54 results about "Bisphenol a-glycidyl methacrylate" patented technology

The invention relates to a photo-curing composition for tooth, with belongs to the field of preparation for dentistry. The object of the invention is to solve the problem that the abrasion resistance and obdurability of photo-curing dentistry compound resin material for filling tooth cavity is needed to be improved urgently. The composition provided by the invention comprises the following components, in mass percentages, nano inorganic powder treated by surface modification with silicone hydride coupling agent 20-85%; resin monomer such as bisphenol A glycidyl methacrylate 8%-70%; fluidifying agent such as triethylene glycol dimethacrylate 5%-25%; photoinitiator such as camphorquinon 0.25%-2%; coinitiator such as 2-(dimethylamino)ethyl methacrylate 0.5%-3%; the main point of the invention is the nano inorganic powder contains flaky alumina granules 10-80 wt.% based on its own weight. Flaky alumina granule component in the composition provided by the invention contributes to improve abrasion resistance and obdurability of photo-curing material.

The invention discloses a dental filling composite resin using a silicon dioxide nano-fiber as a filler. The resin is prepared from the following raw materials in percentage by mass: 18-22 percent of bisphenol A-glycidyl methacrylate, 4-16 percent of triethylene glycol dimethacrylate, 0.5-1 percent of camphorquinone, 0.5-1 percent of ethyl 4-N,N-dimethylaminobenzoate and 60-75 percent of silicon dioxide nano-fiber. The preparation process is simple and easy to operate, the raw materials are easily available at relatively low price, and the prepared composite resin has excellent physical mechanical performance, good abrasion resistance and long service life, has the characteristics of light color, low polymerization shrinkage and the like, and is expected to be used in clinical application.

The invention relates to a method for preparing fluorine-contained photo-curing nano compound resin dental materials, belonging to the field of medical and dental preparations. The traditional fluorine-contained anti-secondary caries compound resin caries-filling materials have the problems of excessive fluorine release speed, poor interface compatibility and no rigid support for caries-filling bodies, and the scheme aims at solving the problems. The method comprises the following steps of: carrying out surface modification on nano inorganic powder with silane coupling agents, uniformly mixing the modified nano inorganic powder, a bisphenol A glycidyl methacrylate monomer, a triethylene-glycol dimethacrylate diluting agent, a camphorquinone evocating agent, a dimethylaminoethyl methacrylate coinitiator and other materials under the dark condition, and defoaming in vacuum. The point is as follows: the nano inorganic powder contains fluorine-carrying mesoporous silicon dioxide microspheres accounting for 10-80 percent of the self weight. The microspheres have the functions of slowly releasing fluorine to prevent secondary caries and reinforcing structure.

The invention discloses an anti-bacterial resin composite material for the dental department. The anti-bacterial resin composite material is prepared from the following raw materials in parts by weight: 30-45 parts of bisphenol A-glycidyl methacrylate, 10-30 parts of triethylene-glycol dimethacrylate, 4-12 parts of 1,6-hexanediol dimethacrylate, 2-8 parts of spiro orthoester, 0.5-2 parts of polytetrafluoroethylene, 1-3.5 parts of camphorquinone, 3-10 parts of tetrapod-like zinc oxide whiskers, 2-10 parts of modified nano titanium dioxide, 2-12 parts of chitosan, 1-2.5 parts of diethylenetriamine, 0.3-1 part of polyvinylpyrrolidone, and 1-2.5 parts of sodium p-tolylsulfinate. For the anti-bacterial resin composite material for the dental department and a preparation method of the anti-bacterial resin composite material for the dental department, the preparation method is simple, the operation is easy, and the obtained anti-bacterial resin composite material for the dental department is high in strength, has good attaching degree with teeth, and is excellent in antibacterial property.

