CN106580493A - Preparation method of novel zirconium dioxide all-ceramic pile/nail for dental restoration - Google Patents
Preparation method of novel zirconium dioxide all-ceramic pile/nail for dental restoration Download PDFInfo
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- CN106580493A CN106580493A CN201611100437.8A CN201611100437A CN106580493A CN 106580493 A CN106580493 A CN 106580493A CN 201611100437 A CN201611100437 A CN 201611100437A CN 106580493 A CN106580493 A CN 106580493A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0003—Not used, see subgroups
- A61C8/0004—Consolidating natural teeth
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0012—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63472—Condensation polymers of aldehydes or ketones
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Veterinary Medicine (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Public Health (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Dental Preparations (AREA)
Abstract
The invention provides a preparation method of a novel zirconium dioxide all-ceramic pile/nail for dental restoration. The zirconium dioxide all-ceramic pile/nail has a cone-shaped head, a cylindrical middle section, and a flat cuboid like tail. The preparation method of the zirconium dioxide all-ceramic pile/nail includes the steps of: 1) taking zirconium dioxide powder and polyvinyl butyral PVB as the powder for pile/nail production, conducting proportional dosing, mixing, drying and granulation, and controlling the PVB at a dosage of enabling zirconium dioxide powder bonding; 2) preparing a pile/nail molding die with a fixed size; 3) conducting pressing according to a predetermined size to form zirconium rods with unified specification; and 4) subjecting the zirconium rods to sintering molding in a zirconium dioxide crystallization furnace. The method provided by the invention is a more precise and efficient zirconium dioxide all-ceramic pile/nail preparation method, and provides a high strength, anticorrosion and durable material for dental repair. The obtained zirconium dioxide all-ceramic pile/nail is convenient for manufacturing and use, and has excellent biocompatibility and aesthetic effect, thus being an ideal new dental restoration material.
Description
Technical field
The present invention relates to a kind of preparation method of medical devices, especially a kind of preparation method of dental prosthetic material, tool
Say it is a kind of new dental prosthetic zirconium dioxide full porcelain stake/nail preparation method body.
Background technology
Because of the Big dentinal body defect caused by dental caries or wound, because residual tooth tissue is weak, charges easily fracture
Or come off.Clinically the most frequently used solution is to strengthen maintenance using peg or fiber posts.Metal rivet nut is easy to by mouth
The liquid corrosion such as liquid in intracavity saliva, dentinal tubule, causes tooth body and dummy discoloration and retention pin to release then, causes
Repairing failure.Fiber posts intensity difference and tissue of tooth and resin material adhesive effect are indefinite, easily snap off, and fiber posts end
It is in cylinder to hold, and tweezers easily come off to cause when clamping and gulp down the malpraxis such as suction by mistake by mistake.
Zirconium dioxide All-ceramic material is one of dental prosthetic material emerging in recent years, and medical domain application increasingly
Extensively.Zirconium dioxide All-ceramic material has an outstanding visual effect, good biocompatibility and corrosion resistance, and enough
Many advantages, such as intensity, it is usually used in making the high-end dummies such as porcelain Guan Qiao, porcelain veneer, ceramic inlay.Simultaneously matched bonding
Material and technology have also become better and approaching perfection day by day, and the high cohesive force obtained Jing after adhesive special process can make zirconium dioxide all-ceramic prosthesis
Almost combine together with tissue of tooth, Micro blazed-grating is minimum, long-term effect is stable.The full porcelain of zirconium dioxide improves the crisp of traditional ceramicses
The shortcoming of property, low tensile strength and high shrinkage, bending strength reaches 400MPa, fracture toughness 2.75MPam1/2。
Compared with conventional metals nail reparation, the full porcelain stake/nail of zirconium dioxide has higher intensity, hardness, fatigue resistance, attractive in appearance
Property and good biocompatibility, the problems such as well solving the burn into that peg brings and become normal complexion allergy；And to nuclear-magnetism
Resonance is noiseless；It is good to x-ray resistance, it is easy to check positioning.Simultaneously the full porcelain dowel pin of zirconium dioxide compares fiber posts with more
High intensity, more preferably caking property and more preferable biocompatibility.
Almost how precisely efficiently to prepare without the producer of the full porcelain stake/nail of special production zirconium dioxide in the market
Meet the full porcelain stake/nail of zirconium dioxide of clinical demand, become the minimally invasive reparation of raising tooth body successfully crucial.
