CN1864647A

CN1864647A - Method for producing completely ceramic structures in the field of dentistry

Info

Publication number: CN1864647A
Application number: CNA2006100047499A
Authority: CN
Inventors: 斯特凡·沃尔茨
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-01-16
Filing date: 1999-01-14
Publication date: 2006-11-22
Also published as: DE19801530C1

Abstract

A method for producing entirely ceramic inlays for dental implants or superstructures is disclosed, wherein the intirely ceramic inlays is obtained by producing bridges composed of spinel, alumina, zirconia or the kind. The method involves placing a foil with a slip on a stump of a working model. The slip is burnt off from the foil after removal from the working model. Alternatively the stump can be coated with a separating agent which is liquid at temp. above 45 degrees and has the consistency of lipstick at room temp. The separation medium has a slip and the material is burnt off after separation from the model.

Description

Make the method for the full porcelain tooth tooth parts in the dentistry

Patent application of the present invention is that application number is 99802177.6, the applying date is on January 14th, 1999, denomination of invention for " be used for making dentistry full ceramic inlay, crown, bridge work, part bridge work, be used for the method for implant or superstructure support " the dividing an application of Chinese invention patent application.

Technical field

The present invention relates to be used for making dentistry full ceramic inlay, crown, bridge work, part bridge work, be used for the method for the framework of implant or superstructure.

Background technology

Method by the support of known a kind of inlay, crown and the bridge work that is used for making dentistry of WO97/35531.For example make at this method medium-height trestle by aluminium oxide, wherein on the end of work mould, put a thin film, coat by respective material on the thin film that puts, for example the glaze of aluminium oxide composition, then thin film is taken off from the work mould, and with the glaze roasting on it.The support of little hat is burnt and obtained to shrinkable film when pottery burns.Usually carry out the infiltration of small cap with the nature of glass then.Follow structure at the enterprising insert pottery of making like this that works normal of small cap.

Artificial tooth by this method manufacturing does not definitely have metal, is bio-compatible therefore, and reaches the intensity level of metal composite ceramal.Therefore owing to easily manufactured and Master Cost can provide valuable artificial tooth for masses less.

Summary of the invention

Although in this way with compare workload by the known method of EP-A-02241384 and save 70-80% haply, the shortening once more according to the present invention still can reach each independent working portion reaches the improvement of quality thus.

For this reason, by the invention provides a kind of so complete ceramic inlay of support manufacturing, crown, bridge work, part bridge work of in dentistry, forming by spinelle, aluminium oxide, zirconium oxide or similar material, the method that is used for the framework of implant or superstructure by manufacturing, wherein: on the end of work mould, coat separating agent, it is a liquid when the temperature that surpasses 45 ℃, and when room temperature, has a same viscosity of lip pomade, the separating agent that is coated with is up established glaze, after the work mould is thrown off with this material calcination; Blank forming soaks into glass after the blank roasting of particularly little cap shaped.

Description of drawings

By means of accompanying drawing to being explained by step of the present invention.In the accompanying drawing:

Fig. 1 applies the device of glaze on the thin film that puts;

Fig. 2 can also apply the Digit Control Machine Tool of insert pottery except glaze;

Fig. 3 is used for fast and non-wrinklely thin film being enclosed within the device on the single end;

Fig. 4 is used for applying the top view cutaway view of the device of glaze or other potteries;

Fig. 5 is used for the base of support between infiltration stage;

Fig. 6 is used to soak into the device of support of the band glass of presintering.

The specific embodiment

The coating of glaze is carried out with brush in known method up to now.This causes because glaze drips from thin film and causes material unaccounted-for (MUF).Before the glaze roasting, it must be dry slightly on thin film.This guarantees by stop the corresponding time in air up to now.

Therefore an idea of the present invention is, accelerates known method and does not cause material unaccounted-for (MUF), and this does more detailed explanation by means of Fig. 1 below.

Motor 1 driving shaft 2, and can be adjusted to the rotating speed that about per minute 1 changes.On the end of axle 2, fix an end 3 of Gypsum Fibrosum end of normally working mould with bonding wax 4.Should be noted that when inserting bonding wax 4 install end concentric that as well as possiblely this makes the coating of glaze easier with respect to the rotation axis of axle with terminal 3.