The invention discloses antibacterial monomer-containing repairing composite resin for dentistry and a preparation method thereof. The composite resin comprises 1-25% of bisphenol A-glycidyl methacrylate, 1-20% of carbamic acid ester dimethacrylate, 4-15% of triethylene glycol dimethacrylate, 1-10% of methylacryloyl oxygen dodecylpyridinium bromide, 55-80% of silicon dioxide, 0.5-1% of camphorquinone and 0.5-1% of N, N-dimethylamino ethyl methacrylate. The methylacryloyl oxygen dodecylpyridinium bromide in the composite resin is an antibacterial bonding monomer synthesized from antibacterial quaternary ammonium dodecylpyridine and polymerizable methylacryloyl groups and can be polymerized with other monomers, so that the composite resin has an antibacterial effect, and the bonding effect between the resin and teeth can be enhanced.

The invention relates to a composition for teeth for promoting the wear resistance and the toughness by means of a composite modification principle, which belongs to the field of preparations for dentistry. The wear resistance and the toughness of the prior dental composite resin material used for tooth cavity filling need to be improved, and the proposal devotes to solving the problem. The composition comprises the following components in percentage by weight: 20 to 85 percent of nano-inorganic powder of which the surface is modified by a silane coupling agent, 8 to 70 percent of resin monomer (such as bisphenol A-glycidyl methacrylate), 5 to 25 percent of diluting agent (such as triethylene-glycol dimethacrylate), 0.25 to 2 percent of photo initiator (such as camphorquinone), and 0.5 to 3 percent of coinitiator (such as 2-(dimethylamino)ethyl methacrylate). The proposal emphasizes that the nano-inorganic powder contains silicon dioxide nano-rods which account for 10 to 80 percent of the weight of the nano-inorganic powder. The silicon dioxide nano-rods in the composition help to improve the wear resistance and the toughness of materials.

The invention discloses a dental restoration filling material containing a special function monomer. The dental restoration filling material is prepared from, by mass, 5%-30% of bisphenol A glycidy methacrylate, 5%-20% of TEGDMA, 5%-20% of the special function monomer, 1%-10% of fluorine-containing urethane acrylate, 50%-70% of porcelain cement, 0.5%-1% of camphorquinone and 0.5%-1% of 2-(dimethylamino)ethyl methacrylate. The dental restoration filling material has the greatest advantages that hydroxyethyl methylacrylate and phosphate of the function monomer are synthesized, so that the Bis-GMA viscosity is lowered, and the operating performance is improved; meanwhile, the dental restoration filling material can be reacted with substances such as calcium ions in teeth to form chemical bonds, and the adhesive force between the restoration material and the tissue of the teeth is increased; due to the existence of fluorine elements, the antibacterial property of the teeth can be greatly improved. By testing through tests, the bending strength is 93-120 MPa, and the tensile strength is 9-15 MPa. The invention further discloses a preparation method of the dental restoration filling material containing the special function monomer.

The invention relates to a composition for tooth with abrasion resistance and obdurability, which belongs the field of preparation for medical application and dentistry. The object of the invention is to solve the problem that the abrasion resistance and obdurability of dentistry compound resin material for filling tooth cavity is needed to be improved urgently. The composition provided by the invention comprises the following components, in mass percentages, nano inorganic powder treated by surface modification with silicone hydride coupling agent 20-85%; resin monomer such as bisphenol A glycidyl methacrylate 8%-70%; fluidifying agent such as triethylene glycol dimethacrylate 5%-25%; photoinitiator such as camphorquinon 0.25%-2%; coinitiator such as 2-(dimethylamino)ethyl methacrylate 0.5%-3%. The main point of the invention is the nano inorganic powder contains flaky alumina granules 10-80 wt.% based on its own weight. Microsized flaky alumina granule component in the composition provided by the invention contributes to improve abrasion resistance and obdurability of material.

