CN106037966B - A kind of mouth mending material CAD/ metals 3D automatization processing methods - Google Patents
A kind of mouth mending material CAD/ metals 3D automatization processing methods Download PDFInfo
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Abstract
The invention discloses a kind of brand-new mouth mending material automatization processing method, this method uses optical scanner and computer aided design system, the hybrid system processing mouth mending material of CAD accessory systems and selective laser cladding machine composition, existing oral cavity CAD system is combined by this method with metal 3D printing technique, reach quick personalized making metal mouth mending material, traditional planting body and its production method of superstructure can be changed, metal 3D printing processing is changed into from numerical control cutting processing, processing efficiency is greatly improved, personalized making can also be realized, it can also be combined if necessary with two kinds of processing modes of numerical control cutting secondary process, respectively take the chief, reach metal 3D printing and the perfect adaptation of numerical control cutting, overturn original planting body and its production method of superstructure.
Description
Technical field
The invention belongs to mouth mending material technical field, and in particular to a kind of new mouth mending material CAD/ metals 3D is automatic
Change processing method, existing oral cavity CAD system is combined by this method with metal 3D printing technique, reaches quick personalized making
Metal mouth mending material.
Background technology
CAD (Computer aided design, CAD) makes (Computer with area of computer aided
Aided manufacture, CAM) technology, has merged mathematics, optics, electronics, computer picture recognition and processing, automatic control
System is widely used in industrial automation and aviation with automating the multi-disciplinary knowledge and technology such as processing in the 1970s
Space industry.Nineteen eighty-three, First dental CAD/CAM system model machine that French Duret is developed come out in France;1985 in method
Professor Duret goes out first backteeth porcelain complete crown body using the equipment making and is successfully used to patient in state's world dentist's academic conference
Oral cavity so that CAD/CAM becomes a reality for dentistry field.After the nineties in last century is entered, with modern photoelectron
The further development of technology, computer technology image analyzing and processing technology etc., increasing dental CAD/CAM system come out.
At present, existing more than 10 kind CAD/CAM system comes out, and can make inlay, veneer, complete crown, part-crown, fixed bridge, planting body crane span structure
Deng.And do not have ripe system still in conceptual phase in removable partial denture and complete denture.Oral cavity CAD/CAM system
(CAM) three parts subsystem is generally made by data acquisition (digitlization stamp), CAD (CAD), area of computer aided
System composition.One emerging recovery technique of oral cavity initially forms, and CAD/CAM system makes Prosthodontics stride into modern high technology
Field.
1st, main CAD/CAM system
In current commercialized oral cavity CAD/CAM system, CNC milling machine is one of important part.Dummy is processed
Milling mode is controlled using CNC milling machine, to cut off excess stock, meets shape, size and surface roughness requirements to obtain
Dummy.Belong to de-material on the technological essence and make category, i.e., " subtraction " alleged by this area.
1.1 Cerec systems
Cerec systems are by Siemens (SIEMENS) dentistry portion, i.e., present German Xi Nuode (SIRONA) tooth
Equipment Co., Ltd of section develops and progressively improved.Its product line include Cerec I, Cerec II and Cerec III and
Cerec in Lab.Cerec III is the systems of Cerec III being born in 2000, and the system is based on windows platform, cutting system
Each worked independently with image acquistion system, software systems there has also been great raising so that the systems of Cerec III can make
Inlay, onlay, veneer, part-crown and complete crown.But the software systems of Cerec III can only be also designed in the plane, it is difficult to
Show the configuration of dummy.In March, 2003, Cerec 3D systems were first in the Hinman dentistry conferences of U.S. Atlanta
Secondary exhibition, it can introduce multidimensional angle of view when designing dummy, can be from the angle visual evaluation dummy and base of three-dimensional
The form of tooth.Cerec 3D software systems add the 3D design softwares such as FrameWork, realize the reparation of full porcelain fixed bridge.
Sirona companies in 2002 are proposed Cerec in Lab systems, are that it uses laser scanning exclusively for designed by skilled worker room
Systematic collection tooth jaw data, faster, the scope of application is wider for dummy manufacturing speed, and can use the titanium dioxide of higher intensity
Aluminium, zirconia ceramic material.