Shrink-fit one thin film 6 on 3 the goods endways.In order to realize non-wrinkle shrink-fit, thin film is suitable for ground shrink-fit as the back illustrates by means of Fig. 3.

By means of instrument 5, for example brush is coated in glaze on the thin film 6.If the coating unit shown in employing Fig. 4 is beneficial especially.

Apply glaze during and/or make the glaze drying with the gas that is heated to above environment temperature later on.Be suitable for using an Electric blower 7 that its outlet air temperature is adjustable for this reason.25 ℃ prove suitable to the highest 40 ℃ air themperature during applying glaze.

Accelerate dry run and can make the glaze material dry equably with hot-air glazing by sufflation.This is to the favourable effect of organizing of the ceramic material of roasting.

After the glaze drying, thin film 6 must take off from terminal 3.The Electric blower temperature is brought up to 80 °-120 ℃ for this reason, and this causes the fusing of the separate layer between the goods of thin film 6 and terminal 3.Thereby guarantee that thin film easily takes off.

Then roasting thin film 6 is together with position glaze thereon, and at this moment the plastic material of thin film does not stay residue ground to burn.So-called infiltration and the normal structure that can carry out later the insert pottery of processing at baked small cap.It can also be seen that from above-mentioned explanation this method can be integrated in the automated process that the back by Fig. 2 will illustrate without difficulty.

The motor of expression one CNC milling machine in Fig. 2, it drives axle 2 rotations.Fix the end 3 of a work mould on the end of axle, it has the shape goods 3a consistent with patient's tooth residual fraction or implant.Terminal 3 are suitable for being fixed on the axle 2 with bonding wax 4, and the shape to a certain degree between axle 2 ends and terminal 3 is identical here can be useful.Non-wrinkle ground shrink-fit one shrinkable film 6 on goods.Replace thin film also can apply lip pomade shape separating agent.But only press the film process narration for following for simplicity the present invention.

The first step as numerical control method at first scans and the digital surface profile that is enclosed within the thin film on the object of storing.Just as this that use always on modern Digit Control Machine Tool carries out by means of laser instrument 8, but also can scan with mechanical system.Then the coating unit 9 by means of a similar burette that is shown specifically in Fig. 4 carries out the coating of glaze.Here export most advanced and sophisticated 9a and move on the thin film of rotation with very little distance, the most advanced and sophisticated 9a of its middle outlet is digital control by the surface profile numerical value of storing in advance to the distance of film surface.The rotating speed of axle 2 and the effusive speed of most advanced and sophisticated 9a place glaze are coordinated in this wise mutually, make to guarantee that material flows on the film surface from most advanced and sophisticated 9a continuously.Just almost had desirable wall thickness when this station by this measure small cap.

Carry out milling of excess stock as next work step by numerical control milling head 11 with milling cutter 10.Though mill out profile and stale by means of CNC milling machine in dentistry, this is basically by milling out realization by whole block material in the prior art.And the coating amount to be milled of the glaze by control is arranged has reduced to minimum degree in the present invention, and this can accelerate work widely.

Take off above it through the small cap 12 that is positioned on the goods 3a after the drying of short time at glaze, sintering is also pressed the known method infiltration, thereby reaches necessary strength.

Secondly above-mentioned by of the present invention, form by the datum controlled machine, can be used for making whole ceramic crown by the combined structure of the metering device of a present invention and a similar burette.Wan Gong small cap is being enclosed within on the goods 3a after the infiltration again for this reason.Before the space of being occupied by shrinkable film can be replaced by wax or similar material, thereby guaranteed fixing reliably.

Ceramic material-one is coated on the small cap as previous glaze is coated on the thin film, wherein applies burette and controls by the numerical value of digitized storage, and it is corresponding to the desirable anatomical shape of crown.Plug a tooth model of for example being made by wax in advance on goods 3a, its surface (numerical value) uses the method caching of having narrated for this reason.Certainly when this coated materials, should calculate the into contraction of pottery when roasting.

The coating of ceramic material can be undertaken by a plurality of burettes that contain different tone materials.Can adjust to desirable crown tone by corresponding coating and control.This control can be by squeeze pressure in the burette adjustment or the amount of feeding by piston carry out, and in 3-D graphic shows, set up by computer.

