CN115531604B - Dental crown material for oral implantation and preparation method thereof - Google Patents
Dental crown material for oral implantation and preparation method thereof Download PDFInfo
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- CN115531604B CN115531604B CN202211140680.8A CN202211140680A CN115531604B CN 115531604 B CN115531604 B CN 115531604B CN 202211140680 A CN202211140680 A CN 202211140680A CN 115531604 B CN115531604 B CN 115531604B
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- 239000000463 material Substances 0.000 title claims abstract description 39
- 238000002513 implantation Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title abstract description 16
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 111
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000002270 dispersing agent Substances 0.000 claims abstract description 26
- 239000004014 plasticizer Substances 0.000 claims abstract description 25
- 239000004053 dental implant Substances 0.000 claims abstract description 23
- 229920001451 polypropylene glycol Polymers 0.000 claims abstract description 11
- 239000013530 defoamer Substances 0.000 claims abstract description 10
- 229960004063 propylene glycol Drugs 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 229940068918 polyethylene glycol 400 Drugs 0.000 claims abstract description 9
- 238000000498 ball milling Methods 0.000 claims description 18
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 15
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 11
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 239000002518 antifoaming agent Substances 0.000 claims description 7
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical group OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 4
- -1 polydimethylsiloxane Polymers 0.000 claims description 4
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 210000000214 mouth Anatomy 0.000 abstract description 17
- 239000002002 slurry Substances 0.000 abstract description 17
- MUGSTXRSLGJVOB-UHFFFAOYSA-N 2-[2-[2-(6-methylheptanoyloxy)ethoxy]ethoxy]ethyl 6-methylheptanoate Chemical compound C(CCCCC(C)C)(=O)OCCOCCOCCOC(CCCCC(C)C)=O MUGSTXRSLGJVOB-UHFFFAOYSA-N 0.000 abstract description 4
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 description 17
- 239000007864 aqueous solution Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 6
- 229910052573 porcelain Inorganic materials 0.000 description 6
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000007943 implant Substances 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- PAKCOSURAUIXFG-UHFFFAOYSA-N 3-prop-2-enoxypropane-1,2-diol Chemical compound OCC(O)COCC=C PAKCOSURAUIXFG-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000005548 dental material Substances 0.000 description 1
- 210000004513 dentition Anatomy 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/025—Other specific inorganic materials not covered by A61L27/04 - A61L27/12
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/18—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/12—Nanosized materials, e.g. nanofibres, nanoparticles, nanowires, nanotubes; Nanostructured surfaces
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/12—Materials or treatment for tissue regeneration for dental implants or prostheses
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Dermatology (AREA)
- Medicinal Chemistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dental Preparations (AREA)
Abstract
The invention discloses an oral cavity dental implant crown material and a preparation method thereof. The composite material is prepared from the following raw materials in parts by weight: 50-100 parts of nano zirconia, 30-80 parts of glycerol, 10-20 parts of dispersing agent, 10-20 parts of plasticizer, 5-8 parts of defoamer and 1-5 parts of pH regulator. The dispersing agent adopts the combination of 3-allyloxy-1, 2-propylene glycol and polyethylene glycol 400, so that the viscosity of the slurry is reduced, and the synergy is achieved; the plasticizer adopts the combination of triethylene glycol di-isooctanoate and polypropylene glycol, so that the strength of the material is improved, and the materials are synergistic.
Description
Technical Field
The invention belongs to the technical field of dental material preparation, and particularly relates to an oral implant dental crown material and a preparation method thereof.
Background
In dental restorations, the most common conditions are dentition defects and caries lesions. When the teeth are seriously damaged and can not be treated by filling teeth, the teeth are generally repaired by taking porcelain teeth, the damaged teeth are ground, and the porcelain teeth are used as a base, and metal porcelain or all-porcelain materials are prepared into porcelain crowns and bridges and fixed on the base.