1.2 Celay systems
Celay systems are designed by Zurich tooth institute and put on display for the first time in Munich in nineteen ninety, now by Switzerland
Mikroma companies produce.The system is not CAD/CAM system in complete meaning, and its principle is similar to a small-sized key and replicated
Machine, be made up of two parts, touch sensor and Micro Milling Machine, sensing head " reading " go out on intraoral or die make have one
Determine the wax or resin dummy surface topography data of hardness, and data are delivered on milling machine simultaneously, synchronous processing goes out porcelain reparation
Body.System composition is simple, and automaticity is very low.During work temporarily, it is necessary to first make one on intraoral or die and repair
Complex, as the information source for obtaining data.Celay systems mainly have occlusal contour using the processing of aluminium dioxide machinable ceramic
The inlay or onlay of state, the substrate crown of complete crown or fixed bridge can also be processed.
1.3 Procera systems
Procera systems are Sweden's system, are introduced to the market by Nobel Biocare companies in 1993.Now, the system
Data on dentognathic model, Yi Shitong are collected using Procera Piccolo or more advanced Procera Forte scanners
The softwares of Procera Lofrwore 2.0 are crossed to be designed dummy, after data are sent to by internet
4 production centers (Stockholm, the Sweden that Procera systems are specified;Fair Lawn, NJ, USA;Karlskoga,
Sweden;Tokyo, Japan) carry out dummy processing.Machining center can require directly to be processed into final oxygen according to doctor
Change zirconium, aluminum oxide all-ceramic crown bridge, also can only be processed into zirconium oxide, alumina substrate carries out surface decorations porcelain again after postal is returned.
Procera systems can be also used for field of planting in addition to it can be used for making natural teeth corona.Procera systems can be cut
Single tooth base station of pure titanium or zirconium oxide is made, it can carry out individual character to the form profile of the height of base station, angle and edge line
Change design;Procera systems can also cut the plantation bridge for making pure titanium or zirconium oxide, and it can at most provide 14 units
Bridge is planted, possesses fabulous biocompatibility, remarkable intensity and aesthetic effect.
1.4 Cercon systems
Cercon systems are transferred to by data on Cercon Eye Scanner 3-dimensional laser scanning dentognathic models
Cercon Art CAD parts are designed to dummy, then that designed information transmission is right to Cercon Brain parts
Dummy carries out machining or is delivered to information by internet to add dummy positioned at York making center
Work makes.Therefore the Cercon Art of Cercon systems can be only bought for some small-sized dental clinic or skilled worker center
CAD parts (having contained Cercon Eye Scanner scanners), so as to reduce cost.Cercon Art CAD can be right
Prosthetic margin, close the fine design of face progress.Cercon systems can make stake using zirconium dioxide structural ceramics as processing object
Core, Abutment, complete crown and fixed bridge.
1.5 Lava systems
Lava systems were released by Minnesota Mining and Manufacturing Company in 2002, by Lava Scan, Lava CAD, Lava Form, Lava
The part such as Therm forms.Data on dentognathic model are collected first with contactless 3D photo-scanning systems, doctor utilizes Lava
The softwares of Design 4.0 carry out dummy design, after the completion of pass through first and cut pre-sintered zirconium dioxide porcelain block and obtain substrate
Hat, average per unit corona need 35 minutes.It is fully sintered to the progress of corona substrate crown after the completion of cutting, then banded on its surface
Face porcelain.Vita colorimetric systems are compareed, Lava zirconium dioxides substrate selects labeled with 7 kinds of colors, and facing porcelain has 16 kinds of color selections, because
The dummy that this Lava system makes possesses the color and luster and translucency closest to natural teeth, and the system is primarily adapted for use in suitable for leaf-comb
With the reparation of the front and rear unit fixed bridge of tooth 3~4.
1.6 Everest systems
Everest systems system was introduced to the market by German Kavo companies in 2002.The system by Everest scan,
Tetra- component compositions of Everest engine, Everest therm, Everest elements.First by Everest scan
Data on data presentation system (using CCD camera) collection dentognathic model, operator is using ENERGY CAD softwares to dummy
3-dimensional design is carried out, then CAM parts carry out machining dummy on five axles of X, Y, Z, A, B.Therefore Everest systems
The dummy of making has good machining accuracy and clearly anatomical structure.The machinable material of Everest systems is very
Extensively, including zirconium oxide, aluminum oxide, pure titanium, glass ceramics, gold, resin etc., can make planting body, veneer, inlay, onlay,
Leaf-comb and fixed bridge.