Importantly, thin film can rapidly and put non-wrinklely in pressing method of the present invention for next.

Can see a kind of basic structure of deep-drawing device by Fig. 3, it satisfies above-mentioned requirements.Thin film 13 is fixing by a tensioner 14.Because because the little heat of its quality scatters and disappears rapidly, (not shown) is provided with the storage thermal element to thin film 13 usually after heating.Holding in the cavity 15 at the pellet that is made of chamber wall 16 and to fill pellet with fixed object, is single terminal 3 here.Be provided with a filter 17 in the bottom that holds cavity 15, it prevents that pellet is drawn onto under the filter by vacuum.

The thin film of heating is placed on the seal boss 18 and deep-draw.At this moment it surrounds single terminal 3.As broad as long between the present invention thus much and the prior art.

But it is also inapplicable for the device that desirable precision is such.In said method, need extremely thin thin film on the one hand.Cover film thickness for single end in the glaze technology is 0.1mm or thinner; Be at most 0.6mm for flexible crown technology.This thin film is inevitable being punctured in common deep-drawing device.

By using by funnel 19 of the present invention, it on top can be provided with a seal boss 20 in the edge place, can prevent puncturing and reaching non-wrinkle coating on single end of thin film astoundingly, because funnel is directed to thin film on the end definitely when deep-draw, reaches thus and go up uniform material thickness endways.

May be when thin thin film because pellet produce another problem, pellet is that the cylindrical aluminium of about 0.5mm is formed by diameter usually.

Find now that diameter is 0.2 to 0.5mm, preferably the little copper ball of 0.3mm is suitable especially, because it does not punch thin film.

After the thin film shrink-fit with distal tip on thin film in the finite region to remove be useful.Small cap under the completion status of tooth is located immediately on the residual tooth thus, reduces the stress in the tooth structure thus.

Have the function of retention position by the space that thin film filled up in this method, this wishes in crown and bridge work technology, because this guarantees the outflow of cementing material.

Make inlay, part crown and be used for implant or during the framework of superstructure this position reservation function unnecessary, even wish, because this tooth replacement piece should directly contact with its part that matches.Therefore people mention bonding gluing here.But particularly do not wish gappedly in implanted prosthetics, because this may be the reason that implant is fallen to take off, because usually crown is connected with the implant screw, the appearance of moment of flexure can cause crown to rupture.

The beginning target is in development process of the present invention, replaces thin film with thin especially material, and it no longer has undesirable position retention property.The inventor is surprised to find especially now, and lip-stick common in the commerce as Labello (trade mark of Beiersdorf AG factory registration) is the most suitable.Material must heat for this reason, surpasses 45 ℃, is coated on the end, because it can form film as thin as cicada's wings.Because this thin film is because the little poor visibility of its thickness and/or help the painted of lip pomade for the reflection that improves laser beam.

Covered a skim like this on end after the cooling, it is not cracked applying the glaze period of the day from 11 p.m. to 1 a.m, and glaze is well attached to above it.This blank carries out sintering after taking the work mould away.At this moment liquefy again by separating agent of the present invention and at first absorbed as sponge, then when high sintering temperature, do not stay residue ground to burn by pottery.Reach desirable precision thus.

Therefore produced like this repairing product are suitable for bonding gummed best, and are particularly suitable for implanted prosthetics.

When making artificial teeth or the like, carry on as usual glaze form ceramic masses is coated on the object with brush is manual.This technology and artist's technology does not almost have any difference, and the artist is coated onto greasepaint on the painting canvas from palette with brush, and the dentist uses glass plate usually.Because glaze is made up of the mixture of ceramics and common water, water can evaporate from mixture, and glaze can't be used, because it becomes too crisp.Particularly the ratio at aluminium oxide glaze period of the day from 11 p.m. to 1 a.m water is a very crucial amount.In the ratio of water is not to obtain the tissue of difference during roasting under the best situation, thereby obtains low fracture strength.Because this is well-known for the dentist, he puts storage wet device, for example Shi small paper ball or the like on the glaze that is placed on the work glass plate.Imaginative power is hard-core in this.

