CN107773317A - A kind of artificial tooth processing technology using 3D printing - Google Patents
A kind of artificial tooth processing technology using 3D printing Download PDFInfo
- Publication number
- CN107773317A CN107773317A CN201610739228.1A CN201610739228A CN107773317A CN 107773317 A CN107773317 A CN 107773317A CN 201610739228 A CN201610739228 A CN 201610739228A CN 107773317 A CN107773317 A CN 107773317A
- Authority
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- China
- Prior art keywords
- artificial tooth
- embedded material
- printing
- processing technology
- temperature
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0006—Production methods
- A61C13/0019—Production methods using three dimensional printing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
Abstract
The invention discloses a kind of artificial tooth processing technology using 3D printing, by using above-mentioned technical proposal, compared with prior art, using 3D printing equipment making working model, process time is greatly shortened, being capable of the more quantity of output within the unit interval, save substantial amounts of cost of labor, effectively reduce spending summation, while the working model obtained by 3D printing equipment making its wall thickness has higher accuracy class, is advantageous to improve the precision of the artificial tooth of processing gained.
Description
Technical field
The present invention relates to medical gear division accessories field, more specifically, it relates to which a kind of artificial tooth using 3D printing is processed
Technique.
Background technology
In gear division field, manufacture artificial tooth is film-made firstly the need of tooth, and its preparation method is specially：First in patients teeth
Modulus, patient is left the teeth mark of itself in silica gel mouth mold, gypsum is poured into teeth mark, form gypsum work mould, stone
Cream Working mould is identical with the prototype of cavity interior tooth, then carries out 3-D scanning to gypsum work mould by scanner, automatically
Threedimensional model after generation optimization, typically carries out follow-up wax pattern preparation by two ways in the prior art, the first, pass through people
The mode of the manual molding of work, on the basis of corresponding three-dimensional model, by virtue of experience, is manually coated on gypsum work mould
Coating of wax（This layer of wax has the characteristic easily departed from）, continue to coat second layer wax on the basis of first layer wax（This layer of wax has
Certain robustness, it is mainly used in stablizing wax pattern）, continue the third layer wax that runner effect is played in coating, this layer of wax and first layer
Wax, second layer wax are connected, and first layer wax, second layer wax and third layer wax constitute wax pattern, by the wax pattern to complete from stone
Removed on cream Working mould and complete wax pattern preparation；Second, threedimensional model is imported in computer system, utilizes five axle engraving equipments
Raw material gatch is directly carved, wax pattern is made；The wax pattern that two ways completes subsequently is embedded, molten metal is filled out
The process such as fill.
The first above-mentioned wax pattern preparation mode, being restricted by artificial waxing speed, its operating efficiency is relatively low, while by
It is more the experience by worker in waxing, the precision of its wax pattern is difficult to ensure that；Second of wax pattern preparation mode, due to tooth
Surface height is uneven, and its operating efficiency is relatively low, equipment cost is higher, and waste of the artistic carving to raw material is more serious,
Improved weak point be present in prior art.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of artificial tooth using 3D printing to process work
Skill, the technique effectively improve operating efficiency on the basis of precision is ensured, have saved cost of labor, saving is opened by 3D printing
Branch.
To achieve the above object, the invention provides following technical scheme：A kind of artificial tooth processing technology using 3D printing,
Comprise the following steps：
Step（a）, the gypsum work mould with tooth form same shape structure inside patient's mouth is made；
Step（b）, 3-D scanning is carried out to gypsum work mould by scanner, surface of denture design is carried out, automatically generates optimization
Threedimensional model afterwards；
Step（c）, threedimensional model is imported into 3D printing equipment, 3D printing raw material is put into printing device material bin, beaten
Print task, working model of the generation with runner；
Step（d）, prepare embedded material, embedded material in can deformation solid state, control the coefficient of expansion of embedded material with
The working model coefficient of expansion is consistent made of 3D printing raw material；
Step（e）, the embedded material for preparing completion is piled up in working model outer surface, forms cavity, the runner of working model
Port is extended on the outside of cavity；
Step（f）, heated using heating furnace high-temperature, the working model in cavity is heated to become gas, and gas is with runner port
Cavity is overflowed, inner chamber is formed in inside cavity；
Step（g）, molten metal is injected in interior intracavitary immediately after heating is completed, and cool and solidify, form metal rudimentary model；
Step（h）, inner chamber is opened, metal rudimentary model is taken out and carries out grinding process in its outer surface；
Step（i）, the porcelain on metal rudimentary model surface, artificial tooth is made.