1.7 open system
Open system is that in the market occurs " assembling " type CAD/CAM system in recent years, its data collecting system, CAD
System, CAM system are assembled after being made by different companies and formed.The open system of comparative maturity has two kinds in the market
Scheme:
1) 3Shape dentistry dedicated scan instrument+CAD software+German numerically controlled lathe, it can process the oxidation of all brands
Zirconium, plastics, are not limited by brand;
2) 3Shape dentistry dedicated scan instrument+CAD software+U.S.'s 3D system wax pattern machines, can be with after wax pattern has been made
Embedding casting metal can also carry out the making of all-ceramic crown.
Compare with other CAD/CAM systems, be the advantages of open system:The material that can be processed is more extensive, makes
Cost is also cheaper.
2nd, the CAD/CAM system of increasing material manufacturing
Above-mentioned numerically controlled lathe can not cut dummy and working angles with labyrinth (as carried hollow structure)
In cause waste of material etc. turn into oral restoration advanced manufacturing technology in be badly in need of solve key issue.Rapid shaping technique,
Abbreviation RP or RPM technology (Rapid Prototyping/Rapid Prototyping Manufacturing), are 20th century 80
The advanced manufacturing technology that age end grows up.The technology is by CAD (CAD), computer-aided manufacturing
(CAM), computer numerical control (CNC) (CNC), elaborate servo driving, the advanced science such as laser and material science are integrated in one, taken
The thought of discrete-lamination accumulation, basic conception are: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 technologies can not directly make metal restoration to meet the needs of oral restoration.20th century 90
Age end is combined the Rapid Manufacturing Technology (Rapid Manufacturing, RM) of foundation by RP technologies and Laser Coating Technology
Dusty material successively cladding is accumulated to obtain Three-dimensional Entity Components by laser by the way of preset powdering or synchronous powder feeding system.Its
The drip molding of making has outstanding physicochemical property, and is not limited by labyrinth.RP technologies and RM technologies are equal in essence
Belong to and increase material making, i.e., " addition ".Gao Bo applied in " the laser solid forming method of oral cavity metal restoration " in 2003
State's patent of invention, authorized within 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 bottom or removalbe partial denture bracket, the latter are mainly used in the making of metal implant.
2.1 application in fixed repair
Bennett in 2004 has made cochrome and not respectively using the MCP Realizer equipment based on SLM technologies
The substrate crown of rust Steel material, fixed hat and fixed bridge, the corona external form after making are good.2005, French scholar Nadine should
The Phenix SLM systems researched and developed with oneself design and have made the substrate crown of nichrome, manufactured substrate crown profile, precision
Good, after cladding porcelain, the porcelain corona of making has extraordinary color-match and marginal.
2.2 application in removable partial denture
Williams in 2006 etc. has been made by CAD/CAM technologies on the machines of SLM Realizer 2 can pluck local justice
The cochrome support of tooth.Domestic Wu Lin etc. tentatively realizes the CAD 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. is to Kennendy Ⅰ tooth
Lieque damage removalbe partial denture bracket has carried out CAD with making.
2.3 application in complete denture
Complete denture complex shape, and the material for forming artificial tooth is various, complete denture CAD/CAM researchs relatively lag behind.In
High vigorous wait of PLA The Fourth Military Medical University of state passes through Surfacer softwares, designs half mouthful of metal base denture of the upper jaw, and
Go out upper half mouth base using laser solid forming technology preparatory processing.2008th, 2009, medical university of army of the Chinese People's Liberation Army the 4th
Learn the treatise Lasers Med Sci (2010) 25 that the high table laser fast forming that breaks out makes the pure titanium-base of the complete denture upper jaw:
309-315, Rapid Prototyping Journal Volume15Number22009133~136, and it is suitable to it
Conjunction property is studied, and clinical test results show that it makes precision and had much room for improvement.
3rd, limitations and developing direction of traditional CAD/CAM in clinical practice
Application of the CAD/CAM technologies in oral cavity field substantially increases remediation efficiency, shortens patient's treatment cycle, reduces
The pain of patient and reduce the labor intensity of technician so that Prosthodontics achieves revolutionary development.But facing
It there is problems in bed application process:CAD/CAM system is mainly used in fixed reparation field at present, and can pluck part
The main reason for not applied in artificial tooth and complete denture is the intrinsic limitation of the machining of CAD/CAM system, not single
The waste of material is caused, also make it that the dummy species of making is single, it is impossible to the dummy of machining composite.