The content of the invention
The purpose of the present invention is easy to fall off for clinically Big dentinal body defect charges, using conventional metals nail or fine
Dimension stake is strengthened maintenance and be there are problems that, a kind of filling maintenance large area dental defect of invention design (containing incisal corner defect)
With the full porcelain stake/nail preparation method of zirconium dioxide.
The technical scheme is that：
The novel dental reparation full porcelain stake/nail preparation method of zirconium dioxide, the head of the full porcelain stake/nail of described zirconium dioxide
For cone, stage casing is cylinder, and afterbody is pancake cuboid, the preparation method bag of the full porcelain stake/nail of described zirconium dioxide
Include following steps：
1) using titanium dioxide zirconium powder and polyvinyl butyral resin PVB as the powder for stake/nail production, prepare in proportion,
Mixing, be dried, pelletize, the addition of polyvinyl butyral resin PVB bonds with allowing titanium dioxide zirconium powder；
2) the dowel pin mould of fixed dimension is prepared；
3) the zirconium rod to form unified specification is suppressed by preliminary dimension, it is contemplated that the contraction in zirconium dioxide porcelain block sintering process
Rate, by porcelain block size corresponding amplification is made；Normal contraction rate is 23% or so.
4) by zirconium rod sinter molding in zirconium dioxide crystal growing furnace；
5) centerless grinder precision optical machinery processes the zirconium dioxide bar of required diameter；
6) taper needed for hollow grinding machine processing stake/nail head；
7) surface grinding machine completes tail structure, in flat；
8) surface sand-blasting is carried out to the zirconium dioxide stake/nail of molding, increases surface roughness；
9) stake/nail face crack is detected under stereoscope, substandard products, packaged sterile is removed.
Preferably,
Described surface sand-blasting cleaning treatment referred under setting pressure with micron order sand grains sandblasting at least 5s, afterwards with anhydrous
EtOH Sonicate is respectively washed stake/nail surface at least 1min.
It is highly preferred that
Described surface sand-blasting cleaning treatment is referred under 0.25MPa pressure with 50 μm of Al203Sand grains sandblasting 10s, uses afterwards
Dehydrated alcohol ultrasound is respectively washed stake/nail surface 3min.
The described full porcelain stake of novel dental reparation zirconium dioxide/follow closely big for alternative metals nail or glass fiber post maintenance
Area dental defect or incisal corner defect.
Beneficial effects of the present invention：
1st, the full porcelain stake/nail preparation method of zirconium dioxide of the present invention be through basis and clinical many experiments obtain it is more excellent
The preparation method of change, becomes zirconium rod by the raw materials such as zirconium powder are prefabricated, then completes to sinter crystallization, machining, surface treatment etc. and be
Row program, precisely efficiently, from each side such as sorting, crystallization, machinings to the material of the full porcelain stake/nail of zirconium dioxide, intensity, outward
Shape is controlled, it is ensured that produce the full porcelain stake/nail of zirconium dioxide for meeting clinical needs.
2nd, the design of the full porcelain stake/nail of zirconium dioxide is after researching and analysing to existing dowel pin profile, to have carried out improvement optimization,
It is surface-treated, is more convenient clinical manipulation, bond effect is more outstanding, substantially plays the advantage of zirconium dioxide material,
And can the personalized full porcelain stake/nail of fabrication and processing as needed, to adapt to actual defect situation clinically complicated and changeable,
It is easy to popularize application in an all-round way.
3rd, the full porcelain stake/nail maintenance plombage of zirconium dioxide of the present invention is a kind of micro- in the treatment of Big dentinal body defect
The restorative procedure of wound, the methods such as hat reparation that compare can to greatest extent reduce tissue of tooth and damage, grind one's teeth in sleep less, retain more
Healthy tissue of tooth, the demand of tooth body minimally-invasive treatment is met well, it is easy to operate and economical, reduce patient assessment time
Number, has saved patient's treatment cost.
