Specification
Name of invention: Digital prosthetic manufacturing method and manufacturing system, applied to the denture hole guider and manufacturing method
Technical Field
[One]
The present invention relates to a digital prosthetic manufacturing method and manufacturing system, a denture hole guider and a manufacturing method applied thereto. It relates to a manufacturing method.
Background
[2]
Generally, dentures or prostheses are intraoral periodontal tissues that artificially restore appearance and function by replacing defective natural teeth. Such dentures or prostheses may be installed inside the oral cavity to restore chewing function and prevent deformation of the periodontal tissue, and may be divided into partial / complete dentures and partial / complete prostheses according to the number of missing teeth.
[3]
In this case, the denture is installed by attaching a dental adhesive to the inner surface side groove and bonded to the surface of the gum, the prosthesis may be installed in the oral cavity through a fixture placed in the alveolar bone. In this case, since the denture is supported by the gum, deformation of the gum or a large amount of foreign body is caused, and thus the amount of prosthetics supported by the alveolar bone is increasing.
[4]
On the other hand, the prosthesis is formed with a coupling hole in which the support cylinder is fixed.
[5]
In detail, a perforation is formed in the alveolar bone and a fixture is implanted. When the abutment is installed in the fixture, the support cylinder is coupled to the abutment so that the prosthesis is installed inside the oral cavity. In this case, the fixture / abutment and the support cylinder may be provided in plural places according to the size of the prosthesis, and the support prosthesis may be stably installed as each support cylinder is matched to each fixture / abutment in one-to-one correspondence. have.
[6]
However, in the related art, by using a method of fixing the support cylinder after processing the coupling hole in the prosthesis by predicting the installation position of the pre-prosthesis and the installation position of the fixture / abutment, The positional deviation had a big problem.
[7]
In detail, in the related art, after fastening the support cylinder to a fixture / abutment placed and installed in the alveolar bone, the prosthesis formed first with a wide size of the coupling hole in consideration of manufacturing error is positioned inside the oral cavity. Then, the coupling hole is expanded according to the positional deviation from the support cylinder, and when the processing of the coupling hole is completed in a size that allows the support cylinder to be fully inserted, the prosthesis is temporarily fixed to a predetermined installation position.
[8]
Subsequently, the process of initial installation of the prosthesis is completed while the coupling hole and the support cylinder are combined by injecting and curing a resin between the coupling hole and the support cylinder. Due to this, there is a problem that the installation process of the prosthetic becomes very complicated, and the cured resin has a problem that the installation stability and durability of the prosthesis are lowered because the support force for the prosthetic body is weak and easily separated.
[9]
In order to improve this, a method of manufacturing a prosthesis by using an impression coping to the fixture and acquiring an impression on the target archery has been used. That is, the prosthesis is manufactured by forming a model of the target archery using the obtained inner profile of the impression, and setting the position and angle of the coupling hole based on the impression coping.
[10]
However, in the case of the impression acquisition method described above, there was a problem of causing discomfort to the prosthetic subject due to a foreign body feeling when the impression was acquired. In addition, the burden of the operator is increased due to the complex and high difficulty of various process steps, and the error of each process step is often overlapped, which causes a problem of deterioration of precision.
Detailed description of the invention
Technical challenges
[11]
In order to solve the above problems, the present invention is to provide a digital prosthetic manufacturing method and manufacturing system that improves the convenience and precision of manufacturing, and to provide a denture hole guider and manufacturing method applied thereto.
Challenge solution
[12]
In order to solve the above problems, the present invention obtains a three-dimensional working image displaying the occlusion information between the clavicle arch and the implantation information of the fixture to be placed in the target arch, from the target arch, combined with the avert A first step of preparing a provisional prosthesis in which an engagement region formed corresponding to the engagement portion profile of the alignment is arranged; A second step of obtaining an auxiliary scan image for the temporary prosthesis; A third step of acquiring a corrected surface image of the three-dimensional surface information of the inner surface side matching groove of the temporary prosthesis including the coupling area in the auxiliary scan image; And a fourth step of designing and manufacturing a digital prosthesis having a virtual coupling groove corresponding to the position and shape of the three-dimensional surface information of the coupling region in an inner profile set according to the three-dimensional surface information of the matching groove. It provides a prosthetic manufacturing method.
[13]
The present invention also provides an image pickup apparatus for acquiring an auxiliary scan image for a temporary prosthesis in which a coupling area formed to correspond to an abutment fastened to a fixture placed in a target archery is arranged. Acquire a correction surface image for the three-dimensional surface information of the inner surface-side matching groove of the temporary prosthesis including the coupling area in the auxiliary scan image, and sets the inner profile according to the three-dimensional surface information of the matching groove A planning unit for designing a digital prosthesis by setting a virtual coupling groove corresponding to the position and shape of the 3D surface information of the coupling region in the profile; And a manufacturing apparatus for manufacturing the designed digital prosthesis.
[14]
The present invention also provides a denture hole guider for forming a coupling hole in which a support cylinder is installed in a denture mounted on a target arch, wherein the fitting information and the denture corresponding to the denture are placed in the target arch. A first step of obtaining a three-dimensional working image on which the image is displayed; A second step of setting a virtual coupling hole corresponding to the insertion information of the fixture; And a third step in which the outer profile is set according to the three-dimensional surface information of the inner side grooves of the denture image, but a virtual alignment hole is superimposed and aligned with the extension area of ​​the virtual coupling hole to design and manufacture the denture hole guider. It provides a manufacturing method including a denture hole guider.
[15]
In addition, the present invention corresponds to the protrusion formed corresponding to the three-dimensional surface information of the fitting groove in one surface portion to be inserted into the fitting groove of the denture in order to form a coupling hole in which the support cylinder is installed in the denture mounted on the target arch Shaping part; And an alignment hole which is formed to penetrate the corresponding coupling portion so that the punching position and angle of the coupling hole are guided and overlaps with the extension area of ​​the virtual coupling hole set according to the placement information of the fixture displayed on the 3D work image. It provides a Denture Hall guider.
Effects of the Invention
[16]
Through the above solution, the present invention provides the following effects.
[17]
First, unlike the conventional method of acquiring an impression on the target archery, a simple and high precision digital prosthesis can be designed and manufactured using a three-dimensional working image. In addition, the design information of the digital prosthesis obtained by 3D vector data can be easily stored and managed, and the manufacturing convenience can be improved since easy repeatable manufacturing is possible when the prosthesis is damaged or lost.
[18]
Second, the surface profile of the target archery and the implantation information of the fixture are replaced and corrected with the images obtained for the temporary prosthesis and the supporting cylinder installed in the temporary prosthesis. Therefore, since the high-precision image having the minimum variation of vibration / vibration / distortion generated in the image acquisition process on the inside of the oral cavity is used in the design process of the joining groove and the coupling groove of the digital prosthesis, the precision can be improved.
[19]
Third, a simple method of deleting unnecessary image parts from the 3D surface information obtained by scanning the temporary prosthesis, the design information precisely corresponding to the target archery and the bonding area is clearly exposed and obtained. Therefore, the precision of the digital prosthesis designed and manufactured based on this can be significantly improved.
[20]
Fourth, the denture hole guider can be easily converted into a temporary prosthesis that can be installed in the target archery through the fixture and support cylinder. In addition, as the coupling hole formed in the denture hole guider is set to precisely correspond to the position of the fixture / support cylinder, precision machining of the coupling hole is possible.