The invention relates to a method for preparing a dental composite resin material aiming to improve the wear resistance and the toughness, which belongs to the field of preparations for dentistry. The wear resistance and the toughness of the prior dental composite resin material used for tooth cavity filling need to be further improved, and the proposal devotes to solving the problem. The method of the proposal comprises the following steps that: a silane coupling agent is utilized to perform surface modification on nano-inorganic powder, the modified nano-inorganic powder and materials such as a monomer (such as bisphenol A-glycidyl methacrylate), a diluting agent (such as triethylene-glycol dimethacrylate), a photo initiator (such as camphorquinone), and a coinitiator (such as 2-(dimethylamino)ethyl methacrylate) are mixed evenly under dark conditions, and bubbles are removed under vacuum conditions. The key point of the proposal is that the nano-inorganic powder contains silicon dioxide nano-rods which account for 10 to 80 percent of the weight of the nano-inorganic powder. The silicon dioxide nano-rods added into the material help to improve the wear resistance and the toughness of the material.

The invention relates to a preparation method of multicomponent composite materials used for single paste type cavity filling, belonging to the field of preparation for dental use. The technical proposal aims at solving the problem that current dental composite resin materials used for cavity filling urgently need to be further improved in the aspects of wear-resisting properties and toughness. The method comprises the following steps: silane coupling agent is adopted to carry out surface modification on inorganic nano powder; the modified inorganic nano powder is evenly mixed with monomers such as bisphenol A glycidyl methacrylate, thinners such as triethylene- glycol dimethacrylate, light initiators such as camphorquinone, coinitiators such as dimethylamino ethyl methacrylate and the like in the absence of light; bubbles are eliminated in vacuum. The technical proposal has the key point that the inorganic nano powder contains short-rod like nano-particle hydroxyapatite accounting for 10-80% of the inorganic nano powder by weight. The short-rod like nano-particle hydroxyapatite added in the multicomponent composite materials helps to improve the wear-resisting properties and toughness of the materials.

The invention relates to a method for preparing dental fortified resin based on the principle of material hybridization modification, belonging to the field of medical and dental preparation. The wear-resisting property and the obdurability of the existing composite dental resin used for filling tooth cavities are in urgent need to be improved, and the invention aims at promoting the technological progress of the resin. The method includes the steps: carrying out the operation of surface modification to inorganic nano-sized powder under the utilization of silane coupling agent; uniformly mixing the modified inorganic nano-sized powder with monomer, such as bisphenol A methyl glycidyl acrylate, diluting agent, such as triethylene-glycol dimethacrylate, light trigger, such as camphorquinone, coinitiator, such as dimethylaminoethyl methacrylate, and other materials under photophobic conditions; and eliminating air bubbles under vacuum condition. The invention is characterized in that the interior of the inorganic nano-sized powder contains aluminium oxide nano rods which are 10 to 80 percent of the weight of the inorganic nano-sized powder. The aluminium oxide nano rods added inside contribute to the improvement of the wear-resisting property and the obdurability of the materials.

The invention relates to a fluoridated dental composite resin material contributing to resisting secondary caries, and belongs to the field of dental preparations. The conventional simple villiaumite-blended composite resin caries-filling material has the problems of too quick fluorine release, poor interfacial compatibility and no rigid support for a caries-filling body, and the scheme aims to solve the problems. The fluoridated dental composite resin material comprises the following components in percentage by weight: 20 to 85 percent of nano inorganic powder of which the surface is modified by a silane coupling agent, 8 to 70 percent of bisphenol A glycidyl methacrylate resin monomer, 5 to 25 percent of triethylene-glycol dimethacrylate diluent, 0.25 to 2 percent of camphorquinone photoinitiator, and 0.5 to 3 percent of dimethylamino ethyl methacrylate coinitiator; and importantly, the nano inorganic powder comprises 10 to 80 weight percent of fluorine-carrying mesoporous silica microspheres which can slowly release fluorine and strengthen the composite resin.

The invention relates to a preparation method of dental repair material containing rare earth oxide, which relates to the field of dental preparation. The invention aims at solving the problem that the existing dental material used for filling caries needs to be further improved in the aspects of abrasion resistance and toughness. The scheme comprises the steps of utilizing silane coupling agent to conduct surface modification to inorganic nano-powder; evenly mixing the modified inorganic nano-powder with bisphenol A glycidyl methacrylate monomer, triethylene-glycol dimethacrylate thinner, camphorquinone photo-initiator and dimethylamino ethyl methacrylate coinitiator and the like in the condition without sunlight; and removing bubbles under vacuum condition. The key point of the scheme isas follows: the inorganic nano-powder contains ceria nano-tube which accounts for 10 to 80 percent of weight of the inorganic nano-powder. The ceria nano-tube added in the inorganic nano-powder is beneficial to improving the anchoring force and increasing the toughness.