By using above-mentioned technical proposal, compared with prior art, using 3D printing equipment making working model, greatly
Shorten process time, within the unit interval can the more quantity of output, save substantial amounts of cost of labor, effectively reduce
Spending summation, while the working model obtained by 3D printing equipment making its wall thickness has a higher accuracy class, is advantageous to carry
The precision of the artificial tooth of height processing gained.
The present invention is further arranged to：Preparing the specific steps of embedded material also includes：
Step（d1）, embedded material mixes according to a certain percentage by embedding powder, inflation fluid and water, changes the Specific amounts of water,
Keep the amount of inflation fluid and embedding powder constant, set different test groups, corresponding embedded material is made；
Step（d2）, using embedded material respective production artificial tooth made of different test groups, artificial tooth and gypsum are worked respectively
Mould is engaged, and observes elasticity, and then filter out corresponding embedded material.
By using above-mentioned technical proposal, the making that different test groups carries out artificial tooth is set, then by artificial tooth and stone
The observation of cream Working mould elasticity, to reach the purpose for keeping embedded material consistent with the coefficient of expansion of working model, and then sieve
Most suitable embedded material is selected, its manner of formulation is simple, and the mode directly coordinated with gypsum work mould is more bonded actual feelings
Condition, be advantageous to improve the accuracy class that artificial tooth makes so that artificial tooth has more preferable compactness, improves usage comfort.
The present invention is further arranged to：Preparing the specific steps of embedded material also includes：
Step（d1）, embedded material mixes according to a certain percentage by embedding powder, inflation fluid and water, changes the Specific amounts of water,
Keep the amount of inflation fluid and embedding powder constant, set different test groups, corresponding embedded material is made；
Step（d2）, the coefficient of expansion of embedded material and working model is tested using coefficient of expansion analyzer, is contrasted, is sieved
Select the embedded material made by the immediate one group of test group of the coefficient of expansion.
By using above-mentioned technical proposal, the making that different test groups carries out artificial tooth is set, directly passes through the coefficient of expansion
Analyzer detection corresponding to the coefficient of expansion, its technological process is relatively simple, and efficiency is higher, at the same by equipment detection also have compared with
High accuracy class so that obtained artificial tooth has more preferable compactness, improves usage comfort.
The present invention is further arranged to：The step（f）It is middle to be heated using heating furnace high-temperature, in addition to setting temperature control song
Line, temperature control curve include the warming-up section for heating cavity, the soaking zone for vaporizing working model and for cooling cavities
Temperature descending section.
By using above-mentioned technical proposal, when cavity and its internal working model were located in the time of warming-up section,
Cavity and working model are slowly heated heating, and in holding stage, the working model of inside cavity is heated to open because fusing point is relatively low
Beginning slowly becomes gas, is overflowed from the port of runner, until the working model of inside cavity being capable of the whole row without any residual
Go out inside cavity, technological process is relatively simple, and the division of labor is clear and definite, can be on the basis of completely cavity body structure is not damaged, very
Removal working model, be advantageous to improve inner chamber precision, and then improve artificial tooth make precision.
The present invention is further arranged to：The warming-up section initial value is 200 DEG C to 700 DEG C, and end value is 900 DEG C to 1200
DEG C, warming-up section temperature is 1 to 3 hour with rising, the warming-up section elapsed time.
By using above-mentioned technical proposal, kept for the above-mentioned time be advantageous to cavity with temperature range and be heated evenly, avoided
The destroyed situation of cavity heated structure.
The present invention is further arranged to：The soaking zone constant temperature, its thermostat temperature are 900 DEG C to 1200 DEG C, the insulation
Section elapsed time is 0.5 to 2 hour.
By using above-mentioned technical proposal, above-mentioned time and temperature range are kept so that the working model of inside cavity
Without the discharge inside cavity of any residual residual impurity can be avoided to occur, be advantageous to improve the precision that artificial tooth makes.
The present invention is further arranged to：The temperature descending section is normal temperature environment Temperature fall.
By using above-mentioned technical proposal, normal temperature environment cooling, it is not necessary to which using other equipment, process is simple and convenient, has
Beneficial to reducing cost.
The present invention is further arranged to：Step（a）The middle specific steps for making gypsum work mould also include：Existed by patient
The teeth mark of itself is left in silica gel mouth mold, gypsum is then poured into teeth mark, and then form gypsum work mould.