4th, the full porcelain stake/nail of zirconium dioxide of present invention research and development can be provided and be close to gold in Big dentinal body defect filling
The intensity and retention of category nail, dentin fine fisssure that peg brings is avoided that again and be easily corroded dyeing the problems such as；Same phase
Relatively fiber posts have bigger intensity, more preferably caking property and more preferable biocompatibility.The full porcelain dowel pin of zirconium dioxide is used
Repairing large area dental caries defect, it is to avoid large area dental defect hat repair after series of problems, it is to avoid vital tooth because
Obturator maintenance is not enough and carry out unnecessary root canal, have a extensive future.
Using the full porcelain stake/nail of zirconium dioxide of the present invention, using double cured resin cement RelyX Unicem or flowing
In resin-bonded implantation dentin, joint resin repairs Big dentinal body defect especially labial teeth incisal corner defect.By clinical observation
It was found that：Filled compared with direct resin fill group using the full porcelain stake of zirconium dioxide/nail maintenance, experimental group (the full porcelain stake of zirconium dioxide/
Nail maintenance filling) success rate (93.1%) is repaired far above matched group (57.1%).
Jing laboratorys micro-stretching is tested and shearing experiment research shows (table 1)：The full porcelain stake/nail of zirconium dioxide is obviously improved tooth
The adhesion strength of essence-resin boundary surface, adhesion strength level that is accessible or reaching peg.
The each group dentin of table 1-resin boundary surface adhesion strength value (MPa, Mean ± SD)
Using three-dimensional finite element analysis method, by setting up the full porcelain stake of zirconium dioxide/nail the big face of simulation maxillary incior is repaired
Product caries model, analyzes different repair modes (glass fiber post+resin fill and the full porcelain dowel pin+resin fill of zirconium dioxide)
Impact to maxillary incior tissue of tooth stress distribution, as a result shows that the full porcelain stake/nail system of zirconium dioxide is repaiied compared with glass fiber post
Be more suitable for maxillary incior again, the former bite stress concentrates on the tip of a root 1/3, and the bite stress of the latter to concentrate on neck portion thin
Weak-strong test.
Description of the drawings
Fig. 1 a are a kind of side views of the full porcelain pin structure of zirconium dioxide；(arithemetic unit is mm in figure)
Fig. 1 b are a kind of front views of the full porcelain pin structure of zirconium dioxide；(arithemetic unit is mm in figure)
Fig. 2 a are a kind of side views of the full porcelain pilework of zirconium dioxide；(arithemetic unit is mm in figure)
Fig. 2 b are a kind of front views of the full porcelain pilework of zirconium dioxide；(arithemetic unit is mm in figure)
Fig. 3 a are the side views of the full porcelain pilework of another kind of zirconium dioxide；(arithemetic unit is mm in figure)
Fig. 3 b are the front views of the full porcelain pilework of another kind of zirconium dioxide；(arithemetic unit is mm in figure)
Fig. 4 is that the full porcelain nail of zirconium dioxide of the present invention repairs labial teeth defect process schematic；
Fig. 5 is that labial teeth large defect clinical manipulation pictorial diagram is repaired in the full porcelain stake of zirconium dioxide of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is further illustrated.
Embodiment 1
The dental prosthetic of the present embodiment full porcelain stake/nail preparation method of zirconium dioxide, comprises the following steps：
1) using titanium dioxide zirconium powder and polyvinyl butyral resin PVB as the powder for stake/nail production, prepare in proportion,
Mixing, be dried, pelletize, the addition of polyvinyl butyral resin PVB bonds with allowing titanium dioxide zirconium powder；
2) the dowel pin mould of fixed dimension is prepared；
3) the zirconium rod to form unified specification is suppressed by preliminary dimension, it is contemplated that the contraction in zirconium dioxide porcelain block sintering process
Rate, by porcelain block size corresponding amplification is made；Normal contraction rate is 23% or so.
4) by zirconium rod sinter molding in zirconium dioxide crystal growing furnace；
5) centerless grinder precision optical machinery processes the zirconium dioxide bar of required diameter；
6) taper needed for hollow grinding machine processing stake/nail head；
7) surface grinding machine completes tail structure, in flat；
8) surface sand-blasting is carried out to the zirconium dioxide stake/nail of molding, increases surface roughness；
9) stake/nail face crack is detected under stereoscope, substandard products, packaged sterile is removed.
Described surface sand-blasting cleaning treatment is referred under 0.25MPa pressure with 50 μm of Al203Sand grains sandblasting 10s, uses afterwards
Dehydrated alcohol ultrasound is respectively washed stake/nail surface 3min.
