 1:1:2.

[0037] Table 1 Elemental composition of the metal substrate

[0038]

[0039] Table 2 performance test result table

[0040]

[0041] Remarks: Corrosion resistance test is artificial saliva corrosion weight loss test.

Embodiment 2

[0043] Metal base material, Zr 8.0%, Mn10.0%, Mo 7.0%, Nb 5.0%, Fe 1.5%, Si 2.5%, Cu3.0%, Ti63.0%; manufacturing method 1:

[0044] Take the metal powder according to the mass percentage, add it into the ball mill for ball milling and mixing according to the principle of equal increase, and obtain the mixture I; the mixture I and the binder are ball milled and mixed at a mass ratio of 40:1 to obtain a homogeneous slurry; the slurry is ultrasonicated for 10 minutes Defoaming; inject the slurry into the prepared disappearing mold, and let it stand for 20 hours to obtain the green body; the green body is obtained by sintering the green body at 1150° C. for 13 minutes. Wherein, the binder is composed of polyethylene, polybutadiene and stearic acid with a mass ratio of 1:1:2.

[0045] Comparison method 1:

[0046] Change the sintering temperature in manufacturing method 1 to 1000°C

[0047] Comparison method 2:

[0048] Change the sintering temperature in manufacturing method 1 ...

Embodiment 3

[0058] Manufacture of porcelain powder:

[0059] Take nano-leucite and nano-hydroxyapatite ball mill and mix for 5 minutes according to mass percentage, then add nano-zirconia, nano-titanium dioxide, nano-silica and ball-mill for 25 minutes to obtain mixture I; add absolute ethanol to mixture I and continue ball milling for 10 minutes , the mass ratio of mixture I to absolute ethanol is 40:11 to obtain mixture II; the mixture II is calcined and cooled naturally to obtain ceramic powder. Wherein, the calcination temperature is 950° C., and the time is 1.5 h.

[0060] The composition of table 1 ceramic powder

[0061]

[0062] Table 2 performance test result table

[0063]

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Abstract

The invention belongs to the field of medical health, and particularly relates to a nanometer porcelain denture and a manufacturing method thereof, wherein the nanometer porcelain denture comprises ametal substrate and porcelain powder, the metal substrate comprises Zr, Mn, Mo, Nb, Fe, Si, Cu and Ti, and the porcelain powder comprises nanometer zirconia, nanometer titanium dioxide, nanometer hydroxyapatite, nanometer leucite and nanometer silica. According to the present invention, the process conditions of the manufacturing method are simple and easy to control, and the manufactured porcelain teeth have advantages of good stability, high safety and strong bonding force between gold and porcelain, and further integrate biocompatibility, mechanical compatibility and physical stability.

Description

technical field [0001] The invention belongs to the medical and health field, and in particular relates to a nano-porcelain denture and a manufacturing method thereof. Background technique [0002] Tooth defect is a common oral trauma, which not only affects people's health but also affects their appearance. The development of metal-ceramic teeth has become one of the important ways to solve the problem of tooth defect. Metal-ceramic teeth are oral restorations formed by fusing porcelain powder on an alloy base through high temperature. The alloys for making porcelain teeth must meet the following conditions: (1) good biocompatibility, non-toxic and harmless to the human body; (2) stable chemical properties, must have excellent oxidation resistance and corrosion resistance; (3) The physical properties are stable and must have high strength. Porcelain powder is a glaze material coated on a metal base. The glaze material is melted by high-temperature calcination to form a co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C13/083A61K6/827A61K6/818A61K6/816A61K6/829A61K6/84
CPCA61C13/0835A61K6/816A61K6/818A61K6/827A61K6/829A61K6/84
Inventor 汪浩陈良星梁鹏伟谢金龙
Owner 珠海新茂义齿科技有限公司
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