CN106037966A - Dental restoration CAD (computer aided design)/metal 3D automatic processing method - Google Patents
Dental restoration CAD (computer aided design)/metal 3D automatic processing method Download PDFInfo
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- CN106037966A CN106037966A CN201610316524.0A CN201610316524A CN106037966A CN 106037966 A CN106037966 A CN 106037966A CN 201610316524 A CN201610316524 A CN 201610316524A CN 106037966 A CN106037966 A CN 106037966A
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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
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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
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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
- A61C13/0004—Computer-assisted sizing or machining of dental prostheses
-
- 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
- A61C13/0018—Production methods using laser
-
- 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
Abstract
The invention discloses a completely novel dental restoration automatic processing method; according to the method, a dental restoration is processed through optical scanning and by virtue of a composite system which is composed of a computer aided design (CAD) system, a CAD auxiliary system and a selective laser cladding machine; the method, by combining an existing dental CAD system and a metal 3D printing technology, can rapidly manufacture the individual metal dental restoration, and a conventional manufacturing mode of an implant and upper structures thereof can be changed; by changing numerical control cutting processing into metal 3D printing processing, a processing efficiency can be greatly improved, and individual manufacturing can be also achieved; when necessary, the two processing modes, namely the metal 3D printing processing and the numerical control cutting aided processing, can be organically combined, so that the processing method can take advantages of the two processing modes, and the perfect combination of metal 3D printing and numerical control cutting is achieved; therefore, the conventional manufacturing mode of the implant and the upper structures thereof is changed.
Description
Technical field
The invention belongs to mouth mending material technical field, be specifically related to a kind of new mouth mending material CAD/ metal 3D automatic
Changing processing method, existing oral cavity CAD system is combined by the method with metal 3D printing technique, reaches the most personalized and makes
Metal mouth mending material.
Background technology
Computer-aided design (Computer aided design, CAD) makes (Computer with area of computer aided
Aided manufacture, CAM) technology, has merged mathematics, optics, electronics, computer picture recognition and process, has automatically controlled
Multi-disciplinary knowledge and the technology such as system and automatization's processing, be widely used in industrial automation and aviation at 20 century 70s
Space industry.Nineteen eighty-three, First dental CAD/CAM system model machine that France Duret develops comes out in France；1985 in method
In state's world dentist's academic conference, professor Duret utilizes this equipment making go out first backteeth porcelain complete crown body and be successfully used to patient
Oral cavity so that CAD/CAM becomes a reality for stomatology field.After entering the nineties in last century, along with modern photoelectron
The further development of technology, computer technology image analyzing and processing technology etc., increasing dental CAD/CAM system comes out.
At present, existing more than 10 kind CAD/CAM system are come out, and can make inlay, veneer, complete crown, partial crown, fixed bridge, implantation body's crane span structure
Deng.And at removable partial denture and complete denture still in conceptual phase, the most ripe system.Oral cavity CAD/CAM system
Generally made (CAM) three part subsystem by data acquisition (digitized die), computer-aided design (CAD), area of computer aided
System composition.One emerging recovery technique of oral cavity initially forms, and CAD/CAM system makes prosthetic dentistry stride into modern high technology
Field.
1, main CAD/CAM system
In current business-like oral cavity CAD/CAM system, CNC milling machine is one of important ingredient.Dummy is processed
Use CNC milling machine to control milling mode, in order to excise excess stock, meet shape, size and surface roughness requirements to obtain
Dummy.Belong to material on this technological essence and make " subtraction " alleged by category, i.e. this area.
1.1 Cerec systems
Cerec system is by Siemens (SIEMENS) dentistry portion, the most present German Xi Nuode (SIRONA) tooth
The exploitation of equipment company limited of section also progressively improves.Its product line include Cerec I, Cerec II and Cerec III and
Cerec in Lab.Cerec III is Cerec III system being born in 2000, and this system is based on windows platform, cutting system
Each working alone with image acquistion system, software system there has also been raising greatly so that this Cerec III system can make
Inlay, onlay, veneer, partial crown and complete crown.But Cerec III software system also can only be designed in the plane, it is difficult to
The configuration of display dummy.In March, 2003, Cerec 3D system was first in the Hinman dentistry conference of U.S. Atlanta
Secondary exhibition, it can introduce multidimensional angle of view when designing dummy, can be from three-dimensional angle visual evaluation dummy and base
The form of tooth.Cerec 3D software system adds the 3D design softwares such as FrameWork, it is achieved that the reparation of full porcelain fixed bridge.