In summary, if metal 3D printing technique can be substituted to the cutting manufacturing technology of traditional CAD/CAM system, tentatively
Referred to as oral cavity CAD/metal 3D printing system, by the idicatio that can preferably expand mouth mending material making and repair constitution
Amount.
The content of the invention
In view of the above-mentioned drawbacks of the prior art or insufficient, it is an object of the present invention to provide a kind of new oral cavity to repair
Existing oral cavity CAD system is combined by complex processing method, this method with metal 3D printing technique, reaches quick 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/ metals 3D automatization processing methods, it is characterised in that this method uses optical scanner
Oral restoration is processed with the hybrid system of computer aided design system, CAD accessory systems and selective laser cladding machine composition
Body, specifically include the following steps:
Step 1, has been routinely accomplished that patient is intraoral or the three-dimensional profile of the outer plaster cast of mouth is scanned and established and oral cavity agomphosis
The consistent data model of situation;
Step 2, according to the design principle of mouth mending material, set using the complete oral cavity of CAD accessory systems into the configuration of dummy
Meter and making, output data form are the compatible STL forms of selective laser cladding machine;
Step 3, the metal powder material that selective laser cladding machine is molded with SLM, the oral restoration that step 2 is obtained
Body CAD 3D data model, is separated into two dimensional surface data, and two dimensional surface outline data processing is carried out according to default order,
Successively add up, cladding deposit forming material powder, obtain metal mouth mending material.
Step 4, modeling or porcelain are baked on metal mouth mending material, completes the making of mouth mending material.
Selective laser cladding machine cladding deposit forming material powder wherein described in step 3 is lazy in vacuum
Property gas processing storehouse in, metal powder material is laid on metal substrate, individual layer powdering thickness is according to different metal powder material
Depending on the characteristic and machining accuracy of material, specific 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, second of powdering is carried out, is struck off powder bed surface with scraper plate, then again according to step
(1), step (2) sequentially carries out new one layer of single track cladding forming;Through powdering repeatedly, after single track cladding forming, removal was not melted
The powder and supporting construction covered, you can obtain metal mouth mending material.
Described step two further comprises:CAD accessory systems are in mouth mending material CAD, by gold
Category support is beneficial to promote the retention system that golden porcelain is combined or roasting modeling combines, these retention system bags with the design of artificial tooth junction
Include maintenance microballon, maintenance microballoon or the alveolate texture for increasing 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 planting body, the crane span structure of planting body superstructure, personalized base station.
The mouth mending material CAD/ metal 3D automatization processing methods of the present invention, innovation are:
1st, change traditional planting body and its production method of superstructure, metal 3D printing is changed into from numerical control cutting processing
Processing, processing efficiency are greatly improved, and can also realize personalized making, it may also be necessary to and two kinds of numerical control cutting secondary process
Processing mode combines, and respectively takes the chief, reaches metal 3D printing and the perfect adaptation of numerical control cutting, overturns original kind
The production method of implant and its superstructure.
2nd, during planting body 3D printing, appropriate silver ion powder can be mixed, reaches both antibacterials, and does not influence bone knot
The purpose of conjunction.
3rd, in CAD design, by metallic support and artificial tooth junction design it is special be beneficial to promote golden porcelain combined or
The retention system that roasting modeling combines:Such as maintenance microballon, maintenance microballoon or the alveolate texture for increasing bond area, pass through gold
The metallic support special construction for meeting design requirement is produced in category 3D printing, so as in the same of the roasting modeling of metallic support or porcelain
When, the adhesion of plastics or ceramics and metallic support is improved, the breakage rate of ceramics or plastics is reduced, is grown beneficial to mouth mending material
Phase stably exercises normal function.
4th, swashed using the optical scanner in the inventive method and computer aided design system, CAD accessory systems, selectivity
The hybrid system of light cladding machine composition, it can be placed on the flowing vehicles, such as car, ship, equivalent to the artificial tooth of a flowing
Digital manufacturing factory.
