CN102579148A - Preparation method of aesthetic all-zirconia restoration body - Google Patents
Preparation method of aesthetic all-zirconia restoration body Download PDFInfo
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- CN102579148A CN102579148A CN2012100540903A CN201210054090A CN102579148A CN 102579148 A CN102579148 A CN 102579148A CN 2012100540903 A CN2012100540903 A CN 2012100540903A CN 201210054090 A CN201210054090 A CN 201210054090A CN 102579148 A CN102579148 A CN 102579148A
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Abstract
The invention relates to a preparation method of an aesthetic all-zirconia restoration body. The process comprises the steps of: clinically making an impression and a model after tooth preparation, collecting the digital impression, establishing a digital model, designing the shape of the restoration body by being assisted with a computer, cutting into the shape of the restoration body by a digital control lathe, try-wearing on the model, adjusting the outline form, polishing, coloring, glazing, and completing the fabrication of final restoration body. The restoration body is colored by using a coloring zirconia porcelain piece; the coloring process is influenced little by personal factors; an all-zirconium-crown cutting end transparent handling liquid is used to handle the presintered tooth crown, so that the color and the transparence of the zirconia all-porcelain tooth change gradually, so that an ideal aesthetic effect is achieved. The preparation process is free of porcelain coating. The method has no porcelain fracture danger, and the operation is simple. The prepared tooth is few, so 1mm of preparation space is enough to use. The zirconia all-porcelain tooth has excellent biocompatibility, high strength, good transparence and glossiness, and natural and lifelike colors. CAD/CAM (Computer-Aided Design/computer-aided manufacturing) is used for designing and completing the processing, thereby ensuring the marginal adaption and precision of the zirconia all-crown porcelain tooth.
Description
Technical field
The invention belongs to oral cavity ceramic material and preparing technical field thereof, be specifically related to the method for preparing of the full zirconium oxide prosthesis of a kind of aesthetics.
Background technology
In recent years, increasing patient and doctor select the permanent dummy of full ceramic material as the oral cavity.The advantage that full ceramic material has metal to hardly match; It can not make gingiva painted, does not have the metallic substrates exposed problems, does not have the oral cavity internal corrosion; No metal shuts out the light; Can reproduce the color and the semi-transparency property of natural teeth realistically, be the best dummy of aesthetic, and extremely successful personage, personage in the performing circle praise highly.And needs of patients is done head X line, CT, the nuclear magnetic resonance check chamber artificial tooth of also need not dismantling; Simultaneously full ceramic material good biocompatibility;, nothing allergy non-stimulated to gingiva is reacted, has been reduced the stimulation of its hetero-organization of boil on the nape opposite the mouth intracavity, thereby reduced the possibility of pathological changes.
Zirconia ceramics is novel biomaterial, has excellent biological compatibility, and excellent mechanical property has become the emphasis of tooth section pottery exploitation.Zirconia ceramics is applied to dental materials; Workable glass ceramic, casting porcelain, glass-infiltrated ceramic, aluminium oxide ceramics etc. have been solved because fragility is big; Intensity is not high; Only can be used for the reparation of leaf-comb, veneer and labial teeth three unit pontics and the problem that can not use in the backteeth district, expand the scope of application of full ceramic material, thereby attractive in appearance, firm, durable dummy is provided for the patient.
Present Zirconium oxide full-porcelain on the market generally all is through computer-aided design, laser scanning, forms interior hat by computer program control cutting again; On physical model, try on behind the sintering; But because its light transmittance is single; Label in generally need be after processing when the aesthetics that is used for the labial teeth of young patient is repaired and apply one deck porcelain powder close,, thereby cause the increase of abutment preparation space with the simulating nature tooth with the natural teeth color and luster.And in being equipped with the tooth process, very high to the preparation requirement of abutment, the doctor will pay the energy than several times of common porcelain odontodes.This also is one of expensive reason of Zirconium dioxide full porcelain tooth.Limited the popularization that Zirconium oxide full-porcelain is used.
Though the rupture strength of zirconia material self can reach more than the 1200MPa, facing ceramic material intensity has only 100 ~ 120 MPa.Because zirconium oxide is bigger with the difference of the thermal coefficient of expansion of adoring porcelain, mechanical property, and chemical bond intensity is low between the two, is prone to cause adoring porcelain and peels off; Promptly collapse porcelain.The clinical effectiveness of Zirconium oxide full-porcelain shows that 5 years later porcelain rates that collapse of Zirconium oxide full-porcelain reach more than 10%.Simultaneously has severe dental attrition for those, interlock tension, the dummy of the also inapplicable this full porcelain porcelain of situation people such as bruxism.
