JP2015525180A - 二ケイ酸リチウムアパタイトガラスセラミック - Google Patents
二ケイ酸リチウムアパタイトガラスセラミック Download PDFInfo
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- JP2015525180A JP2015525180A JP2015509377A JP2015509377A JP2015525180A JP 2015525180 A JP2015525180 A JP 2015525180A JP 2015509377 A JP2015509377 A JP 2015509377A JP 2015509377 A JP2015509377 A JP 2015509377A JP 2015525180 A JP2015525180 A JP 2015525180A
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- 239000002241 glass-ceramic Substances 0.000 title claims abstract description 105
- 229910052586 apatite Inorganic materials 0.000 title claims abstract description 70
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 title claims abstract description 70
- WVMPCBWWBLZKPD-UHFFFAOYSA-N dilithium oxido-[oxido(oxo)silyl]oxy-oxosilane Chemical compound [Li+].[Li+].[O-][Si](=O)O[Si]([O-])=O WVMPCBWWBLZKPD-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000011521 glass Substances 0.000 claims description 73
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 35
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 27
- 239000006065 metasilicate glass ceramic Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 16
- 239000013078 crystal Substances 0.000 claims description 14
- 238000002425 crystallisation Methods 0.000 claims description 14
- 230000008025 crystallization Effects 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 7
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 239000005548 dental material Substances 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 5
- 229910052587 fluorapatite Inorganic materials 0.000 claims description 5
- 229910005793 GeO 2 Inorganic materials 0.000 claims description 2
- 229910021193 La 2 O 3 Inorganic materials 0.000 claims description 2
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 8
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 11
- 239000002243 precursor Substances 0.000 description 8
- 238000003825 pressing Methods 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000000084 colloidal system Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000007850 fluorescent dye Substances 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010899 nucleation Methods 0.000 description 3
- 230000006911 nucleation Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 230000000975 bioactive effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003103 lithium disilicate glass Substances 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 239000012890 simulated body fluid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000002076 thermal analysis method Methods 0.000 description 2
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000007707 calorimetry Methods 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003251 chemically resistant material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- -1 oxides Chemical class 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000006017 silicate glass-ceramic Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
Classifications
-
- 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
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
- A61C13/083—Porcelain or ceramic teeth
- A61C13/0835—Ceramic coating on metallic body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/70—Preparations for dentistry comprising inorganic additives
- A61K6/71—Fillers
- A61K6/74—Fillers comprising phosphorus-containing compounds
- A61K6/75—Apatite
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
- A61K6/816—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising titanium oxide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
- A61K6/818—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
- A61K6/824—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising transition metal oxides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/831—Preparations for artificial teeth, for filling teeth or for capping teeth comprising non-metallic elements or compounds thereof, e.g. carbon
- A61K6/833—Glass-ceramic composites
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/849—Preparations for artificial teeth, for filling teeth or for capping teeth comprising inorganic cements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/849—Preparations for artificial teeth, for filling teeth or for capping teeth comprising inorganic cements
- A61K6/853—Silicates
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
- C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
-
- 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
- C03C10/0018—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 SiO2, Al2O3 and monovalent metal oxide as main constituents