The invention relates to a dental material reinforced by rigid inorganic nano-filler, which relates to the field of dental preparation. The scheme aims at solving the problem that the existing photo-curing single-paste dental material used for repairing caries needs to be improved in the aspect of abrasion resistance. The material comprises the following components by weight percentage: 20 to 85 percent of inorganic nano-powder which is subjected to surface modification by silane coupling agent, 8 to 70 percent of bisphenol A glycidyl methacrylate resin monomer, 5 to 25 percent of triethylene-glycol dimethacrylate thinner, 0.25 to 2 percent of camphorquinone photo-initiator and 0.5 to 3 percent of dimethylamino ethyl methacrylate coinitiator. The key point of the scheme is as follows: theinorganic nano-powder contains columnar mesoporous silica which accounts for 10 to 80 percent of weight of the inorganic nano-powder. The columnar mesoporous silica has a larger bonding interface witha resin matrix, thus not falling off easily, and being beneficial to resisting abrasion.

The invention discloses a binder used for simulating aptyalia pathological oral environment and an application thereof. The method for simulating aptyalia pathological oral environment is characterized in that lactic acid is added in a NaCl solution until the pH value of the solution is 4; the binder comprises the following components by mass percentage: 40% of amorphous calcium phosphate nanoparticles and 60% of PEHB; wherein the PEHB comprises the following components by weight percentage: 42% of phenyltriglycerol dimethyl acrylate, 42% of ethoxy bisphenol A dimethacrylate, 1% of phenyl di(2,4,6-trimethylbenzoyldiphenyl) phosphorus oxide, 10% of hydroxyethyl methylacrylate, and 5% of bisphenol A glycidyl methacrylate. The binder can simultaneously perform bonding protection and inhibit caries development, can effectively realize the re-mineralization of demineralized dentine, can release the calcium and phosphor ions, neutralizes local acidic environment, can realize re-mineralization of acidic environment lacking of calcium and phosphor, and can be clinically used for preventing root caries of the elderly and rampant caries of extreme oligosialia patients.

The invention relates to a dental adhesive resin and a preparation method thereof, and belongs to the field of medical dental materials. The dental adhesive resin comprises the following raw materials by weight: 10-18 parts of 37% phosphoric acid, 20-30 parts of MTAD, 25-35 parts of bisphenol A glycidyl methacrylate, 18-28 parts of hydroxyethyl methacrylate, 25-30 parts of hexafluorosilicate, 12-20 parts of bismethacrylate, 8-15 parts of a nanometer silicon filler, 1-5 parts of an antimicrobial agent, 15-30 parts of ethanol and 10-25 parts of water. The dental adhesive resin provided by the invention is easy to use and strong in bonding force, the formed film is thin and uniform, and the restored teeth are beautiful.

The invention relates to a dental material containing inorganic filler components, belonging to the field of dental preparation and aiming at solving the problem that performances of the light-curing single-paste formulation dental material used for cavity restoration on wearability and toughness need to be improved urgently at present. The dental material comprises the following components by weight: 20-85% of nano-inorganic powder with the surface modified by a silane coupling agent, 8-70% of resin monomer such as bisphenol A-glycidyl methacrylate, 5-25% of thinner such as triethylene-glycol dimethacrylate, 0.25-2% of photo-initiator such as camphorquinone, and 0.5-3% of coinitiator such as dimethylaminoethyl methacrylate. The key point is as follows: the nano-inorganic powder contains the zirconia nano-tube which accounts for 10-80% the weight of the nano-inorganic powder. The zirconia nano-tube has high hardness and rod-like appearance, thus being beneficial to improving the wearability and the dbdurability of the material.

