CN110200709A - A kind of skeleton porcelain tooth veneer and preparation method thereof from standby tooth - Google Patents
A kind of skeleton porcelain tooth veneer and preparation method thereof from standby tooth Download PDFInfo
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- CN110200709A CN110200709A CN201910636928.1A CN201910636928A CN110200709A CN 110200709 A CN110200709 A CN 110200709A CN 201910636928 A CN201910636928 A CN 201910636928A CN 110200709 A CN110200709 A CN 110200709A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/20—Repairing attrition damage, e.g. facets
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- 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
- C03B19/063—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 by hot-pressing powders
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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
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/02—Surface treatment of glass, not in the form of fibres or filaments, by coating with 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
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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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
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
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Abstract
The invention discloses a kind of skeleton porcelain tooth veneer and preparation method thereof from standby tooth, method is the following steps are included: stamp, scanning, design, numerical control device processing cut the wax pattern of dentine form；Embedding forms the hollow mould of dentine form；Casting porcelain is put into hollow mould and carries out die casting by casting, and die casting finishes the skeleton porcelain to form dentine form；Upper facing porcelain mixes porcelain powder and dedicated liquid in the pasty state, is coated to formation veneer shape on skeleton porcelain, guarantees that thickness is consistent with design thickness, is sintered drying, polish, dyes glazing, obtain finished product.The present invention, tooth veneer are process using the two kinds of splicings of skeleton porcelain and facing porcelain, and thickness further decreases, it is most thin can be to 0.2mm；Thickness is thinning, tooth removing amount very little, reduces injury of teeth；Skeleton porcelain uses porcelain material using casting porcelain material, facing porcelain, combines the high intensity of casting porcelain and color, the fidelity of porcelain；Skeleton porcelain uses dentine form, and not easy to crack or fragmentation, stability is strong.
Description
Technical field
The present invention relates to Dental Erosion technical fields, and in particular to a kind of skeleton porcelain tooth veneer and its preparation from standby tooth
Method.
Background technique
The dental problems such as tooth veneer is uneven to den tal fluorosis, light Moderate tetracycline's tooth, slight teeth arrangement have excellent
Aesthstic improvement, and minimum is damaged to patient teeth, so the form for having more and more people to select veneer repairs tooth.
Tooth veneer is a kind of technology of tooth whitening reparation, and repairing is exactly to paste the material of one layer of normal creamy white of approximation in dyeing tooth surface
Material, to cover the color on tooth.
Existing porcelain veneer technology because of wax pattern hand-manipulated, the intensity of material and fabricating technology, production with a thickness of
0.78mm or more.If facing porcelain and the casting completely overlapped mode of porcelain cause thickness larger, it can be substantially change the standout of tooth, caused
Preceding prominent deformity.And the processing method of 3D printing resin there are colors untrue, care of patients underwent ceramic veneer it is excessively fragile the problems such as.
Existing tooth patch has the following problems:
(1) it needs to abrade tooth, it is big to injury of teeth；
(2) color is single untrue, and simulated effect is poor, and technique is coarse.
In view of this, being badly in need of improving the structure of existing tooth veneer, to avoid the damage to tooth, work is improved
Skill precision and fidelity.
Summary of the invention
The technical problem to be solved by the present invention is to the structures of existing tooth veneer to improve, to avoid to tooth
The problem of damage, raising craft precision and fidelity.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that providing a kind of skeleton porcelain from standby tooth
The preparation method of tooth veneer, comprising the following steps:
Stamp, using modelling composition, by the tooth mould for forming solid after patient's occlusion；
Scanning scans tooth mould using spatial digitizer, forms three-dimensional image, set on virtual three-dimensional image
Count 0.5mm veneer below；
Design, the thickness of tooth veneer, tooth are judged according to the three-dimensional image of patient and tooth body denture anatomy radian
Body denture anatomy does the ultrathin of 0.2~0.5mm compared with prominent person and the normal person of tooth denture, and radian, which is recessed, is discontented with person's increase system
Make thickness；
Numerical control device processing cuts out the wax pattern of dentine form according to the tooth cross cutting scanned using resin wax；
Casting porcelain is put into hollow mould and carries out die casting by embedding, and the angle of sprue-way and ring of encirclement pedestal is 45~60 ゜, adopts
Porcelain casting investment is cast with m type, embedding gouache ratio is 15:10, and wax pattern melts the hollow mould to form dentine form；
Casting porcelain is put into hollow mould and carries out die casting by casting, and sintering temperature rises to 850 DEG C by room temperature, keeps at least 60
Minute, die casting initial temperature is 700 DEG C, about rises to 930 DEG C after five minutes, is kept for 30 minutes, and die casting finishes, and forms tooth sheet
The skeleton porcelain of matter form；
Upper facing porcelain mixes porcelain powder and dedicated liquid in the pasty state, and is coated to formation veneer shape on skeleton porcelain, and guarantee
Thickness is consistent with design thickness；Then it is sintered, is sintered 450 DEG C of initial temperature, be up to 730 DEG C, maintain 2min, it is dry
It is taken out after 1min；
Polishing dyes glazing, obtains finished product.