But also there is such danger on the other hand, owing to the too many water of adding in glaze of cleaning of the brush that requires.This also has same negative consequence aspect final effect.

Constant liquid/ceramics ratio when the coating unit shown in Fig. 4 guarantees in work.

Coating unit is made up of an outer tube 21, and it is held in dentist's hands as brush in use.Put into an elasticity and manage 23 in outer tube 21, it is preferably made by silicone rubber, and its dress is irritated ceramic masses.Outer tube 21 and interior pipe 23 are tapered becomes a coating most advanced and sophisticated 24.Because the inner chamber of coating unit by top cover 25 sealings, can produce overvoltage by apply finger pressure at finger pressure opening 26 places, it makes glaze apply the outflow of most advanced and sophisticated 24 places.For can removal when the interior pipe that flattens is returned to the normal position formed negative pressure, an intake valve 27 can be set.

To apply the tip and can as fountain pen, slot or make brush types in order to adapt with at that time working condition.Most advanced and sophisticated form depends on the viscosity of glaze.

Because pipe 23 can push in the outer tube 21 in the elasticity, can mix at the maker of ceramic powders and pack into by glaze of the present invention in the pipe 23, there because mixing ratio is made a mistake when in dental laboratory, mixing.In order to obtain spendable glaze, only need incision of interior pipe two ends or otherwise are opened.

Comparing this structure with other devices that can imagine has such advantage, never needs machine components, as piston.

Reach the further quickening of method with device by Fig. 5 and 6.

Be placed on the platinum foil at support between infiltration stage up to now.The nonwetting platinum of glass of fusing.Because must work with excessive infiltration powder in principle, unnecessary glass flows on the platinum foil on the rack surface, and on support, form the glass foot there, it can only could be removed by grinding and/or sandblast in the fine work of effort, perhaps must could remove unnecessary glass part by heating once more.Also have such danger except considerable processing charges, support is damaged when this work.

Guarantee to remove fast and reliably unnecessary glass with device by Fig. 5.

Fig. 5 represents a base plate 28, and it makes rotational symmetric in the illustrated case, and this makes its manufacturing easier.Base plate 28 surfaces have the convex-concave surface structure of sawtooth profile 29 shapes in a zigzag.Any other concavo-convex profile also more or less is suitable for equally well.The zone of importantly, raising is compared not too big with support.Secondly base plate 28 has groove 30, and it is by bridge work support 31 bridge joints that are placed on above it.

Base plate 28 is made by a kind of porous material, and it can be by the glass moistening.Opposite with the prior art requirement in this, prior art is from non-wettable platinum foil.Filler commonly used in dentistry proves specially suitable material.But therefore any in principle ceramic material all can all be suitable for by the glass moistening.

Under the unnecessary glass flows in heating process on the bridge plate 31, drop in the groove 30 on the one hand, absorbed by porous surface on the other hand.Just in time the probability of dripping for the bridge plate that has a large amount of materials at the middle part is favourable, is connected because the glass that drips no longer includes with bridge plate.

The amount that needs the glass removed after having reduced thus.Because when mobile glass enters the base plate porous materials, form the mixture of glass and pottery, also hang over unnecessary glass and pure glassy phase on the support than having less intensity level.It can be removed with the method for machinery easily and promptly.

Can not damage at support when base plate takes off yet, because sawtooth shown in the figure is convenient to fracture from base plate, and not need king-sized power, if base plate is made up of filler and so on.

Schematically illustrate a ceramic roaster commonly used in Fig. 6, it is used in dentist's laboratory.The wall that passes stove 32 inserts one can that move, that be similar to burette from the outside coating unit 33, and it is suitable for being bearing in the universal ball joint 34.Coating unit is made up of the platinotron 35 of a band most advanced and sophisticated 36 in the illustrated case.Because platinotron 35 is bearing within the universal ball joint 34 movably, but apply most advanced and sophisticated 36 three-dimensional motions in stove 32.

Introduce by the manufacturing that is used for the support of bridge work of the present invention below.

