Method for reproducing the vertical dimension of occlusion for manufacturing artificial teeth

Abstract

The present invention relates to a bite vertical dimension reproduction method for manufacturing artificial teeth, and more particularly to a bite vertical dimension reproduction method for manufacturing artificial teeth, in which three-dimensional scan data are used to calculate a bite vertical dimension required for manufacturing artificial teeth. The bite vertical dimension reproduction method for manufacturing artificial teeth according to the present invention has the advantage that a bite vertical dimension for effectively manufacturing new artificial teeth can be easily confirmed while minimizing the number of direct scans of the upper and lower jaws of a patient in a toothless state or a bite state to reproduce a bite state of a patient's oral cavity wearing artificial teeth or an artificial tooth structure in a virtual space.

Description

Technical Field

[0001] This disclosure relates to a method for reproducing occlusal vertical dimensions for denture manufacturing, and more specifically to a method for reproducing occlusal vertical dimensions for denture manufacturing, wherein three-dimensional data is used to reproduce the occlusal vertical dimensions required for denture manufacturing. Background Technology

[0002] The absence of teeth in the upper and lower jaws of the human oral cavity is called "dentate". In many cases, dentures are made and worn when at least one of the upper and lower jaws is dentate. When both the upper and lower jaws are dentate, dentures are made and worn on both jaws, and when only one of the upper and lower jaws is dentate, a denture is worn on that single jaw.

[0003] Therefore, in order to manufacture dentures, it is important to determine the occlusal vertical dimension and to manufacture the dentures according to this dimension; the occlusal vertical dimension is the height of the denture or other teeth at which the maxilla and mandible properly engage and bite together. When dentures are manufactured to match the occlusal vertical dimension, the user does not experience any discomfort while chewing, and the user's facial expression remains natural.

[0004] In addition, when only one tooth is missing in the maxilla or mandible, a prosthesis of appropriate size and shape should be manufactured taking into account the occlusal vertical dimensions, so as to facilitate the planning for implantation of artificial teeth in the maxilla or mandible on the opposite side of the edentulous jaw or for orthodontic treatment.

[0005] Traditional denture manufacturing methods are mostly done manually and require multiple processes of creating molds for the patient's edentulous jaw or adjusting the vertical dimensions of the bite. Therefore, it is very inconvenient not only for the patient but also for the operator.

[0006] The traditional methods of denture manufacturing are roughly described below.

[0007] A mold of the patient's edentulous jaw is made using resin material to obtain a preliminary impression. A plaster model is then created using the preliminary impression, which in turn forms the master model for the edentulous jaw.

[0008] A recording base (denture base) is fabricated on a master model using resin or wax, and a wax embankment (occlusal embankment) is placed on the recording base. Artificial teeth are then aligned on this wax embankment in the appropriate position, orientation, and height. At this point, considering the occlusal relationship, the position and orientation of the artificial teeth to be mounted on the denture are adjusted using a device such as an articulator.

[0009] In this process, wax-rimmed dentures are actually installed several times on the patient's edentulous jaw to check and adjust the occlusion. Similarly, the process of installing the artificial teeth onto the wax rim is mostly done manually, so the quality of the work is greatly influenced by the operator's experience and skill. Furthermore, the fabrication of wax-rimmed dentures requires the patient to visit the dentist several times, and the operator must repeatedly adjust the vertical occlusal dimensions and the alignment of the artificial teeth on the wax rim, which is quite cumbersome.

[0010] When the wax-lined denture is manufactured, it is placed in a mold, the wax line is melted and removed with hot water, and then filled with and cured with resin to replace the wax line, thus completing the denture manufacturing process.

[0011] When the patient's occlusal vertical dimensions can be effectively reproduced in virtual three-dimensional space by scanning the patient's oral structure and denture structure, the denture manufacturing process can be improved to make dentures faster and easier, and to reduce inconvenience for both the patient and the operator during the denture manufacturing process. Summary of the Invention

[0012] This disclosure is intended to solve the above-mentioned problems, and the purpose of this disclosure is to provide a method for reproducing the occlusal vertical dimension for denture manufacturing, wherein by accurately calculating the occlusal vertical dimension using three-dimensional information of the patient's oral cavity, a plan for denture manufacturing, implant placement or orthodontic treatment can be easily developed for edentulous patients.