ZrO 2 The ceramic material can meet the requirements of all-ceramic crown restoration on biocompatibility and aesthetic property, and the strength and toughness of the ceramic material are obviously higher than those of other ceramic restoration materials, but the ceramic material is difficult to directly process by CAD/CAM equipment due to the characteristics of high strength and high hardness, so that the ceramic material is prevented from developing and applying.
In order to overcome the defect of preparing all-ceramic teeth by CAD/CAM equipment, a slurry micro-extrusion rapid forming technology (SME) is presented, which is a novel rapid forming technology for preparing ceramic parts in a slurry form, and can be used for forming ceramic bodies with complex structures without limitation, the treated ceramic powder, dispersing agents, plasticizers, stabilizers, humectants and other solvents are prepared into ceramic slurry according to a certain proportion, the ceramic slurry is extruded from a nozzle in a wire-like form by extrusion, and the three-dimensional digital model forming is realized by computer control. However, all-ceramic teeth prepared by micro-extrusion and rapid prototyping of the slurry tend to have lower mechanical properties than CAD/CAM processing, and further improvements in the formulation of the slurry are needed.
In the ceramic slurry dispersion system, because the specific surface area of the used ceramic powder particles is large, the surface energy is high, and the agglomeration phenomenon is easy to occur, the ceramic powder particles are uniformly dispersed by adding a proper dispersing agent into the slurry system, and the method is an important guarantee for obtaining high-performance ceramic slurry, and is a key step for improving the slurry formula. In addition, the solid content of the ceramic powder, the pH value of the slurry, the shape of the ceramic powder and the particle size of the ceramic powder and the auxiliary powder have great influence on the performance of the finally prepared all-ceramic tooth.
Disclosure of Invention
The invention aims to provide an oral implant dental crown material and a preparation method thereof.
An oral cavity dental implant crown material is prepared from the following raw materials in parts by weight: 50-100 parts of nano zirconia, 30-80 parts of glycerol, 10-20 parts of dispersing agent, 10-20 parts of plasticizer, 5-8 parts of defoamer and 1-5 parts of pH regulator.
The average grain diameter of the nano zirconia is 50-100 nm.
The glycerol is 40% by volume of glycerol aqueous solution.
The dispersing agent is 3-allyloxy-1, 2-propylene glycol and polyethylene glycol 400 according to the mass ratio of 1: 1.
The plasticizer is triethylene glycol diisooctyl and polypropylene glycol according to the mass ratio of 1: 1.
The defoaming agent is one or a combination of more of AF-865, H1125, polyoxyethylene polyoxypropylene alcohol amine ether and polydimethylsiloxane.
The pH regulator is one or the combination of more of ammonia water, sodium hydroxide, hydrochloric acid and nitric acid.
The preparation method of the dental crown material for oral cavity dental implant comprises the following steps:
(1) According to the weight portions, 50 to 100 portions of nano zirconia, 30 to 80 portions of glycerol, 10 to 20 portions of dispersing agent, 10 to 20 portions of plasticizer and 5 to 8 portions of defoamer are taken, and ultrasonic dispersion is carried out for 30 to 60 minutes;
(2) Dripping 1-5 parts of pH regulator, regulating pH to 8.2-9.2, and ball milling in a ball milling tank at 300-600 r/min for 8-12 hr.
The power of the ultrasonic wave is 100-300W, and the ultrasonic wave time is 5-15min.
The invention has the beneficial effects that: the dispersing agent adopts the combination of 3-allyloxy-1, 2-propylene glycol and polyethylene glycol 400, so that the viscosity of the slurry is reduced, and the synergy is achieved; the plasticizer adopts the combination of triethylene glycol di-isooctanoate and polypropylene glycol, so that the strength of the material is improved, and the materials are synergistic.