The invention relates to a preparation method for dental fortified resin based on the principle of material hybridization modification, belonging to the field of medical and dental preparation. The wear-resisting property and the obdurability of the existing composite dental resin used for filling tooth cavities are in urgent need to be improved, and the invention aims at promoting the technological progress of the resin. The method includes the steps: carrying out the operation of surface modification to inorganic nano-sized powder under the utilization of silane coupling agent; uniformly mixing the modified inorganic nano-sized powder with monomer, such as bisphenol A methyl glycidyl acrylate, diluting agent, such as triethylene-glycol dimethacrylate, light trigger, such as camphorquinone, coinitiator, such as dimethylaminoethyl methacrylate, and other materials under photophobic conditions; and eliminating air bubbles under vacuum condition. The invention is characterized in that the interior of the inorganic nano-sized powder contains aluminium oxide nano rods which are 10 to 80 percent of the weight of the inorganic nano-sized powder. The aluminium oxide nano rods arranged inside contribute to the improvement of the wear-resisting property and the obdurability of the materials.

The invention discloses high-thermal-conductivity silver paste for bonding a high-power component and a preparation method of the high-thermal-conductivity silver paste. The high-thermal-conductivitysilver paste comprises epoxy resin, a modifier, a curing agent and silver powder, the epoxy resin is one or a mixture of more of bisphenol A epoxy resin, alicyclic epoxy resin and bisphenol F epoxy resin; the modifier is formed by mixing one or more of thermoplastic phenolic resin, gamma butyrolactone, bisphenol A diallyl ether and bisphenol A glycidyl methacrylate; the curing agent is formed by mixing one or more of a latent curing agent 2-ethyl-4-methylimidazole, 1-cyanoethyl-2-ethyl-4-methylimidazole, methylhexahydrophthalic anhydride and dicyandiamide; and the silver powder is formed by mixing one or more of flake silver powder, sphere-like silver powder and part of flake silver powder. The invention also provides a preparation method and a test method of the silver paste. The problemsthat existing silver paste is poor in thermoelectricity and bonding performance, and the bonding strength and the heat conduction performance contradict with each other are solved. The method is widely applied to the bonding process of the power device.

The invention relates to a caries-filling composition depending on photo-initiated crosslinking polymerization curing reaction mechanism, belonging to the field of preparation for dentistry. At present, the performances of caries-filling composite resin material on wearability and toughness need to be improved urgently, and the invention aims at solving the problem. The composition comprises the following compositions by weight: 20-85% of nano-inorganic powder with the surface modified by a silane coupling agent, 8-70% of resin monomer such as bisphenol A-glycidyl methacrylate, 5-25% of thinner such as triethylene-glycol dimethacrylate, 0.25-2% of photo-initiator such as camphorquinone, and 0.5-3% of coinitiator such as dimethylaminoethyl methacrylate. The key point is as follows: the nano-inorganic powder contains the flaky hydroxyapatite which accounts for 10-80% of the weight of the nano-inorganic powder. The flaky hydroxyapatite in the composition can be beneficial to improving the wearability and the dbdurability of the material.

The invention relates to a dental material preparation method utilizing osteoid nano particle for compound modification, belonging to the field of dentistry preparation. The invention aims at solving the problem that the current dental compound resin material used for filling tooth cavity needs to be further improved in wear-resisting property and toughness. The method of the invention includes: silane coupling agent is utilized for surface modification on nano inorganic powder, the modified nano inorganic powder is evenly mixed with materials of bisphenol A glycidyl methacrylate monomer, TEGDMA diluent, camphorquinone light trigger, dimethylamino ethyl methacrylate coinitator and the like under the condition of keeping out of the sun, and bubbles are excluded under vacuum. The key point of the invention lies in that the nano inorganic powder contains platy hydroxylapatite accounting for 10-80% of self weight percentage. The contained platy hydroxylapatite contributes to improving the wear-resisting property and the toughness of the material.

