CN1442380A - Dental micro crystal glass and its preparation method and use - Google Patents
Dental micro crystal glass and its preparation method and use Download PDFInfo
- Publication number
- CN1442380A CN1442380A CN 03118953 CN03118953A CN1442380A CN 1442380 A CN1442380 A CN 1442380A CN 03118953 CN03118953 CN 03118953 CN 03118953 A CN03118953 A CN 03118953A CN 1442380 A CN1442380 A CN 1442380A
- Authority
- CN
- China
- Prior art keywords
- glass
- dental
- preparation
- ceramic
- ceramics
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011521 glass Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims description 6
- 239000013081 microcrystal Substances 0.000 title 1
- 238000002425 crystallisation Methods 0.000 claims abstract description 9
- 230000008025 crystallization Effects 0.000 claims abstract description 9
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims abstract description 7
- 238000010899 nucleation Methods 0.000 claims abstract description 7
- 230000006911 nucleation Effects 0.000 claims abstract description 7
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 6
- 230000007547 defect Effects 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims abstract description 4
- 239000002241 glass-ceramic Substances 0.000 claims abstract 9
- 229910052907 leucite Inorganic materials 0.000 claims abstract 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract 3
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims 1
- 238000009694 cold isostatic pressing Methods 0.000 claims 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000013078 crystal Substances 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000011351 dental ceramic Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- 239000002223 garnet Substances 0.000 description 9
- 238000005498 polishing Methods 0.000 description 7
- 238000010792 warming Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 3
- 239000002932 luster Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000000498 ball milling Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000006015 fusion formed glass Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 239000012745 toughening agent Substances 0.000 description 1
- 230000008733 trauma Effects 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
- 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
-
- 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
- C03C10/0036—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 a divalent metal oxide as main constituents
- C03C10/0045—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 a divalent metal oxide as main constituents containing SiO2, Al2O3 and MgO 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
- C03C4/00—Compositions for glass with special properties
- C03C4/0007—Compositions for glass with special properties for biologically-compatible glass
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Glass Compositions (AREA)
- Dental Preparations (AREA)
Abstract
本发明涉及一种牙科微晶玻璃，包括15～25％的K2O、20～30％的Al2O3、50～60％的SiO2、1～6％的CaO、0.1～0.8％的MgO、0.04～0.1％的Fe2O3、0.04～0.1％的TiO2。本发明还提供了上述微晶玻璃的制备方法，将上述原料混合，加入研磨溶剂研磨，烘干，熔融形成玻璃后，冷等静压成型，再经过成核和晶化热处理，即得到所需微晶玻璃。本发明在玻璃中有控的形成白榴石晶体而得到的牙科微晶玻璃，强度高、色泽自然，其结晶相全部是从一个均匀的玻璃基质中通过特殊的生产工艺生长产生的，比现有的天然白榴石增强的牙科陶瓷具有更优异的理化性能，可用作修复体修复牙体缺损。本发明所用原料易得，生产工艺简单，极具开发和应用前景。The invention relates to a dental glass-ceramic, which comprises 15-25% K 2 O, 20-30% Al 2 O 3 , 50-60% SiO 2 , 1-6% CaO, 0.1-0.8% MgO, 0.04-0.1% Fe 2 O 3 , 0.04-0.1% TiO 2 . The present invention also provides a method for preparing the above-mentioned glass-ceramics. The above-mentioned raw materials are mixed, ground with a grinding solvent, dried, melted to form glass, cold isostatically pressed, and then subjected to nucleation and crystallization heat treatment to obtain the required Glass-ceramic. Dental glass-ceramics obtained by controlled formation of leucite crystals in glass in the present invention has high strength and natural color, and its crystal phases are all grown from a uniform glass matrix through a special production process. Some natural leucite-enhanced dental ceramics have better physical and chemical properties and can be used as restorations to repair tooth defects. The raw materials used in the invention are easy to obtain, the production process is simple, and the invention has great development and application prospects.