Within 2002, Sirona company is proposed Cerec in Lab system, and exclusively for designed by skilled worker room, it uses laser scanning
Systematic collection tooth jaw data, faster, the scope of application is wider, and can use the titanium dioxide of higher intensity for dummy manufacturing speed
Aluminum, zirconia ceramic material.
1.2 Celay systems
Celay system by the design of Zurich tooth institute and is put on display in Munich for the first time in nineteen ninety, existing by Switzerland
Mikroma company produces.This system is not CAD/CAM system in complete meaning, and its principle is similar to a small-sized key and replicates
Machine, is made up of two parts, touch sensor and Micro Milling Machine, sensing head " read " to go out make in mouth or on die have one
Determining wax or the resin dummy surface topography data of hardness, and data be simultaneously communicating on milling machine, synchronous processing goes out porcelain reparation
Body.This system composition is simple, and automaticity is the lowest.During work, it is necessary to first make one in mouth or on die and repair temporarily
Complex, as the information source obtaining data.Celay system mainly utilizes the processing of aluminium dioxide machinable ceramic to have occlusal contour
The inlay of state or onlay, it is also possible to processing complete crown or the substrate crown of fixed bridge.
1.3 Procera systems
Procera system is Sweden's system, Nobel Biocare company introduced to the market in 1993.Now, this system
The Procera Forte scanner utilizing Procera Piccolo or more advanced collects data on dentognathic model, Yi Shitong
Cross Procera Lofrwore 2.0 software dummy is designed, after data are sent to by the Internet
4 production centers (Stockholm, the Sweden that Procera system is specified；Fair Lawn, NJ, USA；Karlskoga,
Sweden；Tokyo, Japan) carry out the processing of dummy.Machining center can require directly to be processed into final oxygen according to doctor
Change zirconium, aluminium oxide all-ceramic crown bridge, it is possible to be only processed into zirconium oxide, alumina substrate treats that postal Hui Houzai carries out surface decorations porcelain.
Procera system is in addition to may be used for making natural teeth corona, it is also possible to for field of planting.Procera system can be cut
Making pure titanium or zirconic single tooth base station, it can carry out individual character to the form profile of the height of base station, angle and edge line
Change design；Procera system can also cut the pure titanium of making or zirconic plantation bridge, and it at most can provide 14 units
Plantation bridge, has fabulous biocompatibility, remarkable intensity and aesthetic effect.
1.4 Cercon systems
Cercon system, by data on Cercon Eye Scanner 3-dimensional laser scanning dentognathic model, is transferred to
Dummy is designed by Cercon Art CAD part, then the information designed passes to Cercon Brain part right
Dummy carries out machining or the making center that information is delivered to be positioned at York by the Internet is added dummy
Work makes.Therefore the Cercon Art of Cercon system can be only bought for some small-sized dental clinic or skilled worker center
CAD part (having contained Cercon Eye Scanner scanner), thus reduce cost.Cercon Art CAD can be right
Prosthetic margin, conjunction face carry out fine design.Cercon system, with zirconium dioxide structural ceramics as processing object, can make stake
Core, Abutment, complete crown and fixed bridge.
1.5 Lava systems
Lava system is released in 2002 by Minnesota Mining and Manufacturing Company, by Lava Scan, Lava CAD, Lava Form, Lava
The part composition such as Therm.Collecting data on dentognathic model first with contactless 3D photo-scanning system, doctor utilizes Lava
Design 4.0 software carries out dummy design, and the zirconium dioxide porcelain block first passing through cutting presintering after completing obtains substrate
Hat, average per unit corona needs 35 minutes.After having cut, corona substrate crown is carried out fully sintered, then band on its surface
Face porcelain.Comparison Vita colorimetric system, Lava zirconium dioxide substrate is labeled with 7 kinds of color selecting, and facing porcelain has 16 kinds of color selecting, because of
The dummy that this Lava system makes has the color and luster closest to natural teeth and light transmission, and this system is primarily adapted for use in and is suitable to leaf-comb
The reparation of tooth 3～4 unit fixed bridge front and back.