Brief description of the drawings
[21]
1 is a flow chart showing a digital prosthesis manufacturing method according to an embodiment of the present invention.
[22]
Figure 2 is a block diagram showing a digital prosthetic manufacturing system according to an embodiment of the present invention.
[23]
Figure 3 is an exemplary view showing a base occlusal image in the digital prosthetic manufacturing method according to an embodiment of the present invention.
[24]
Figure 4 is an exemplary view showing a surface image in the digital prosthetic manufacturing method according to an embodiment of the present invention.
[25]
5 is an exemplary view showing a design process of the coupling hole in the digital prosthetic manufacturing method according to an embodiment of the present invention.
[26]
6 is an exemplary view illustrating a design process of a denture hole guider in the method of manufacturing a digital prosthesis according to an embodiment of the present invention.
[27]
7A and 7B are exemplary views illustrating a coupling hole drilling process using a denture hole guider manufactured by a digital prosthesis manufacturing method according to an embodiment of the present invention.
[28]
8 is a bottom view showing a temporary prosthesis in which a coupling hole is corrected through a method of manufacturing a digital prosthesis according to an embodiment of the present invention.
[29]
9A and 9B are exemplary views illustrating a process of obtaining a corrected surface image in a method of manufacturing a digital prosthesis according to an embodiment of the present invention.
[30]
10A and 10B are exemplary views illustrating a process of designing a digital prosthesis through a correction surface image in the method of manufacturing a digital prosthesis according to an embodiment of the present invention.
[31]
11 is an exploded perspective view showing a digital prosthesis manufactured by the method of manufacturing a digital prosthesis according to an embodiment of the present invention.
Best Mode for Carrying Out the Invention
[32]
Best Modes for Carrying Out the Invention The best embodiments of the invention will be described in more detail below with reference to the accompanying drawings.
Embodiment for Invention
[33]
Hereinafter, with reference to the accompanying drawings will be described in detail the digital prosthetic manufacturing method and manufacturing system according to the preferred embodiment of the present invention, the denture hole guider and manufacturing method applied thereto.
[34]
1 is a flowchart illustrating a method for manufacturing a digital prosthesis according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a system for manufacturing a digital prosthesis according to an embodiment of the present invention.
[35]
As shown in Figures 1 to 2, the method of manufacturing a digital prosthesis according to the present invention is corrected based on the three-dimensional work image acquisition (s210), provisional prosthetic preparation (s220), secondary scan image acquisition (s230), secondary scan image Surface image acquisition (s240), and the process such as the design and manufacturing of the digital prosthesis using the correction surface image (s250).
[36]
On the other hand, in the present embodiment, the digital prosthetic manufacturing method is described and illustrated as an example of the manufacturing process of the complete prosthesis which is installed inside the oral cavity in which one side of the upper jaw or the lower jaw is both edentulous or upper and lower jaw. Of course, the digital prosthetic manufacturing method according to the present invention can be equally applied to the partial prosthetic manufacturing process.
[37]
The digital prosthetic manufacturing method according to the present invention may be performed using the digital prosthetic system 100 including the imaging apparatus 10, the planning unit 20, and the manufacturing apparatus 30. In this case, it is preferable that the imaging device 10 be understood as a concept encompassing an oral scanner and a CT imaging device. Of course, the manufacturing method of the denture hole guider described below may also be performed using the digital prosthetic manufacturing system 100.
[38]
3 is an exemplary view showing a base occlusal image in the digital prosthetic manufacturing method according to an embodiment of the present invention, Figure 4 is an exemplary view showing a surface image in the digital prosthetic manufacturing method according to an embodiment of the present invention, Figure 5 is an exemplary view showing a design process of the coupling hole in the digital prosthetic manufacturing method according to an embodiment of the present invention. And, Figure 6 is an exemplary view showing the design process of the denture hole guider in the digital prosthetic manufacturing method according to an embodiment of the present invention, Figures 7a and 7b through the method of manufacturing a digital prosthesis according to an embodiment of the present invention Exemplary drawing showing a coupling hole drilling process using a manufactured denture hole guider.
[39]
As shown in Figs. 3 to 7b, first, a three-dimensional working image 1d is displayed from which the occlusal information between the opposing arches and the implantation information of the fixture placed in the target archery are displayed (s210 of FIG. 1). .
[40]
Here, the target archery means the archery for which the prosthetic treatment is required, and hereinafter, the case where the target archery is a mandible is described and illustrated. In addition, it is preferable that the clam arch is understood as a arch that opposes the target arch.
[41]
In addition, the occlusal information means an occlusal vertical dimension between the target arch and the arch of the arch to provide a suitable sensitivity to the prosthetic. In addition, the implantation information of the fixture means information indicating the position and the implantation angle of the fixture to be placed or implanted in the target archery. In addition, the implantation information of the fixture preferably includes information on the shape, position and angle of the abutment fastened to the fixture.
[42]
In this case, the implantation information of the fixture may be obtained based on the fixture image displayed in the 3D work image 1d when the actual fixture is pre-established in the target archery. Alternatively, when the fixture is not placed in the target archery, the fixture may be acquired based on a virtual fixture 7d that is virtually arranged based on the periodontal tissue information displayed in the 3D image 1d.
[43]
In addition, the 3D work image 1d may be understood as image data representing periodontal tissue information such as gums, teeth, and alveolar bone for the target arch and the clavicle arch. The 3D work image 1d may be obtained through the oral cavity scanner or the CT imaging apparatus, or may be obtained by matching or matching two or more image data.
[44]
The 3D working image 1d may be obtained by matching the surface image 1b and the base occlusal image 1c. Here, the base occlusal image (1c) means that the denture is mounted on the target arch, the image obtained through the oral scanner in the occlusal state of the denture and the clavicle arch.
[45]
In this case, the denture is intended for the prosthetic subject, and refers to an artificial periodontal tissue adhesively fixed with a dental adhesive without using a fixture / abutment / support cylinder. In addition, the temporary prosthesis or digital prosthesis described later refers to an artificial periodontal tissue installed in the target arch through the fixture / abutment / support cylinder.
[46]
In detail, referring to FIG. 3, the base occlusal image 1c includes a denture image 5c representing the surface shape information of the denture and a target arch image 2c representing partial surface shape information of the target arch. ) Is displayed. In addition, a clavicle arch image 3c representing surface shape information such as gums and teeth of the clavicle arch is displayed.
[47]
At this time, the base occlusal image (1c) is obtained in a state in which the antagonist arch in which the implant or the remaining tooth is present is engaged with the denture mounted on the target arch. Therefore, the denture image 5c can be displayed with the vertical diameter suitable for the prosthetic person and installed in close contact with the target arch.
[48]
Of course, when there is no denture in use, an occlusal alignment base coated with an impression material is disposed between the target arch and the clavicle arch, and the vertical height is calculated by adjusting the thickness of the occlusal alignment base according to the chewing sensitivity of the prosthetic subject. can do. In addition, a process of manufacturing a denture having an artificial gum part and an artificial tooth part reflecting the impression profile of the impression material and the calculated vertical diameter may be performed. Here, the artificial gum portion is formed with a joining groove to be joined to the surface of the target archery through the impression material. The artificial tooth part may be formed at a height corresponding to the chewing area of ​​the clavicle arch from the surface of the artificial gum part based on the occlusal information.