Now, more existing patents about full zirconium oxide prosthesis aspect like CN102302381A, CN1201676029U, have all been introduced the method for preparing of full zirconium oxide prosthesis.But the staining method of dummy all is to adopt dyeing liquor painted, and this colorize method is simple to operate, but can receive artificial factor, and technology stability is relatively poor.What of the length of soak time, brushing number of times are bigger to the influence of the color of final dummy.Though this technology can be that the color of dummy presents the effect of gradual change through the mode of brushing, the light transmission of dummy is more single, still can not satisfy the anterior teeth aesthetical repairment effect of requirement.
Summary of the invention
The present invention is directed to the problem that exists in the above-mentioned existing full zirconium recovery technique; The method for preparing of the full zirconium oxide prosthesis of a kind of aesthetics is provided; Solved the painted artificial factor that receives of dummy in the existing full zirconium recovery technique; Technology stability is relatively poor, and the light transmission of dummy is more single, can not satisfy the anterior teeth aesthetical repairment effect of requirement fully.The marginal fit property and the accuracy of full zirconium oxide corona have also been guaranteed simultaneously.
Technical scheme of the present invention comprises the steps:
Step 1:, select the colored zirconium oxide porcelain piece of respective color for use according to the colorimetric result;
Step 2: carry out routine preparation, clinical die and the model produced according to the pre-standard of full porcelain dummy;
Step 3: use the Zirconium dioxide full porcelain tooth scanner scanning, gather number stamp, set up mathematical model on computers, computer-aided design dummy form;
Step 4: numerically controlled lathe cuts into the dummy form, obtains the zirconium oxide corona that size and original die are complementary;
Step 5: support column and the polishing of adopting dentistry low speed mobile phone finishing Zirconium oxide tooth to label are handled;
Step 6: utilize full zirconium hat to cut end transparent processing liquid zirconium oxide presintering corona is handled;
Step 7: full zirconium hat is cut end transparent processing liquid handle back corona drying;
Step 8: corona after the drying is put into the sintering furnace sintering, form fine and close zirconia ceramics, reach the high strength and the high degree that passes through of expection;
Step 9: polish and glazing, promptly finally accomplish Zirconium dioxide full porcelain tooth.
Colored zirconium oxide porcelain piece in the described step 1 is that color approaches the nature tooth, is 0.25 ~ 0.45 in visible-range iuuminting rate.
To cut end transparent processing liquid be the water or the alcohol-water solution of solute concentration 10 ~ 73wt% solubility ytterbium or yttrium salt to used full zirconium hat in the described step 6, and alcohol is selected for use and dissolved each other with water and improve the alcohols of solution viscosity effect.
Described alcohol is any in glycerin, ethylene glycol, Macrogol 600, the tetrahydrofurfuryl alcohol.
Processing mode is for soaking and/or brushing in the described step 6, and soak time is 0.5 ~ 30min, and the brushing number of times is 2 ~ 10 times.
Dry run adopts and puts under the infrared lamp corona or the baking oven drying in the described step 7, and be 30 ~ 60min drying time.
Sintering temperature is 1450 ~ 1600 ℃ in the described step 8, temperature retention time 2 ~ 5h.
Advantageous effect of the present invention is following:
The full zirconium oxide prosthesis of aesthetics provided by the invention; The painted employing of dummy be colored zirconium oxide porcelain piece; It is less that coloring process is influenced by anthropic factor; And handle through using full zirconium hat to cut the presintering corona of end transparent processing liquid after to processing, the Zirconium oxide full-porcelain that makes final completion reaches ideal aesthetic effect all presenting gradual change aspect color and the light transmission.Because its preparation process need not go up porcelain and handle, do not have and collapse porcelain danger, and also simple to operate.It is few to be equipped with tooth simultaneously, and the 1mm reserves space gets final product.
And should have excellent biocompatibility and higher intensity by the full zirconium oxide prosthesis of aesthetics, light transmission and glossiness are good, and color is true to nature more naturally.
Should design and machine by CAD/CAM by the full zirconium oxide prosthesis of aesthetics at last, guaranteed the marginal fit property and the accuracy of zirconium oxide complete crown porcelain tooth like this.
The specific embodiment:
Specify the present invention below in conjunction with embodiment.