Used by surface sand-blasting cleaning treatment when being embodied as when pressure, sand grains classification and particle diameter and surface preparation
The scope or practical situation that parameter can be demarcated according to Summary is selected.
The full porcelain stake/nail of zirconium dioxide of preparation：Afterbody is designed as approximate pancake cuboid, is easy to dental forceps to press from both sides
Hold, stage casing is cylinder, head is cone, it is possible to reduce the tooth body cutting quantity during preparation of stake road, reduce the probability of odontagma, together
When also allow for being put into tooth body stake (nail) road got ready.Because the intensity of zirconium dioxide is sufficiently high, without thicker diameter.Finally lead to
Cross sand blasted surface process and tentatively obtain preferable mechanical bonding force.
The full porcelain stake/nail of zirconium dioxide of the present invention can be widely used for alternative metals nail or glass fiber post maintenance large area tooth
Body defect or incisal corner defect.
The full porcelain stake of zirconium dioxide/follow closely manufactured with the method for the present invention is approximate conico-acuminate, and working standard size has three
Kind (as shown in Figures 1 to 3), also dependent on needing to be designed to other sizes.
Fig. 1 a and Fig. 1 b is a kind of full porcelain nail of zirconium dioxide, and the full porcelain of zirconium dioxide follows closely total length 12mm.Afterbody is long 3mm
Pancake cuboid, stage casing is long 6mm, the cylinder of diameter 0.6mm, and head is long 2mm, the cone of 5 degree of taper, cone
Tip diameter 0.37mm.It is placed in dentin screw way, the maintenance for being mainly used in bizet defect especially labial teeth incisal corner defect is repaiied
It is multiple.
Fig. 2 a and Fig. 2 b be a kind of full porcelain stake of zirconium dioxide, the full porcelain stake total length 14mm of zirconium dioxide.Afterbody is long 3mm
Pancake cuboid, stage casing is long 5mm, the cylinder of diameter 1.1mm, and head is long 5mm, the cone of 5 degree of taper, cone
Tip diameter 0.68mm.Be placed in root canal pile road, be mainly used in the thinner and shorter tooth of diameter of root canal (such as distomolar).
Fig. 3 a and Fig. 3 b is the full porcelain stake of another kind of zirconium dioxide, the full porcelain stake total length 16mm of zirconium dioxide.Afterbody is long 3mm
Pancake cuboid, stage casing is long 6mm, the cylinder of diameter 1.3mm, and head is long 6mm, the cone of 5 degree of taper, circular cone
Body tip diameter 0.8mm.It is placed in root canal pile road, is mainly used in the tooth (such as labial teeth) of diameter of root canal thick and long.
The full porcelain nail using method schematic diagram of the present invention is as shown in Figure 4：
First screw way is prepared along tooth long axile direction using supporting reamer, zirconium dioxide is prepared according to previous embodiment
Good full porcelain nail with double cured resin cement RelyX Unicem or stir-in resin bonding implantation dentin, repair by joint resin
Multiple Big dentinal body defect is particularly labial teeth incisal corner defect.
Concrete operation step is as follows：
1st, tooth routine removing the necrotic tissue is suffered from, hole edge enamel is worn into the inclined-plane with hole wall into 60 ° of angles, width 1.0 by pre-standard hole shape
～2.0mm.
2nd, vital pulp tooth cavity wall nearly marrow side glass ion rebasing (depth person's row photosensitive calcium hydroxide in hole protects marrow), devital tooth root pipe
Directly row glass ion is rebasing for mouth.
3rd, it is supporting with metal self-threading pin at 0.5mm on the inside of cavities shaft angle area gum wall glaze dentin intersection
Reamer prepares screw way, depth 2mm, diameter 0.65mm along tooth long axile direction.
4th, grind retention pin and be allowed to be of convenient length according to tooth body and cavities profile corundum car pin, nail end is cut away from tooth is suffered from
End about 1～2mm.
5th, hole wall carries out acid etching, bonding, self-adhering-type resin cement (RelyX by the requirement of SingleBond description
Unicem, 3M ESPE) carry out retention pin bonding implantation.
6th, Z350 nano-resins filling is repaired, and grinds polishing.