[49]
In addition, referring to FIG. 4, the surface image 1b may be obtained by photographing the target arch of the denture from which the denture is removed with the oral cavity scanner. Accordingly, the surface image 1b may display a target archery image 2b representing surface shape information of the gum of the target archery covered by the denture. Of course, the surface image 1b may be displayed based on a three-dimensional image by inverting the three-dimensional surface information of the inner side profile groove profile of the denture or the inner side profile groove profile of the denture.
[50]
In this case, when the fixture is pre-established in the target archery, a fixture image 7b representing the shape information of one end side of the fixture may be displayed on the surface image 1b. In detail, a polygonal fastening groove for fastening with the abutment is formed at one end of the fixture, and the fastening groove image 71b corresponding to the surface shape of the fastening groove is displayed on the fixture image 7b. do.
[51]
Meanwhile, the surface image 1b and the base occlusal image 1c may be obtained through the imaging device 10 of FIG. have. In addition, the surface image 1b and the base occlusal image 1c transmitted to the manufacturer-side server may be matched through the planning unit 20 of FIG. 2 to be obtained as the 3D working image 1d. . Here, the surface image (1b) and the base occlusal image (1c) can be matched through a common part such as the gum surface exposed to the outside of the denture, using a marker or the like already installed on the gum surface of the target arch May be matched.
[52]
At this time, the design process of a series of denture hole guiders or digital prostheses described later based on the 3D work image 1d may be performed through the planning unit 20 of FIG. 2. In detail, the planning unit 20 of FIG. 2 may be provided as a PC that is connected to the manufacturer's server and can perform arithmetic processing for each image. Then, the 3D work image 1d is obtained through the planning unit 20 of FIG. 2, and each process step such as the design of the denture hole guider or the digital prosthesis may be performed or supported. have.
[53]
Meanwhile, referring to FIG. 5, in the three-dimensional working image 1d, the gum surface shape information of the target archery covered by the denture is included in the surface image (1b of FIG. 4) based on the vertical diameter. The target archery image (2b of FIG. 4) is displayed and replaced. Accordingly, the 3D working image 1d is displayed with the basic target archery image 2d representing the substantial surface shape information of the target archery. In addition, the basic sagittal arch image 3d representing the surface shape information of the archae arch can be arranged in correspondence with the basic target arch image 2d and the vertical height.
[54]
In addition, a basic denture image 5d representing the surface shape information of the denture is displayed on the three-dimensional working image 1d, and a placement of a fixture pre-established in the target archery is displayed on the basic target archery image 2d. Information can be displayed. At this time, the placement information of the fixture is preferably understood as the fastening groove image (71b of FIG. 4).
[55]
Alternatively, in the state where no fixture is implanted in the target archery, the virtual fixture 7d may be virtually disposed on the basic denture image 5d in the 3D work image 1d.
[56]
Here, the virtual fixture 7d and the virtual abutment 8d and the virtual support cylinder 9d described below are three-dimensional outline information of the physical fixture, abutment and support cylinder, which are placed in the actual target archery, respectively. Means. Furthermore, the virtual fixture 7d, the virtual abutment 8d, and the virtual support cylinder 9d have a concept of encompassing vector data corresponding to the three-dimensional outline information and three-dimensional images corresponding to the vector data. It is desirable to understand. The three-dimensional appearance information may be directly obtained by scanning or CT imaging the fixture, abutment and support cylinder of the real object, and may be stored in a database in the storage unit 20 of FIG. have.
[57]
In addition, the virtual arrangement is preferably understood as a concept encompassing that three-dimensional appearance information corresponding to the real object is imaged and displayed or three-dimensional coordinates are calculated in the three-dimensional working image 1d.
[58]
In this case, as the virtual fixture 7d is virtually disposed in the three-dimensional work image 1d, the surface shape of the fastening groove which is the fitting information of the fixture for guiding the placement position of the fixture actually placed in the oral cavity. Information and implantation angle can be calculated.
[59]
Of course, the CT image of the target arch and the clavicle arch may be further acquired in the process of acquiring the three-dimensional working image 1d.
[60]
In detail, the CT image may be obtained through the CT imaging apparatus, and may include information about internal tissues such as the shape, density, and neural tissue of the alveolar bone. In this case, when the fixture is pre-set in the target archery, the position and the implantation angle of the pre-established fixture may be further displayed.
[61]
The base occlusal image 1c, the surface image 1b, and the CT image may be matched and matched through the planning unit 20 of FIG. 2 to be obtained as the three-dimensional working image 1d. Accordingly, the three-dimensional working image 1d displays tissue information such as alveolar bone of the target arch, shape information and nerve tissue image of the gum, tissue information such as alveolar bone and tooth of the clavicle and the shape information of the gum, etc. Can be.
[62]
In this case, when the fixture is pre-established in the target archery, the placement information of the fixture displayed on the CT image is matched or matched with the basic target archery image 2d in the 3D work image 1d. Can be displayed.
[63]
Or, if the fixture is not implanted in the target arch, the virtual fixture (7d) at the position and angle suitable for the periodontal tissue of the prosthetic subject using the tissue and nerve information of the target arch included in the CT image ) May be virtually deployed. Of course, in some cases, the 3D working image 1d may be obtained by matching the CT image and the surface image 1b with each other.
[64]
In the following description, the virtual fixture 7d displayed on the 3D working image 1d is understood to include image information of a fixture displayed on the CT image by being directly captured by 3D vector data being imaged and virtually arranged. This is preferred.
[65]
In detail, when the 3D work image 1d is obtained (s210 of FIG. 1), the virtual coupling hole 501d is preliminarily set to correspond to the implantation information of the fixture. Here, the virtual coupling hole 501d may be understood as three-dimensional image or three-dimensional vector data virtually disposed in the three-dimensional working image 1d as design information of the coupling hole, which is a perforation part actually formed in the temporary prosthesis. .
[66]
In detail, the virtual coupling hole 501d may be set to cylindrical region information corresponding to the outer diameter of the support cylinder. The virtual coupling hole 501d may be virtually arranged by being primarily set in three-dimensional coordinates in the three-dimensional work image 1d based on the placement information of the fixture.
[67]
At this time, the virtual abutment 8d and the virtual support cylinder 9d correspond to the placement information of the virtual fixture 7d so that the virtual coupling hole 501d is disposed at a more accurate position. It may be arranged virtually in the dimensional working image 1d. The virtual coupling holes 501d are aligned to match the outer regions of the virtual support cylinders 9d virtually disposed in the 3D work image 1d.
[68]
Furthermore, the basic denture image 5d included in the three-dimensional working image 1d is displayed in a state where the fitting groove is in close contact with the target arch. Therefore, the virtual coupling hole 501d may be accurately set by accurately reflecting the fixture / abutment / support cylinder placement position and the installation position of the denture.
[69]
Here, the support cylinder is coupled to the abutment fastened to the fixture placed in the target arch, protrudes from the alveolar bone or gum surface of the target arch, is fixed to the coupling hole formed in the temporary prosthesis to the temporary prosthesis I can support it.