Embodiment 1
The manufacture method of the full zirconium oxide prosthesis of a kind of aesthetics of the present invention; Adopt CAD/CAM system, its process is for being equipped with clinical die and the model produced behind the tooth, and the Zirconium dioxide full porcelain tooth optical scanner is gathered number stamp; Set up mathematical model on computers, computer-aided design dummy form.Numerically controlled lathe cuts into the dummy form, on model, tries on, and the adjustment profile, polishing, colouring, glazing is accomplished final dummy and is made.With labial teeth leaf-comb dummy is example, and concrete steps are: step 1, adopt corresponding Ai Er wound colored zirconium oxide porcelain piece according to doctor's colorimetric result.
Step 2 is carried out the routine preparation according to the pre-standard of full porcelain dummy; Sting jaw face mill and remove 1.0mm, relative axial plane polymerization angle is answered 6 ~ 8 °, and axial wall should be justified blunt with the junction of stinging the jaw face.Clinical then die and the model produced, the delivery type is the basis of high-quality Zirconium dioxide full porcelain tooth exactly.
Step 3 is used the Zirconium dioxide full porcelain tooth scanner scanning, gathers number stamp, and the scanner scanning time is 5min.Then, utilize the 3Shape dental CAD DentalDesigner of system software to set up the anatomical dental model automatically, corona is adjusted to the optimum position with antagonist and adjacent teeth, last lower jaw Synchronization Design.Hat can complete in less than 1min in single.
Step 4 adopts numerically controlled lathe to cut into the dummy form, obtains the zirconium oxide complete crown that size and original die are complementary, the zirconium oxide supporter that wherein comprises the zirconium oxide complete crown and be connected these corona both sides.This moment, the corona of lathe in machining was incomplete agglomerating zirconium oxide, and quality is softer, and cutting is easier to, and amplified during cutting, reserved 20 ~ 30% amount of contraction.The cutting time of single corona is 15 minutes.
Step 5 is located away from porcelain dish with zirconium oxide prosthesis, adopts the support column of dentistry low speed mobile phone finishing zirconium oxide corona both sides, and dentistry low speed mobile phone rotating speed is in 10000 ~ 20000r/min scope.Simultaneously in order to make crown surfaces more smooth, be to the crown surfaces processing of polishing.
Step 6 is used Ytterbium(III) nitrate. concentration to cut end transparent processing liquid as the full zirconium hat of 50wt% corona is cut end brushing 5 times.
Step 7 is with the corona dry 30min under infrared lamp after the brushing processing.
Step 8, dry intact corona 1530 ℃ of sintering in high temperature sintering furnace are incubated 2 hours.
Step 9 is polished zirconium oxide prosthesis, carries out glazing treatment with color glaze or glaze cream then, makes color and glossiness all reach the promptly final full zirconium oxide corona that does not have the decorations porcelain of accomplishing of requirement of aesthstic dummy.
Embodiment 2
To cut end transparent processing liquid be solute concentration 10wt% Yttrium chloride(Y2Cl6) glycerin solution to used full zirconium hat in the described step 6; Processing mode is for soaking, and soak time is 30min.
Dry run adopts drying in the baking oven in the described step 7, and be 60min drying time.
Sintering temperature is 1450 ℃ in the described step 8, temperature retention time 5h.
Embodiment 3
To cut end transparent processing liquid be solute concentration acetic acid yttrium 73wt% glycol water to used full zirconium hat in the described step 6; Processing mode is for after soaking 0.5min, and repaste is brushed 2 times.
Dry run adopts corona is put into drying under the infrared lamp in the described step 7, and be 60min drying time.
Sintering temperature is 1600 ℃ in the described step 8, temperature retention time 2h.
Embodiment 4
To cut end transparent processing liquid be solute concentration 43wt% Ytterbium Sulfate Macrogol 600 aqueous solution to used full zirconium hat in the described step 6, and processing mode is brushing 10 times.
Dry run adopts corona is put into the baking oven drying in the described step 7, and be 60min drying time.
Sintering temperature is 1500 ℃ in the described step 8, temperature retention time 3h.
Embodiment 5
To cut end transparent processing liquid be solute concentration 60wt% Ytterbium trichloride tetrahydrofurfuryl alcohol aqueous solution to used full zirconium hat in the described step 6, and processing mode is for soaking 0.5min.
Dry run adopts corona is put into the dry 30min of baking oven in the described step 7.
Sintering temperature is 1450 ℃ in the described step 8, temperature retention time 4h.