1.6 Everest systems
Everest system system is introduced to the market in 2002 by Kavo company of Germany.This system by Everest scan,
Tetra-component compositions of Everest engine, Everest therm, Everest elements.First by Everest scan
Data presentation system (use CCD camera) gathers data on dentognathic model, and operator utilizes ENERGY CAD software to dummy
Carrying out 3-dimensional design, then CAM part carries out machining dummy on five axles of X, Y, Z, A, B.Therefore Everest system
The dummy made has good machining accuracy and anatomical structure clearly.The machinable material of Everest system is very
Extensively, including zirconium oxide, aluminium oxide, pure titanium, glass ceramics, gold, resin etc., can make implantation body, veneer, inlay, onlay,
Leaf-comb and fixed bridge.
1.7 open system
Open system is to occur " assembling " type CAD/CAM system, its data collecting system, CAD in recent years on market
System, CAM system can assemble after being made by different companies and be formed.The open system of comparative maturity has two kinds in the market
Scheme:
1) 3Shape dentistry dedicated scan instrument+CAD software+Germany's numerically controlled lathe, it can process the oxidation of all brands
Zirconium, plastics, do not limited by brand；
2) 3Shape dentistry dedicated scan instrument+CAD software+U.S.'s 3D system wax pattern machine, permissible after having made wax pattern
Embedding casting metal can also carry out the making of all-ceramic crown.
Comparing with other CAD/CAM system, the advantage of open system is: the material that can process is more extensive, makes
Cost is the cheapest.
2, the CAD/CAM system that material manufactures is increased
Above-mentioned numerically controlled lathe cannot cut dummy and the working angles with labyrinth (as with hollow structure)
In cause the waste etc. of material to become in Oral Repair advanced manufacturing technology to be badly in need of the key issue solved.Rapid shaping technique,
It is called for short RP or RPM technology (Rapid Prototyping/Rapid Prototyping Manufacturing), is 20th century 80
The advanced manufacturing technology that age end grows up.This technology is by computer-aided design (CAD), computer aided manufacturing
(CAM), computer numerical control (CNC) (CNC), elaborate servo drives, and the advanced science such as laser and material science is integrated in one, and takes
The thought that discrete-lamination is piled up, basic conception is: any 3 d part can be regarded as many two dimensional surface profiles along a certain
Coordinate side is superimposed to be formed.But RP technology can not directly make metal restoration to meet the needs of Oral Repair.20th century 90
Age Mo by RP technology and Laser Coating Technology combine set up Rapid Manufacturing Technology (Rapid Manufacturing, RM)
Dusty material successively cladding accumulation is obtained Three-dimensional Entity Components by laser by the mode using preset paving powder or synchronous powder feeding system.Its
The drip molding made has outstanding physicochemical property, and is not limited by labyrinth.RP technology and RM technology are the most equal
Belong to increasing material to make, i.e. " addition ".Gao Bo applied in " the laser solid forming method of oral cavity metal restoration " in 2003
State's patent of invention, obtains and authorizes for 2005, ZL03134316.3.At present, the 3D printing shaping main flow of metal restoration is SLM
(selective laser melting) and EBM (Electron Beam Melting) method, the former makes cobalt by major print
Evanohm Guan Qiao, hat abutment at the bottom of or removalbe partial denture bracket, the latter is mainly used in the making of metal implant.
2.1 application in fixed and repaired
Bennett in 2004 uses MCP Realizer equipment based on SLM technology to make cochrome and not respectively
The substrate crown of rust Steel material, fixing hat and fixed bridge, the corona external form after making is good.2005, France scholar Nadine should
The substrate crown of nichrome, the substrate crown profile made, precision is designed and has made with the Phenix SLM system of oneself research and development
All good, after cladding porcelain, the porcelain corona of making has extraordinary color matching and marginal.
2.2 application in removable partial denture
Williams in 2006 etc. have been made on SLM Realizer 2 machine by CAD/CAM technology and can pluck local justice
The cochrome support of tooth.Domestic Wu Lin etc. tentatively achieve the computer-aided design to Kennendy Ⅱ partially edentulous cast,
And the resin casting mold of removalbe partial denture bracket is processed with laser fast forming machine.Zhu Senyang in 2009 etc. are to Kennendy Ⅰ tooth
Lieque is damaged removalbe partial denture bracket and has been carried out computer-aided design and making.