Description
Technical field
The invention belongs to the stomatology technology field, particularly relate to a kind of dentistry devitrified glass and its production and use.
Background technology
Dental polishing belongs to hard brittle material,, when bearing interlock and accident trauma easy jackknifing (Hondrum So.Areview ofthe strength properties of dental ceramics.J Prosthet Dent in place at dummy, 1992,67 (6): 859.).Use inner toughener be one of main method that improves at present the dental polishing material (Wang Dalin. improve the research of dental polishing intensity. foreign medical science stomatology fascicle, 1995,22 (5): 276.).Natural white garnet has been used to improve the intensity and the color and luster (Holland W.Empress-material and clinical science.Ivoclar-Vivadent ReportNo.10,1994.) of dental polishing by more external companies.
The structure of devitrified glass, performance and production technique are different with traditional ceramics.The crystalline material of traditional ceramics material is introduced when the preparation ceramic components, and the crystallization phases in the devitrified glass all is to produce by special production technique growth from a uniform glass matrix.
Natural white garnet relatively is suitable for the repairing and treating of defect of teeth because of its distinctive physicochemical property, and domesticly there is no a large amount of natural white garnet ore deposits and can exploit utilization, strengthens with natural white garnet therefore that the technology of dental polishing is domestic does not see bibliographical information as yet.The physicochemical property of existing natural white garnet enhanced dental polishing has a certain distance with devitrified glass in theory.
Summary of the invention
The present invention provides a kind of dentistry devitrified glass and its production and use at the problem that above-mentioned prior art exists, gained dentistry devitrified glass is intensity height, color and luster nature not only, the repair materials that can be used as defect of teeth, and raw material is easy to get, method for making is simpler.
Technical scheme provided by the invention is: a kind of dentistry devitrified glass comprises 15～25% K
2O, 20～30% Al
2O
3, 50～60% SiO
2, 1～6% CaO, 0.1～0.8% MgO, 0.04～0.1% Fe
2O
3, 0.04～0.1% TiO
2, above percentage ratio is mass percent.
It is 40～60% white garnet crystallite and 60～40% glass matrix that above-mentioned dentistry devitrified glass contains mass percent, and the white garnet crystallite is distributed in glass matrix uniformly.
The present invention also provides the preparation method of above-mentioned devitrified glass, with K
2O, Al
2O
3, SiO
2, CaO, MgO, Fe
2O
3And TiO
2Mix, add abrasive solvents and grind, oven dry, after fusion formed glass, cold isostatic compaction passed through nucleation and crystallization and thermal treatment again, promptly obtains required devitrified glass.
Above-mentioned bake out temperature is 400～700 ℃, and the time is 1～12 hour; Cold isostatic pressure is 300～500MPa, and the time is 10～30 minutes; Melt temperature is 1550～1700 ℃, and nucleation temperature is 1000～1200 ℃, and crystallization temperature is 1400～1600 ℃, and the time respectively is 8～12 hours.
Above-mentioned abrasive solvents is the ethanol of 75～95% (volume ratios), and the granularity of grinding the back powder is controlled at below 4 microns.
The present invention has the formation white garnet crystal of control and the dentistry devitrified glass that obtains in glass, intensity height, color and luster nature, its crystallization phases all is to produce by special production technique growth from a uniform glass matrix, have more excellent physicochemical property than existing natural white garnet enhanced dental polishing, can be used as dummy and repair defect of teeth.The present invention is raw materials used to be easy to get (being commercially available starting material), and production technique is simple, has the development and application prospect.