Detailed Description
The present invention will be described more fully hereinafter in order to facilitate an understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
An oral cavity dental implant crown material is prepared from the following raw materials in parts by weight: 80 parts of nano zirconia, 60 parts of glycerol, 15 parts of dispersing agent, 15 parts of plasticizer, 2 parts of defoaming agent AF-8656; the average grain diameter of the nano zirconia is 70nm; the glycerol is a 40% glycerol aqueous solution by volume fraction; the dispersing agent is 3-allyloxy-1, 2-propylene glycol and polyethylene glycol 400 according to the mass ratio of 1:1, a mixture of two or more of the above-mentioned materials; the plasticizer is triethylene glycol diisooctyl and polypropylene glycol according to the mass ratio of 1: 1.
The preparation method of the dental crown material for oral cavity dental implant comprises the following steps:
(1) According to the weight portions, 80 portions of nano zirconia, 60 portions of glycerol, 15 portions of dispersing agent, 15 portions of plasticizer and 6 portions of defoaming agent AF-865 are taken, and ultrasonic dispersion is carried out for 50 minutes; the power of the ultrasonic wave is 200W, and the ultrasonic wave time is 10min;
(2) 2 parts of ammonia water is added dropwise, the pH is regulated to 9.0, and the mixture is put into a ball milling tank for ball milling for 10 hours at 500r/min, so that the ball mill is prepared.
Example 2
An oral cavity dental implant crown material is prepared from the following raw materials in parts by weight: 50 parts of nano zirconia, 30 parts of glycerol, 10 parts of dispersing agent, 10 parts of plasticizer, 5 parts of polyoxyethylene polyoxypropylene amine ether and 1 part of ammonia water; the average grain diameter of the nano zirconia is 50nm; the glycerol is a 40% glycerol aqueous solution by volume fraction; the dispersing agent is 3-allyloxy-1, 2-propylene glycol and polyethylene glycol 400 according to the mass ratio of 1:1, a mixture of two or more of the above-mentioned materials; the plasticizer is triethylene glycol diisooctyl and polypropylene glycol according to the mass ratio of 1: 1.
The preparation method of the dental crown material for oral cavity dental implant comprises the following steps:
(1) According to the weight portions, 50 portions of nano zirconia, 30 portions of glycerol, 10 portions of dispersing agent, 10 portions of plasticizer and 5 portions of polyoxyethylene polyoxypropylene amine ether are taken, and ultrasonic dispersion is carried out for 40 minutes; the power of the ultrasonic wave is 100W, and the ultrasonic wave time is 15min;
(2) Dropwise adding 1 part of ammonia water, adjusting the pH to 8.2, and ball-milling for 12 hours in a ball-milling tank at 300 r/min.
Example 3
An oral cavity dental implant crown material is prepared from the following raw materials in parts by weight: 100 parts of nano zirconia, 80 parts of glycerol, 20 parts of dispersing agent, 20 parts of plasticizer, 8 parts of polydimethylsiloxane and 3 parts of ammonia water; the average grain diameter of the nano zirconia is 50-100 nm; the glycerol is a 40% glycerol aqueous solution by volume fraction; the dispersing agent is 3-allyloxy-1, 2-propylene glycol and polyethylene glycol 400 according to the mass ratio of 1:1, a mixture of two or more of the above-mentioned materials; the plasticizer is triethylene glycol diisooctyl and polypropylene glycol according to the mass ratio of 1: 1.
The preparation method of the dental crown material for oral cavity dental implant comprises the following steps:
(1) According to the weight portions, taking 100 portions of nano zirconia, 80 portions of glycerol, 20 portions of dispersing agent, 20 portions of plasticizer and 8 portions of polydimethylsiloxane, and carrying out ultrasonic dispersion for 60 minutes; the power of the ultrasonic wave is 300W, and the ultrasonic wave time is 5min;
(2) 3 parts of ammonia water is added dropwise, the pH is regulated to 9.2, and the mixture is put into a ball milling tank for ball milling for 8 hours at 600r/min, so that the ball mill is prepared.