At first make two small cap 12a and 12b by above-mentioned membrane process by ceramic mixture, they with one by same material, for example the bridge work intermediate link 40 made of aluminium oxide couples together, bridge work intermediate link 40 can be by hand, but also can make with machine, wherein the position of two small cap 12a and 12b matches with work mould size, and it is come out by a blank computer control milling that sinters in advance.Then with the support sintering.If the crown support of making like this soaks into by prior art, make a) the stove cooling constantly at this so, b) take out the crown support, c) adding powdered infiltration glass, and d) support that sprinkles glass dust reheats so that glass melting.Usually use by the known frit of EP-A-0030851, perhaps a kind of glass as soaking into glass with high lanthanum content.These work steps are relevant with the energy and the loss of time, and being taken as is reason of the present invention.

Therefore first work step is that support is stayed in the stove and do not cooled off, and preferably is placed on the base plate 28 by Fig. 5.

Soak into glass fusing automatically in stove 32 later at sintering during the sintering and/or just, insertion one Glass rod 37 platinotron 35 at this moment, it has just begun to become liquid at most advanced and sophisticated 36 places.By correspondingly advancing Glass rod 37 to give sufficient dosing probability, cover with soaking into glass fully until support.Impregnation process finishes after under about 1100 ℃ about 4 hours.This process can be observed by a unillustrated fireproof glass window.

Replace glass dust to adopt the Glass rod of making that such advantage is arranged, can abandonment cost with the making of expensive glass dust.

The original fusing of glass dust in platinotron is not without a doubt, because there is not capillary effect in the nonwetting platinum of liquid glass in platinotron.If therefore do not take special preventive measure, just glass flows out from platinotron simply.The melt chamber 38 of a this preventive measure shown in being, glass dust can melt in its inside be in the horizontal level of platinotron, and makes the unlikely outflow of glass.Then when the appropriate location of platinotron can by means of shown in air blowing bellows 39 make the glass dosing.

Next should also be noted that platinum and other suitable metals have the high capacity of heat transmission, and this makes need take unillustrated provision for thermal insulation, and platinotron 35 can be operated.

The insert pottery is coated on the bridge work support in another sintering circuit in infiltration and common follow-up machining end back.

Therefore reached the further breakthrough of making full ceramic restoration with the present invention, it is suitable for all prescriptions to pseudodont on the one hand, on the other hand because the high efficiency expense of this method is low especially.Just the present invention satisfies needs of society in this point.

Following method and apparatus is particularly preferred embodiment:

In dentistry by making the complete ceramic inlay of support manufacturing, crown, bridge work, the part bridge work of forming by spinelle, aluminium oxide, zirconium oxide or similar material, the method that is used for the framework of implant or superstructure,

Wherein overlap upper film on the end of work mould, this thin film that puts is provided with a kind of glaze, and will be positioned at the glaze roasting from the thin film that takes off of work mould,

Perhaps wherein coat separating agent on the end of work mould, it is a liquid when the temperature that surpasses 45 ℃, and has the same viscosity of lip pomade when room temperature, and the separating agent that is coated with is up established glaze, after the work mould is thrown off with this material calcination,

Wherein be fixed on the axle that is rotating at end during the glaze coating in both cases, and, soak into glass after the blank roasting of particularly little cap shaped at the blank that forms.

2. press the method for such scheme 1, it is characterized in that: end is fixed on the tip of CNC milling machine rotating shaft, make by scanning to the product surface profile, particularly this profile is stored by means of the scanning of laser beam, by the Data Control metering device of storing, it is coated in glaze on the thin film equably, then the glaze shape material of coating is milled into the thickness of regulation by means of the data of storing.

With the thin film deep-draw on single end, particularly be used in by the method in the method for such scheme 1, wherein end is fixed on the pellet bed, and apply vacuum by below endways the thin film cover of heating is gone up endways, and terminal holding within the cavity at a pellet surrounded by a funnel, and this funnel is directed to thin film on the end when deep-draw.

4. press the method for

such scheme

1 or 2, it is characterized in that: end is fixed on the rotating shaft with bonding wax.

5. press each the method for manufacturing crown of such scheme 1 to 4, it is characterized in that: the small cap of making is fixed on the end that is positioned on the rotating shaft, on small cap, plug a model corresponding to the crown anatomical shape of hope, scan this model and storage, take this model the thickness numerical control coated ceramic material of back away, small cap is added the ceramic material roasting become the completion crown by hope.

