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CN105948510B - For the preparation method of the glass ceramics of tooth-implanting - Google Patents

For the preparation method of the glass ceramics of tooth-implanting Download PDF

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CN105948510B
CN105948510B CN201610353463.5A CN201610353463A CN105948510B CN 105948510 B CN105948510 B CN 105948510B CN 201610353463 A CN201610353463 A CN 201610353463A CN 105948510 B CN105948510 B CN 105948510B
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glass ceramics
tooth
implanting
zinc
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CN105948510A (en
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不公告发明人
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Guangdong Guangdong Sincere Dental Technology Development Center
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Guangdong Guangdong Sincere Dental Technology Development Center
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    • 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
    • A61L27/10—Ceramics or glasses
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • 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
    • A61L27/02—Inorganic materials
    • A61L27/04—Metals or alloys
    • A61L27/047—Other specific metals or alloys not covered by A61L27/042 - A61L27/045 or A61L27/06
    • 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
    • A61L27/12—Phosphorus-containing materials, e.g. apatite
    • 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
    • A61L27/16—Macromolecular materials obtained 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
    • A61L27/14—Macromolecular materials
    • A61L27/20—Polysaccharides
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00—Other methods of shaping glass
    • C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/0009—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing silica as main constituent
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
    • C03C10/009—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition having a superconducting crystal phase
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00—Compositions for glass with special properties
    • C03C4/0007—Compositions for glass with special properties for biologically-compatible glass
    • C03C4/0021—Compositions for glass with special properties for biologically-compatible glass for dental use
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
    • A61L2300/102—Metals or metal compounds, e.g. salts such as bicarbonates, carbonates, oxides, zeolites, silicates
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/10—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing inorganic materials
    • A61L2300/112—Phosphorus-containing compounds, e.g. phosphates, phosphonates
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
    • A61L2300/202—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials with halogen atoms, e.g. triclosan, povidone-iodine
    • 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
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
    • A61L2300/23—Carbohydrates
    • A61L2300/232—Monosaccharides, disaccharides, polysaccharides, lipopolysaccharides
    • 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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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Epidemiology (AREA)
  • Transplantation (AREA)
  • Medicinal Chemistry (AREA)
  • Dermatology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Molecular Biology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials For Medical Uses (AREA)
  • Dental Preparations (AREA)
  • Glass Compositions (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

The invention discloses a kind of preparation methods of the glass ceramics for tooth-implanting, and the raw material based on following parts by weight is included by the glass ceramics of tooth-implanting：50 ~ 70 parts of silica, 20 ~ 70 parts of magnesia, 30 ~ 40 parts of calcium monohydrogen phosphate, 20 ~ 30 parts of phosphorus pentoxide, 15 ~ 25 parts of carborundum, 10 ~ 20 parts of zinc, 12 ~ 20 parts of polytetrafluoroethylene (PTFE), 30 ~ 40 parts of ethyl cellulose.Preparation method：Silica, magnesia, calcium monohydrogen phosphate, phosphorus pentoxide, carborundum, zinc, polytetrafluoroethylene (PTFE), ethyl cellulose are uniformly mixed, and after fusing, are heated to 1300 ~ 1400 DEG C, are reacted 2 ~ 3h；Quenching crushes, screening, cold moudling；Sintering.First powder is made in shaping to the present invention, is then prepared into glass ceramics again, can prevent from being directly formed to structural glass and cracking, improves product quality；And the product porosity that the method according to the invention is prepared is small, closely without cracking.