Claims (7)
1. the method for preparing of the full zirconium oxide prosthesis of aesthetics is characterized in that comprising the steps:
Step 1:, select the colored zirconium oxide porcelain piece of respective color for use according to the colorimetric result;
Step 2: carry out routine preparation, clinical die and the model produced according to the pre-standard of full porcelain dummy;
Step 3: use the Zirconium dioxide full porcelain tooth scanner scanning, gather number stamp, set up mathematical model on computers, computer-aided design dummy form;
Step 4: numerically controlled lathe cuts into the dummy form, obtains the zirconium oxide corona that size and original die are complementary;
Step 5: support column and the polishing of adopting dentistry low speed mobile phone finishing Zirconium oxide tooth to label are handled;
Step 6: utilize full zirconium hat to cut end transparent processing liquid zirconium oxide presintering corona is brushed or/and immersion treatment;
Step 7: full zirconium hat is cut end transparent processing liquid handle back corona drying;
Step 8: corona after the drying is put into the sintering furnace sintering, form fine and close zirconia ceramics, reach the high strength and the high degree that passes through of expection;
Step 9: polish and glazing, promptly finally accomplish Zirconium dioxide full porcelain tooth.
2. the method for preparing of the full zirconium oxide prosthesis of aesthetics according to claim 1 is characterized in that the colored zirconium oxide porcelain piece color that adopts in the described step 1 approaches the nature tooth, in visible-range iuuminting rate 0.25 ~ 0.45.
3. the method for preparing of the full zirconium oxide prosthesis of aesthetics according to claim 1; It is characterized in that in the described step 6 that it is the water or the alcohol-water solution of solute concentration 10 ~ 73wt% solubility ytterbium or yttrium salt that used full zirconium hat is cut end transparent processing liquid, alcohol is selected for use and is dissolved each other with water and improve the alcohols of solution viscosity effect.
4. the method for preparing of the full zirconium oxide prosthesis of aesthetics according to claim 3 is characterized in that described alcohol is any in glycerin, ethylene glycol, Macrogol 600, the tetrahydrofurfuryl alcohol.
5. the method for preparing of the full zirconium oxide prosthesis of aesthetics according to claim 1 is characterized in that processing mode is for soaking and/or brushing in the described step 6, and soak time is 0.5 ~ 30min, and the brushing number of times is 2 ~ 10 times.
6. the method for preparing of the full zirconium oxide prosthesis of aesthetics according to claim 1 is characterized in that the dry run employing is put into corona under the infrared lamp or the baking oven drying in the described step 7, and be 30 ~ 60min drying time.
7. the method for preparing of the full zirconium oxide prosthesis of aesthetics according to claim 1 is characterized in that in the described step 8 1450 ~ 1600 ℃ of sintering temperatures, temperature retention time 2 ~ 5h.
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| CN103083094A (en) * | 2012-12-20 | 2013-05-08 | 北京大学口腔医学院 | Preparation method of personalized and integrated all-ceramic post-and-core of dentistry |
| CN104337586A (en) * | 2013-07-26 | 2015-02-11 | 棕茂科技股份有限公司 | Dental model gradational-layer ceramic block and manufacture method thereof |
| CN104434328A (en) * | 2014-08-12 | 2015-03-25 | 杭州而然科技有限公司 | Wet forming production method of dental all-ceramic restoration |
| CN104814804A (en) * | 2015-05-18 | 2015-08-05 | 四川大学 | Anterior tooth aesthetic repair tooth preparation quantity measuring method and preparation method |
| CN105030359A (en) * | 2015-08-31 | 2015-11-11 | 北京赢冠义齿加工有限责任公司 | Processing method for dental zirconium oxide restoration body inner crown |
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| CN105367130A (en) * | 2015-12-09 | 2016-03-02 | 秦皇岛泽克尼陶瓷科技有限公司 | Gradient dyeing process of zirconia denture |
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| CN105816250A (en) * | 2016-05-05 | 2016-08-03 | 张志帆 | Processing method of porcelain tooth wainscot |
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| CN112390646A (en) * | 2019-08-19 | 2021-02-23 | 江苏乾度智造高科技有限公司 | Method for forming full-ceramic dental crown by three-dimensional photoetching of zirconia ceramic slurry |
| CN110790572A (en) * | 2019-12-11 | 2020-02-14 | 深圳市家鸿口腔医疗股份有限公司 | Zirconia dental crown and preparation method and application thereof |
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| CN116023135A (en) * | 2022-12-28 | 2023-04-28 | 爱迪特（秦皇岛）科技股份有限公司 | 3D printing high-transmittance ceramic tooth and preparation method thereof |
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