Embodiment
Embodiment 1: get 20% K by mass percentage
2O, 25% Al
2O
3, 53.5% SiO
2, 1.2%CaO, 0.1% MgO, 0.1% Fe
2O
3, TiO O.1%
2Mixing adds ethanol said mixture is flooded, ball milling 24 hours, and oven dry is warming up to 1680 ℃, reduces to room temperature, grinds again.Made behind the right cylinder under 380MPa pressure isostatic cool pressing 20 minutes, and be warming up to 1100 ℃ of nucleation, be warming up to 1550 ℃ of crystallization again, reduce to room temperature and promptly get required precompressed dentistry devitrified glass.
Embodiment 2: get 15.2% K by mass percentage
2O, 21% Al
2O
3, 58% SiO
2, 5% CaO, 0.7% MgO, 0.05% Fe
2O
3, 0.05% TiO
2Mixing, add 75% ethanol ball milling to the granularity of mix powder below 4 microns; Drying is 5 hours under 600 ℃; Be warming up to 1600 ℃ of fusions 9 hours; Reduce to room temperature, made behind the desired shape under 400MPa pressure isostatic cool pressing 30 minutes; Be warming up to 1000 ℃ of nucleation 10 hours; Be warming up to 1550 ℃ of crystallization again 10 hours, and reduced to room temperature and promptly get required dentistry devitrified glass.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031189539A CN1192983C (en) | 2003-04-16 | 2003-04-16 | A kind of preparation method of dental glass-ceramics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031189539A CN1192983C (en) | 2003-04-16 | 2003-04-16 | A kind of preparation method of dental glass-ceramics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1442380A true CN1442380A (en) | 2003-09-17 |
| CN1192983C CN1192983C (en) | 2005-03-16 |
Family
ID=27797224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031189539A Expired - Fee Related CN1192983C (en) | 2003-04-16 | 2003-04-16 | A kind of preparation method of dental glass-ceramics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1192983C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424035C (en) * | 2004-12-28 | 2008-10-08 | 华南理工大学 | Dental ceramic material and preparation method thereof |
| CN101407375B (en) * | 2008-11-14 | 2010-12-08 | 安泰科技股份有限公司 | Material for repairing lithium-based ceramic oral cavity and preparation thereof |
| CN101951855A (en) * | 2008-08-13 | 2011-01-19 | 奥姆科公司 | Aesthetic orthodontic bracket and method of making same |
| CN101962287A (en) * | 2010-09-14 | 2011-02-02 | 石家庄铁道大学 | Processable aluminium oxide base composite ceramic material and preparation method thereof |
| CN105461352A (en) * | 2015-11-20 | 2016-04-06 | 武汉大学 | A preparing method of a dental ceramic composite material |
| CN117550810A (en) * | 2023-11-14 | 2024-02-13 | 河北美科微晶材料有限公司 | Photosensitive microcrystalline glass and production process thereof |
-
2003
- 2003-04-16 CN CNB031189539A patent/CN1192983C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424035C (en) * | 2004-12-28 | 2008-10-08 | 华南理工大学 | Dental ceramic material and preparation method thereof |
| CN101951855A (en) * | 2008-08-13 | 2011-01-19 | 奥姆科公司 | Aesthetic orthodontic bracket and method of making same |
| CN101951855B (en) * | 2008-08-13 | 2014-08-13 | 奥姆科公司 | Aesthetic orthodontic bracket and method of making same |
| CN101407375B (en) * | 2008-11-14 | 2010-12-08 | 安泰科技股份有限公司 | Material for repairing lithium-based ceramic oral cavity and preparation thereof |
| CN101962287A (en) * | 2010-09-14 | 2011-02-02 | 石家庄铁道大学 | Processable aluminium oxide base composite ceramic material and preparation method thereof |
| CN105461352A (en) * | 2015-11-20 | 2016-04-06 | 武汉大学 | A preparing method of a dental ceramic composite material |
| CN117550810A (en) * | 2023-11-14 | 2024-02-13 | 河北美科微晶材料有限公司 | Photosensitive microcrystalline glass and production process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1192983C (en) | 2005-03-16 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050316 Termination date: 20120416 |