By using above-mentioned technical proposal, the mode of working artificial's sampling, the tooth form inside patient's mouth, operation side are gathered
Formula is relatively simple, and cost is relatively low.
The present invention is further arranged to：The 3D printing raw material is light-cured resin.
By using above-mentioned technical proposal, light-cured resin according to its own characteristic, high-temperature heating resolve into water gas and
Carbon dioxide, it is ensured that do not have the residual of working model raw material in the inner chamber of inside cavity.
The present invention is further arranged to：The step（g）In injection molten metal process pass through centrifuge complete injection.
By using above-mentioned technical proposal, centrifuge carries out the injection of molten metal using centrifugal force, and speed can be true
Molten metal can be injected immediately after inner chamber is thermally formed by protecting cavity, accelerate technological process, improve efficiency.
In summary, the invention has the advantages that：The artificial tooth processing technology, process is simple, and whole efficiency is higher,
Human cost greatly is saved, the output artificial tooth quantum of output in the unit interval maximizes, and substantially without wastage of material, further drops
Low cost expenditure.
Brief description of the drawings
Fig. 1 is a kind of process chart of artificial tooth processing technology using 3D printing of the invention.
Embodiment
Reference picture 1 is described further to the embodiment of the present invention.
Embodiment one：
As shown in figure 1, a kind of artificial tooth processing technology using 3D printing, specifically includes following steps：
Step（a）Gypsum work mould is made, a silica gel mouth mold is provided first, patient leaves the teeth mark of itself in silica gel mouth mold,
Because silica gel mouth mold can restore to the original state within the time of ten minutes or so, so gypsum, gypsum can be poured into teeth mark immediately
Gypsum is separated with silica gel mouth mold after solidification, and then forms gypsum work mould, in obtained gypsum work mould and patient's mouth
Portion's tooth form shape and structure keeps identical；
Step（b）Threedimensional model after generation optimization, 3-D scanning is carried out to gypsum work mould by scanner, carries out artificial tooth table
Face is designed, and automatically generates the threedimensional model after optimization, and the file by threedimensional model export in STL forms；
Step（c）Working model is made in 3D printing, and the file of STL forms is imported into 3D printing equipment, 3D printing raw material is put into
In printing device material bin, the 3D printing raw material of this process is light-cured resin, carries out print out task, work of the generation with runner
Make model, the working model is identical with the structure of wax pattern in the prior art, and difference is constituent material difference, but compared to wax
Its wall thickness accuracy of type is higher, and the setting of runner is primarily to the embedding process in later stage, runner concrete structure are in thin tube-like；
Step（d）Prepare embedded material, embedded material its form for can deformation solid state, embedded material is specifically by embedding
Powder, inflation fluid and water mix according to a certain percentage, and embedding powder is by cristobalite, silica flour, magnesia, phosphoric acid the second light industry bureau magnesium and phosphorus
Sour the second light industry bureau ammonium is according to 20:11:6:3:10 mass ratio mixes, and wherein cristobalite is mainly for the expansion of enhancing embedded material
Rate, as long as silica flour is mainly used for increasing the intensity and heat resistance of embedded material, magnesia, phosphoric acid the second light industry bureau magnesium and di(2-ethylhexyl)phosphate
Light ammonium is then used as bonding agent, and inflation fluid specifically uses aqueous silica solution of the prior art；
The specific ratio of embedded material is made by testing, and concrete mode is the quality by changing water, keeps inflation fluid and embedding powder
Quality proportion it is constant, set different test groups, be made corresponding to embedded material.Utilize embedding made of different test groups
Material respective production artificial tooth again, each obtained artificial tooth is engaged with gypsum work mould, is observed elasticity, is selected elastic
The artificial tooth being bonded the most is spent, and then filters out corresponding embedded material.The final purpose of the experiment is to need to filter out and by work
Make the embedded material that swelling of the pattern coefficient keeps equal, each different 3D printing raw material is required to prepare most suitable embedding
Material；
Step（e）Embedding treatment is carried out to working model, the embedded material prepared and screen completion is piled up outside working model
Surface, cavity is formed, the runner Single port of working model is extended to outside cavity, runner another port and internal working model phase
Connection；
Step（f）High-temperature heating, is heated using heating furnace high-temperature, sets specific temperature control curve, and temperature control curve includes being used to add
The warming-up section of hot cavity, the soaking zone for vaporizing working model and the temperature descending section for cooling cavities.Warming-up section initial value
For 200 DEG C to 700 DEG C, end value is 900 DEG C to 1200 DEG C, and specific initiating terminal temperature value is 500 DEG C, and warming-up section elapsed time is