- C03C10/0027—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 SiO2, Al2O3 and monovalent metal oxide as main constituents containing SiO2, Al2O3, Li2O as main constituents
-
- 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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/097—Glass compositions containing silica with 40% to 90% silica, by weight containing phosphorus, niobium or tantalum
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- 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
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- 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
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- 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
- C03C2204/00—Glasses, glazes or enamels with special properties
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- 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
- C03C2205/00—Compositions applicable for the manufacture of vitreous enamels or glazes
- C03C2205/06—Compositions applicable for the manufacture of vitreous enamels or glazes for dental use
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
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- Oral & Maxillofacial Surgery (AREA)
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- General Health & Medical Sciences (AREA)
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- Crystallography & Structural Chemistry (AREA)
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- Dispersion Chemistry (AREA)
- Molecular Biology (AREA)
- Dentistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
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- Dental Prosthetics (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
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Abstract
Description
成分 重量%
SiO2 60.0〜74.0
Li2O 10.0〜20.0
P2O5 3.0〜7.0
K2O 3.0〜7.0
CaO 0〜5.0
SrO 0〜4.0
F 0.1〜1.0
三価元素の酸化物
および/またはさらに
四価元素の酸化物 2.0〜7.0
の少なくとも1種、特に全てを含み、
CaO+SrOが 1.0〜6.0である、
二ケイ酸リチウムアパタイトガラスセラミックが好ましい。
(a)核を有する出発ガラスを形成するための、温度430〜550℃における出発ガラスの熱処理、および
(b)二ケイ酸リチウムガラスセラミックを形成するための温度750〜950℃における核を有する出発ガラスの熱処理
を含む。
表I中に示した組成を有する合計14個の本発明によるガラスおよびガラスセラミックは、対応する出発ガラスを溶融し、続いて、制御された核生成および結晶化のために熱処理することによって調製した。
TNおよびtN 核生成のために使用した温度および時間
Tk1およびtk1 メタケイ酸リチウムの結晶化のために使用した温度
および時間
Tk2およびtk2 二ケイ酸リチウムおよびアパタイトの結晶化のために
使用した温度および時間。
Claims (20)
- 主結晶相として二ケイ酸リチウム、およびさらなる結晶相としてアパタイトを含み、3.0〜7.0、特に3.5〜6.0重量%のK2Oを含む二ケイ酸リチウムアパタイトガラスセラミック。
- 60.0〜74.0、特に63.0〜71.0重量%のSiO2を含む、請求項1に記載のガラスセラミック。
- 10.0〜20.0、特に11.0〜19.0重量%のLi2Oを含む、請求項1または2に記載のガラスセラミック。
- 3.0〜7.0、特に4.0〜6.0重量%のP2O5を含有する、請求項1から3のいずれか一項に記載のガラスセラミック。
- 0〜5.0、特に0〜4.5重量%のCaO、および0〜4.0、特に0〜3.5重量%のSrOを含み、CaOおよびSrOを組み合せた量が、1.0〜6.0、特に1.5〜5.5重量%である、請求項1から4のいずれか一項に記載のガラスセラミック。
- 0.1〜1.0、特に0.2〜0.5重量%のFを含む、請求項1から5のいずれか一項に記載のガラスセラミック。
- 2.0〜7.0、特に3.0〜6.0重量%の、三価元素の酸化物および/またはさらなる四価元素の酸化物を含む、請求項1から6のいずれか一項に記載のガラスセラミック。
- 前記三価元素の酸化物が、Al2O3、Y2O3、La2O3、およびそれらの混合物の群から選択され、特にAl2O3である、請求項7に記載のガラスセラミック。
- 前記さらなる四価元素の酸化物が、ZrO2、TiO2、GeO2、およびそれらの混合物の群から選択される、請求項7または8に記載のガラスセラミック。
- 下記の成分:
成分 重量%
SiO2 60.0〜74.0
Li2O 10.0〜20.0
P2O5 3.0〜7.0
K2O 3.0〜7.0
CaO 0〜5.0
SrO 0〜4.0
F 0.1〜1.0
三価元素の酸化物
および/またはさらに
四価元素の酸化物 2.0〜7.0
の少なくとも1種、好ましくは全てを含み、
CaO+SrOが 1.0〜6.0である、
請求項1から9のいずれか一項に記載のガラスセラミック。 - アパタイトとしてフルオロアパタイトを含む、請求項1から10のいずれか一項に記載のガラスセラミック。
- 20体積%を超える、好ましくは25体積%を超える、特に好ましくは30体積%を超える二ケイ酸リチウム結晶を含む、請求項1から11のいずれか一項に記載のガラスセラミック。
- 請求項1から10のいずれか一項に記載のガラスセラミックの前記成分を含む出発ガラス。
- メタケイ酸リチウム、二ケイ酸リチウムおよび/またはアパタイトの結晶化のための核を含む、請求項13に記載の出発ガラス。
- 請求項1から10のいずれか一項に記載のガラスセラミックの前記成分を含むメタケイ酸リチウムガラスセラミック。
- 粉末、粒状物、ブランクまたは歯科修復物の形態で存在する、請求項1から12のいずれか一項に記載のガラスセラミック、請求項13または14に記載の出発ガラス、または請求項15に記載のメタケイ酸リチウムガラスセラミック。
- 請求項1から12のいずれか一項に記載のガラスセラミックの調製方法であって、請求項13または14に記載の出発ガラス、または請求項15に記載のメタケイ酸リチウムガラスセラミックが、430〜1000℃の範囲における少なくとも1回の熱処理に掛けられる方法。
- (a)前記出発ガラスが、核を有する出発ガラスを形成するため、温度430〜550℃で熱処理に掛けられ、そして
(b)前記核を有する出発ガラスが、前記二ケイ酸リチウムアパタイトガラスセラミックを形成するため、温度750〜950℃で熱処理に掛けられる、
請求項17に記載の方法。 - 歯科材料としての、特に歯科修復物を被覆するための、好ましくは歯科修復物を調製するための、請求項1から12もしくは請求項16のいずれか一項に記載のガラスセラミック、請求項13、14もしくは16に記載の出発ガラス、または請求項15もしくは16に記載のメタケイ酸リチウムガラスセラミックの使用。
- 請求項19に記載の歯科修復物を調製するための使用であって、前記ガラスセラミック、前記出発ガラスまたは前記メタケイ酸リチウムガラスセラミックが、プレスまたは機械加工によって、所望の歯科修復物の形状、特にブリッジ、インレー、アンレー、ベニア、アバットメント、部分的クラウン、クラウンまたはシェルの形状を与えられる使用。
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CN104379113B (zh) | 2018-03-02 |
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KR20150013225A (ko) | 2015-02-04 |
US20160257607A1 (en) | 2016-09-08 |
US9764982B2 (en) | 2017-09-19 |
WO2013164256A1 (de) | 2013-11-07 |
KR101668940B1 (ko) | 2016-10-24 |
HK1202438A1 (en) | 2015-10-02 |
US20150087493A1 (en) | 2015-03-26 |
CN104379113A (zh) | 2015-02-25 |
US9371249B2 (en) | 2016-06-21 |
EP2844213B1 (de) | 2019-12-04 |
EP2844213A1 (de) | 2015-03-11 |
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