Description

For the preparation method of the glass ceramics of tooth-implanting
Technical field
The present invention relates to biological medicine Material Field more particularly to a kind of glass ceramics and its preparation side for tooth-implanting Method.
Background technology
Although the research of China's bio-medical material obtains some achievements to attract people's attention, integral level is not high, tracking Research is more, and source treatment is few.In terms of industrialization, the share that bio-medical material and its product account for world market is led less than 2% Import is relied on, product technology structure and level lie substantially in the primary stage.
Biodegradable ceramic refers to the feelings that the implant does not cause any undesirable tissue reaction after tissue is implanted to It progressively dissolves under condition, and is substituted by newborn tissue.The biodegradable ceramic of present I clinical practices mainly includes：Hydroxyl Apatite and mono- calcium phosphate of β are usually the film either porous material as metal implant.Due to its main component and people The inanimate matter of bone is close, thus have person it be " artificial bone ".It passes through the metabolic gradually quilt of human body after human body is implanted to Newly-generated tissue replaces, and during as porous material, the porosity of general material is 60~70%, and to the microcosmic hole of material Gap has certain requirement, generally requires 100 cave of hole master, and is interconnected between hole.Growth of this porosity to tissue It is highly advantageous, the mineralized tissue of bone can enter with fibrous connective tissue and be filled into the hole of material and be fixed, this Permanent repair to physiological is essential.But the intensity of the material is low and crisp, therefore be not suitable for propping up during use Weight position, because the bending force at these positions, distorting stress are transferred to the fracture that can cause implant after implant.Therefore normal quilt For the alternate material at the less big position of root of the tooth and stress and the filler in bone room.
For bioactive ceramics first by Hench L.L et al. proposition, referring to this material can be with around after being implanted in vivo Biochemical reaction occurs for tissue, so that forming bioconjugation between implant and tissue.This mainly include bio-vitric and Biological glass ceramic composite material.The biocompatibility of bioactive ceramics is between inactive ceramic and degradable ceramics, tool There is good biocompatibility, have no toxic side effect.Further, since it chemical composition and skeleton composition it is closely similar, After being implanted in tissue, easily formed with the chemical bonding for organizing the formation of close and firm of surrounding or through biodegradation New tissue.The research of bioactive ceramics has become such as materialogy, medicine and biochemistry with clinical practice The research hotspot of section, is increasingly valued by people, and particularly some high intensity, machinable glass ceramics are ceramic and are used for Functional glass ceramics research and development of therapeutical uses, new road is opened for the medical treatment of the mankind.Kyoto Univ Japan is small The Kubo Orthodox Church invests nineteen eighty-two and successfully has developed apatite and 34% or so wollastonite containing 38wt% or so (wo1lastonite) devitrified glass, that is, usually said A/w glass.This glass not only has preferable mechanical property Can, and stronger biochemistry can be formed with tissue and is combined.The phosphorite crystal content being precipitated from glass matrix is not Only there is large effect to the mechanical property of material, and it plays conclusive effect to the bioactivity of material.From glass The crystal grain that matrix is precipitated has outside the Pass except the raw material with material, and the heat treatment process in crystallization process also has it very big shadow It rings, it is therefore necessary to which stringent control is carried out to the preparation process of material.It is to prepare this to select suitable ingredient and heat treatment process The key of kind material.Machinable bio-microcrystal glass due to its good cutting ability, simultaneously because its milkiness characteristic with from Right enamel is very close, and quality is fine and close, wear-resisting, any surface finish, good Biocompatibility and chemical stability, therefore It gains great popularity in all-ceramic crown dummy.Particularly in recent years, as CAD/auxiliary manufactures (cAD/cAM) technology Popularization and application, open new road for application of the machinable glass ceramic in oral restoration.In conclusion glass base is given birth to The compositional system of object carrier material substantially still falls within calcium phosphate system composition, but is not influencing glass ceramics life On the basis of object compatibility and bioactivity, in order to improve the mechanical property of biomaterial, processing performance or some other property Energy, can add the substance of certain other components, and dosage is related with preparation method and preparation process.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of for glass ceramics of tooth-implanting and preparation method thereof, glass Glass ceramics porosity is small, closely without cracking.
In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：
For the glass ceramics of tooth-implanting, include the raw material of following parts by weight meter：50~70 parts of silica, magnesia 20 ~70 parts, 30~40 parts of calcium monohydrogen phosphate, 20~30 parts of phosphorus pentoxide, 15~25 parts of carborundum, 10~20 parts of zinc, polytetrafluoroethyl-ne 12~20 parts of alkene, 30~40 parts of ethyl cellulose.