The full porcelain stake using method pictorial diagram of the present invention is as shown in Figure 5：
The embodiment of the full porcelain stake of zirconium dioxide is similar with full porcelain nail, and after pulpless tooth root canal, the preparation of stake road exists
In root pipe.Concrete grammar is as follows：
1st, after root canal large defect tooth, using special reamer by predetermined depth preparation root pipe,
Remove gutta-percha.
2nd, the full porcelain stake of zirconium dioxide is tried on, diameter and the diameter of root canal after preparation of stake coincide and completely in place.
3rd, hole wall carries out acid etching, bonding by the requirement of SingleBond description, by double cured resin cement RelyX
Unicem or stir-in resin are imported in root pipe, and the full porcelain stake of zirconium dioxide is slowly in place.
4th, light-solidified lamp illumination makes resin fully solidify.
5th, the full porcelain stake of zirconium dioxide of uniform cutting additional length.
6th, the shaping of resin core and the final reparation form of tooth body are completed.
Embodiments of the invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright description and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
Claims (4)
1. the novel dental reparation full porcelain stake/nail preparation method of zirconium dioxide, it is characterised in that the full porcelain of described zirconium dioxide
The head of stake/nail is cone, and stage casing is cylinder, and afterbody is pancake cuboid, the full porcelain stake/nail of described zirconium dioxide
Preparation method comprises the steps：
1）Using titanium dioxide zirconium powder and polyvinyl butyral resin PVB as the powder for stake/nail production, prepare in proportion, mix,
Be dried, pelletize, the addition of polyvinyl butyral resin PVB bonds with allowing titanium dioxide zirconium powder；
2）Prepare the dowel pin mould of fixed dimension；
3）The zirconium rod to form unified specification is suppressed by preliminary dimension, it is contemplated that the shrinkage factor in zirconium dioxide porcelain block sintering process,
Porcelain block size is made into corresponding amplification；
4）By zirconium rod sinter molding in zirconium dioxide crystal growing furnace；
5）Centerless grinder precision optical machinery processes the zirconium dioxide bar of required diameter；
6）Taper needed for hollow grinding machine processing stake/nail head；
7）Surface grinding machine completes tail structure, in flat；
8）Surface sand-blasting is carried out to the zirconium dioxide stake/nail of molding, increases surface roughness；
9）Stake/nail face crack is detected under stereoscope, substandard products, packaged sterile is removed.
2. method according to claim 1, it is characterised in that described surface sand-blasting cleaning treatment is referred in setting pressure
Lower use micron order sand grains sandblasting at least 5s, after be respectively washed stake/nail surface at least 1min with dehydrated alcohol ultrasound.
3. method according to claim 2, it is characterised in that described surface sand-blasting cleaning treatment is referred in 0.25MPa
With 50 m Al under pressure203Sand grains sandblasting 10s, after be respectively washed stake/nail surface 3min with dehydrated alcohol ultrasound.
4. the full porcelain stake of novel dental reparation zirconium dioxide as claimed in claim 1/follow closely is for alternative metals nail or glass fibers
Dimension stake maintenance large area dental defect or incisal corner defect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611100437.8A CN106580493A (en) | 2016-12-05 | 2016-12-05 | Preparation method of novel zirconium dioxide all-ceramic pile/nail for dental restoration |
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| CN201611100437.8A CN106580493A (en) | 2016-12-05 | 2016-12-05 | Preparation method of novel zirconium dioxide all-ceramic pile/nail for dental restoration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114267218A (en) * | 2021-12-08 | 2022-04-01 | 泉州医学高等专科学校 | Virtual simulation tooth marrow opening method, device and storage medium |
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|---|---|---|---|---|
| CN202235724U (en) * | 2011-09-26 | 2012-05-30 | 于正龙 | Threaded post pin for root canal |
| CN102499769A (en) * | 2011-10-31 | 2012-06-20 | 浙江大学 | Dentistry bionic radian curve fiber post |
| US9333054B1 (en) * | 2014-01-23 | 2016-05-10 | Leonard M. Garfinkel | Method and apparatus to restore a tooth implant impaired by peri-implantitis |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114267218A (en) * | 2021-12-08 | 2022-04-01 | 泉州医学高等专科学校 | Virtual simulation tooth marrow opening method, device and storage medium |
| CN114267218B (en) * | 2021-12-08 | 2023-09-08 | 泉州医学高等专科学校 | Virtual simulated tooth marrow opening method, device and storage medium |
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