The invention provides novel antibiotic bone cement and a preparation method thereof. The material comprises a component A and a component B; the component A comprises bisphenol A glycidyl methacrylate, triethylene glycol dimethacrylate, a developing agent, an inorganic filler, an initiator and an antibiotic; the component B comprises bisphenol A ethyoxyl dimethacrylate, triethylene glycol dimethacrylate, a developing agent, an inorganic filler, an accelerator and an antibiotic. The invention further relates to the preparation method of the material. According to the invention, various bone cement products containing different antibiotics are prepared, wherein the antibiotic with poor thermal stability can be inactivated due to heating when being used in PMMA (polymethyl methacrylate) bonecement so as to reduce or lose the antibacterial property, but is still kept having the excellent antibacterial property in the product provided by the invention, thereby expanding an antibiotic userange of the bone cement; moreover, compared to the PMMA bone cement containing the antibiotic in the market, the product provided by the invention is wider in antibacterial spectrum, higher in antibacterial property and smaller in toxic or side effect.

The invention discloses a preparation method of a dental composite material, and belongs to the field of the preparation of a dental composite material. The invention provides a preparation method of a dental composite material with mechanical property improved. According to the method, nano-fibers, which are of shell (polymethyl methacrylate, PMMA)-core (polyacrylonitrile, PAN) structure, are prepared by virtue of a uniaxial blended electrostatic spinning process, and the nano-fibers are used for enhancing a dental light-cured resin substrate Bis-GMA (bisphenol A glycidyl methacrylate), so that the composite material is obtained. Compared with a pure resin system, the dental composite material prepared by the method improves bending strength by 18.7%, improves bending modulus by 14.1% and improves fracture toughness by 64.8%.

The invention relates to a preparation method of a dental reinforced material, which relates to the field of dental preparation. The scheme aims at solving the problem that the existing dental material used for filling caries needs to be further improved in the aspect of abrasion resistance. The method comprises the steps of utilizing silane coupling agent to conduct surface modification to inorganic nano-powder; evenly mixing the modified inorganic nano-powder with bisphenol A glycidyl methacrylate monomer, triethylene-glycol dimethacrylate thinner, camphorquinone photo-initiator and dimethylamino ethyl methacrylate coinitiator and the like in the condition without sunlight; and removing bubbles under vacuum condition. The key point of the scheme is as follows: the inorganic nano-powder contains columnar mesoporous silica which accounts for 10 to 80 percent of weight of the inorganic nano-powder. The reinforced filler of the columnar mesoporous silica adopted in the method has a larger contact interface with resin matrix, therefore, the filler does not fall off easily, which is beneficial to improving the abrasion resistance.

The invention relates to a drug release mechanism based fluorine-containing dental restorative material, belonging to the field of dental preparation. The invention aims at solving the problem that the current cavity-filling compound resin materials in the simple fluorine doped salt are fast in fluorine release, poor in interfacial compatibility and have no rigid support for the cavity-filling bodies. The material comprises the following components in percentage by weight: 20-85% of inorganic nanopowder subjected to surface modification by silane coupling agents, 8-70% of resin monomers such as bisphenol A-glycidyl methacrylate, 5-25% of diluents such as triethylene-glycol dimethacrylate, 0.25-2% of photoinitiators such as camphorquinone and 0.5-3% of coinitiators such as dimethylaminoethyl methacrylate. The technical scheme is characterized in that the inorganic nanopowder contains fluorine-carrying zirconia nanotubes which account for 10-80% of the inorganic nanopowder by weight. The fluorine-carrying zirconia nanotubes have the functions of resisting secondary caries by releasing fluorine and reinforcing structures.

The invention relates to a composition containing artificial bone component for filling tooth cavity, which belongs to the field of preparation for dentistry. The object of the invention is to solve the problem that the abrasion resistance and obdurability of dentistry compound resin material for filling tooth cavity is needed to be improved urgently. The composition provided by the invention comprises the following components, in mass percentages, nano inorganic powder treated by surface modification with silicone hydride coupling agent 20-85%; resin monomer such as bisphenol A glycidyl methacrylate 8%-70%; fluidifying agent such as triethylene glycol dimethacrylate 5%-25%; photoinitiator such as camphorquinon 0.25%-2%; coinitiator such as 2-(dimethylamino)ethyl methacrylate 0.5%-3%; the main point of the invention is the nano inorganic powder contains short stick shaped nano hydroxyapatite 10-80 wt.% based on its own weight. Short stick shaped nano hydroxyapatite in the composition provided by the invention contributes to improve abrasion resistance and obdurability of material.