[0013] To achieve the above objectives, a method for reproducing the occlusal vertical dimension for denture manufacturing according to this disclosure includes: (a) acquiring edentulous jaw shape information, the edentulous jaw shape information being shape information of at least one of the patient's maxilla and mandible in an edentulous state; (b) acquiring denture shape information, the denture shape information being shape information of a denture structure having a corresponding shape for engaging with one of the patient's maxilla and mandible in an edentulous state; (c) acquiring occlusal shape information, the occlusal shape information being shape information of the denture structure when the patient wears the denture structure on the edentulous jaw and the maxilla and mandible occlude; (d) aligning and arranging the corresponding surfaces of the edentulous jaw shape information and the denture shape information with each other while the corresponding surfaces are aligned with each other; and (e) calculating the positional relationship between the maxilla and mandible while the edentulous jaw shape information, the denture shape information, and the occlusal shape information are aligned by operation (d).

[0014] The advantage of the occlusal vertical dimension reproduction method for denture manufacturing disclosed herein is that it can easily confirm the occlusal vertical dimension for effective fabrication of new dentures, while minimizing the number of direct scans of the maxilla and mandible of patients in a edentulous or occlusal state, and can reproduce the occlusal state of the oral cavity of patients wearing dentures or denture structures.

[0015] Compared with existing technologies, the occlusal vertical dimension reproduction method disclosed herein for denture manufacturing has the effect of reducing inconvenience to patients and operators during the denture manufacturing process. Attached Figure Description

[0016] Figure 1 A flowchart illustrating an embodiment of a method for reproducing the occlusal vertical dimension for denture manufacturing according to the present disclosure.

[0017] Figure 2 A block diagram illustrating an embodiment of the configuration of an apparatus for implementing a method for reproducing the occlusal vertical dimension in denture manufacturing according to the present disclosure.

[0018] Figures 3 to 7 The process of reproducing the occlusal vertical dimension for denture manufacturing according to an embodiment of the present disclosure is shown. Detailed Implementation

[0019] In the following description, a method for reproducing the occlusal vertical dimension for denture manufacturing according to the present disclosure will be described with reference to the accompanying drawings.

[0020] Figure 1 A flowchart illustrating an embodiment of a method for reproducing the occlusal vertical dimension for denture manufacturing according to the present disclosure.

[0021] Figure 2 A block diagram illustrating an embodiment of the configuration of an apparatus for implementing a method for reproducing the occlusal vertical dimension in denture manufacturing according to the present disclosure.

[0022] Figures 3 to 7 The process of reproducing the occlusal vertical dimension for denture manufacturing according to an embodiment of the present disclosure is shown.

[0023] The purpose of this disclosure is to improve the quality of the manufactured dentures by obtaining the patient's occlusal vertical dimensions through a relatively easy method during the manufacturing process of dentures that fit the patient's bite.

[0024] An example of the apparatus according to this disclosure for implementing a method for reproducing the occlusal vertical dimension in denture manufacturing is shown in... Figure 2As shown in the figure. The apparatus for implementing a method for reproducing the occlusal vertical dimension for denture manufacturing according to this disclosure includes: an intraoral scanner 10 configured to scan a patient's teeth, edentulous jaw, denture, denture structure, etc., and acquire their shape information; and a display device for displaying the shape information acquired by the intraoral scanner 10. Furthermore, the apparatus for implementing a method for reproducing the occlusal vertical dimension for denture manufacturing according to this disclosure includes: an edentulous receiving unit 20 configured to receive edentulous jaw shape information; a denture receiving unit 30 configured to receive shape information of the denture structure; an occlusal receiving unit 40 configured to receive occlusal shape information; an alignment unit 50 configured to align the edentulous jaw shape information and the denture shape information with the occlusal shape information; and an occlusal vertical dimension calculation unit 60 configured to calculate the occlusal vertical dimension between the maxilla and mandible based on the edentulous jaw shape information and the denture shape information aligned by the alignment unit 50.

[0025] In the following text, as described above, the specific operation of the apparatus for implementing the method for reproducing the occlusal vertical dimensions for denture manufacturing will be described in detail, and the method for reproducing the occlusal vertical dimensions for denture manufacturing according to this disclosure will be described in detail.