6. press the method for such scheme 5, it is characterized in that: small cap is fixed on the sawed-off end by means of bonding wax.

7. press each method of such scheme 1 to 4, it is characterized in that: glaze is during glaze applies and/or afterwards with the gas drying that is heated to above environment temperature.

8. press the method for such scheme 7, it is characterized in that: this gas is air.

9. press the method for such scheme 7 or 8, gas is heated to 25 to 40 ℃.

10. press each method of such scheme 1 to 9, it is characterized in that: between thin film and terminal goods, be coated with the last layer separate layer.

11. press the method for such scheme 10, it is characterized in that: after applying glaze, bring up to fusing point above separate layer in order to remove the film gas temperature.

12. press the method for such scheme 11, it is characterized in that: gas temperature is brought up to 80 ° to 120 ℃.

13. press each method of such scheme 1 to 12, it is characterized in that: coat separating agent when temperature surpasses 45 ℃, at this moment it forms uniform film.

14. press each method of such scheme 1 to 13, it is characterized in that: before coating that separating agent is painted.

15. press each method of such scheme 1 to 14, it is characterized in that: adopt lip-stick commonly used in the commerce.

Each that particularly press such scheme 1 to 4 and 7 to 15 made, the method for agglomerating support 16. soak into, and it is characterized in that: support during heating be placed on one porous, can be by on the base plate of liquid glass moistening, the unnecessary glass of its absorption.

17. in ceramics furnace, soak into each manufacturing of particularly pressing such scheme 1 to 4 and 7 to 16, the method for agglomerating support, it is characterized in that: support does not take out glass substance and preferentially melts at a coating unit that is arranged in ceramics furnace during sintering and/or afterwards from ceramics furnace, liquid glass is coated on the support by coating unit.

18. press the method for such scheme 17, it is characterized in that: glass substance provides as Glass rod.

19. the device of at least one method of such scheme 1 and 7 to 15 is pressed in realization, it is characterized in that being used for the adjustable motor (1) of rotating speed of axle (2), axle allows to be contained in the end of a work mould on its termination; The hair-dryer adjustable (7) with an air themperature.

20. realize pressing each the device of method of such scheme 2 to 15, CNC milling machine by a band laser scanning device (8) is formed, built-in at least one metering device that is used for glaze or ceramic material (9) that can control equally in milling machine wherein, metering device can move in the surface of object to be coated controllably as milling cutter.

21. realize pressing the device of the method for such scheme 16, it is characterized in that a base plate (28) of making by porous ceramic film material, it has the surface texture that is shaped on concavo-convex profile.

22. press the device of such scheme 21, it is characterized in that: base plate (28) is made by a kind of dental filler.

23. press the device of

such scheme

21 or 22, it is characterized in that: base plate (28) is rotational symmetric.

24. press each device of such scheme 21 to 23, it is characterized in that: base plate (28) has the concavo-convex profile of a zigzag (29).

25. press each device of such scheme 21 to 24, it is characterized in that: on base plate (28) surface, process a groove (30) at least.

26. the device of the method for such scheme 17 or 18 is pressed in realization, it is characterized in that a ceramics furnace (32), it is provided with a coating unit that can drive from the outside, similar burette (33), and it can do three-dimensional motion.

27. press the device of such scheme 26, it is characterized in that: coating unit (33) is bearing in the universal ball joint (34) on the wall of a ceramics furnace (32).

28. press the device of

such scheme

26 or 27, it is characterized in that: coating unit (33) have one at one end (36) be shrunk to the pipe (35) of tip.

29. press the device of such scheme 28, it is characterized in that: pipe (35) is made by platinum.

30. be used for particularly applying glaze by each method of such scheme 1 to 4, or be used for by the device of the method coated ceramic material of such scheme 5 particularly, it is characterized in that a inside puts into the outer tube (21) of elasticity pipe (23), its middle external tube (21) is provided with a finger pressure opening (26), and pipe (23) at one end dwindles into one gradually and applies most advanced and sophisticated (24) in the elasticity.Other end sealing is with atmospheric isolation.

31. press the device of such scheme 30, it is characterized in that: interior pipe is made by silicone rubber.

32. press the device of

such scheme

30 or 31, it is characterized in that: apply most advanced and sophisticated (24) and as fountain pen, slot.