As a further refinement of the present invention, for the glass ceramics of tooth-implanting, include the raw material of following parts by weight meter： 60 parts of silica, 40 parts of magnesia, 35 parts of calcium monohydrogen phosphate, 25 parts of phosphorus pentoxide, 20 parts of carborundum, 15 parts of zinc, polytetrafluoro 15 parts of ethylene, 35 parts of ethyl cellulose.
As a further refinement of the present invention, the grain size of silica is 30~60 μm.
As a further refinement of the present invention, the grain size of zinc is 60~200 μm.
The present invention also provides a kind of preparation methods of the glass ceramics for tooth-implanting.
A kind of preparation method of glass ceramics for tooth-implanting, comprises the following steps：Silica, magnesia, phosphoric acid Hydrogen calcium, phosphorus pentoxide, carborundum, zinc, polytetrafluoroethylene (PTFE), ethyl cellulose are uniformly mixed, after fusing, it is heated to 1300~ 1400 DEG C, react 2~3h；Quenching crushes, screening, cold moudling；Sintering.
As a further refinement of the present invention, sintering temperature is 1050 DEG C, sintering time 2h.
Advantageous effect：The present invention using first shaping powder is made, be then prepared into glass ceramics again, can prevent directly into Type cracks for structural glass, improves product quality；And the product porosity that the method according to the invention is prepared is small, tightly Close no cracking, porosity only 18~21%, can apply on tooth-implanting.
Specific embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1
For the glass ceramics of tooth-implanting, include the raw material of following parts by weight meter：60 parts of silica, 40 parts of magnesia, 35 parts of calcium monohydrogen phosphate, 25 parts of phosphorus pentoxide, 20 parts of carborundum, 15 parts of zinc, 15 parts of polytetrafluoroethylene (PTFE), 35 parts of ethyl cellulose.
The grain size of silica is 50 μm.
The grain size of zinc is 100 μm.
A kind of preparation method of glass ceramics for tooth-implanting, comprises the following steps：Silica, magnesia, phosphoric acid Hydrogen calcium, phosphorus pentoxide, carborundum, zinc, polytetrafluoroethylene (PTFE), ethyl cellulose are uniformly mixed, and after fusing, are heated to 1350 DEG C, React 2.5h；Quenching crushes, screening, cold moudling；Sintering.
Sintering temperature is 1050 DEG C, sintering time 2h.
Embodiment 2
For the glass ceramics of tooth-implanting, include the raw material of following parts by weight meter：50 parts of silica, 20 parts of magnesia, 30 parts of calcium monohydrogen phosphate, 20 parts of phosphorus pentoxide, 15 parts of carborundum, 10 parts of zinc, 12 parts of polytetrafluoroethylene (PTFE), 30 parts of ethyl cellulose.
The grain size of silica is 30 μm.
The grain size of zinc is 60 μm.
A kind of preparation method of glass ceramics for tooth-implanting, comprises the following steps：Silica, magnesia, phosphoric acid Hydrogen calcium, phosphorus pentoxide, carborundum, zinc, polytetrafluoroethylene (PTFE), ethyl cellulose are uniformly mixed, and after fusing, are heated to 1300 DEG C, React 2h；Quenching crushes, screening, cold moudling；Sintering.
Sintering temperature is 1050 DEG C, sintering time 2h.
Embodiment 3
For the glass ceramics of tooth-implanting, include the raw material of following parts by weight meter：70 parts of silica, 70 parts of magnesia, 40 parts of calcium monohydrogen phosphate, 30 parts of phosphorus pentoxide, 25 parts of carborundum, 20 parts of zinc, 20 parts of polytetrafluoroethylene (PTFE), 40 parts of ethyl cellulose.
The grain size of silica is 60 μm.
The grain size of zinc is 200 μm.
A kind of preparation method of glass ceramics for tooth-implanting, comprises the following steps：Silica, magnesia, phosphoric acid Hydrogen calcium, phosphorus pentoxide, carborundum, zinc, polytetrafluoroethylene (PTFE), ethyl cellulose are uniformly mixed, and after fusing, are heated to 1400 DEG C, React 3h；Quenching crushes, screening, cold moudling；Sintering.
Sintering temperature is 1050 DEG C, sintering time 2h.
Comparative example 1
Same as Example 1, difference is：Step is omitted " after fusing, to be heated to 1350 DEG C, react 2.5h；Quenching ", directly It connects and glass ceramics is prepared using the method for powder compacting.
Performance test
The properties of product of embodiment and comparative example are measured, the results are shown in Table 1.
Table 1
Conclusion：The porosity only 18~21% of the present invention, the porosity well below comparative example 1 are 45%.This is because this Powder is made using first shaping in invention, is then prepared into glass ceramics again, can prevent from being directly formed to structural glass and cracking, Improve product quality；The product porosity that the present invention is prepared is small, closely without cracking.

Claims (1)

1. the preparation method of the glass ceramics for tooth-implanting, which is characterized in that the glass ceramics includes following parts by weight meter Raw material：50~70 parts of silica, 20~70 parts of magnesia, 30~40 parts of calcium monohydrogen phosphate, 20~30 parts of phosphorus pentoxide, carbon 15~25 parts of SiClx, 10~20 parts of zinc, 12~20 parts of polytetrafluoroethylene (PTFE), 30~40 parts of ethyl cellulose；
The grain size of silica is 30~60 μm, and the grain size of zinc is 60~200 μm；
The preparation method, comprises the following steps：Silica, magnesia, calcium monohydrogen phosphate, phosphorus pentoxide, carborundum, Zinc, polytetrafluoroethylene (PTFE), ethyl cellulose are uniformly mixed, and after fusing, are heated to 1300~1400 DEG C, are reacted 2~3h；Quenching, powder It is broken, screening, cold moudling；Sintering；
Sintering temperature is 1050 DEG C, sintering time 2h.
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