CN101647729A - Manufacture method of individual orthodontic appliance for tongue - Google Patents
Manufacture method of individual orthodontic appliance for tongue Download PDFInfo
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- CN101647729A CN101647729A CN200910192280A CN200910192280A CN101647729A CN 101647729 A CN101647729 A CN 101647729A CN 200910192280 A CN200910192280 A CN 200910192280A CN 200910192280 A CN200910192280 A CN 200910192280A CN 101647729 A CN101647729 A CN 101647729A
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Abstract
The invention discloses a manufacture method of an individual orthodontic appliance for a tongue, comprising the following steps: taking dental casts; manually arranging teeth for the dental casts; establishing a three-dimensional CAD model; plotting a plane of an arch wire and the arch wire; designing a single bracket CAD structural model; guiding the model into a quick wax model machine to obtain a wax model of the orthodontic appliance; casting the wax model to obtain a bracket after necessary surface treatment; putting the single bracket CAD structural model on the CAD models of original dental casts in a matching mode to obtain an integral CAD model; guiding the quick wax model machine to make the wax model; pressing a film of the wax model machine to obtain a positioning transfer tray and curving the arch wire according to a picture. The method can be used for realizing individual production according to individual requirements, and the prepared orthodontic appliance has the advantages of good matching with tooth shapes, high precision and permanence without deformation, is suitable for patients to wear for long and has small thickness, good supporting stability and convenient clinical operation. The method is widely applied to the production process of the orthodontic appliance.
Description
Technical field
The present invention relates to be used for the orthodontic appliance manufacturing technology of straightening of teeth, particularly a kind of DLP digital image projective technique rapid shaping manufacture method of individuation orthodontic appliance for tongue.
Background technology
For irregular tooth arrangement is neat, just abnormal technology is extensively adopted in clinical practice.The many brackets of lip side are rescued system through constantly improving, and its apparent size is basicly stable to get off.Along with increasing of adult patient, the important indicator of selecting bracket system that become whether attractive in appearance of orthodontic materials and technology.Although lip side bracket is fixedly rescued the improvement that system has carried out aspects such as miniaturization bracket, pottery or plastic, transparent matter material, appliance can't really be realized cryptomorphic effect all the time.Tongue side appliance should be optimal appliance attractive in appearance because bracket and arch wire all are bonded in the tongue side.But tongue side foreign body occur to tongue body stimulation, require to have influenced applying of this appliance to the influence of pronunciation and to the harshness of concrete operations.Through nearly 30 years groping and improving, tongue side appliance and rescue technology and reach its maturity has formed the treatment system that shows unique characteristics, and the influence of the daily functional activity of patient also has been reduced to the degree that can tolerate and adapt to.In China, because the needs of specific crowds such as high income group, performer, the tongue side is rescued technology and is also progressively promoted and come, at the just abnormal training of each universities and colleges so that private clinic all comes into effect this technology.
Orthodontic appliance can be divided into removable appliance and fixed appliance two big classes by the mode of its maintenance in the oral cavity.Fixed appliance is the universal product that standardized production has base plate and connected by steel disc, and for the tooth of Different Individual, appropriateness is lower.Because the configuration of surface of Different Individual tooth there are differences, the space of appliance base plate and dental surface is filled up by bonding agent.If dental surface curvature changes greatly, the bonding agent that then needs is more, causes the appliance base plate away from tooth surface, makes the patient feel uncomfortable, gets loose easily, finally influence rectifying effect, and the clinical manipulation difficulty is big.Removable appliance is simple in structure, can pluck voluntarily and wear, and helps the maintenance of oral hygiene, but accurate inadequately to the control of rescuing power.
Summary of the invention
In order to solve above-mentioned technical problem, overcome the shortcoming and defect of above-mentioned prior art, the DLP digital image projective technique rapid shaping manufacture method that the purpose of this invention is to provide the individuation orthodontic appliance for tongue, this method can not only realize customizing the high accuracy manufacturing according to individual variation, and the orthodontic appliance rectification effect that utilizes this method to produce is stable, reliable, comfortable wearing, and clinical manipulation is very convenient.