33. press the device of

such scheme

30 or 31, it is characterized in that: it is such that brush is made in coating most advanced and sophisticated (24).

34. press each device of such scheme 30 to 33, it is characterized in that: it seals with a top cover (25).

35. press each device of such scheme 30 to 34, it is characterized in that: be provided with a ventilation valve (27) that is used for inner chamber.

36. the device of the method for such scheme 3 is pressed in realization, it is characterized in that a pellet holds chamber (15), wherein be provided with a funnel (19), its top edge is preferably established a seal boss (20), and is provided with one and holds the tensioner (14) that chamber (15) below vacuum vacuum generating device and is used for thin film (13) at pellet.

37. press the device of such scheme 36, it is characterized in that adorning that to irritate diameter be the pellet that 0.2 to 0.5mm little copper ball is formed.

The Reference numeral table

1 motor

2 axles

3 ends (Stumpf)

4 bonding waxes

5 coated tools

The film of 6 shrink-fit

7 Electric blowers

8 laser instrument

9 glaze coating units

9a exports most advanced and sophisticated

10 milling cutters

11 milling heads

12 small caps

Thin film before 13 shrink-fit

14 tensioners

15 pellets hold cavity

16 walls

17 filters

18 first seal bosses

19 funnels

20 second seal bosses

21 outer tubes

22 ceramic masses

Pipe in 23

24 apply the tip

25 top covers

26 finger pressure openings

27 intake valves

28 base plates

29 sawtooth profiles

30 grooves

31 bridge plates

32 ceramic stoves

33 moistening vitreous coating devices

34 universal ball joints

35 platinotrons

36 tips

37 Glass rods

38 melt chamber

39 air blowing bellows

40 bridge work intermediate links

Claims

In dentistry by making the complete ceramic inlay of support manufacturing, crown, bridge work, the part bridge work of forming by spinelle, aluminium oxide, zirconium oxide or similar material, the method that is used for the framework of implant or superstructure,

Wherein coat separating agent on the end of work mould, it is a liquid when the temperature that surpasses 45 ℃, and has the same viscosity of lip pomade when room temperature, and the separating agent that is coated with is up established glaze, after the work mould is thrown off with this material calcination,

Wherein, soak into glass after the blank roasting of particularly little cap shaped at the blank that forms.
2. by the method for claim 1, it is characterized in that: terminal being fixed on the axle that is rotating during glaze applies.
3. press the method for claim 2, it is characterized in that: end is fixed on the tip of CNC milling machine rotating shaft, by scanning to the product surface profile, particularly this profile is stored by means of the scanning of laser beam, by the Data Control metering device of storing, it is coated in glaze on the separating agent equably, then the glaze shape material of coating is milled into the thickness of regulation by means of the data of storing.
4. by claim 2 or 3 methods, it is characterized in that: end is fixed on the rotating shaft with bonding wax.
5. by each method of claim 1 to 4, it is characterized in that: when making crown, the small cap of making is fixed on the end that is positioned on the rotating shaft, on small cap, plug a model corresponding to the crown anatomical shape of hope, scan this model and storage, take this model the thickness numerical control coated ceramic material of back away, small cap is added the ceramic material roasting become the completion crown by hope.
6. by each method of claim 1 to 4, it is characterized in that: glaze is during glaze applies and/or afterwards with the gas drying that is heated to above environment temperature.
7. by the method for claim 6, it is characterized in that: this gas is air, and is heated to 25 to 40 ℃.
8. by each method of claim 1 to 7, it is characterized in that: before coating that separating agent is painted.
9. by each method of claim 1 to 8, it is characterized in that: adopt lip-stick commonly used in the commerce.
10. by the method for one of claim 1 to 4, it is characterized in that: in order to soak into agglomerating support, that support during heating is placed on is one porous, can be by on the base plate of liquid glass moistening, and it absorbs unnecessary glass.
11. method by one of claim 1 to 4 item, it is characterized in that: in order in ceramics furnace, to soak into agglomerating support, support does not take out from ceramics furnace, glass substance preferably melts at a coating unit that is arranged in ceramics furnace during sintering and/or afterwards, and liquid glass is coated on the support by coating unit.