[70]
In addition, the number of implantation and the position of the fixture may be set to support the chewing pressure calculated according to the number of clam teeth and the like interlocked with the temporary prosthesis. When the number of implants and the positions of the fixtures are set, an implantation angle of each fixture may be set in consideration of the alveolar bone shape, density, and neural tissue corresponding to each position.
[71]
For example, when the target archery is a mandibular mandibular jaw, the number and positions of the fixtures can be set to four places such as two anterior teeth and two posterior teeth.
[72]
At this time, the anterior alveolar bone has a large amount of alveolar bone at the periphery and there is no distribution of neural tissue, so the implantation angle of the anterior side fixture can be set in the vertical direction. The posterior alveolar bone has no alveolar bone at one side or the other periphery adjacent to the end of the mandible, and the neural tissue is distributed at the lower side. Therefore, the implantation angle of the posterior posterior fixture of the lower jaw may be set in the inclined direction to avoid the neural tissue and to form a strong support force.
[73]
The support cylinder is coupled to the abutment fastened to the fixture, and the abutment is a straight abutment and a bent multi abutment such that the support cylinder is arranged toward the clavicle arch. It may be provided as.
[74]
That is, the straight general abutment is fastened to the anterior fixture, and the fixture, the general abutment, and the support cylinder may be arranged in a vertical direction. The bent multi abutment is fastened to the posterior side fixture. In this case, the multi abutment may be bent in correspondence with the inclined insertion angle of the fixture, but the support cylinder may be supported in the vertical direction as the upper end extends in the vertical direction.
[75]
Meanwhile, when the virtual support cylinder 9d is virtually arranged in the 3D work image 1d, the virtual coupling hole 501d may be aligned and moved according to the 3D coordinates of the virtual support cylinder 9d.
[76]
In detail, when a perforation is formed in the target archery, the fixture is implanted in the perforation and the abutment is fastened to the implanted fixture. When the support cylinder is coupled to the fastened abutment, the temporary prosthesis is installed in the target arch as the coupled support cylinder is fixed to the coupling hole.
[77]
Of course, the temporary prosthesis may be installed in the target archery by being coupled to the abutment in a state where the support cylinder is integrally fixed to the coupling hole. Alternatively, the temporary prosthesis may be installed in the target archery by being fixed in the coupling hole while the support cylinder and the abutment are coupled to each other. Further, the support cylinder and the abutment are preferably provided, respectively, in some cases, the support cylinder and the abutment may be provided to be integrally connected.
[78]
In this case, the virtual coupling hole 501d is set based on the overlapping area of ​​the basic denture image 5d and the virtual support cylinder 9d displayed on the 3D working image 1d, and further adds a predetermined tolerance area. It is preferably set to include. That is, the virtual coupling hole 501d may be set to extend radially outward from the overlapping area.
[79]
Furthermore, the virtual abutment 8d and the virtual support cylinder 9d are virtually arranged in the three-dimensional work image 1d based on the placement information of the fixture. Accordingly, the position of the fixture / abutment / support cylinder actually placed in the target archery based on the three-dimensional work image 1d on which the virtual abutment 8d and the virtual support cylinder 9d are virtually arranged. The relationship can be predicted accurately. In addition, since the predicted position of the fixture / abutment / support cylinder is reflected in the design process of the virtual coupling hole 501d, the virtual coupling hole 501d may be precisely set.
[80]
Here, in the virtual arrangement of the virtual abutment 8d, the three-dimensional coordinates of the other end side mating surface of the virtual abutment 8d are the three-dimensional coordinates of the one end side mating surface of the virtual fixture 7d. It may further comprise the step of moving three-dimensionally so as to overlap with each other. At this time, the three-dimensional movement is preferably understood as a concept encompassing the actual movement of the three-dimensional appearance information image corresponding to the real in the three-dimensional working image (1d) and the three-dimensional coordinates are recalculated.
[81]
In detail, one end of the fixture is formed with a polygonal fastening groove, and the other end of the abutment is formed with a protrusion-shaped mold fastening portion that is joined to the fastening groove. Accordingly, one end side mating surface of the virtual fixture 7d is a recessed surface corresponding to the fastening groove, and the other end side mating surface of the virtual abutment 8d is a protruding surface corresponding to the mold engaging part. It is desirable to understand.
[82]
At this time, the three-dimensional position of the virtual abutment 8d and the virtual support cylinder 9d is adjusted such that the three-dimensional coordinates of the recessed surface and the three-dimensional coordinates of the protruding surface overlap each other. Therefore, the position where the virtual abutment 8d and the virtual support cylinder 9d are virtually disposed may correspond exactly to the position of the abutment and the support cylinder that is placed in the actual target archery, and the virtual coupling hole ( 501d) can be designed more precisely.
[83]
When the virtual coupling hole 501d is first or preliminarily set on the 3D work image 1d, the temporary prosthesis in which the coupling holes corresponding to the virtual coupling hole 501d are arranged is prepared. (S220 in FIG. 1).
[84]
Here, it is preferable that the temporary prosthesis is understood to mean that the coupling hole is perforated on the adhesive denture, and that the artificial tooth part and the artificial gum part are integrally manufactured through three-dimensional printing and the like, but the coupling hole is preformed or post-punched. .
[85]
In addition, the denture hole guider is preferably understood as an apparatus for guiding drilling of a coupling hole formed to fix the support cylinder to the temporary prosthesis. The method for manufacturing a denture hole guider includes processes such as obtaining the three-dimensional work image, establishing a virtual coupling hole, and designing and manufacturing the denture hole guider. On the other hand, the denture described later is preferably understood as the adhesive denture.
[86]
Hereinafter, an example of manufacturing the denture hole guider and drilling the coupling hole in the denture to process the temporary prosthesis will be described first, followed by an example of manufacturing a temporary prosthesis in which the coupling hole is integrally formed through three-dimensional printing. Explain.
[87]
In detail, referring to FIGS. 5 and 6, when the virtual coupling hole 501d is first or preliminarily set, the outer profile of the denture hole guider corresponds to the profile of the inner side fitting groove of the basic denture image 5d. Is set. In addition, a virtual alignment hole 401d is overlapped with the extension area of ​​the virtual coupling hole 501d.
[88]
In this case, it is preferable to understand that the inner side profile groove profile of the basic denture image 5d corresponds to the basic target arch image 2d displayed on the 3D work image 1d. In addition, the basic target archery image 2d may be displayed by being replaced with an image obtained based on the surface shape of the actual target archery or the inner surface profile of the matching groove of the denture. Therefore, when the outer profile of the denture hole guider is set along the surface profile of the basic target archery image 2d, the outer profile of the denture hole guider may be set to correspond to the matching groove profile of the denture.
[89]
In this case, the virtual alignment hole 401d is design information of the alignment hole formed in the actual denture hole guider, which is preferably understood as a three-dimensional image or three-dimensional vector data in the three-dimensional working image 1d. In addition, it is preferable that the alignment hole is understood as a perforation part actually formed in the denture hole guider.
[90]
On the other hand, when the inner profile is set in consideration of a predetermined support thickness from the outer profile of the denture hole guider, the solid three-dimensional area information between the outer profile and the inner profile can be set as the body information of the denture hole guider. have. Here, the body information of the denture hole guider is preferably understood as primary design information for setting the outer profile of the denture hole guider to an external shape corresponding to the gum surface profile of the target archery or the inner profile of the fitting groove.