In another preferred embodiment, after the completion of design thickness, the dedicated cutting was moulding of ACD/CAM is output data to
Machine is formed in a manner of cutting the dedicated cutting wax pattern of dentine form.
In another preferred embodiment, the casting porcelain is two silicon acid lithium glass ceramics, in various degree uniform
Translucent china block.
In another preferred embodiment, the facing porcelain is low melt nanometer fluor-apatite glass porcelain, porcelain powder packet
Silica, glycerol, butanediol, polyvinylpyridine alkanone are included, dedicated liquid includes water, propylene glycol and chloride.
In another preferred embodiment, when glazing, combination is mixed using coloring agent, powdered frit and glaze water.
In another preferred embodiment, it when polishing, is polished using devitrified glass milling tool facing porcelain, and
Guarantee that the thickness of tooth veneer is not less than minimum thickness.
The present invention provides a kind of skeleton porcelain tooth veneers from standby tooth, are made by the preparation method of above structure.
Compared with prior art, of the invention, it has the advantage that
1. tooth veneer is process using the two kinds of splicings of skeleton porcelain and facing porcelain, skeleton porcelain is using casting porcelain material, facing porcelain
Using porcelain material, the advantage perfect combination that the color of the high intensity and porcelain that will cast porcelain is good, fidelity is good, perfect porcelain patch
The problem of color in face is good, intensity difference, the advantage and disadvantage of the ultra-thin single fidelity difference of Ceramic veneer, ensure that tooth veneer intensity and
The fidelity of appearance；
2. skeleton porcelain uses dentine form, it is consistent with the intensity and structure of tooth itself, does not also allow in stress
Easy to crack or fragmentation, stability further enhance；
3. tooth veneer is process using the two kinds of splicings of skeleton porcelain and facing porcelain, it is different from pasting using veneer in the prior art
The structure of conjunction, therefore thickness can further decrease, normal thickness are less than 0.5mm, it is most thin can be to 0.2mm；
4. since thickness is further thinning, tooth, can be from standby tooth without abrading or removing amount very little, and tooth is prominent after bonding
Degree is slight, will not substantially change on external view, and user/patient foreign body sensation is slight, facilitates operation, reduces user/patient
Injury of teeth.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of skeleton porcelain of the invention；
Fig. 2 is structural schematic diagram of the invention.
Specific embodiment
The present invention provides a kind of skeleton porcelain tooth veneers and preparation method thereof from standby tooth, with reference to the accompanying drawings of the specification
The present invention is described in detail with specific embodiment.
As depicted in figs. 1 and 2, the preparation method of a kind of skeleton porcelain tooth veneer from standby tooth provided by the invention, including
Following steps:
Stamp, using modelling composition, by the tooth mould for forming solid after patient's occlusion；
Scanning scans tooth mould using spatial digitizer, forms three-dimensional image, set on virtual three-dimensional image
Count 0.5mm veneer below；Scanning imagery is closer to truth, and simulation effect is true to nature, and accuracy is higher；
Design, the thickness of tooth veneer, tooth are judged according to the three-dimensional image of patient and tooth body denture anatomy radian
Body denture anatomy does the ultrathin of 0.2~0.5mm compared with prominent person and the normal person of tooth denture, and radian, which is recessed, is discontented with person's increase system
Make thickness；Tooth veneer needs to guarantee that the lateral surface of tooth is concordant, if therefore teeth arrangement it is uneven, the medial surface of tooth veneer in order to
Tooth fitting, the thickness of each section is inconsistent, can suitably increase thickness；
Numerical control device processing cuts out the wax pattern of dentine form according to the tooth cross cutting scanned using resin wax；
Casting porcelain is put into hollow mould and carries out die casting by embedding, and the angle of sprue-way and ring of encirclement pedestal is 45~60 ゜, adopts
Porcelain casting investment is cast with m type, embedding gouache ratio is 15:10, and wax pattern melts the hollow mould to form dentine form；
Casting porcelain is put into hollow mould and carries out die casting by casting, and sintering temperature rises to 850 DEG C by room temperature, keeps at least 60
Minute, die casting initial temperature is 700 DEG C, about rises to 930 DEG C after five minutes, is kept for 30 minutes, and die casting finishes, and forms tooth sheet
The skeleton porcelain 10 of matter form；
Upper facing porcelain 20 mixes porcelain powder and dedicated liquid in the pasty state, and is coated to formation veneer shape on skeleton porcelain 10, and
Guarantee that thickness is consistent with design thickness；Then it is sintered, is sintered 450 DEG C of initial temperature, be up to 730 DEG C, maintain 2min, do
It is taken out after dry 1min；
Polishing dyes glazing, obtains finished product.