[0026] First, using an intraoral scanner 10 (operation (a), S100), the edentulous receiving unit 20 receives edentulous jaw shape information, which is the shape information of at least one of the patient's maxilla and mandible in an edentulous state. Based on the structure and state of the patient's teeth, the edentulous jaw shape information is obtained by scanning the edentulous portions of the patient's maxilla and mandible with the scanner. When only one of the maxilla and mandible is edentulous, the edentulous receiving unit 20 receives the edentulous jaw shape information of the edentulous portion. When both the patient's maxilla and mandible are edentulous, the edentulous receiving unit 20 receives the edentulous jaw shape information obtained by scanning each of the maxilla and mandible. In the following, an example of a patient with both maxilla and mandible being edentulous will be used to describe the occlusal vertical dimension reproduction method for denture fabrication according to this embodiment.

[0027] The toothless jaw shape information received by the toothless receiving unit 20 is displayed on the display unit 70 as shown in the image. Figure 3 On the display device shown (operation (f), S600). Figure 3 This illustrates the edentulous jaw shape information of the patient's edentulous maxilla, received by the edentulous receiving unit 20 and displayed by the display unit 70 during operation (a).

[0028] Next, the denture receiving unit 30 receives denture shape information, which has been acquired by the intraoral scanner 10, and is shape information of the denture structure formed in a corresponding shape, to engage with the patient's edentulous maxilla and / or mandible (operation (b), S200). The denture structure is the denture to be worn on the patient's edentulous portion, or an equivalent structure. The patient's existing denture can serve as the denture structure, or the wax rim, as a structure, can serve as the denture structure during the intermediate process of manufacturing the denture by creating a mold of the patient's edentulous portion. The purpose of using an existing denture as the denture structure is to manufacture a new denture by confirming the patient's occlusal vertical dimensions based on the existing denture, or to manufacture a denture that better matches the patient's edentulous jaw than the existing denture.

[0029] Operation is carried out in such a manner as (b): the denture receiving unit 30 receives the results of scanning the denture structure by the intraoral scanner 10 as denture shape information.

[0030] At this time, the denture receiving unit 30 can obtain denture shape information by simply accumulating the scan images generated by scanning the denture structure using the intraoral scanner 10, and can complete the denture shape information by referring to the edentulous jaw shape information received by the edentulous receiving unit 20.

[0031] In other words, the denture receiving unit 30 can obtain denture shape information by merging scanned images of the inner surface of the denture structure (the surface corresponding to the edentulous jaw shape information) scanned by the intraoral scanner 10 and aligning the merged scanned images with the corresponding surface in the edentulous jaw shape information. Furthermore, this process can be implemented in such a way that denture shape information is obtained by accumulating scanned images from the intraoral scanner 10 and aligning the scanned images with the edentulous jaw shape information in real time. In this way, when denture shape information is obtained by merging scanned images of the denture structure corresponding to the portion of the edentulous jaw shape information in real time and aligning the scanned images with the edentulous jaw shape, the advantage is that more accurate denture shape information is obtained that is also more accurately aligned with the edentulous jaw shape information. This is because, based on the already acquired edentulous jaw shape information, denture shape information can be obtained while optimizing the scanned images.

[0032] In addition, in some cases, the denture shape information can be obtained by the denture receiving unit 30 by using a scanned image captured by the intraoral scanner 10 to obtain only a portion of the surface corresponding to the edentulous jaw shape information, aligning the obtained portion with the edentulous jaw shape information, and then scanning the outer surface of the denture structure.

[0033] In some cases, the components of a denture and an impression for fabricating a mold of a patient's edentulous jaw can constitute a denture structure. When re-lining or re-basing is performed to fill the space between the patient's edentulous jaw and the denture, an impression is obtained by pressing a curable resin onto the edentulous jaw while simultaneously applying a curable resin to the inner surface of the denture. In such cases, the components of the impression and the denture can be a denture structure. In this scenario, the denture structure, in which the impression and the denture can be assembled together, is scanned by an intraoral scanner 10, allowing the denture receiving unit 30 to receive denture shape information.

[0034] In some cases, the denture receiving unit 30 can also acquire denture shape information by scanning and integrating the denture and impression. Furthermore, by scanning the inner surface of the impression (the surface in contact with the edentulous jaw) and then scanning the outer surface of the denture (the part of the artificial tooth exposed), and by combining the scanned surfaces with each other using methods such as ICP, the receiving unit can acquire shape information of the denture structure as denture shape information.