[91]
In addition, a virtual denture hole guider 400d is set according to the body information of the denture hole guider and virtually disposed in the 3D work image 1d. In this case, the virtual denture hole guider 400d may be understood to include three-dimensional vector data representing the body information or a three-dimensional image corresponding to the vector data. In addition, the virtual denture hole guider 400d is virtually disposed in the three-dimensional work image 1d, and the body information of the denture hole guider is displayed as an image or three-dimensional coordinates corresponding to the body information of the denture hole guider. It is preferable to understand that is calculated.
[92]
In detail, the three-dimensional operation such that the outer profile of the virtual denture hole guider 400d matches the surface profile of the basic target arch image 2d or the three-dimensional surface information of the inner side fitting groove of the basic denture image 5d. It is arranged virtually in the image 1d. In addition, an extension region of the virtual coupling hole 501d and an overlapping region of the virtual denture hole guider 400d aligned in the arrangement direction of the virtual support cylinder 9d are set as the virtual alignment hole 401d. In this case, the set virtual coupling hole 501d extends along the arrangement direction of the virtual support cylinder 9d to penetrate the virtual denture hole guider 400d.
[93]
6 and 7B, the body information and the area information of the virtual alignment hole 401d are matched and set as design information of the denture hole guider. Then, the design information of the denture hole guider is transmitted to the manufacturing apparatus (30 of FIG. 2) such as a three-dimensional printer or a cutting processing device to manufacture the real denture hole guider 400.
[94]
At this time, the denture hole guider 400 is aligned and arranged in the matching groove 502 of the denture 5, and the perforation position and angle are guided through the alignment hole 401 formed in the denture hole guider 400. As a result, the coupling hole 501 may be formed in the denture 5.
[95]
In detail, a corresponding matching portion 402 corresponding to the gum surface profile of the target arch is protruded from one surface of the denture hole guider 400 corresponding to the matching groove 502 of the denture 5. In addition, the alignment hole 401 is penetrated between the other surface portion and the one surface portion of the denture hole guider 400 so as to correspond to the virtual coupling hole 501d preset in the 3D work image 1d.
[96]
Therefore, when the corresponding matching portion 402 is closely attached to the matching groove 502, the alignment hole 401 is continuously arranged with the first or preliminary virtual coupling hole 501d in the 3D work image 1d. Corresponding to the position to be. In addition, when drilling is guided along the alignment hole 401, the coupling hole 501 may be precisely processed at the correct position and angle in the denture 5. Through this, the denture 5 can be simply converted into a temporary prosthesis that can be coupled to the fixture / abutment using the coupling hole 501 and the support cylinder.
[97]
Further, when designing the denture hole guider 400, a virtual hook corresponding to the edge of the basic denture image 5d on the surface of the virtual denture hole guider 400d virtually disposed on the three-dimensional work image 1d. Preferably, the unit 403d is set. Here, the virtual locking portion 403d is design information for forming the locking portion 403 in the denture hole guider 400. it means.
[98]
At this time, the virtual locking portion 403d is an edge end of the basic denture image 5d in a state where the surface profile of the virtual denture hole guider 400d is aligned with the surface profile of the basic target archery image 2d. The protrusion is set to match with. The virtual locking part 403d, the body information of the denture hole guider, the virtual alignment hole 401d, and the like may be collected and used as design information of the denture hole guider 400.
[99]
Therefore, the engaging hole 403 supporting the edge of the denture 5 may be integrally formed along the edge of the corresponding matching portion 402 in the denture hole guider 400. Accordingly, when the denture hole guider 400 and the denture 5 are coupled, the edge 503 of the denture 5 is supported by the engaging portion 403 so that the matching groove 502 and the corresponding type are supported. Tight coupling between the mating portions 402 can be induced. Through this, the alignment hole 401 may be guided to a position corresponding to the virtual coupling hole 501d, thereby improving the convenience and precision of the machining piece for the coupling hole 501 which is actually perforated in the denture 5. Can be.
[100]
On the other hand, the temporary prosthesis may be manufactured through three-dimensional printing.
[101]
In detail, the design information of the temporary prosthesis may be first obtained based on the surface profile of the target archery and the occlusal information displayed on the 3D work image.
[102]
In this case, an inner surface profile of the artificial gum part may be set along the gum surface profile of the basic target archery image 2d displayed on the 3D work image 1d. When the outer profile is set in consideration of a predetermined support thickness from the inner profile of the artificial gum part, solid 3D area information may be set as design information corresponding to the artificial gum part between the outer profile and the inner profile. Can be.
[103]
In addition, the design information of the artificial tooth portion may be set according to the distance between the surface of the artificial gum arch and the mastication surface of the clavicle. At this time, the basic clam arch image 3d displayed on the 3D work image 1d is obtained in a state where the denture and the clam arch mounted on the target arch form are occluded with a vertical height suitable for the prosthetic subject. Therefore, the artificial tooth may be set to a height that provides a stable chewing sensitivity through the vertical diameter. When the primary design information of the temporary prosthesis is transmitted to the manufacturing apparatus (30 of FIG. 2) such as a 3D printer, the temporary prosthesis formed by the artificial gum part and the artificial tooth part may be manufactured. In the temporary prosthesis, the coupling hole 401 may be drilled using the denture hole guider 400.
[104]
Furthermore, a virtual temporary prosthesis set based on the primary design information of the temporary prosthesis may be virtually arranged in the 3D work image. In this case, the virtual temporary prosthesis may be virtually arranged such that an inner surface matching groove coincides with a gum surface profile of the basic target archery image. The final design information of the temporary prosthesis may be acquired as the virtual coupling holes are matched and added to correspond to the overlapping area between the virtual temporary prosthesis and the virtual support cylinder to the primary design information of the temporary prosthesis. Subsequently, when the final design information of the temporary prosthesis is transmitted to the 3D printer, the temporary prosthesis in which the coupling hole is integrally formed may be manufactured.
[105]
Meanwhile, FIG. 8 is a bottom view illustrating a temporary prosthesis in which a coupling hole is corrected through a method of manufacturing a digital prosthesis according to an embodiment of the present invention, and FIGS. 9A and 9B illustrate a method of manufacturing a digital prosthesis according to an embodiment of the present invention. 10A and 10B are exemplary views illustrating a process of designing a digital prosthesis through a correction surface image in the digital prosthetic manufacturing method according to an embodiment of the present invention. Is an exploded perspective view showing a digital prosthesis manufactured by the method of manufacturing a digital prosthesis according to an embodiment of the present invention.
[106]
Herein, a process of manufacturing the final digital prosthesis using the temporary prosthesis 500 in which the coupling hole is corrected to the correct position is as follows.
[107]
Referring to FIG. 8, the support cylinder 9 is aligned and coupled to the coupling hole 501 of the temporary prosthetic 500. The temporary prosthesis 500 may be installed in the target archery when the support cylinder 9 coupled to the coupling hole 501 is coupled to an abutment fastened to a fixture pre-established in the target archery. have. Accordingly, by using the temporary prosthesis 500 during the manufacturing period of the final digital prosthesis, the continuous authoring ability can be secured without damaging the appearance, thereby minimizing the inconvenience of daily life.