1 to 3 hour, the specific cost time was 2 hours, and temperature uniformly rises to 1000 DEG C, in warming-up section, chamber within two hours
Body is changed into the solid state with certain degree of hardness from deformable solid state.Soaking zone is subsequently entered, soaking zone constant temperature, it is permanent
Temperature is 900 DEG C to 1200 DEG C, and actual temp is 1000 DEG C, and soaking zone elapsed time is 0.5 to 2 hour, when specifically spending
Between be 1.2 hours, during soaking zone, the working model in cavity（Including runner）Heated to become gas, specific gas is water
And carbon dioxide, the port that gas is extended to outside cavity with runner are overflowed cavity, formed in inside cavity in artificial tooth shape
Chamber.Cavity is then taken out out of heating furnace and enters temperature descending section, temperature descending section is normal temperature environment Temperature fall, and elapsed time is 1 hour；
Step（g）Molten metal injects, and injects and melts in interior intracavitary immediately after cavity is taken out out of heating furnace and enters temperature descending section
The molten metal of state, molten metal can be selected independently according to different situations, and usual molten metal is titanium alloy, nichrome etc.,
Cooled and solidified by normal temperature, form metal rudimentary model；
Step（h）, the inner chamber being made up of embedded material is opened, metal rudimentary model is taken out and carries out burnishing part in its outer surface
Reason, mainly for polishing off the metal of runner section；
Step（i）, the porcelain on metal rudimentary model surface, artificial tooth is made.
Embodiment two：
Embodiment two in place of the difference of embodiment one with being step（d）In carry out the survey of the coefficient of expansion in different ways
Fixed, this programme measures the coefficient of expansion of each group of embedded material using coefficient of expansion analyzer, records corresponding numerical value, while right again
The coefficient of expansion of working model carries out test record numerical value, then by the expansion system of the coefficient of expansion of embedded material and working model
Several specific data are contrasted, and select closest or equal one group of numerical value, and then filter out corresponding embedded material.Should
The final purpose of experiment is to need to filter out and by the equal embedded material of working model coefficient of expansion holding, each is different
3D printing raw material is required to prepare most suitable embedded material.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of artificial tooth processing technology using 3D printing, it is characterised in that comprise the following steps：
Step（a）, the gypsum work mould with tooth form same shape structure inside patient's mouth is made；
Step（b）, 3-D scanning is carried out to gypsum work mould by scanner, surface of denture design is carried out, automatically generates optimization
Threedimensional model afterwards；
Step（c）, threedimensional model is imported into 3D printing equipment, 3D printing raw material is put into printing device material bin, beaten
Print task, working model of the generation with runner；
Step（d）, prepare embedded material, embedded material in can deformation solid state, control the coefficient of expansion of embedded material with
The working model coefficient of expansion is consistent made of 3D printing raw material；
Step（e）, the embedded material for preparing completion is piled up in working model outer surface, forms cavity, the runner of working model
Port is extended on the outside of cavity；
Step（f）, heated using heating furnace high-temperature, the working model in cavity is heated to become gas, and gas is with runner port
Cavity is overflowed, inner chamber is formed in inside cavity；
Step（g）, molten metal is injected in interior intracavitary immediately after heating is completed, and cool and solidify, form metal rudimentary model；
Step（h）, inner chamber is opened, metal rudimentary model is taken out and carries out grinding process in its outer surface；
Step（i）, the porcelain on metal rudimentary model surface, artificial tooth is made.
2. a kind of artificial tooth processing technology using 3D printing according to claim 1, it is characterised in that prepare embedded material
Specific steps also include：
Step（d1）, embedded material mixes according to a certain percentage by embedding powder, inflation fluid and water, changes the Specific amounts of water,
Keep the amount of inflation fluid and embedding powder constant, set different test groups, corresponding embedded material is made；
Step（d2）, using embedded material respective production artificial tooth made of different test groups, artificial tooth and gypsum are worked respectively
Mould is engaged, and observes elasticity, and then filter out corresponding embedded material.
3. a kind of artificial tooth processing technology using 3D printing according to claim 1, it is characterised in that prepare embedded material
Specific steps also include：
Step（d1）, embedded material mixes according to a certain percentage by embedding powder, inflation fluid and water, changes the Specific amounts of water,
Keep the amount of inflation fluid and embedding powder constant, set different test groups, corresponding embedded material is made；
Step（d2）, the coefficient of expansion of embedded material and working model is tested using coefficient of expansion analyzer, is contrasted, is sieved
Select the embedded material made by the immediate one group of test group of the coefficient of expansion.