Brief description of the drawings
Fig. 1 is the optical scanner and computer aided design system, CAD accessory systems, selective laser that the present invention uses
The hybrid system structured flowchart of cladding machine composition;
Fig. 2 is the metal mouth mending material structure chart prepared by taking removable partial denture TC4 supports as an example;
Fig. 3 is dummy metallic support and ceramics or the form picture of plastics junction special construction;
Fig. 4 is the removable partial denture TC4 metallic support pictures that metal 3D printing is completed;
Fig. 5 is removable partial denture TC4 metallic support part special construction exhibiting pictures;
Fig. 6 is removable partial denture TC4 metals branch adhesive holder porcelain or roasting modeling photo;
Below in conjunction with drawings and examples, the present invention is described in further detail.
Embodiment
Referring to Fig. 1, the present invention provides a kind of new mouth mending material processing method, and this method uses optical scanner and calculating
The hybrid system processing mouth mending material of machine aided design system, CAD accessory systems and selective laser cladding machine composition.This is multiple
Syzygy system includes three parts, and Part I is optical scanner and computer aided design system, to complete mouth mending material
The collection of digital model;Part II is the CAD accessory systems of mouth mending material, to complete the calculating of mouth mending material configuration
Machine Computer Aided Design.Part III is the selective laser cladding machine of miniaturization, and the selective laser cladding machine act as metal 3D
The role of printing, the CAD data metal dust cladding accumulation molding for the mouth mending material completed will be designed.Specifically include following
Step:
Step 1, has been routinely accomplished that patient is intraoral or the three-dimensional profile of the outer plaster cast of mouth is scanned and established and oral cavity agomphosis
The consistent data model of situation;
Step 2, according to the design principle of mouth mending material, set using the complete oral cavity of CAD accessory systems into the configuration of dummy
Meter and making, output data form are the compatible STL forms of selective laser cladding machine;
Step 3, the metal powder material that selective laser cladding machine is molded with SLM, the oral restoration that step 2 is obtained
Body CAD 3D data model, is separated into two dimensional surface data, and two dimensional surface outline data processing is carried out according to default order,
Successively add up, cladding deposit forming material powder, obtain metal mouth mending material;
Step 4, modeling or porcelain are baked on metal mouth mending material, completes the making of mouth mending material.
Above-mentioned metal mouth mending material includes:1st, personalized metal pile nuclear, metal crown bridge, PFM crown and bridge substrate, can pluck
Partial denture metallic support, complete denture metal base;
2nd, personalized planting body, the crane span structure of planting body superstructure, personalized base station etc.;
The step 2 further comprises:CAD accessory systems are in mouth mending material CAD, by metal
Support is beneficial to promote the retention system that golden porcelain is combined or roasting modeling combines with the design of artificial tooth junction, and these retention systems include
Maintenance microballon, maintenance microballoon or the alveolate texture for increasing bond area, with increase ceramics or plastics and metallic support
Adhesion.
It is the detailed of the making of removable partial denture complex in a kind of mouth mending material that inventor provides below
Overall process:
1st, material and equipment
1.1 SLM material requesteds and equipment
Selective laser cladding machine (EOSINT M280, EOS Corp., Germany);
TC4 powder, spherical powder, particle diameter 15-53 microns (Ka Bente companies, the U.S.);
Optical scanner and computer aided design system (DWOS, Dental Wings companies, Canada).
1.2 other materials and equipment
Kang Te " water magic square " silicone rubber impression material (Kang Te gear divisions group, Switzerland);
Super hard gypsum (Hubei Bei Nuo dental materials Co., Ltd).
1.3 case selections and abutment preparation
Choose with male patient, 56 years old age, upper left jaw premolar teeth and first Molar, it is impossible to row plantation and fixed justice
Tooth reparation, the traditional Wei Taling metallic support formula removable partial denture reparations of voluntary row.
Removable partial denture is designed referring to Fig. 2, is the removable partial denture of tooth-borne type, and 13,17,23,27 are used as abutment,
Occlusal rest is placed, lip buccal side design snap ring, wide posterior palatal bar is major connector.Complete clinical abutment preparation.