[108]
At this time, the coupling hole 501 according to the position deviation between the fixture pre-established at the actual installation position of the temporary prosthesis 500 and the support cylinder 9 fixed to the temporary prosthesis 500 in the target archery. Is corrected. The lower end of the support cylinder 9 fixed to the coupling hole 501 corrected to the correct position is used as the coupling area. Here, the coupling region includes a coupling portion of the abutment fastened to the fixture, and is understood as an area exposed to the outside of the gum.
[109]
In detail, the virtual coupling hole (501d in FIG. 6) set in the three-dimensional working image (1d in FIG. 6) is preset including a predetermined tolerance area. Therefore, a predetermined tolerance region corresponding to the virtual coupling hole (501d in FIG. 6) is also formed in the coupling hole 501 formed in the temporary prosthesis 500.
[110]
In addition, in the state in which the fitting groove 502 of the temporary prosthesis 500 is joined to the gum of the target archery, the auxiliary processing material r is filled between the coupling hole 501 and the support cylinder 9. Can be. Here, the auxiliary processing material (r) is provided with a resin or the like and the coupling hole 501 may be corrected. Accordingly, the coupling end of the support cylinder 9 can be accurately aligned to correspond to the position of the abutment fastened to the fixture placed in the target archery. The coupling end of the support cylinder 9 may be used as a coupling area for precise resetting of the virtual coupling groove included in the digital prosthetic design information in a subsequent process of the digital prosthetic manufacturing method.
[111]
Of course, in the temporary prosthesis, even if the inner circumferential surface of the coupling hole is only coated with a resin, the lower end of the coupling hole may be used as the coupling area. That is, the coupling region may be aligned based on the implantation information including the implantation position of the fixture and the shape and position of the abutment fastened to the fixture.
[112]
On the other hand, one end of the abutment is formed with a coupling portion which is a conical projection, the corresponding end of the support cylinder (9) is formed with a corresponding coupling groove 91 corresponding or shaped to the coupling portion. Then, an auxiliary scan image is obtained along the inner side side groove 502 of the temporary prosthesis 500 to which the support cylinder 9 on which the corresponding coupling groove 91 is formed is fixed (s230 of FIG. 1).
[113]
In detail, referring to FIG. 9A, the auxiliary scan image 1f is obtained by scanning the entire outer surface of the temporary prosthesis through an oral scanner, and includes a matching groove image 502a on the inner surface side of the artificial tooth part and the artificial gum part. . In this case, the matching groove image 91a is concave in the matching groove image 502a.
[114]
Here, the corresponding coupling groove image 91a is used as a coupling area as a reference for setting the position and shape of the virtual coupling groove for manufacturing the final digital prosthesis. That is, the coupling region may be formed to correspond to the outer surface profile of the abutment fastened to the fixture.
[115]
The auxiliary scan image 1f may be obtained through a temporary prosthesis in a state separated from the target arch, and may be obtained so that the overall three-dimensional surface shape of the artificial tooth part and the artificial gum part appears.
[116]
On the other hand, in the auxiliary scan image 1f, a corrected surface image of three-dimensional surface information of an inner surface side groove of the temporary prosthesis including the coupling region is obtained (s240 of FIG. 1). This correction surface image 1e is obtained through the planning unit 20 of FIG. 2.
[117]
In detail, three-dimensional surface information of the temporary prosthesis included in the auxiliary scan image 1f is stored in which a plurality of points having a predetermined coordinate value are interconnected to correspond to the outer surface information of the temporary prosthesis. For example, the 3D surface information of the temporary prosthesis may be stored as a STL file, and is set to have a triangular face by a plurality of points and lines connecting the prosthetic prosthesis. Therefore, the auxiliary scan image 1f may be stored as a three-dimensional surface model in which the inside of the outer shape of the temporary prosthesis is substantially hollow.
[118]
Furthermore, referring to FIGS. 9A and 9B, the three-dimensional surface information of the temporary prosthesis is a three-dimensional surface of the artificial gum part displayed while covering the lower end of the artificial tooth part and the artificial tooth part whose surface is substantially convex upward. Contains surface information. In addition, the fitting groove image 502a and the corresponding coupling groove image 91a which are concavely displayed on the inner surface side of the artificial gum part are included.
[119]
At this time, the matching area portion m is set based on the boundary area x selected and input along the outer edge of the matching groove image 502a in the 3D surface information of the temporary prosthesis. Here, the outer edge of the matching groove image 502a may be understood as a boundary line between the matching groove image 502a and the outer surface portion of the artificial gum part. In addition, the matching area portion m includes three-dimensional surface information of the matching groove image 502a and the corresponding coupling groove image 91a, that is, three-dimensional surface information of the coupling area.
[120]
Then, the three-dimensional surface information of the temporary prosthesis other than the matching area part m, that is, the outer profile of the artificial gum part and the artificial tooth part area are set and deleted as the erasing area d. Through this, inner surface side surface information of the matching region portion m including the coupling region may be exposed to the outside and obtained as the correction surface image 1e.
[121]
In this case, since the three-dimensional surface information of the temporary prosthesis is stored as surface information having substantially no thickness, the coordinate value of the inner surface side profile of the matching area portion m and the coordinate value of the outer surface side profile are the same. Accordingly, the correction surface image 1e may be obtained with respect to the three-dimensional surface information of the matching groove image 502e and the coupling region image 91e which is deleted and the erased region d is removed. Here, it is preferable to understand that the 3D surface information of the exposed coupling region image 91e corresponds to the 3D surface information of the image of which the inner surface side of the corresponding coupling groove is exposed to the outside.
[122]
That is, the present invention may obtain three-dimensional surface information of the matching groove and the coupling region in a simple way of deleting unnecessary parts from the image obtained by scanning the temporary prosthesis. Therefore, the design information precisely corresponding to the target archery and the coupling region can be clearly exposed and obtained. At this time, since the three-dimensional surface information of the matching groove and the coupling region is substantially matched with the external profile of the target arch and the abutment implanted therein, the installation precision of the digital prosthesis designed and manufactured based on this can be significantly improved. have.
[123]
Meanwhile, referring to FIGS. 10A and 10B, the virtual abutment 800d extracted from the digital library is virtually arranged to alternately correct three-dimensional surface information of the exposed joint area image 91e (s240 in FIG. 1). ).
[124]
Here, the digital library means a database including digital appearance information corresponding to a plurality of abutments. That is, the digital library stores a plurality of digital appearance information corresponding to general abutments and multi abutments of various standards. Accordingly, the digital appearance information of the virtual abutment 800d may be extracted from the digital library according to the fitting angle of the fixture and the fastening groove shape information of the fixture.
[125]
In addition, the digital library may include the digital appearance information of the virtual support cylinder together with the virtual abutment, and the actual abutment and the support cylinder can be easily manufactured using the digital appearance information. Furthermore, the abutment and the support cylinder prefabricated according to the digital appearance information included in the digital library may be immediately used without a separate manufacturing process corresponding to the virtual abutment and the virtual support cylinder.
[126]
Here, a matching reference point may be automatically set or manually input to a corresponding portion of the coupling portion of the virtual abutment 800d and the exposed coupling region image 91e. The virtual abutment 800d is overlapped with the exposed coupling area image 91e such that the registration reference points of the objects overlap each other. Accordingly, the distortion or damage that may occur during the needle, foreign matter or scanning process is eliminated, the surface shape of the engaging portion of the abutment placed in the target arch can be accurately displayed in the three-dimensional working image (1d).