The technical solution adopted for the present invention to solve the technical problems is:
The manufacture method of individual orthodontic appliance for tongue is characterized in that may further comprise the steps:
(1) gets two pairs of above original dental moulds and one pair of tooth mould wherein arranged tooth;
(2) the tooth mould that sequences and one pair of original dental mould are changed into STL model or three-dimensional CAD model and be stored in the computer;
(3) STL model or the three-dimensional CAD model with the tooth mould that sequences imports in the three-dimensional CAD design software, get the arch wire plane, in this plane, draw arch wire shape CAD areal model according to the dental arch shape, again according to STL model or three-dimensional CAD model design personalized bracket base, design the appliance wing and groove according to the arch wire shape of drawing with moving towards again, finally obtain complete bracket cad model;
(4) described bracket cad model is imported in the cured type machine, produce the cured type of bracket;
(5) the cured type of described bracket is carried out hot investment casting, and, the bracket after the casting is done surface treatment according to clinical needs;
(6) in three-dimensional CAD software, be placed on described original STL model of step (2) or the three-dimensional CAD model and derivation according to the described bracket cad model of step (3) with mating, obtain whole three-dimensional CAD model;
(7) the whole three-dimensional CAD model that step (6) is obtained is made cured type with cured type mechanism;
(8) the described cured type of step (7) is carried out press mold, obtain the location tray of bracket on the original dental mould; Being placed into of bracket coupling that perhaps step (5) is obtained carried out press mold on the original dental mould, obtain the location tray of bracket on the original dental mould;
(9) the arch wire shape CAD areal model of being painted in the step (3) is bent arch wire.
Further, step (1) is got Ya Mo and according to the orthodontic treatment scheme tooth mould is arranged tooth with hard mould material.
Step (2) is measured tooth mould and original dental mould that step (1) sequences with scanner, changing into can be for the STL model of computer identification; Perhaps adopt the tooth of pencil CT (CONEBEAM CT) scan patients to obtain the dentition data, adopt the method for reverse engineering to set up the three-dimensional CAD model of tooth and be stored in the computer again.
The described three-dimensional CAD design software of step (3) is Pro/ENGINEER.
The described three-dimensional CAD design software of step (6) is Clay Tool.
The described cured type machine of step (4) and step (7) is the quick cured type machine of DLP.
The method of producing the cured type of appliance in the step (4) is for dividing layer manufacturing method thereof, the method that described layering is made is meant that utilization section software carries out layering with the three-dimensional CAD structural model of appliance, obtain the two dimensional model of each minute layer cross section, obtain the cured type of bracket by the quick cured type machine of DLP according to described two dimensional model.
Step (9) is exported the arch wire shape CAD areal model of being painted in the step (3) from computer and is carved out the pattern of arch wire true form size with accurate mark machine with DXF, CDR, PLT form, according to the manual arch wire that bends of engraving pattern, or adopt mechanical hand directly to bend arch wire according to the arch wire cad model.
Described lift height is 15～35 μ m, and adopts the interlayer cumulative errors compensation way control accuracy of manufacture.
The thickness of the bracket base of described appliance is 0.3～0.6mm.
The manufactured materials of described appliance is a kind of dental metal in billon, titanium alloy, cochrome, Palladium silver alloy or the rustless steel.
The manufactured materials of described arch wire is a kind of in rustless steel, titanium alloy or the marmem.
The invention has the beneficial effects as follows: the manufacture method of individuation orthodontic appliance for tongue can realize customizing and produce according to individual demand, realize the purpose of making to measure, utilized prepared appliance of this manufacture method and teeth patterning coupling, the precision height, the bracket total height is thin, comfortable wearing; Adopt computer precision positioning transfer tray, greatly facilitated clinical the installing and using of orthodontic appliance; Personalized design has realized that really bracket is different because of patient's difference, is fit to the rectification of the wrong jaw abnormalitys of all kinds of teeth, the anchorage good stability, and it is fast to open interlock, and the just abnormal time is short.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the manufacture method flow chart of steps of individual orthodontic appliance for tongue of the present invention;
Fig. 2 is the process chart of the DLP digital image projective technique rapid shaping manufacture method of individuation orthodontic appliance for tongue of the present invention;
Fig. 3 is the bracket structural representation that designs on the dental model three-dimensional cad model;
Fig. 4 is arch wire plane and the big logotype of setting up on the dental model three-dimensional cad model of arch wire;
Fig. 5 is the whole structural scheme of mechanism that the bracket three-dimensional CAD model reverts to original dental mould three-dimensional CAD model;
Fig. 6 is bracket three-dimensional CAD model and arch wire three-dimensional CAD model matching structure sketch map.