[0035] When an impression is used in this manner, the space between the denture and the edentulous jaw can be filled by the impression, making the internal shape of the impression extremely similar to the shape of the patient's edentulous jaw. Therefore, in this case, the shape information of the edentulous jaw can also be obtained indirectly by scanning the inner surface of the impression without directly scanning the patient's edentulous jaw. In other words, operation (a) can also be performed to obtain denture shape information by scanning the shape of the inner surface of the impression that contacts the edentulous jaw and then reversing the scanned shape. In some cases, even when the denture structure is a wax rim or denture without an impression, the shape information of the edentulous jaw can be obtained by inverting the scanned information of the inner surface of the denture structure and reversing the inner and outer sides of the denture structure. In other words, after scanning the inner surface of the denture structure, the shape information of the edentulous jaw can be obtained when the inner and outer sides of that part are inverted (reversed).

[0036] The denture shape information received by the denture receiving unit 30 in this manner is displayed on the display device by the display unit 70 (operation (f), S600). Figure 4 The denture shape information is shown, which has been received by the denture receiving unit 30 in operation (b), aligned with the edentulous jaw shape information, and then displayed by the display unit 70. As described above, the denture shape information is aligned with the edentulous jaw shape information in real time. Therefore, when the denture structure is scanned while the edentulous jaw shape information is displayed on the display unit 70, the denture shape information, having a three-dimensional shape realized through the scanned photograph, is displayed on the display unit 70 in a state aligned with the edentulous jaw shape information.

[0037] Next, the occlusion receiving unit 40 receives occlusion shape information, which is the shape information of the oral cavity and the denture structure when the patient wears a denture structure on the edentulous jaw and the maxilla and mandible are occluded (operation (c), S300). When only one tooth is present in the patient's maxilla and mandible, the intraoral scanner 10 scans the shape information of the maxilla and mandible in occlusion when the denture structure is worn on the edentulous part, and the correspondingly acquired occlusion shape information is received by the occlusion receiving unit 40. In this case, the occlusion shape information is acquired with the denture structure worn on one side and the patient's real teeth on the other side.

[0038] Procedure (c) is performed to determine the position of the maxilla and mandible in the state of maxillary and mandibular occlusion when the patient is wearing the denture structure. At this time, the patient may wear an existing denture in use as the denture structure, or may wear an intermediate structure corresponding to the denture and already produced during the denture manufacturing process. In either structure, procedure (c) is performed in a state where the shape of the oral cavity can be determined, wherein, regardless of the structure, the maxilla and mandible are in occlusion when the denture structure is worn.

[0039] In cases where the patient has no teeth in both the maxilla and mandible, the occlusion receiving unit 40 receives occlusion shape information, which is obtained by scanning the maxilla and mandible in occlusion while both denture structures are worn on the maxilla and mandible.

[0040] The bite shape information received in this manner by the bite receiving unit 40 is displayed on the display device by the display unit 70 (operation (f), S600). Figure 5 The state of the display unit 70 displaying bite shape information on the display device is shown.

[0041] Next, the alignment unit 50 aligns the corresponding surfaces of the edentulous jaw shape information and the denture shape information, and then aligns and arranges the corresponding surfaces to overlap the occlusal shape information (operation (d), S400).

[0042] Alignment unit 50 aligns the corresponding surfaces of the edentulous jaw shape information and the denture shape information with each other using the iterative closest point (ICP) technique, and then aligns the corresponding surfaces again to overlap the occlusal shape information. The edentulous jaw shape information corresponds to the shape of the inner surface (posterior surface) of the denture shape information. Therefore, the edentulous jaw shape information and the denture shape information can be accurately and precisely matched by the ICP technique of repeatedly finding and matching the closest point, and can be arranged in three-dimensional space. Furthermore, the "edentulous jaw shape information and denture shape information" aligned with each other in this way has a relatively high proportion of a portion in which the edentulous jaw shape information and the denture shape information are substantially matched with the occlusal shape information obtained in operation (c) in terms of the outer surface shape, and can therefore be aligned and arranged to accurately overlap each other using the ICP technique as described above. This technique completes the process of finally arranging the edentulous jaw shape information in the occlusal position in three-dimensional space. In other words, based on the occlusal shape information obtained in operation (c), the edentulous jaw shape information and the denture shape information can be aligned at the occlusal position.

[0043] The edentulous jaw shape information, denture shape information and occlusal shape information aligned in this way by the alignment unit 50 are displayed on the display device by the display unit 70 (operation (f), S600). Figure 6 The diagram shows the state in which the display unit 70 displays edentulous jaw shape information, denture shape information, and occlusal shape information in an overlapping manner on the display device. Depending on the user's selection, the display unit 70 can selectively display only at least one of the edentulous jaw shape information, denture shape information, and occlusal shape information. Figure 7 The image shows a state where the display unit 70 displays only the dentition shape information of the occlusal maxilla and mandible on the display device.