[127]
Preferably, the surface image previously matched to the three-dimensional working image 1d is replaced with the corrected surface image 1e so that the three-dimensional working image 1d is reacquired. That is, the surface information corresponding to the target archery is alternately displayed through three-dimensional surface information of the exposed matching groove image 502e, and corresponds to the coupling portion of the abutment through the virtual abutment 800d. Surface information can be displayed alternately.
[128]
Accordingly, the reacquired three-dimensional working image 1d includes the corrected surface image 1e and the basic clam arch image 3d, which replace the basic target archery image, with a vertical height suitable for the prosthetic subject. . At this time, the correction surface image (1e) is the virtual abutment that accurately represents the position and shape of the engagement portion of the abutment in the three-dimensional surface information of the exposed matching groove image (502e) and the surface profile of the target archery 800d is displayed.
[129]
The inner profile is set according to the 3D surface information of the exposed matching groove image 502e, but the virtual coupling prosthesis 300d is formed and formed with the virtual coupling groove 501e corresponding to the virtual abutment 800d. ) Is designed and manufactured (s250 in FIG. 1).
[130]
Here, the virtual coupling groove 501e may be formed based on three-dimensional surface information of the exposed coupling region image 91e, but is replaced with the virtual abutment 800d to have a more accurate shape. Can be set.
[131]
At this time, the virtual coupling groove 501e is preferably set to a shape that is combined with the coupling portion of the abutment without a separate tolerance zone. For example, when a cutting portion having a hexagonal or polygonal shape for angular alignment is formed on an outer surface of the engaging portion of the abutment, the virtual coupling groove 501e is also set to a groove shape to be joined thereto.
[132]
On the other hand, it is preferable that the through-hole is formed in the upper portion of the virtual digital prosthesis 300d in which the virtual coupling groove 501e is formed so that the screw for coupling the final digital prosthesis and the abutment is inserted.
[133]
Therefore, the present invention can be designed so that the positional relationship between the fixture actually placed in the target archery, the abutment fastened to the fixture, and the digital prosthesis can be accurately calculated. In addition, the virtual coupling groove 501e is precisely designed to accurately reflect the calculated positional relationship of the digital prosthesis, and an installation position of the digital prosthesis according to the position and angle of the fixture / abutment implanted in the target archery And angles can be clearly matched.
[134]
Of course, the auxiliary scan image 1f may be obtained as a correction surface image as the auxiliary scan image 1f is inverted through the planning unit 20 of FIG. 2. That is, the inner surface side grooves of the temporary prosthesis including the coupling area may be reversed to obtain a stereoscopic reverse image of the coupling groove and the coupling area.
[135]
The inverted image obtained by the inversion may display an inverted image of the joining groove in which the joining groove is three-dimensional and an inverted image of the joining region. Here, it is preferable that the inverted image of the coupling region is understood as a shape in which the corresponding coupling groove is inverted and three-dimensional. The surface information corresponding to the target archery is alternately displayed through the reverse image of the matching groove displayed on the correction surface image, and the reverse image of the coupling region may be alternately displayed through the virtual abutment.
[136]
Furthermore, a correction surface image may be obtained for the three-dimensional surface information of the inner side grooves of the wing temporary prosthesis including the support cylinder. In addition, the three-dimensional surface information of the coupling end of the support cylinder may be alternatively corrected by the virtual abutment extracted from the digital library corresponding to the abutment.
[137]
Meanwhile, an inner surface profile of the artificial gum part is set to correspond to three-dimensional surface information of the exposed matching groove image 502e displayed on the three-dimensional working image 1d. When the outer profile is set in consideration of a predetermined support thickness from the set inner profile, the solid 3D area information between the outer profile and the inner profile may be set as design information corresponding to the artificial gum part.
[138]
In addition, the design information of the artificial tooth portion, the height of which is set according to the distance between the surface of the artificial gum portion and the chewing surface of the clavicle arch can be obtained. The virtual digital prosthesis 300d may be set according to the primary design information of the digital prosthesis including the artificial gum part and the artificial tooth part, and may be virtually disposed in the 3D work image 1d. In this case, the virtual digital prosthesis 300d may be understood as encompassing three-dimensional vector data representing the design information of the digital prosthesis or a three-dimensional image corresponding to the vector data.
[139]
In this case, the virtual digital prosthesis 300d is virtually arranged such that the inner surface profile coincides with three-dimensional surface information of the exposed matching groove image 502e. The virtual coupling groove 501e may match the design information of the virtual digital prosthesis 300d according to an overlapping area between the virtual digital prosthesis 300d and the virtual abutment 800d. That is, the design information corresponding to the set artificial gum part, the artificial tooth part and the virtual coupling groove 501e may be summed to obtain final design information of the digital prosthesis.
[140]
Therefore, the virtual coupling groove 501e can be precisely designed by accurately reflecting the position where the fixture / abutment / support cylinder is substantially placed / installed in the target archery, and the coupling groove is accurately formed in the digital prosthesis. Can be formed. In addition, since the virtual coupling groove 501e is set based on the virtual abutment 800d, matching accuracy between the coupling groove and the fixture / abutment placed in the target archery can be significantly improved. .
[141]
Through this, unlike the prior art that the position of the coupling groove is determined through the experience of the operator or the eye mass, etc., there is no need for a delay process due to additional correction such as extended cutting or resin addition of the coupling groove, thereby enabling quick and convenient installation. . In addition, since the coupling groove is damaged or the prosthesis is separated due to the separation or breakage of the added resin, it is possible to install a solid product, thereby improving installation convenience and durability.
[142]
Meanwhile, referring to FIG. 11, the final design information of the obtained digital prosthesis is transmitted to the manufacturing apparatus (30 of FIG. 2) to manufacture a real digital prosthesis 300 (s250 of FIG. 1). Here, the digital prosthesis 300 may be used as a means for firmly modifying the gum to replace the conventional denture.
[143]
In detail, the digital prosthesis 300 includes a denture frame 302 and a crown bridge 301. In addition, the cover unit 350 such as a ceramic material matching the gum color is further provided on the lower portion thereof so that the denture frame 302 of the metal material is not visually exposed. Of course, instead of the separate cover part 350, an extension part corresponding to the color of the gum may be formed on the lower part of the denture frame 302 and then processed.
[144]
The denture frame 302 may be formed of a ceramic or metal material having a high strength and biocompatibility as a portion corresponding to an artificial gum part. Here, a mating groove is formed in one surface portion of the denture frame 302, and a plurality of support protrusions 302b to which the crown bridge 301 is coupled to the other surface portion are formed. In addition, the coupling groove 302a is formed at a position matching the virtual coupling groove 501e.
[145]
In addition, the crown bridge 301 is a portion corresponding to the artificial tooth portion is formed of a ceramic or metal material having high strength and biocompatibility, the support groove portion 301a is inserted into the support projection 302b on one side Is formed.
[146]
In this case, the digital prosthesis 300 may be manufactured by a three-dimensional printer, but is more preferably manufactured by a milling and cutting device for high precision processing without limitation of processing materials. Accordingly, an artificial prosthesis having high processing precision and durability can be provided.