The invention relates to a dental material containing rare earth elements, which belongs to the field of dental preparation. The scheme aims at solving the problem that the existing photo-curing single-paste dental material used for filling caries needs to be further improved in the aspects of abrasion resistance and toughness. The material comprises the following components by weight percentage:20 to 85 percent of inorganic nano-powder which is subjected to surface modification by silane coupling agent, 8 to 70 percent of bisphenol A glycidyl methacrylate resin monomer, 5 to 25 percent of triethylene-glycol dimethacrylate thinner, 0.25 to 2 percent of camphorquinone photo-initiator and 0.5 to 3 percent of dimethylamino ethyl methacrylate coinitiator. The key point of the scheme is as follows: the inorganic nano-powder contains ceria nano-tube which accounts for 10 to 80 percent by weight of the inorganic nano-powder. The addition of the ceria nano-tube in the inorganic nano-powder isbeneficial to improving the abrasion resistance and increasing the toughness.

The invention relates to a dental material containing inorganic filler components, belonging to the field of dental preparation and aiming at solving the problem that performances of the light-curing single-paste formulation dental material used for cavity restoration on wearability and toughness need to be improved urgently at present. The dental material comprises the following components by weight: 20-85% of nano-inorganic powder with the surface modified by a silane coupling agent, 8-70% of resin monomer such as bisphenol A-glycidyl methacrylate, 5-25% of thinner such as triethylene-glycoldimethacrylate, 0.25-2% of photo-initiator such as camphorquinone, and 0.5-3% of coinitiator such as dimethylaminoethyl methacrylate. The key point is as follows: the nano-inorganic powder contains the zirconia nano-tube which accounts for 10-80% the weight of the nano-inorganic powder. The zirconia nano-tube has high hardness and rod-like appearance, thus being beneficial to improving the wearability and the dbdurability of the material.

The invention relates to a preparation method of a dental material based on a photochemical fast reaction mechanism, which relates to the field of dental preparation. The scheme aims at solving the problem that the existing dental material used for filling caries needs to be further improved in the aspects of abrasion resistance and toughness. The method comprises the steps of utilizing silane coupling agent to conduct surface modification to inorganic nano-powder; evenly mixing the modified inorganic nano-powder with bisphenol A glycidyl methacrylate monomer, triethylene-glycol dimethacrylatethinner, camphorquinone photo-initiator and dimethylamino ethyl methacrylate coinitiator and the like under a condition without sunlight; and removing bubbles under a vacuum condition. The key pointof the scheme is as follows: the inorganic nano-powder contains alumina nano-tube which accounts for 10 to 80 percent of weight of the inorganic nano-powder. The alumina nano-tube added in the inorganic nano-powder is beneficial to improving the anchoring force and increasing the toughness due to the feature and toughness thereof.

The invention discloses antibacterial monomer-containing repairing composite resin for dentistry and a preparation method thereof. The composite resin comprises 1-25% of bisphenol A-glycidyl methacrylate, 1-20% of carbamic acid ester dimethacrylate, 4-15% of triethylene glycol dimethacrylate, 1-10% of methylacryloyl oxygen dodecylpyridinium bromide, 55-80% of silicon dioxide, 0.5-1% of camphorquinone and 0.5-1% of N, N-dimethylamino ethyl methacrylate. The methylacryloyl oxygen dodecylpyridinium bromide in the composite resin is an antibacterial bonding monomer synthesized from antibacterial quaternary ammonium dodecylpyridine and polymerizable methylacryloyl groups and can be polymerized with other monomers, so that the composite resin has an antibacterial effect, and the bonding effect between the resin and teeth can be enhanced.