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Zirconia ceramic slurry for manufacturing false tooth as well as preparation method and application thereof

A zirconia ceramic and slurry technology, applied in the field of zirconia denture ceramic materials and ceramic denture crowns, can solve very few problems

Active Publication Date: 2016-05-11
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These are mainly in the traditional processing field, focusing on improving the mechanical properties, aesthetic properties and processing convenience of dentures on the basis of satisfying biocompatibility and physical and chemical properties. There is still little research on materials, especially the research on printing materials suitable for microfluidic extrusion rapid prototyping to make zirconia ceramic dentures has not been reported.

Method used

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  • Zirconia ceramic slurry for manufacturing false tooth as well as preparation method and application thereof
  • Zirconia ceramic slurry for manufacturing false tooth as well as preparation method and application thereof
  • Zirconia ceramic slurry for manufacturing false tooth as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] According to the present invention, the ceramic material used for micro-fluid extrusion molding to make dentures, the mass percentage of solid raw materials used is:

[0038] 2.4% magnesium oxide, 4.8% zinc oxide, 4.8% silicon oxide, 8% carrageenan, 3Y-ZrO with a particle size of 50-80 nanometers 2 80%.

[0039] The model of the silane coupling agent in the mixed solvent is KH570, the lubricant is glycerol, and the pH regulator is glacial acetic acid. The bonding agent is magnesium oxide, the toughening agent is zinc oxide, the binder is silicon dioxide and carrageenan, and the dental matrix material is 3Y-ZrO with a particle size of 50-80 nanometers. 2 .

[0040] The preparation process is to mix and ball-mill 0.6g of magnesium oxide, 1.2g of zinc oxide, 1.2g of silicon oxide, and 2g of carrageenan for 8 hours in the early stage, and then mix 5g of the obtained mixed powder with a particle size of 50-80 nanometers 3Y-ZrO 220g mixed, high energy ball milled for 20 ho...

Embodiment 2

[0044] According to the present invention, the ceramic material used for micro-flow extrusion molding to make dentures, the mass percentage of raw materials used is:

[0045] 4.7% magnesium oxide, 4.7% zinc oxide, 4.7% silicon dioxide, 7.8% carrageenan, 3Y-ZrO with a particle size of 50-80 nanometers 2 78.1%.

[0046] The preparation process is to mix and ball-mill 1.2g of magnesium oxide, 1.2g of zinc oxide, 1.2g of silicon oxide and 2g of carrageenan for 8 hours in the early stage, and then mix 5.6g of the obtained mixed powder with a particle size of 50-80 nanometers 3Y-ZrO 2 20g mixed, high energy ball milled for 20 hours, fully mixed evenly. Then the mixed solid powder 25.6g was mixed with 270ml of mixed solvent, and stirred on a magnetic stirrer for 5 hours, finally added 4ml of lubricant and 28ml of pH value regulator to adjust the pH value to 4.2, and the solid content was obtained by vacuum filtration. 50% ceramic slurry. The slurry is a ceramic slurry with high so...

Embodiment 3

[0049] According to the present invention, the ceramic material used for micro-flow extrusion molding to make dentures, the mass percentage of raw materials used is:

[0050] 2.2% magnesium oxide, 4.4% zinc oxide, 4.4% silicon oxide, 14.8% carrageenan, 3Y-ZrO with a particle size of 50-80 nanometers 2 74.1%.

[0051] The preparation process is to mix and ball-mill 0.6g of magnesium oxide, 1.2g of zinc oxide, 1.2g of silicon oxide and 4g of carrageenan for 8 hours in the early stage, and then mix 7g of the obtained mixed powder with a particle size of 50-80 nanometers 3Y-ZrO 2 20g mixed, high energy ball milled for 20 hours, fully mixed evenly. Then 27g of the mixed solid powder was mixed with 270ml of mixed solvent, and stirred on a magnetic stirrer for 5 hours, and finally 4ml of lubricant and 34ml of pH regulator were added to adjust the pH to 4.0, and the solid content was obtained by vacuum filtration. % ceramic slurry. The slurry is a ceramic slurry with high solid pha...

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Abstract

The invention relates to zirconia ceramic slurry for manufacturing a false tooth as well as a preparation method and application thereof. The slurry consists of solid raw materials, mixed solvents, lubricating agents and pH regulators, wherein the solid raw materials consist of the following ingredients in percentage by mass: 2 to 5 percent of bonding aiding agents, 2 to 10 percent of tougheners, 4 to 20 percent of bonding agents and 70 to 90 percent of dental base body materials; the bonding aiding agents are magnesium oxide; the toughening agents are zinc oxides; the zinc oxides are ultra-fine zinc oxide powder with the particle diameter being smaller than 1 micrometers. The bonding agents are carrageenin or a mixture of silicon dioxide and the carrageenin. The hardness of a manufactured false tooth is between 1000 and 1300HV; the defects of high porosity and low hardness due to free accumulation of the current process are overcome.

Description

Technical field: [0001] The invention belongs to the field of printing material research of rapid prototyping technology, and relates to a zirconia denture ceramic material, which is used for making ceramic denture crowns by a micro-flow extrusion forming process. Background technique: [0002] With the improvement of living conditions, people's awareness of dental health has increased, and they have higher requirements for the appearance of teeth. Dental restoration is currently the only way to solve these problems. [0003] Bioceramic materials are known as "future materials" because of their excellent performance. In the field of oral restoration, ceramic materials have become a The first choice for restorative materials. Commonly used in the production of metal-ceramic restorations and all-ceramic restorations. Metal-ceramic restorations effectively combine the strength of metals with the aesthetics of ceramics, but metals are prone to corrosion in the oral environment...

Claims

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Application Information

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IPC IPC(8): C04B35/488C04B35/626C04B35/636B28B1/00A61K6/02A61K6/097A61K6/898
CPCA61K6/818B28B1/001C04B35/488C04B35/6261C04B35/62635C04B35/636C04B2235/3206C04B2235/3225C04B2235/3284C04B2235/3418C04B2235/5454C04B2235/661C04B2235/96
Inventor 周婧段国林
Owner HEBEI UNIV OF TECH
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