[147]
As such, unlike the conventional art of acquiring an actual impression such as fixtures and impression copings placed in the target archery, the present invention can be manufactured with a high precision digital prosthesis while using a three-dimensional working image. In addition, since the design information of the digital prosthesis is easily stored and managed as 3D vector data, it is possible to easily repeat manufacturing using the design information of the digital prosthesis stored at the time of breakage and loss, thereby improving manufacturing convenience.
[148]
Furthermore, the virtual coupling hole is set with a very high precision by virtually arranging the virtual support cylinder based on the image of the support cylinder in the fixed position through the actual installation process of the temporary prosthesis. Therefore, a digital prosthesis having a coupling groove fixed to the position of the substantial fixture / abutment can be manufactured.
[149]
As described above, the present invention is not limited to the above-described embodiments, but may be modified and implemented by those skilled in the art without departing from the scope of the claims of the present invention. Such modifications are within the scope of the present invention.
Industrial availability
[150]
The invention is applicable to the field of business for the production of dental prostheses.
Claim
[Claim 1]
A three-dimensional working image displaying occlusion information between the clavicle arch and the implantation information of the fixture placed in the target archery is obtained from a target arch, and is formed in correspondence with a coupling part profile of the abutment coupled to the fixture. A first step of preparing the aligned temporary provisional prosthesis; A second step of obtaining an auxiliary scan image for the temporary prosthesis; A third step of acquiring a corrected surface image of the three-dimensional surface information of the inner surface side matching groove of the temporary prosthesis including the coupling area in the auxiliary scan image; And a fourth step of designing and manufacturing a digital prosthesis having a virtual coupling groove corresponding to the position and shape of the three-dimensional surface information of the coupling region in an inner profile set according to the three-dimensional surface information of the matching groove. Prosthetic manufacturing method.
[Claim 2]
The virtual abutment extracted from the digital library corresponding to the abutment is virtually arranged to correspond to the three-dimensional surface information of the coupling region included in the correction surface image. The method of claim 1, further comprising the step of performing the correction of the three-dimensional surface information of the coupling area along the outer area of ​​the virtual abutment.
[Claim 3]
3. The method of claim 2, wherein the fourth step comprises the steps of virtually arranging a virtual digital prosthesis in which an artificial gum part and an artificial tooth part are set based on the three-dimensional working image in which the correction surface image is matched with the virtual digital prosthesis and And the digital prosthesis is designed by matching the virtual digital prosthesis and the virtual coupling groove corresponding to the overlapping area between the virtual abutments.
[Claim 4]
The method of claim 1, wherein the third step comprises: setting a matching area unit based on a boundary area selected and input along the outer side of the matching groove in the three-dimensional surface information of the temporary prosthesis included in the auxiliary scan image; And erasing three-dimensional surface information of the temporary prosthesis except for the fitting area, thereby exposing surface information of the inner surface of the fitting area including the coupling area, and obtaining the corrected surface image. Way.
[Claim 5]
5. The method of claim 4, wherein in the third step, the 3D surface information of the temporary prosthesis is stored by interconnecting a plurality of points having a predetermined coordinate value corresponding to the external surface information of the temporary prosthesis included in the auxiliary scan image. Digital prosthesis manufacturing method characterized by.
[Claim 6]
The method of claim 1, wherein in the third step, the correction surface image is obtained as an inverted image in which the fitting groove and the coupling region are stereoscopically obtained by inverting an inner side groove of the temporary prosthesis including the coupling region. Digital prosthetic manufacturing method.
[Claim 7]
The virtual abutment extracted from the digital library corresponding to the abutment is virtually arranged to correspond to an inverted image of the coupling region, and the outer region of the virtual abutment is disposed. According to claim 1, wherein the inverted image of the coupling area is corrected alternatively.
[Claim 8]
The method of claim 1, wherein the first step further comprises the step of arranging the coupling end of the support cylinder to correspond to the coupling profile of the abutment, the support cylinder from the auxiliary scan image in the third step Compensation surface image for the three-dimensional surface information of the inner surface side grooves of the temporary prosthetic prosthesis is obtained, the coupling end of the support cylinder by a virtual abutment extracted from the digital library corresponding to the abutment Digital prosthesis manufacturing method characterized in that the three-dimensional surface information is alternatively corrected.
[Claim 9]
An imaging device for acquiring an auxiliary scan image for a temporary prosthesis in which a coupling region formed to correspond to an abutment fastened to a fixture placed in a target archery is arranged; Acquire a correction surface image for the three-dimensional surface information of the inner surface-side matching groove of the temporary prosthesis including the coupling area in the auxiliary scan image, and sets the inner profile according to the three-dimensional surface information of the matching groove A planning unit for designing a digital prosthesis by setting a virtual coupling groove corresponding to the position and shape of the 3D surface information of the coupling region in the profile; And a manufacturing apparatus for manufacturing the designed digital prosthesis.
[Claim 10]
10. The method of claim 9, further comprising a digital library storage including a profile for each kind of abutment, wherein the planning unit is a virtual abutment is extracted and virtually arranged to three-dimensional surface information of the coupling area from the digital library And alternatively correcting and setting the virtual coupling groove corresponding to the virtual abutment to design the digital prosthesis.
[Claim 11]
3. A method of manufacturing a denture hole guider for forming a coupling hole in which a support cylinder is installed in a denture mounted on a target arch, wherein the fitting information of the fixture placed in the target archery and a denture image corresponding to the denture are displayed. A first step of obtaining a dimensional work image; A second step of setting a virtual coupling hole corresponding to the insertion information of the fixture; And a third step in which the outer profile is set according to the three-dimensional surface information of the inner side grooves of the denture image, but a virtual alignment hole is superimposed and aligned with the extension area of ​​the virtual coupling hole to design and manufacture the denture hole guider. Denture hole guider manufacturing method comprising.
[Claim 12]
12. The method of claim 11, wherein the second step includes virtually arranging the virtual support cylinder according to the placement information of the fixture so as to correspond to the support cylinder, and the virtual coupling hole is matched to an outer region of the virtual support cylinder. And a third step, wherein the virtual denture hole guider corresponding to the design information of the denture hole guider is virtually disposed in the three-dimensional work image, wherein the extension region of the virtual coupling hole and the virtual denture hole guider And an overlapping area is set as the virtual alignment hole.
[Claim 13]
The method of claim 12, wherein the third step includes a step of setting a virtual locking part corresponding to the edge of the denture image on the surface of the virtual denture hole guider, wherein the fourth step comprises the manufactured denture hole guider. It is characterized in that it comprises a step of forming and engaging in the inner surface side groove of the denture, the coupling hole is formed in the denture at the perforation position and angle guided along the alignment hole of the denture hole guider to produce a temporary prosthesis Denture Hall guider manufacturing method.
[Claim 14]
A corresponding mating portion protruding in response to three-dimensional surface information of the mating groove in one surface portion so as to form a mating hole in which the support cylinder is installed in the denture mounted on the target arch; And an alignment hole which is formed to penetrate the corresponding coupling portion so that the punching position and angle of the coupling hole are guided and overlaps with the extension area of ​​the virtual coupling hole set according to the placement information of the fixture displayed on the 3D work image. Denture Hall guider.
[Claim 15]
The denture hole guider according to claim 14, wherein an engaging portion for supporting the edge of the denture is formed at an edge of the corresponding mating portion.