2.3 application in complete denture
Complete denture complex shape, and the material of composition artificial tooth is various, complete denture CAD/CAM research relatively lags behind.In
PLA The Fourth Military Medical University of state Gao Bo etc., by Surfacer software, design half mouthful of metal base denture of the upper jaw, and
Laser solid forming technology initial processing is utilized to go out upper half mouth base.2008,2009, medical university of army of the Chinese People's Liberation Army the 4th
The treatise Lasers Med Sci (2010) 25 of the high table laser fast forming making pure titanium-base of the complete denture upper jaw that breaks out:
309 315, Rapid Prototyping Journal Volume15 Number2 2,009 133～136, and it is fitted
Conjunction property is studied, and clinical test results shows that it makes precision and has much room for improvement.
3, tradition CAD/CAM limitation in clinical practice and developing direction
The application in field, oral cavity of the CAD/CAM technology substantially increases remediation efficiency, shortens the patient treatment cycle, reduces
The misery of patient and reduce the labor intensity of technician so that prosthetic dentistry achieves revolutionary development.But facing
Bed application process there is problems: CAD/CAM system is mainly used in fixed and repaired field at present, and can pluck local
Not having the main cause of application in artificial tooth and complete denture is the intrinsic limitation of the machining of CAD/CAM system, single
Cause the waste of material, also make the dummy kind made single, it is impossible to the dummy of machining composite.
In sum, if metal 3D printing technique can be substituted the cutting manufacturing technology of tradition CAD/CAM system, tentatively
Referred to as oral cavity CAD/metal 3D print system, can will preferably expand indication and reparation body constitution that mouth mending material makes
Amount.
Summary of the invention
The defect existed for above-mentioned prior art or deficiency, it is an object of the invention to, it is provided that a kind of new oral cavity is repaiied
Complex processing method, existing oral cavity CAD system is combined by the method with metal 3D printing technique, reaches the most personalized system
Make metal mouth mending material.
In order to realize above-mentioned task, the present invention takes following technical solution:
A kind of mouth mending material CAD/ metal 3D automatization processing method, it is characterised in that the method uses optical scanning
Hybrid system processing Oral Repair with computer aided design system, CAD aid system and selective laser cladding machine composition
Body, specifically includes the following step:
Step one, has been routinely accomplished interior or the outer plaster model of mouth the three-dimensional profile of patient's mouth and scans and set up and oral cavity agomphosis
The data model that situation is consistent；
Step 2, according to the design principle of mouth mending material, uses the complete oral cavity of CAD aid system to become the configuration of dummy to set
Meter and making, output data form is the STL form that selective laser cladding machine is compatible；
Step 3, selective laser cladding machine is with the metal powder material of SLM molding, Oral Repair step 2 obtained
Body CAD 3D data model, is separated into two dimensional surface data, carries out two dimensional surface outline data processing according to default order,
Successively add up, cladding deposit forming material powder, obtain metal mouth mending material.
Step 4, bakes on metal mouth mending material and moulds or porcelain, complete the making of mouth mending material.
Wherein the selective laser cladding machine cladding deposit forming material powder described in step 3 is lazy in vacuum
Property gas processing storehouse in, metal powder material is laid on metal basal board, single berth powder thickness be foundation different metal powder material
Depending on the characteristic of material and machining accuracy, concrete forming step is as follows:
(1) metal dust is placed on powder bed, is warming up to suitable temperature；
(2) step (1) terminates rear laser beam according to two dimensional surface profile by metal dust cladding forming；
(3), after step (2) terminates, carry out second time and spread powder, with scraper plate, powder bed surface is struck off, the most again according to step
(1), step (2) order carries out the single track cladding forming of new a layer；Through repeatedly spreading powder, after single track cladding forming, remove and do not melted
The powder covered and supporting construction, i.e. can get metal mouth mending material.
Described step 2 farther includes: CAD aid system is when mouth mending material computer-aided design, by gold
Belong to support to be combined or the roasting retention system moulding combination, these retention system bags with artificial tooth junction design beneficially enhancement gold porcelain
Include maintenance microballon, maintenance microsphere or increase the alveolate texture of bond area.
Described mouth mending material includes:
(1), personalized stake core, Guan Qiao, PFM crown and bridge substrate, removalbe partial denture bracket or complete denture base；Or
Person
(2), personalized implantation body, the crane span structure of implantation body's superstructure, personalized base station.