The specific embodiment
With reference to Fig. 1, the manufacture method of individual orthodontic appliance for tongue is characterized in that may further comprise the steps:
(1) gets two pairs of above original dental moulds and one pair of tooth mould wherein arranged tooth;
(2) the tooth mould that sequences and one pair of original dental mould are changed into STL model or three-dimensional CAD model and be stored in the computer;
(3) STL model or the three-dimensional CAD model with the tooth mould that sequences imports in the three-dimensional CAD design software, get the arch wire plane, in this plane, draw arch wire shape CAD areal model according to the dental arch shape, again according to STL model or three-dimensional CAD model design personalized bracket base, design the appliance wing and groove according to the arch wire shape of drawing with moving towards again, finally obtain complete bracket cad model;
(4) described bracket cad model is imported in the cured type machine, produce the cured type of bracket;
(5) the cured type of described bracket is carried out hot investment casting, and, the bracket after the casting is done surface treatment according to clinical needs;
(6) in three-dimensional CAD software, be placed on described original STL model of step (2) or the three-dimensional CAD model and derivation according to the described bracket cad model of step (3) with mating, obtain whole three-dimensional CAD model;
(7) the whole three-dimensional CAD model that step (6) is obtained is made cured type with cured type mechanism;
(8) the described cured type of step (7) is carried out press mold, obtain the location tray of bracket on the original dental mould; Being placed into of bracket coupling that perhaps step (5) is obtained carried out press mold on the original dental mould, obtain the location tray of bracket on the original dental mould;
(9) the arch wire shape CAD areal model of being painted in the step (3) is bent arch wire.
Further, step (1) is got Ya Mo and according to the orthodontic treatment scheme tooth mould is arranged tooth with hard mould material.
Further, step (2) is measured tooth mould and original dental mould that step (1) sequences with scanner, and changing into can be for the STL model of computer identification; Perhaps adopt the tooth of pencil CT (CONE BEAM CT) scan patients to obtain the dentition data, adopt the method for reverse engineering to set up the three-dimensional CAD model of tooth and be stored in the computer again.
As preferred embodiment, the described three-dimensional CAD design software of step (3) is Pro/ENGINEER.Described step (3) is determined the arch wire plane according to the tooth three-dimensional CAD model, and determines the arch wire trend and set up two-dimensional CAD model according to the inboard personal feature of tooth; Determine bracket bottom surface placement location according to the individual curved surface features of tooth inner surface again, and set up the personalized bottom surface match by three-dimensional CAD software, at last determine the direction and the size of the bracket wing and groove, thereby set up the three-dimensional CAD model of bracket according to bracket bottom surface and arch wire size and trend thereof.
The thickness of described bracket base is between 0.3～0.6mm, and can select different thickness because of the difference of the selection of material, and for realizing rectification effect preferably, the groove position of each bracket and shape can be determined according to specific requirement.
As preferred embodiment, the described cured type machine of step (4) and step (7) is the quick cured type machine of DLP.
Step (4) imports to described bracket three-dimensional CAD structural model in the quick cured type machine, adopts the method for layering manufacturing to produce cured type bracket entity, and described lift height is 15～35 μ m, and adopts the interlayer cumulative errors compensation way control accuracy of manufacture.The method of described layering manufacturing is meant that utilization section software carries out layering with the three-dimensional CAD structural model of bracket, obtains the two dimensional model of each minute layer cross section, is shaped to the bracket of cured material by quick cured type machine according to described two dimensional model.
As preferred embodiment, step (5) is carried out hot investment casting with the cured type of bracket, and according to clinical needs, the bracket after the casting is done surface treatment.Surface treatment comprises polishing, electrolysis and detection groove precision.
As preferred embodiment, step (6) is placed on the described original dental mould of step (2) the STL model in Clay Tool software the bracket three-dimensional CAD model and whole the derivation with mating, obtains whole three-dimensional CAD model.Wherein form is the STL form, and the STL form can be discerned by quick cured type machine.
As preferred embodiment, step (7) produces bracket and the whole cured type of original dental mould with same method in the step (4).
As preferred embodiment, step (9) is exported the arch wire shape CAD areal model of being painted in the step (3) from computer with DXF, CDR, PLT form, import the pattern of carving out arch wire true form size in the accurate mark machine, according to the manual arch wire that bends of engraving pattern, or adopt mechanical hand directly to bend arch wire according to the arch wire cad model.
The manufactured materials of described appliance is a kind of dental metal in billon, titanium alloy, cochrome, Palladium silver alloy or the rustless steel.
The manufactured materials of described arch wire is a kind of in rustless steel, titanium alloy or the marmem.
With reference to Fig. 2, as preferred embodiment, Fig. 2 is above-mentioned manufacture method step conversion concrete process chart, further the said method flow process is embodied as and can be convenient to implement at the steps flow chart of industrial enforcement.
With reference to Fig. 3, Fig. 3 is the tooth die shoe groove structural representation that imports in the step (3) among the three-dimensional CAD design software Pro/ENGINEER, finishes automaticity height, and precision height by computer aided design software.
With reference to Fig. 4, Fig. 4 is arch wire plane and the big logotype of setting up on the dental model three-dimensional cad model of arch wire, and this is the middle sketch map file that generates in the manufacture method process.