In the above-mentioned embedding the step of, porcelain casting investment is cast using m type, forms the dentine shape of the correspondence tooth with patient
The consistent hollow mould of state, can be rationally designed, specific aim is stronger according to different dental.Every thread form state of each patient is substantially
It is all M type, but concrete shape is all different, height and point slotting degree are different, are designed according to tooth body size and patient age.Pass through casting
After making step, the skeleton porcelain that thus hollow mould obtains can provide excellent support power for final tooth veneer, and each tooth can
With the skeleton porcelain for being best suitable for own form.Relative to the structure for using whole veneer in traditional technology, specific aim and flexibility
It is stronger, and further improve the fastness of tooth veneer entirety.
The present invention is pasted on the lateral surface of tooth, is made a concrete analysis of according to specific case.If patient's denture is neat, no
It needs to grind one's teeth in sleep, it is only necessary to it will polish on the inside of tooth veneer, it is Nian Jie with the fitting of tooth lateral surface.If patient's denture is neat
It is poor to spend, then can also abrade part tooth as needed, after guaranteeing tooth veneer fitting bonding, has smooth appearance, guarantees beauty
Sight degree and comfort level.
In a preferred embodiment, after the completion of design thickness, the dedicated cutting was moulding machine of ACD/CAM is output data to, with
The mode of the dedicated cutting wax pattern of cutting dentine form forms.It using the cutter, is automatically brought into operation using digitlization, cutting essence
It is quasi-.
In a preferred embodiment, casting porcelain is two silicon acid lithium glass ceramics, is different degrees of uniform translucent china block,
The warp resistance intensity of this porcelain block is 400MPa, is the highest die casting porcelain block of intensity.
In a preferred embodiment, facing porcelain 20 is low melt nanometer fluor-apatite glass porcelain, and porcelain powder includes titanium dioxide
Silicon, glycerol, butanediol, polyvinylpyridine alkanone, dedicated liquid include water, propylene glycol and chloride.Low melt nanometer fluorine phosphorus
Lime stone glass porcelain is similar to the structure of natural teeth, has adjustable transparency, brightness and opalescence effect in the production process
Fruit, shape and colour stability with high stability, facilitates the adjusting of subsequent color, is suitble to dyeing glazing.Using porcelain powder and
Dedicated liquid forms paste, and convenient adjustment shape as needed is filled and covers to the skeleton porcelain 10 of dentine form.
In a preferred embodiment, when glazing, combination is mixed using coloring agent, powdered frit and glaze water.Dressing agent can root
According to needing to adjust, until being matched with color of teeth.
In a preferred embodiment, it when polishing, is polished using devitrified glass milling tool facing porcelain 20, and guarantee
The thickness of tooth veneer is not less than minimum thickness.The edge processing, shape and thickness polished for adjusting tooth veneer.
The present invention also provides a kind of skeleton porcelain tooth veneers from standby tooth, are made by above-mentioned preparation method.
Tooth is divided into corona, neck and root of the tooth three parts, from outside to inside again be divided into enamel (enamel), dentine (as
Dentine), dental pulp (neural gland) etc..Dentine is used to keep internal dental pulp, plays a supporting role.External enamel is for subtracting
It rubs caused by few foreign object, prevents foreign object from causing wound or stimulation to tooth.
The present invention has the advantage that
1. tooth veneer is process using the two kinds of splicings of skeleton porcelain and facing porcelain, skeleton porcelain is using casting porcelain material, facing porcelain
Using porcelain material, the advantage perfect combination that the color of the high intensity and porcelain that will cast porcelain is good, fidelity is good, perfect porcelain patch
The problem of color in face is good, intensity difference, the advantage and disadvantage of the ultra-thin single fidelity difference of Ceramic veneer, ensure that tooth veneer intensity and
The fidelity of appearance；
2. skeleton porcelain uses dentine form, it is consistent with the intensity and structure of tooth itself, does not also allow in stress
Easy to crack or fragmentation, stability further enhance；
3. tooth veneer is process using the two kinds of splicings of skeleton porcelain and facing porcelain, it is different from pasting using veneer in the prior art
The structure of conjunction, therefore thickness can further decrease, normal thickness are less than 0.5mm, it is most thin can be to 0.2mm；
4. since thickness is further thinning, tooth, can be from standby tooth without abrading or removing amount very little, and tooth is prominent after bonding
Degree is slight, will not substantially change on external view, and user/patient foreign body sensation is slight, facilitates operation, reduces user/patient
Injury of teeth.