The mouth mending material CAD/ metal 3D automatization processing method of the present invention, innovation is:
1, change the production method of traditional implantation body and superstructure thereof, numerical control cutting processing become metal 3D and print
Processing, working (machining) efficiency is greatly improved, it is also possible to realizes personalization and makes, it may also be necessary to and numerical control cutting secondary process two kinds
Processing mode combines, and respectively takes the chief, reaches metal 3D and prints the perfect adaptation with numerical control cutting, overturns original kind
Implant and the production method of superstructure thereof.
2, in implantation body's 3D print procedure, appropriate silver ion powder can be mixed, reach the most antibacterial, the most not affect bone knot
The purpose closed.
3, when CAD design, metal rack and artificial tooth junction are designed special be beneficial to promote gold porcelain be combined or
The roasting retention system moulding combination: such as maintenance microballon, maintenance microsphere or the alveolate texture etc. increasing bond area, by gold
Belong to 3D printing and making and go out to meet the metal rack special construction that design requires, thus bake at metal rack and mould or porcelain same
Time, improve the adhesion of plastics or pottery and metal rack, reduce pottery or the breakage rate of plastics, beneficially mouth mending material are long
Phase stably exercises normal function.
4, the optical scanning in the inventive method and computer aided design system, CAD aid system, selectivity is used to swash
The hybrid system of light cladding machine composition, can be placed on the flowing vehicles, such as car, ship, be equivalent to the artificial tooth of a flowing
Digital manufacturing factory.
Accompanying drawing explanation
Fig. 1 is the optical scanning that uses of the present invention and computer aided design system, CAD aid system, selective laser
The hybrid system structured flowchart of cladding machine composition；
Fig. 2 is the metal mouth mending material structure chart of preparation as a example by removable partial denture TC4 support；
Fig. 3 is dummy metal rack and pottery or the form picture of plastics junction special construction；
Fig. 4 is the removable partial denture TC4 metal rack picture that metal 3D has printed；
Fig. 5 is removable partial denture TC4 metal rack local special construction exhibiting pictures；
Fig. 6 is that removable partial denture TC4 metal props up adhesive holder porcelain or roasting moulds photo；
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Detailed description of the invention
Seeing Fig. 1, the present invention provides a kind of new mouth mending material processing method, and the method uses optical scanning and calculating
The hybrid system processing mouth mending material of machine aided design system, CAD aid system and selective laser cladding machine composition.This is multiple
Assembly system includes three parts, and Part I is optical scanning and computer aided design system, in order to complete mouth mending material
The collection of digital model；Part II is the CAD aid system of mouth mending material, to complete the calculating of mouth mending material configuration
Machine Aided Design.Part III is the selective laser cladding machine of miniaturization, and this selective laser cladding machine act as metal 3D
The role printed, molding is piled up in the cad data metal dust cladding of mouth mending material design completed.Specifically include following
Step:
Step one, has been routinely accomplished interior or the outer plaster model of mouth the three-dimensional profile of patient's mouth and scans and set up and oral cavity agomphosis
The data model that situation is consistent；
Step 2, according to the design principle of mouth mending material, uses the complete oral cavity of CAD aid system to become the configuration of dummy to set
Meter and making, output data form is the STL form that selective laser cladding machine is compatible；
Step 3, selective laser cladding machine is with the metal powder material of SLM molding, Oral Repair step 2 obtained
Body CAD 3D data model, is separated into two dimensional surface data, carries out two dimensional surface outline data processing according to default order,
Successively add up, cladding deposit forming material powder, obtain metal mouth mending material；
Step 4, bakes on metal mouth mending material and moulds or porcelain, complete the making of mouth mending material.
Above-mentioned metal mouth mending material includes: 1, personalized metal pile nuclear, metal crown bridge, PFM crown and bridge substrate, can pluck
Partial denture metal rack, complete denture metal base；
2, personalized implantation body, the crane span structure of implantation body's superstructure, personalized base station etc.；
Described step 2 farther includes: CAD aid system is when mouth mending material computer-aided design, by metal
Support is beneficial to promote gold porcelain and is combined or the roasting retention system moulding combination with the design of artificial tooth junction, and these retention systems include
Maintenance microballon, maintenance microsphere or the alveolate texture of increase bond area, to increase pottery or plastics and metal rack
Adhesion.
The following is making detailed of removable partial denture complex in a kind of mouth mending material that inventor provides
Overall process:
1, material and equipment
1.1 SLM material requested and equipment
Selective laser cladding machine (EOSINT M280, EOS Corp., Germany)；
TC4 powder, spherical powder, particle diameter 15-53 micron (Ka Bente company, the U.S.)；
Optical scanning and computer aided design system (DWOS, Dental Wings company, Canada).
