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Dentistry gradient structure metal porcelain stuff and preparing method thereof

A technology of gradient structure and structural materials, which is applied in the field of oral restoration, and can solve the problems of metal ceramic materials with no gradient structure.

Inactive Publication Date: 2011-04-06
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no research reports on gradient-structured metal-ceramic materials used in dental restorations.

Method used

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  • Dentistry gradient structure metal porcelain stuff and preparing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The first step: the metal nickel, chromium and its oxide powder according to Ni:Cr:NiO:Cr 2 o 3 =40%: 10%: 0%: 50% mass ratio mixed, ground to make it mixed uniformly, as gradient adjustment component.

[0014] Step 2: Weigh 0.15 g of porcelain powder with an average particle size of 2 μm, and coat it on the metal substrate.

[0015] Step 3: Add 0.015 g (accounting for 10% by weight) of gradient adjustment components to 0.135 g of porcelain powder with an average particle size of 2 μm, mix evenly, and coat on the coating described in the second step.

[0016] Step 4: Add 0.03 g (20% by weight) of gradient adjustment components to 0.12 g of porcelain powder with an average particle size of 2 μm, mix evenly, and coat on the coating described in the third step.

[0017] Step 5: Add 0.045 g (accounting for 30% by weight) of gradient adjustment components to 0.105 g of porcelain powder with an average particle size of 2 μm, mix evenly, and coat on the coating described in ...

Embodiment 2

[0027] The first step: the metal nickel, chromium and its oxide powder according to Ni:Cr:NiO:Cr 2 o 3 =25%: 25%: 25%: 25% mass ratio mixing, grinding to make it mix uniformly, as gradient adjustment component.

[0028] Step 2: Weigh 0.15 g of porcelain powder with an average particle size of 2 μm, and coat it on the metal substrate.

[0029] Step 3: Add 0.015 g (accounting for 10% by weight) of gradient adjustment components to 0.135 g of porcelain powder with an average particle size of 2 μm, mix evenly, and coat on the coating described in the second step.

[0030] Step 4: Add 0.03 g (20% by weight) of gradient adjustment components to 0.12 g of porcelain powder with an average particle size of 2 μm, mix evenly, and coat on the coating described in the third step.

[0031] Step 5: Add 0.045 g (accounting for 30% by weight) of gradient adjustment components to 0.105 g of porcelain powder with an average particle size of 2 μm, mix evenly, and coat on the coating described i...

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Abstract

The invention belongs to a field of preparation and application technology of porcelain materials in mouth repairing field, in particular to a preparation method for a grads porcelain material with nickel chrome as a metal floor. A porcelain powder which takes leucite as a main crystalline phase is synthesized and the weight percentage for the components of the powder relates to 66.67 percent of SiO2, 16.57 percent of Al2O3, 12.81 percent of K2O, 2.64 percent of Na2O, and 0.89 percent of others. Grads adjusting components are added in the porcelain powder and the weight percentage of the components relates to 30 to 40 percent of Ni, 10 to 20 percent of Cr, 0 to 10 percent of NiO and 40 to 50 percent of Cr2O3. The porcelain powder added with the grads adjusting components is molded with a layer accumulation method and is agglomerated. The prepared component grads porcelain material is characterized by easing the heat stress between gold and porcelain and improving the intensity, and lays a foundation for the clinic application of mouth porcelain repairing.

Description

technical field [0001] The invention relates to the field of oral restoration, in particular to porcelain tooth restoration using a nickel-chromium alloy as a base. Background technique [0002] Porcelain-fused-to-metal tooth is an oral restoration formed by fusing porcelain powder to an alloy substrate at high temperature. It is a new tooth restoration technology developed in the late 1960s. Metal-ceramic teeth not only have the advantages of high strength and good toughness of metal materials, but also have the characteristics of corrosion resistance and good biocompatibility of ceramic materials. They are currently the most widely used dental restorations in the field of oral restoration. At present, my country's consumption level is still dominated by ordinary nickel-chromium alloy porcelain teeth. Although domestic nickel-chromium alloys have been used in a large number of clinical applications, there are still some defects in domestic porcel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/04
Inventor 尹光福康明廖晓明肖守春黄忠兵康云清姚亚东
Owner SICHUAN UNIV
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