The invention is not limited to above-mentioned preferred forms, and anyone should learn that is made under the inspiration of the present invention
Structure change, the technical schemes that are same or similar to the present invention are fallen within the scope of protection of the present invention.
Claims (7)
1. a kind of preparation method of the skeleton porcelain tooth veneer from standby tooth, which comprises the following steps:
Stamp, using modelling composition, by the tooth mould for forming solid after patient's occlusion；
Scanning scans tooth mould using spatial digitizer, forms three-dimensional image, design on virtual three-dimensional image
0.5mm veneer below；
Design, the thickness of tooth veneer, tooth body tooth are judged according to the three-dimensional image of patient and tooth body denture anatomy radian
Column anatomy does the ultrathin of 0.2~0.5mm compared with prominent person and the normal person of tooth denture, and it is thick that the discontented person of radian recess increases production
Degree；
Numerical control device processing cuts out the wax pattern of dentine form according to the tooth cross cutting scanned using resin wax；
Casting porcelain is put into hollow mould and carries out die casting by embedding, and the angle of sprue-way and ring of encirclement pedestal is 45~60 ゜, using m type
Porcelain casting investment is cast, embedding gouache ratio is 15:10, and wax pattern melts the hollow mould to form dentine form；
Casting porcelain is put into hollow mould and carries out die casting by casting, and sintering temperature rises to 850 DEG C by room temperature, is kept at least 60 minutes,
Die casting initial temperature is 700 DEG C, about rises to 930 DEG C after five minutes, is kept for 30 minutes, and die casting finishes, and forms dentine form
Skeleton porcelain；
Upper facing porcelain mixes porcelain powder and dedicated liquid in the pasty state, and is coated to formation veneer shape on skeleton porcelain, and guarantee thickness
It is consistent with design thickness；Then it is sintered, is sintered 450 DEG C of initial temperature, after being up to 730 DEG C, maintenance 2min, drying 1min
It takes out；
Polishing dyes glazing, obtains finished product.
2. preparation method according to claim 1, which is characterized in that after the completion of design thickness, output data to ACD/CAM
Dedicated cutting was moulding machine is formed in a manner of cutting the dedicated cutting wax pattern of dentine form.
3. preparation method according to claim 1, which is characterized in that the casting porcelain is two silicon acid lithium glass ceramics, for not
With the uniform translucent china block of degree.
4. preparation method according to claim 1, which is characterized in that the facing porcelain is low melt nanometer fluor-apatite glass
Glass porcelain, porcelain powder include silica, glycerol, butanediol, polyvinylpyridine alkanone, dedicated liquid include water, propylene glycol and
Chloride.
5. preparation method according to claim 1, which is characterized in that when glazing, mixed using coloring agent, powdered frit and glaze water
Into combination.
6. preparation method according to claim 1, which is characterized in that when polishing, ground to facing porcelain using devitrified glass
Tool is polished, and guarantees the thickness of tooth veneer not less than minimum thickness.
7. a kind of skeleton porcelain tooth veneer from standby tooth, which is characterized in that as described in 1~6 any one of the claims
Preparation method is made.
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| CN201910636928.1A CN110200709B (en) | 2019-07-15 | 2019-07-15 | Framework porcelain tooth veneer free of tooth preparation and preparation method thereof |
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| CN201910636928.1A CN110200709B (en) | 2019-07-15 | 2019-07-15 | Framework porcelain tooth veneer free of tooth preparation and preparation method thereof |
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| CN110200709B CN110200709B (en) | 2021-12-14 |
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Cited By (3)
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| CN112430074A (en) * | 2020-11-13 | 2021-03-02 | 北京联袂义齿技术有限公司 | Method for manufacturing porcelain veneers |
| CN113402302A (en) * | 2021-07-08 | 2021-09-17 | 上海森艺医疗科技有限公司 | Dyeing material, preparation method thereof and application thereof to zirconium dioxide all-ceramic tooth |
| CN114948282A (en) * | 2022-05-13 | 2022-08-30 | 珠海云旎医疗科技有限公司 | Method for manufacturing porcelain veneer |
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| CN112430074A (en) * | 2020-11-13 | 2021-03-02 | 北京联袂义齿技术有限公司 | Method for manufacturing porcelain veneers |
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| CN113402302A (en) * | 2021-07-08 | 2021-09-17 | 上海森艺医疗科技有限公司 | Dyeing material, preparation method thereof and application thereof to zirconium dioxide all-ceramic tooth |
| CN114948282A (en) * | 2022-05-13 | 2022-08-30 | 珠海云旎医疗科技有限公司 | Method for manufacturing porcelain veneer |
| CN114948282B (en) * | 2022-05-13 | 2024-03-08 | 珠海云旎医疗科技有限公司 | Porcelain facing manufacturing method |
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