Comparative example 1
An oral cavity dental implant crown material is prepared from the following raw materials in parts by weight: 80 parts of nano zirconia, 60 parts of glycerol, 15 parts of 3-allyloxy-1, 2-propylene glycol, 15 parts of plasticizer, 6 parts of defoamer AF-865 and 2 parts of ammonia water; the average grain diameter of the nano zirconia is 70nm; the glycerol is a 40% glycerol aqueous solution by volume fraction; the plasticizer is triethylene glycol diisooctyl and polypropylene glycol according to the mass ratio of 1: 1.
The preparation method of the dental crown material for oral cavity dental implant comprises the following steps:
(1) According to the weight portions, 80 portions of nano zirconia, 60 portions of glycerol, 15 portions of 3-allyloxy-1, 2-propanediol, 15 portions of plasticizer and 15 portions of defoamer AF-866 are taken, and ultrasonic dispersion is carried out for 50 minutes; the power of the ultrasonic wave is 200W, and the ultrasonic wave time is 10min;
(2) 2 parts of ammonia water is added dropwise, the pH is regulated to 9.0, and the mixture is put into a ball milling tank for ball milling for 10 hours at 500r/min, so that the ball mill is prepared.
Comparative example 2
An oral cavity dental implant crown material is prepared from the following raw materials in parts by weight: 80 parts of nano zirconia, 60 parts of glycerol, 400 parts of polyethylene glycol, 15 parts of plasticizer, 5 parts of defoamer AF-866 parts and 2 parts of ammonia water; the average grain diameter of the nano zirconia is 70nm; the glycerol is a 40% glycerol aqueous solution by volume fraction; the plasticizer is triethylene glycol diisooctyl and polypropylene glycol according to the mass ratio of 1: 1.
The preparation method of the dental crown material for oral cavity dental implant comprises the following steps:
(1) According to the weight portions, 80 portions of nano zirconia, 60 portions of glycerol, 400 portions of polyethylene glycol, 15 portions of plasticizer and 866 portions of defoamer AF-are taken, and ultrasonic dispersion is carried out for 50 minutes; the power of the ultrasonic wave is 200W, and the ultrasonic wave time is 10min;
(2) 2 parts of ammonia water is added dropwise, the pH is regulated to 9.0, and the mixture is put into a ball milling tank for ball milling for 10 hours at 500r/min, so that the ball mill is prepared.
Comparative example 3
An oral cavity dental implant crown material is prepared from the following raw materials in parts by weight: 80 parts of nano zirconia, 60 parts of glycerol, 15 parts of dispersing agent, 15 parts of triethylene glycol di-isooctanoate, 2 parts of defoaming agent AF-865 and ammonia water; the average grain diameter of the nano zirconia is 70nm; the glycerol is a 40% glycerol aqueous solution by volume fraction; the dispersing agent is 3-allyloxy-1, 2-propylene glycol and polyethylene glycol 400 according to the mass ratio of 1: 1.
The preparation method of the dental crown material for oral cavity dental implant comprises the following steps:
(1) According to the weight portions, 80 portions of nano zirconia, 60 portions of glycerol, 15 portions of dispersing agent, 15 portions of triethylene glycol di-isooctanoate and 6 portions of defoamer AF-865 are taken, and ultrasonic dispersion is carried out for 50 minutes; the power of the ultrasonic wave is 200W, and the ultrasonic wave time is 10min;
(2) 2 parts of ammonia water is added dropwise, the pH is regulated to 9.0, and the mixture is put into a ball milling tank for ball milling for 10 hours at 500r/min, so that the ball mill is prepared.
Comparative example 4
An oral cavity dental implant crown material is prepared from the following raw materials in parts by weight: 80 parts of nano zirconia, 60 parts of glycerol, 15 parts of dispersing agent, 15 parts of polypropylene glycol, 5 parts of defoaming agent AF-866 and 2 parts of ammonia water; the average grain diameter of the nano zirconia is 70nm; the glycerol is a 40% glycerol aqueous solution by volume fraction; the dispersing agent is 3-allyloxy-1, 2-propylene glycol and polyethylene glycol 400 according to the mass ratio of 1: 1.