A kind of 4. artificial tooth processing technology using 3D printing according to Claims 2 or 3, it is characterised in that the step
（f）It is middle using heating furnace high-temperature heat, include setting temperature control curve, temperature control curve include be used for heating cavity warming-up section,
For vaporizing the soaking zone of working model and temperature descending section for cooling cavities.
5. a kind of artificial tooth processing technology using 3D printing according to claim 4, it is characterised in that the warming-up section rises
Initial value be 200 DEG C to 700 DEG C, end value be 900 DEG C to 1200 DEG C, warming-up section temperature with rising, when the warming-up section is lasted
Between be 1 to 3 hour.
6. a kind of artificial tooth processing technology using 3D printing according to claim 5, it is characterised in that the soaking zone is permanent
Temperature, its thermostat temperature are 900 DEG C to 1200 DEG C, and the soaking zone elapsed time is 0.5 to 2 hour.
7. a kind of artificial tooth processing technology using 3D printing according to claim 6, it is characterised in that the temperature descending section is
Normal temperature environment Temperature fall.
A kind of 8. artificial tooth processing technology using 3D printing according to claim 1, it is characterised in that step（a）Middle system
Making the specific steps of gypsum work mould also includes：The teeth mark of itself is left in silica gel mouth mold by patient, then in teeth mark
Gypsum is poured into, and then forms gypsum work mould.
9. a kind of artificial tooth processing technology using 3D printing according to claim 1, it is characterised in that the 3D printing is former
Expect for light-cured resin.
A kind of 10. artificial tooth processing technology using 3D printing according to claim 1, it is characterised in that the step（g）
In injection molten metal process pass through centrifuge complete injection.
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| CN201610739228.1A CN107773317A (en) | 2016-08-27 | 2016-08-27 | A kind of artificial tooth processing technology using 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610739228.1A CN107773317A (en) | 2016-08-27 | 2016-08-27 | A kind of artificial tooth processing technology using 3D printing |
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| CN107773317A true CN107773317A (en) | 2018-03-09 |
Family
ID=61439517
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| CN201610739228.1A Pending CN107773317A (en) | 2016-08-27 | 2016-08-27 | A kind of artificial tooth processing technology using 3D printing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109009513A (en) * | 2018-07-04 | 2018-12-18 | 骆处默 | False tooth manufacturing process |
| CN109394364A (en) * | 2018-10-29 | 2019-03-01 | 山东迈尔医疗科技有限公司 | A kind of manufacture craft of novel 3D printing removable denture bracket |
| CN110095063A (en) * | 2019-04-19 | 2019-08-06 | 北京大学口腔医学院 | A kind of standard detecting method of oral medical product 3D printing precision |
| CN112426241A (en) * | 2020-10-19 | 2021-03-02 | 北京联袂义齿技术有限公司 | False tooth processing technology adopting 3D printing |
| CN112914768A (en) * | 2021-03-04 | 2021-06-08 | 东莞市爱嘉义齿有限公司 | Implant upper denture casting process |
| CN114129290A (en) * | 2021-11-08 | 2022-03-04 | 南宁市美皓医疗器械有限公司 | False tooth manufacturing process based on 3D printing technology |
| CN114129290B (en) * | 2021-11-08 | 2024-04-26 | 南宁市美皓医疗器械有限公司 | Denture manufacturing process based on 3D printing technology |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009513A (en) * | 2018-07-04 | 2018-12-18 | 骆处默 | False tooth manufacturing process |
| CN109394364A (en) * | 2018-10-29 | 2019-03-01 | 山东迈尔医疗科技有限公司 | A kind of manufacture craft of novel 3D printing removable denture bracket |
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| CN112914768A (en) * | 2021-03-04 | 2021-06-08 | 东莞市爱嘉义齿有限公司 | Implant upper denture casting process |
| CN114129290A (en) * | 2021-11-08 | 2022-03-04 | 南宁市美皓医疗器械有限公司 | False tooth manufacturing process based on 3D printing technology |
| CN114129290B (en) * | 2021-11-08 | 2024-04-26 | 南宁市美皓医疗器械有限公司 | Denture manufacturing process based on 3D printing technology |
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Application publication date: 20180309 |