Ceramic material for false tooth preparation and preparation method thereof

A technology of ceramic materials and dentures, which is applied in the field of ceramic materials and its preparation, can solve problems such as nickel-chromium allergies, and achieve the effect of reducing costs

Inactive Publication Date: 2015-03-04
SUZHOU COSMETIC MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a ceramic material for denture preparation and...

Method used

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  • Ceramic material for false tooth preparation and preparation method thereof

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Embodiment 1

[0020] A ceramic material for denture preparation, comprising the following raw materials in parts by weight: 20 parts of 600-mesh rape straw powder, 4 parts of yttrium oxide, 0.1 part of aluminum oxide, 4 parts of zirconia, 12 parts of 800-mesh ceramic powder, 0.5 parts of polyvinyl alcohol aqueous solution.

[0021] The above-mentioned preparation method of the ceramic material used for denture preparation comprises the following steps:

[0022] Step 1, take straw powder, yttrium oxide, aluminum oxide, zirconia, ceramic powder, and polyvinyl alcohol aqueous solution in parts by weight, and put yttrium oxide, aluminum oxide, zirconia, and ceramic powder into a ball mill and grind for 2 hours to obtain the first mixture;

[0023] Step 2, put the first mixture into the crucible, heat it to 1800°C and keep it warm for 1 hour, add straw powder, then add polyvinyl alcohol aqueous solution, and stir the second mixture at 200rpm;

[0024] Step 3: Pour the second mixture into the m...

Embodiment 2

[0026] A ceramic material for denture preparation, comprising the following raw materials in parts by weight: 36 parts of 600 wheat straw powder, 5 parts of yttrium oxide, 0.2 parts of aluminum oxide, 5 parts of zirconia, 18 parts of 800 mesh ceramic powder, poly 0.8 parts of vinyl alcohol aqueous solution.

[0027] The above-mentioned preparation method of the ceramic material used for denture preparation comprises the following steps:

[0028] Step 1, take straw powder, yttrium oxide, aluminum oxide, zirconia, ceramic powder, and polyvinyl alcohol aqueous solution in parts by weight, and put yttrium oxide, aluminum oxide, zirconia, and ceramic powder into a ball mill and grind for 3 hours to obtain the first mixture;

[0029] Step 2, put the first mixture into the crucible, heat it to 2000°C and keep it warm for 1.5 hours, add straw powder, then add polyvinyl alcohol aqueous solution, and stir the second mixture at 280rpm;

[0030] Step 3: Pour the second mixture into the ...

Embodiment 3

[0032] A ceramic material for denture preparation, comprising the following raw materials in parts by weight: 38 parts of 700-mesh rape straw powder, 7 parts of yttrium oxide, 0.4 parts of aluminum oxide, 7 parts of zirconia, 20 parts of 800-mesh ceramic powder, 1.0 parts of polyvinyl alcohol aqueous solution.

[0033] The above-mentioned preparation method of the ceramic material used for denture preparation comprises the following steps:

[0034] Step 1, take straw powder, yttrium oxide, aluminum oxide, zirconia, ceramic powder, and polyvinyl alcohol aqueous solution in parts by weight, and put yttrium oxide, aluminum oxide, zirconia, and ceramic powder into a ball mill and grind for 4 hours to obtain the first mixture;

[0035] Step 2, put the first mixture into the crucible, heat it to 2200°C and keep it warm for 2 hours, add straw powder, then add polyvinyl alcohol aqueous solution, and stir the second mixture at 300rpm;

[0036] Step 3: Pour the second mixture into the...

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Abstract

The invention discloses a ceramic material for false tooth preparation and a preparation method thereof. The ceramic material is composed of straw powder, yttrium oxide, aluminum oxide, zirconia, ceramic powder and a polyvinyl alcohol water solution. The preparation method comprises the following steps: 1. taking the straw powder, yttrium oxide, aluminum oxide, zirconia, ceramic powder and polyvinyl alcohol water solution in parts by weight, adding the yttrium oxide, aluminum oxide, zirconia and ceramic powder into a ball mill, and milling for 2-5 hours to obtain a first mixture; 2. putting the first mixture into a crucible, heating to 1800-2500 DEG C, keeping the temperature for 1-3 hours, adding the straw powder, adding the polyvinyl alcohol water solution, and stirring to obtain a second mixture; and 3. pouring the second mixture into a mold, and carrying out vacuum drying for 1-4 hours. The ceramic material has the advantages of wear resistance, acid/alkali resistance, high hardness and low preparation cost.

Description

technical field [0001] The invention relates to a material for dentures, in particular to a ceramic material for dentures and a preparation method thereof. Background technique [0002] The development of oral restoration is inseparable from the development of oral materials and techniques. Denture restoration materials mainly include ceramics, resins and metal materials. Now clinically, nickel-chromium alloy materials are often used to make dentures, but many heavy metals are harmful to the human body in the oral cavity for a long time, and some people are allergic to nickel, which is even more harmful to health. Traditional glass-ceramic and alumina-based ceramic materials are not strong enough and brittle, easy to break, which limits their application in oral restorations. [0003] With the rapid development of current oral restorative technology, all-ceramic materials have become the most widely used dental materials due to their good biocompatibility, corrosion resist...

Claims

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Application Information

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IPC IPC(8): C04B35/52C04B35/505C04B35/48C04B35/622
Inventor 金仲恩全春兰张帆
Owner SUZHOU COSMETIC MATERIALS
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