The preparation method of the dental crown material for oral cavity dental implant comprises the following steps:
(1) According to the weight portions, 80 portions of nano zirconia, 60 portions of glycerol, 15 portions of dispersing agent, 15 portions of polypropylene glycol and 866 portions of defoaming agent AF-are taken, and ultrasonic dispersion is carried out for 50 minutes; the power of the ultrasonic wave is 200W, and the ultrasonic wave time is 10min;
(2) 2 parts of ammonia water is added dropwise, the pH is regulated to 9.0, and the mixture is put into a ball milling tank for ball milling for 10 hours at 500r/min, so that the ball mill is prepared.
Experimental example:
in the SME slurry micro-extrusion rapid forming process, the preparation of high solid phase, low viscosity and high plasticity slurry is a key forming process. The viscosity was measured using an NDJ-79 rotational viscometer measuring unit, and the measurement results are shown in table 1:
TABLE 1
Note that: * Representing P <0.05 compared to the control group.
The prepared dental crown material for oral implant is added on an SME slurry micro-extrusion rapid forming experimental platform (refer to the preparation process research of 3Y-ZrO2 full porcelain dental crown which is formed rapidly by slurry micro-extrusion) for printing experiments, and the sample is cylindrical and the size is set asAfter curing, the strength was measured and shown in Table 2:
TABLE 2
Note that: * Representing P <0.05 compared to the control group.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (7)
1. The dental crown material for oral implantation is characterized by being prepared from the following raw materials in parts by weight: 50-100 parts of nano zirconia, 30-80 parts of glycerol, 10-20 parts of dispersing agent, 10-20 parts of plasticizer, 5-8 parts of defoamer and 1-5 parts of pH regulator;
the dispersing agent is 3-allyloxy-1, 2-propylene glycol and polyethylene glycol 400 according to the mass ratio of 1:1, a mixture of two or more of the above-mentioned materials;
the plasticizer is triethylene glycol diisooctyl and polypropylene glycol according to the mass ratio of 1: 1.
2. The dental implant dental crown material according to claim 1, wherein the nano zirconia has an average particle diameter of 50 to 100nm.
3. The dental implant dental crown material of claim 1, wherein the glycerol is a 40% volume fraction aqueous glycerol solution.
4. The dental implant dental crown material according to claim 1, wherein the antifoaming agent is one or a combination of several of AF-865, H1125, polyoxyethylene polyoxypropylene alcohol amine ether, and polydimethylsiloxane.
5. The dental implant dental crown material according to claim 1, wherein the pH adjustor is one or a combination of several of ammonia water, sodium hydroxide, hydrochloric acid, and nitric acid.
6. The method for preparing the dental implant dental crown material according to claim 1, which is characterized by comprising the following steps:
(1) According to the weight portions, 50 to 100 portions of nano zirconia, 30 to 80 portions of glycerol, 10 to 20 portions of dispersing agent, 10 to 20 portions of plasticizer and 5 to 8 portions of defoamer are taken, and ultrasonic dispersion is carried out for 30 to 60 minutes;
(2) Dripping 1-5 parts of pH regulator, regulating pH to 8.2-9.2, and ball milling in a ball milling tank at 300-600 r/min for 8-12 hr.
7. The method for preparing dental crown material for dental implant according to claim 6, wherein the power of the ultrasonic wave is 100-300W and the ultrasonic wave time is 5-15min.
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| CN111759743A (en) * | 2020-08-04 | 2020-10-13 | 长沙博谱科学仪器有限公司 | Dental crown material for oral dental implant and preparation method thereof |
| CN113372114A (en) * | 2021-07-16 | 2021-09-10 | 合肥工业大学 | Preparation method of zirconia ceramic material extrusion type 3D printing material |
| CN114804863A (en) * | 2022-05-12 | 2022-07-29 | 湖北顺富医疗器械科技有限公司 | High-wear-resistance composite material for preparing porcelain teeth and preparation method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012134449A1 (en) * | 2011-03-29 | 2012-10-04 | Tuff Kid Crowns Llc | Pediatric and veterinary pre-made dental crowns |
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