1.2 other materials and equipment
Kang Te " water magic square " silicone rubber impression material (Kang Te gear division group, Switzerland)；
Super hard gypsum (Hubei Bei Nuo dental material company limited).
1.3 case selections and abutment preparation
Choose with male patient, 56 years old age, upper left jaw premolars and first Molar, it is impossible to row plantation and fixing justice
Tooth is repaired, the Wei Taling metal rack formula removable partial denture reparation that voluntary row is traditional.
Removable partial denture design sees Fig. 2, and for the removable partial denture of tooth-borne type, 13,17,23,27 as abutment,
Placing occlusal rest, lip buccal side design snap ring, wide posterior palatal bar is major connector.Complete clinical abutment preparation.
The computer-aided design of 1.4 removalbe partial denture brackets and 3D print
Producing two pairs of patient oral cavity plaster models, one pair completes according to traditional lost-wax casting method and wears to patient
Wear.Another pair makes optical scanning and computer aided design system obtain the digital model of plaster model, uses 3shape company
Removable partial denture design software complete the CAD design figure (Fig. 2) of removable partial denture TC4 support, it is emphasized that
14, special maintenance microballon structure (Fig. 3) increasing adhesion is designed in 15,16 edentulous region, subsequently with these data in choosing
Selecting property laser melting coating machine enterprising row metal 3D prints, and produces and can pluck local alloy artificial tooth TC4 support (Fig. 4).Local justice can be plucked
Tooth TC4 metal rack local special construction exhibiting pictures is as shown in Figure 5.Printing and making parameter is 400W optical-fiber laser, single berth
Powder thickness is 60 microns, and scanning pattern is linear filling+outline scanning.
In the present embodiment, selective laser cladding machine act as the role that metal 3D prints, and its cladding is piled up TC4 powder and become
Type is in vacuum inert gas processing storehouse, is laid on metal basal board by TC4 dusty material, and single berth powder thickness is according to different
Depending on the characteristic of metal powder material and machining accuracy, concrete forming step is as follows:
(1) metal dust (TC4 powder) is placed on powder bed, is warming up to suitable temperature；
(2) step (1) terminates rear laser beam according to two dimensional surface profile by metal dust cladding forming；
(3), after step (2) terminates, carry out second time and spread powder, with scraper plate, powder bed surface is struck off, the most again according to step
(1), step (2) order carries out the single track cladding forming of new a layer；Through repeatedly spreading powder, after single track cladding forming, remove and do not melted
The powder covered and supporting construction, i.e. can get and can pluck local alloy artificial tooth TC4 support.
1.5 can pluck that local alloy artificial tooth TC4 support is roasting to be moulded or porcelain
Plucking, local alloy artificial tooth TC4 support is roasting with on the special construction of artificial tooth junction to be moulded or porcelain, completes oral cavity
The making (Fig. 6) of dummy.
It should be noted that above embodiment is to aid in those skilled in the art and understands that the present invention, the present invention do not limit
In above-described embodiment, according to the method for the present invention, it is also possible to personalized stake core, Guan Qiao, PFM crown and bridge substrate, local can be plucked
Denture or complete denture base；Or personalized implantation body, the crane span structure of implantation body's superstructure, personalized base station etc. are various
Automatically being processed of mouth mending material.In implantation body's 3D print procedure, appropriate silver ion powder can be mixed, reach both to resist
Bacterium, does not the most affect synestotic purpose.
Certainly, the optical scanning used in the inventive method and computer aided design system, CAD aid system and selection
Property laser melting coating machine composition hybrid system, can be placed in flowing the vehicles on, such as car, ship, be equivalent to one flowing
Artificial tooth Digital manufacturing factory, provides for patient and services more easily.
Claims (4)
1. a mouth mending material CAD/ metal 3D automatization processing method, it is characterised in that the method use optical scanning and
The hybrid system processing mouth mending material of computer aided design system, CAD aid system and selective laser cladding machine composition,
Specifically include the following step:
Step one, has been routinely accomplished interior or the outer plaster model of mouth the three-dimensional profile of patient's mouth and scans and set up and oral cavity agomphosis situation
Consistent data model；
Step 2, according to the design principle of mouth mending material, use the complete oral cavity of CAD aid system become the configuration design of dummy with
Making, output data form is the STL form that selective laser cladding machine is compatible；
Step 3, selective laser cladding machine is with the metal powder material of SLM molding, mouth mending material step 2 obtained
CAD 3D data model, is separated into two dimensional surface data, carries out two dimensional surface outline data processing according to default order, by
Layer is cumulative, and cladding deposit forming material powder obtains metal mouth mending material；
Step 4, bakes on metal mouth mending material and moulds or porcelain, complete the making of mouth mending material.
