CN1442380A - Dental micro crystal glass and its preparation method and use - Google Patents

Dental micro crystal glass and its preparation method and use Download PDF

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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
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China
Prior art keywords
dentistry
glass
devitrified
preparation
temperature
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Granted
Application number
CN 03118953
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Chinese (zh)
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CN1192983C (en
Inventor
张飚
钱法汤
吴伯麟
段兴龙
秦麟卿
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Wuhan University WHU
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Wuhan University WHU
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Publication date
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Priority to CNB031189539A priority Critical patent/CN1192983C/en
Publication of CN1442380A publication Critical patent/CN1442380A/en
Application granted granted Critical
Publication of CN1192983C publication Critical patent/CN1192983C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

Abstract

A microcrystal glass used for repairing tooth contains K2O (15-25%), Al2O3 (20-30 %), SiO2 (50-60%), CaO (1-6%), MgO (0.1-0.8%), Fe2O3 (0.04-0.1%) and TiO2 (0.04-0.1%), and is prepared through mixing said raw materials, grinding, baking, smelting, cold isostatic pressing for shaping, nucleating, crystallizing and heat treating. Its advantages are high strength, and excellent physical and chemical properties.

Description

A kind of dentistry devitrified glass and its production and use
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)

1. a 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.
2. dentistry devitrified glass according to claim 1 is characterized in that: contain mass percent and be 40～60% white garnet crystallite and 60～40% glass matrix, the white garnet crystallite is distributed in the glass matrix uniformly.
3. the preparation method of claim 1 or 2 described dentistry devitrified glasses: 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.
4. preparation method according to claim 3 is characterized in that: 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.
5. according to claim 3 or 4 described preparation methods, it is characterized in that: abrasive solvents is the ethanol of 75～95% (volume ratios), and the granularity of grinding the back powder is controlled at below 4 microns.
6. claim 1 or 2 described dentistry devitrified glasses are repaired defect of teeth as dummy.
CNB031189539A 2003-04-16 2003-04-16 Dental micro crystal glass and its preparation method and use Expired - Fee Related CN1192983C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB031189539A CN1192983C (en) 2003-04-16 2003-04-16 Dental micro crystal glass and its preparation method and use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB031189539A CN1192983C (en) 2003-04-16 2003-04-16 Dental micro crystal glass and its preparation method and use

Publications (2)

Publication Number Publication Date
CN1442380A true CN1442380A (en) 2003-09-17
CN1192983C CN1192983C (en) 2005-03-16

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Family Applications (1)

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CNB031189539A Expired - Fee Related CN1192983C (en) 2003-04-16 2003-04-16 Dental micro crystal glass and its preparation method and use

Country Status (1)

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CN (1) CN1192983C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
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 its preparation method
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

Cited By (7)

* Cited by examiner, † Cited by third party
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 its preparation method
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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Granted publication date: 20050316

Termination date: 20120416