Ceramic material for mouth rehabilitation and preparation method thereof

A ceramic material and a technology for dental prosthesis, applied in the field of dental prosthesis, can solve the problems of insufficient strength, insufficient aesthetics, increase product strength, etc., and achieve the effects of increasing product strength, increasing aesthetics, and improving light stability

Inactive Publication Date: 2021-06-18
刘美顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of ceramic material for dental restoration and its preparation method, by using zirconium oxide as the main, aluminum oxide as supplementary, zinc oxide and silicon dioxide are also added at the same time, to ensure the strength and strength of the ceramic material. Toughness improves the lack of brittleness of traditional ceramic materials and improves the clinical success r

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A ceramic material for dental restoration, comprising 45-65 parts by weight of zirconia, 30-40 parts of aluminum oxide, 10-20 parts of zinc oxide, 5-10 parts of aluminum borate, 10-20 parts of borax, rare earth oxide 10-15 parts of compound, 5-10 parts of silicon dioxide, 10-20 parts of sodium fluoride, 5-10 parts of resorcinol monobenzoate, 4-8 parts of thickener and 4-8 parts of coagulant .

[0030] Further, in parts by weight, it includes 48-62 parts of zirconia, 32-38 parts of aluminum oxide, 11-18 parts of zinc oxide, 6-8 parts of aluminum borate, 7-9 parts of borax, and 11-14 parts of rare earth oxide , 6-9 parts of silicon dioxide, 12-17 parts of sodium fluoride, 6-9 parts of resorcinol monobenzoate, 5-7 parts of thickener and 5-7 parts of coagulant.

Embodiment 2

[0032] A method for preparing a ceramic material for dental restoration, comprising the following steps:

[0033] Step 1: Put the zirconia into the ethanol solution and fully dissolve it by stirring the disperser;

[0034] Step 2: heating the solution obtained in step 1 to 60°C-80°C, then adding alumina, zinc oxide and silicon dioxide respectively at 60°C-80°C, and standing for reaction;

[0035] Step 3: cooling the reactant obtained in step 2, and then adding polyethylene glycol solution;

[0036] Step 4: Add a thickener and a coagulant to the solution obtained in Step 3 at room temperature, and then prepare a colloid through a three-roll mill;

[0037] Step 5: put the colloid obtained in step 4 into a high-pressure reactor for reaction, and obtain the first powder after the reaction;

[0038] Step 6: mixing the first powder obtained in step 5 with aluminum borate, borax, rare earth oxides, sodium fluoride and resorcinol monobenzoate;

[0039] Step 7: Put the mixed materia...

Embodiment 3

[0047]Aiming at the quality inspection of a ceramic material for oral restoration prepared by the method of the present invention, the ceramic material prepared by the method of the present invention is selected, preferably, including 45 parts of zirconia, 30 parts of aluminum oxide, 10 parts of zinc oxide, and 5 parts of aluminum borate , 10 parts of borax, 10 parts of rare earth oxide, 5 parts of silicon dioxide, 10 parts of sodium fluoride, 5 parts of resorcinol monobenzoate, 4 parts of thickener and 4 parts of coagulant, another group can be selected Commercially available common pottery is done detection comparison, sets up two control groups of A and B, wherein A group is commercially available common group, and B group is the ceramic material prepared by the method of the present invention, and detection standard is the density / (g of each group of ceramic material cm-3), average particle size / mm-3, surface roughness Ra / mm-3, flexural strength / MPa and fracture toughness K...

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Abstract

The invention discloses a ceramic material for mouth rehabilitation and a preparation method thereof, and relates to the technical field of mouth rehabilitation. The ceramic material comprises the following components in parts by weight: 45-65 parts of zirconium oxide, 30-40 parts of aluminum oxide, 10-20 parts of zinc oxide, 5-10 parts of aluminum borate, 10-20 parts of borax, 10-15 parts of rare earth oxide, 5-10 parts of silicon dioxide, 10-20 parts of sodium fluoride, 5-10 parts of resorcinol monobenzoate, 4-8 parts of a thickening agent and 4-8 parts of a coagulant. The zirconium oxide is used as a main material, the aluminum oxide is used as an auxiliary material, and the zinc oxide and the silicon dioxide are added, so that the strength and the toughness of the prepared ceramic material are ensured, the defect that the traditional ceramic material is brittle and easy to break is overcome, and the clinical success rate is improved. Meanwhile, a certain sterilization effect is achieved through sodium fluoride. Through resorcinol monobenzoate, the light stability of the ceramic material is improved, and the attractiveness of the ceramic material is improved. Gaps generated in the ceramic sintering process are filled with the thickening agent and the coagulant, the defects of the dental restoration are reduced, and the product strength is improved.

Description

technical field [0001] The invention belongs to the technical field of oral restoration, and in particular relates to a ceramic material for oral restoration and a preparation method thereof. Background technique [0002] Oral restoration refers to the treatment of soft and hard tissue defects in the oral cavity and maxillofacial region using artificial restorations, and also includes the treatment of periodontal disease and temporomandibular joint disease through restoration methods. With the improvement of living standards and the diversification of diet, there are more and more patients with tooth loss caused by dental caries, periodontitis and tooth damage in my country. Ceramic material is considered to be the best material to match the appearance of human teeth, and its excellent aesthetics, wear resistance, and color stability make it the most common oral restoration material. At present, ceramics are mainly used in oral restoration in the form of porcelain-fused-to-...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/622C04B35/63C04B35/632
CPCC04B35/48C04B35/622C04B35/6303C04B35/632C04B2235/3217C04B2235/3284C04B2235/3409C04B2235/3224C04B2235/3418C04B2235/445C04B2235/77C04B2235/96C04B2235/963C04B2235/5418C04B2235/78
Inventor 刘美顺孙乐海
Owner 刘美顺
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