The CAD and 3D printing of 1.4 removalbe partial denture brackets
Two pairs of patient oral cavity plaster casts are produced, one pair completes according to traditional lost-wax casting method and worn to patient
Wear.Another pair makes optical scanner and computer aided design system obtain the digital model of plaster cast, with 3shape companies
Removable partial denture design software complete removable partial denture TC4 supports CAD design figure (Fig. 2), it is emphasized that
14th, the special maintenance microballon structure (Fig. 3) of increase adhesion is designed in 15,16 edentulous regions, is then being selected with the data
The enterprising row metal 3D printing of selecting property laser melting coating machine, local alloy artificial tooth TC4 supports (Fig. 4) can be plucked by producing.Local justice can be plucked
Tooth TC4 metallic support part special construction exhibiting pictures are as shown in Figure 5.Printing and making parameter is 400W optical-fiber lasers, 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 of metal 3D printing, its cladding accumulate TC4 powder into
Type is in vacuum inert gas processing storehouse, TC4 dusty materials is laid on metal substrate, individual layer powdering thickness is according to different
Depending on the characteristic and machining accuracy of metal powder material, specific 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, second of powdering is carried out, is struck off powder bed surface with scraper plate, then again according to step
(1), step (2) sequentially carries out new one layer of single track cladding forming;Through powdering repeatedly, after single track cladding forming, removal was not melted
The powder and supporting construction covered, you can obtain that local alloy artificial tooth TC4 supports can be plucked.
1.5 can pluck the roasting modeling of local alloy artificial tooth TC4 supports or porcelain
Local alloy artificial tooth TC4 supports can plucked and modeling or porcelain are baked on the special construction of artificial tooth junction, completing oral cavity
The making (Fig. 6) of dummy.
It should be noted that the embodiment of the above is to aid in it will be understood by those skilled in the art that the present invention, the present invention are unlimited
In above-described embodiment, according to the method for the present invention, can also to the stake core of personalization, Guan Qiao, PFM crown and bridge substrate, part can be plucked
Denture or complete denture base;Or the crane span structure of personalized planting body, planting body superstructure, personalized base station etc. are various
The automatic of mouth mending material is processed.During planting body 3D printing, appropriate silver ion powder can be mixed, reaches both anti-
Bacterium, and the purpose of synosteosis is not influenceed.
Certainly, the optical scanner used in the inventive method and computer aided design system, CAD accessory systems and selection
Property laser melting coating machine composition hybrid system, can be placed on the flowing vehicles, such as car, ship, equivalent to flowing
Artificial tooth Digital manufacturing factory, provides for patient and more easily services.
Claims (2)
- A kind of 1. mouth mending material CAD/ metals 3D automatization processing methods, it is characterised in that this method using optical scanner and The hybrid system processing mouth mending material of computer aided design system, CAD accessory systems and selective laser cladding machine composition, Specifically include the following steps:Step 1, has been routinely accomplished that patient is intraoral or the three-dimensional profile of the outer plaster cast of mouth is scanned and established and oral cavity agomphosis situation Consistent data model;Step 2, according to the design principle of mouth mending material, using the complete oral cavity of CAD accessory systems into dummy configuration design with Make, output data form is the compatible STL forms of selective laser cladding machine;Described mouth mending material includes:It is personalized Stake core, Guan Qiao, PFM crown and bridge substrate, removalbe partial denture bracket or complete denture base;Metallic support and the design of artificial tooth junction are beneficial to by CAD accessory systems in mouth mending material CAD Promote the retention system that golden porcelain combines or roasting modeling combines, these retention systems include maintenance microballon, maintenance microballoon or increasing The alveolate texture of big bond area;Step 3, the metal powder material that selective laser cladding machine is molded with SLM, the mouth mending material that step 2 is obtained CAD 3D data model, two dimensional surface data are separated into, two dimensional surface outline data processing is carried out according to default order, by Layer is cumulative, cladding deposit forming material powder, obtains metal mouth mending material;Step 4, modeling or porcelain are baked on metal mouth mending material, completes the making of mouth mending material.
- 2. the method as described in claim 1, it is characterised in that the selective laser cladding machine cladding accumulation described in step 3 Metal powder material shaping is in vacuum inert gas processing storehouse, metal powder material is laid on metal substrate, single berth Depending on characteristic and machining accuracy of the powder thickness for foundation different metal dusty material, specific 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 of powdering, powder bed surface is struck off with scraper plate, then again according to step (1), Step (2) sequentially carries out new one layer of single track cladding forming;Through powdering repeatedly, after single track cladding forming, not cladding is removed Powder and supporting construction, you can obtain metal mouth mending material.
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