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High-strength high-toughness dental restorative material

A dental restoration material, high-strength and high-toughness technology, used in dentistry, dental preparations, dental prostheses, etc., can solve problems such as affecting the service life of dental restorations, poor fracture toughness, and low flexural strength.

Inactive Publication Date: 2018-03-16
桂林市漓江机电制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both zirconia ceramic restorations and other ceramic restorations have the problems of low flexural strength and poor fracture toughness, which affect the service life of dental restorations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A high-strength and high-toughness tooth restoration material, comprising the following components by weight: 120 parts by weight of zirconia powder, 1 part by weight of nano indium oxide powder, 1.5 parts by weight of silicon carbide powder, 0.5 parts by weight of barium silicide powder, and polyethylene shrink 3 parts by weight of butyraldehyde, 40 parts by weight of lanthanum trioxide, and 2 parts by weight of ceria.

[0020] A preparation method of high-strength and high-toughness tooth restoration material includes the following steps:

[0021] 1) Weigh the raw materials according to the ratio of raw materials other than polyvinyl butyral, ball mill and mix for 3-5 hours to obtain mixed powder;

[0022] 2) Put the mixed powder into a vacuum sintering furnace, sintering under vacuum conditions, first heat the vacuum sintering furnace to 800-850°C for 1-2h, then to 1250-1300°C for 1-2h to obtain Sintering material

[0023] 3) After crushing the sintered material, ball milli...

Embodiment 2

[0026] A high-strength and high-toughness tooth restoration material, comprising the following components by weight: 160 parts by weight of zirconia powder, 3 parts by weight of nano indium oxide powder, 3.5 parts by weight of silicon carbide powder, 2 parts by weight of barium silicide powder, and polyethylene shrink 8 parts by weight of butyraldehyde, 50 parts by weight of lanthanum trioxide, and 4 parts by weight of cerium oxide.

[0027] A preparation method of high-strength and high-toughness tooth restoration material includes the following steps:

[0028] 1) Weigh the raw materials according to the ratio of raw materials except polyvinyl butyral, and mix them by ball milling for 3-5 hours to obtain mixed powder;

[0029] 2) Put the mixed powder into a vacuum sintering furnace, sintering under vacuum conditions, first heat the vacuum sintering furnace to 800-850°C for 1-2h, and then to 1250-1300°C for 1-2h to obtain Sintering material

[0030] 3) Crush the sintered material and...

Embodiment 3

[0033] A high-strength and high-toughness tooth restoration material, comprising the following components by weight: 140 parts by weight of zirconia powder, 2.3 parts by weight of nano indium oxide powder, 2.8 parts by weight of silicon carbide powder, 1.6 parts by weight of barium silicide powder, and polyethylene shrinkage 5.5 parts by weight of butyraldehyde, 46 parts by weight of lanthanum trioxide, and 2.6 parts by weight of cerium oxide.

[0034] A preparation method of high-strength and high-toughness tooth restoration material includes the following steps:

[0035] 1) Weigh the raw materials according to the ratio of raw materials except polyvinyl butyral, and mix them by ball milling for 3-5 hours to obtain mixed powder;

[0036] 2) Put the mixed powder into a vacuum sintering furnace, sintering under vacuum conditions, first heat the vacuum sintering furnace to 800-850°C for 1-2h, and then to 1250-1300°C for 1-2h to obtain Sintering material

[0037] 3) Crush the sintered m...

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PUM

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Abstract

A high-strength high-toughness dental restorative material is made from, by weight, 120-160 parts of zirconia powder, 1-3 parts of nano indium oxide powder, 1.5-3.5 parts of silicon carbide powder, 0.5-2 parts of barium silicide, 3-8 parts of polyvinyl butyral, 40-50 parts of lanthanum oxide and 2-4 parts of cerium oxide. The high-strength high-toughness dental restorative material is provided based on the prior art.

Description

Technical field [0001] The invention relates to the field of materials, in particular to a high-strength and high-toughness tooth restoration material. Background technique [0002] All-ceramic dental restorations have been widely used in the field of dental restorations, such as feldspar ceramic dental restorations, mica glass ceramic dental restorations, glass infiltrated alumina ceramic dental restorations and glass infiltrated zirconia ceramic dental restorations. In these dental restorations, zirconia ceramics have no irritation and no allergic reaction to the gums, avoiding the allergy, irritation, corrosion and other adverse reactions caused by metals in the oral cavity, which can greatly meet the requirements of dental restoration aesthetics. The repair field is widely used. However, both zirconia ceramic restorations and other ceramic restorations have the problems of low bending strength and poor fracture toughness, which affect the service life of dental restorations....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/04C04B18/02A61K6/02A61K6/083
CPCA61K6/802A61K6/818A61K6/887C04B18/023C04B26/04C04B2111/00836C04B2201/50C04B14/306C04B14/30C04B14/324C04B14/32C08L29/14
Inventor 方杰敏
Owner 桂林市漓江机电制造有限公司