2. the method for claim 1, it is characterised in that described mouth mending material includes:
(1), personalized stake core, Guan Qiao, PFM crown and bridge substrate, removalbe partial denture bracket or complete denture base；Or
(2), personalized implantation body, the crane span structure of implantation body's superstructure, personalized base station.
3. the method for claim 1, it is characterised in that the selective laser cladding machine cladding described in step 3 is piled up
Metal powder material molding is in vacuum inert gas processing storehouse, is laid on metal basal board by metal powder material, single berth
Depending on powder thickness is the characteristic according to different metal dusty material and machining accuracy, concrete forming step is as follows:
(1) metal dust is placed on powder bed, is warming up to suitable temperature；
(2) step (1) terminates rear laser beam according to two dimensional surface profile by metal dust cladding forming；
(3) after step (2) terminates, carry out second time spread powder, with scraper plate, powder bed surface is struck off, the most again according to step (1),
Step (2) order carries out the single track cladding forming of new a layer；Through repeatedly spreading powder, after single track cladding forming, remove not cladding
Powder and supporting construction, i.e. can get metal mouth mending material.
4. the method for claim 1, it is characterised in that described step 2 farther includes: CAD aid system is at mouth
During the dummy computer-aided design of chamber, metal rack is combined with artificial tooth junction design beneficially enhancement gold porcelain or bakes and moulds
In conjunction with retention system, these bit architectures include maintenance microballon, maintenance microsphere or increase bond area alveolate texture.
Priority Applications (2)
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| PCT/CN2017/084052 WO2017193981A1 (en) | 2016-05-12 | 2017-05-12 | Dental restoration cad/metal 3d automatic processing method |
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| CN107115156A (en) * | 2017-04-11 | 2017-09-01 | 上海上远齿科技术有限公司 | A kind of preparation method of pure titanium false tooth rack |
| WO2017193981A1 (en) * | 2016-05-12 | 2017-11-16 | 中国人民解放军第四军医大学 | Dental restoration cad/metal 3d automatic processing method |
| CN108113769A (en) * | 2017-12-22 | 2018-06-05 | 刘友烈 | The application of Jewel inlaying in artificial tooth and preparation method thereof |
| CN108176855A (en) * | 2017-12-28 | 2018-06-19 | 韩建涛 | A kind of laser solid forming preparation method of oral cavity metal restoration |
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| CN107115156A (en) * | 2017-04-11 | 2017-09-01 | 上海上远齿科技术有限公司 | A kind of preparation method of pure titanium false tooth rack |
| CN108113769A (en) * | 2017-12-22 | 2018-06-05 | 刘友烈 | The application of Jewel inlaying in artificial tooth and preparation method thereof |
| CN108176855A (en) * | 2017-12-28 | 2018-06-19 | 韩建涛 | A kind of laser solid forming preparation method of oral cavity metal restoration |
| CN108524033A (en) * | 2018-03-05 | 2018-09-14 | 深圳新致美精密齿研有限公司 | Prosthesis die and its 3D printing manufacture craft and its 3D printing device |
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| CN110693616A (en) * | 2019-11-15 | 2020-01-17 | 郝立顺 | Ceramic dental crown preparation method based on laser rapid prototyping SLA3D printing technology |
| CN111513882A (en) * | 2020-04-26 | 2020-08-11 | 四川大学 | Zirconia coping based on photocuring rapid prototyping and restoration manufacturing method |
| CN116586635A (en) * | 2023-05-17 | 2023-08-15 | 成都科宁达科技有限公司 | Method for improving bonding performance of TC4 titanium alloy gold porcelain through selective laser cladding |
| CN116586635B (en) * | 2023-05-17 | 2024-01-19 | 成都科宁达科技有限公司 | Method for improving bonding performance of TC4 titanium alloy gold porcelain through selective laser cladding |
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| WO2017193981A1 (en) | 2017-11-16 |
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