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Ceramic material used for mouth rehabilitation and preparation method thereof

A ceramic material and dental restoration technology, applied in dental preparations, pharmaceutical formulations, dental prostheses, etc., can solve the problems of easy rupture, poor wear resistance, easy to loose, etc., to improve the clinical success rate and broad application prospects. Effect

Inactive Publication Date: 2016-08-31
王泽陆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Oral restoration materials are commonly used ceramic materials and resin materials, among which resin materials have little wear on natural teeth, but their wear resistance is poor, and they are prone to loosening; although ceramic materials have good wear resistance, aging resistance and corrosion resistance , but the ceramic material itself is hard and brittle, and is prone to cracking. Therefore, it is necessary to improve and optimize the performance of ceramic materials for dental restoration to reduce the risk of clinical failure and achieve better application requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A ceramic material for oral restoration described in this example is prepared from the following components in parts by weight: 20 parts of zirconia, 42 parts of nano-alumina, 15 parts of niobium pentoxide, and 12 parts of rare earth oxide , 8 parts of rectorite, 7 parts of dimolybdenum boride, 5 parts of aluminum borate, 4 parts of silicon-calcium-magnesium whiskers, and 6 parts of fluorapatite;

[0024] The rare earth oxide includes Ta 2 o 5 .

[0025] The preparation method of the ceramic material used for dental restoration described in this embodiment comprises the following steps:

[0026] (1) Dosing and mixing according to the above weight parts;

[0027] (2) Put the mixed material into a ball mill tank for wet ball milling for 8 hours, after drying and passing through a 150-mesh sieve, put it into a graphite mold and mold it under a pressure of 15MPa to obtain a green body;

[0028] (3) Hot pressing and sintering the above green body in a nitrogen atmosphere...

Embodiment 2

[0031] A ceramic material for oral restoration described in this example is prepared from the following components in parts by weight: 32 parts of zirconia, 60 parts of nano-alumina, 30 parts of niobium pentoxide, and 25 parts of rare earth oxide , 15 parts of rectorite, 16 parts of dimolybdenum boride, 10 parts of aluminum borate, 11 parts of silicon-calcium-magnesium whiskers, and 15 parts of fluorapatite;

[0032] The rare earth oxide includes Ta 2 o 5 and La 2 o 3 , and the corresponding weight ratio is 3:2.

[0033] The preparation method of the ceramic material used for dental restoration described in this embodiment comprises the following steps:

[0034] (1) Dosing and mixing according to the above weight parts;

[0035] (2) Put the mixed material into a ball mill tank for wet ball milling for 20 hours, after drying and passing through a 150-mesh sieve, put it into a graphite mold and mold it under a pressure of 40MPa to obtain a green body;

[0036] (3) Hot pre...

Embodiment 3

[0039] A ceramic material for oral restoration described in this example is prepared from the following components in parts by weight: 26 parts of zirconia, 51 parts of nano-alumina, 22 parts of niobium pentoxide, and 18 parts of rare earth oxide , 12 parts of rectorite, 12 parts of dimolybdenum boride, 7 parts of aluminum borate, 7 parts of silicon-calcium-magnesium whiskers, and 10 parts of fluorapatite;

[0040] The rare earth oxide includes Ta 2 o 5 , La 2 o 3 and NdF 3 , and the corresponding weight ratio is .

[0041] The preparation method of the ceramic material used for dental restoration described in this embodiment comprises the following steps:

[0042] (1) Dosing and mixing according to the above weight parts;

[0043] (2) Put the mixed material into a ball mill tank for wet ball milling for 14 hours, after drying and passing through a 150-mesh sieve, put it into a graphite mold and mold it under a pressure of 27MPa to obtain a green body;

[0044] (3) Hot...

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Abstract

The invention discloses a ceramic material used for mouth rehabilitation. The ceramic material is prepared from the following components in parts by weight: zirconia, nanometer aluminum oxide, niobium pentoxide, rare earth oxide, rectorite, molybdenum boride, aluminium borate, calcium-magnesium silicate whisker and fluorapatite. The invention also discloses a preparation method of the ceramic material used for the mouth rehabilitation. The Vickers hardness of the ceramic material used for the mouth rehabilitation exceeds 21.4GPa, the bending strength of the ceramic material exceeds 963.2MPa, and the breaking tenacity of the ceramic material is higher than 16.3MPa.m1 / 2. The defect of the traditional ceramic material that the traditional ceramic material is likely to be subjected to brittle failure since the traditional ceramic material is crisp is eliminated, a clinic success rate is improved, and the ceramic material can be used as a mouth rehabilitation material and has a wide application prospect.

Description

technical field [0001] The invention belongs to the field of ceramic materials, and in particular relates to a ceramic material for oral restoration and a preparation method thereof. Background technique [0002] Bioceramics refers to a class of ceramic materials with specific biological or physiological functions. Due to the advantages of good biocompatibility, affinity with biological tissues, corrosion resistance, sterilization and physical and chemical stability, bioceramic materials occupy an increasingly important position in the field of oral cavity. [0003] Usually, for patients with serious tooth lesions that need to be extracted or whose natural teeth are missing, oral restoration can effectively compensate for tooth function. However, compared with natural teeth, there are still certain differences in the materials used for oral restoration, which will have a certain impact on users. For oral restorative materials, the wear resistance of the material is an impo...

Claims

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Application Information

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IPC IPC(8): C04B35/119C04B35/622C04B35/81A61K6/02A61K6/033A61K6/838
CPCA61K6/802A61K6/818A61K6/838C04B35/119C04B35/622C04B35/803C04B2235/3212C04B2235/3224C04B2235/3251C04B2235/3409C04B2235/349C04B2235/3813C04B2235/5276C04B2235/656C04B2235/658C04B2235/96
Inventor 王泽陆
Owner 王泽陆
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