With reference to Fig. 5, Fig. 5 is the whole structural scheme of mechanism that step (6) bracket three-dimensional CAD model reverts to original dental mould three-dimensional CAD model, the three-dimensional CAD design software ClayTool that adopts, make manufacture process automaticity height by this computer aided design software, and fast, accurately and precision high.
Fig. 6 is bracket three-dimensional CAD model and arch wire three-dimensional CAD model matching structure sketch map.
More than be that preferable enforcement of the present invention is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite of spirit of the present invention, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (10)
1, the manufacture method of individual orthodontic appliance for tongue is characterized in that may further comprise the steps:
(1) gets two pairs of above original dental moulds and one pair of tooth mould wherein arranged tooth;
(2) the tooth mould that sequences and one pair of original dental mould are changed into STL model or three-dimensional CAD model and be stored in the computer;
(3) STL model or the three-dimensional CAD model with the tooth mould that sequences imports in the three-dimensional CAD design software, get the arch wire plane, in this plane, draw arch wire shape CAD areal model according to the dental arch shape, again according to STL model or three-dimensional CAD model design personalized bracket base, design the appliance wing and groove according to the arch wire shape of drawing with moving towards again, finally obtain complete bracket cad model;
(4) described bracket cad model is imported in the cured type machine, produce the cured type of bracket;
(5) the cured type of described bracket is carried out hot investment casting, and, the bracket after the casting is done surface treatment according to clinical needs;
(6) in three-dimensional CAD software, be placed on described original STL model of step (2) or the three-dimensional CAD model and derivation according to the described bracket cad model of step (3) with mating, obtain whole three-dimensional CAD model;
(7) the whole three-dimensional CAD model that step (6) is obtained is made cured type with cured type mechanism;
(8) the described cured type of step (7) is carried out press mold, obtain the location tray of bracket on the original dental mould; Being placed into of bracket coupling that perhaps step (5) is obtained carried out press mold on the original dental mould, obtain the location tray of bracket on the original dental mould;
(9) the arch wire shape CAD areal model of being painted in the step (3) is bent arch wire.
2, the manufacture method of individual orthodontic appliance for tongue according to claim 1 is characterized in that: step (2) is measured tooth mould and original dental mould that step (1) sequences with scanner, and changing into can be for the STL model of computer identification; Perhaps adopt the tooth of pencil CT (CONEBEAM CT) scan patients to obtain the dentition data, adopt the method for reverse engineering to set up the three-dimensional CAD model of tooth and be stored in the computer again.
3, the manufacture method of individuation orthodontic appliance for tongue according to claim 1 is characterized in that: the described three-dimensional CAD design software of step (3) is Pro/ENGINEER, and the described three-dimensional CAD design software of step (6) is Clay Tool.
4, the manufacture method of individuation orthodontic appliance for tongue according to claim 1 is characterized in that: the described cured type machine of step (4) and step (7) is the quick cured type machine of DLP.
5, the manufacture method of individuation orthodontic appliance for tongue according to claim 4, it is characterized in that: the method for producing the cured type of appliance in the step (4) is for dividing layer manufacturing method thereof, the method that described layering is made is meant that utilization section software carries out layering with the three-dimensional CAD structural model of appliance, obtain the two dimensional model of each minute layer cross section, obtain the cured type of bracket by the quick cured type machine of DLP according to described two dimensional model.
6, the manufacture method of individuation orthodontic appliance for tongue according to claim 1, it is characterized in that: step (9) is exported the arch wire shape CAD areal model of being painted in the step (3) from computer and is carved out the pattern of arch wire true form size with accurate mark machine with DXF, CDR, PLT form, according to the manual arch wire that bends of engraving pattern, or adopt mechanical hand directly to bend arch wire according to the arch wire cad model.
7, the manufacture method of individuation orthodontic appliance for tongue according to claim 5 is characterized in that: described lift height is 15～35 μ m, and adopts the interlayer cumulative errors compensation way control accuracy of manufacture.
8, the manufacture method of individuation orthodontic appliance for tongue according to claim 1 is characterized in that: the thickness of the bracket base of described appliance is 0.3～0.6mm.
9, the manufacture method of individuation orthodontic appliance for tongue according to claim 1 is characterized in that: the manufactured materials of described appliance is a kind of dental metal in billon, titanium alloy, cochrome, Palladium silver alloy or the rustless steel.
10, the manufacture method of individuation orthodontic appliance for tongue according to claim 1 is characterized in that: the manufactured materials of described arch wire is a kind of in rustless steel, titanium alloy or the marmem.
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