[0044] In this state, while aligning the edentulous jaw shape information, denture shape information and occlusal shape information through operation (d), the occlusal vertical dimension calculation unit 60 calculates the occlusal vertical dimension corresponding to the size of the relative position and direction between the maxilla and mandible (operation (e), S500).

[0045] See Figure 7The occlusal vertical dimension calculation unit 60 can calculate only the closest and furthest distances between the maxilla and mandible, and can provide information obtained by calculating relative positions as a concept including the direction and distance between the maxilla and mandible. In some cases, the relative distance and direction between the maxilla and mandible can be calculated for each location along the extension path of the maxilla and mandible, and can be provided as a result. Furthermore, in some cases, the display unit 70 can provide tools for calculating and providing the difference in distance and direction between the maxilla and mandible for each location. Additionally, in some cases, the display unit 70 can provide tools for calculating and providing the difference in distance and direction between the maxilla and mandible at a point specified by the user via an input device (such as a mouse).

[0046] The method described above offers the following advantages: it reproduces the occlusal vertical dimensions used for the efficient fabrication of new dentures while minimizing the number of direct scans of the patient's edentulous jaw or occlusal maxilla and mandible. In other words, by using an existing denture in use as the denture structure, the occlusal vertical dimensions can be effectively reproduced, and then used as basic information to adjust the shape of the existing denture or fabricate a new denture that the patient can wear more comfortably. Furthermore, regarding denture structures such as wax embankments, which are intermediate processes in denture fabrication, information required for wax embankment correction (i.e., fabricating artificial teeth by removing a portion of the wax embankment) can be obtained when calculating the occlusal vertical dimensions under the denture structure using this disclosure. In other words, an optimal wax embankment can be fabricated, while it is easy to check whether the occlusal vertical dimensions through the wax embankment match the occlusal vertical dimensions of the existing denture in use.

[0047] As mentioned above, the number of times the patient's oral structure can be directly scanned can be minimized, thus reducing the number of times the patient visits the dentist during the denture manufacturing process. Furthermore, the number of times the dentist directly checks whether the denture matches the patient's edentulous jaw and whether the bite is appropriate can also be reduced during the denture manufacturing process.

[0048] Furthermore, the method for reproducing the occlusal vertical dimension for denture manufacturing according to this disclosure can also be used to manufacture dentures quickly and accurately, while reducing the number of trial and error attempts in adjusting the occlusal vertical dimension of the denture and determining the degree of matching with the edentulous jaw compared to the traditional denture manufacturing process.

[0049] The present disclosure has been described above with exemplary embodiments, but the scope of the present disclosure is not limited to the forms described and shown above.

[0050] For example, it has been described that shape information acquired using intraoral scanner 10 is received in operations (a) to (c), however, shape information acquired by using typical scanners or measuring devices other than intraoral scanner 10 may also be used.

[0051] Furthermore, the operation (f) for displaying edentulous jaw shape information and denture shape information on the display device has been described above. However, in some cases, operation (f) can be omitted during the implementation of the occlusal vertical dimensioning method for denture fabrication. Moreover, even when operation (f) is performed, all edentulous jaw shape information, denture shape information, and occlusal shape information can be displayed. Furthermore, operation (f) can be performed to display the shape of the patient's oral cavity and dentures in various ways not described above, such as displaying only some of these types of information or displaying these types of information in a way that allows them to overlap.

[0052] Furthermore, as described above, the occlusal shape information received by the occlusal receiving unit 40 through operation (c) is the shape information of the denture structure and oral cavity in the maxillary and mandibular occlusion state when the patient is wearing a denture structure in the edentulous jaw. However, when the patient is wearing a denture structure in both the maxilla and mandible, in operation (c), the occlusal receiving unit may only receive the shape information of the occluding denture structure as the occlusal shape information.

Claims

1. A method for reproducing the occlusal vertical dimension in denture manufacturing, the method comprising: Operation (a): Obtain edentulous jaw shape information, which is the shape information of at least one of the patient's maxilla and mandible in the edentulous state; Operation (b): Obtain denture shape information, which is shape information of a denture structure having a corresponding shape that engages with one of the patient's maxilla and mandible in a edentulous state; wherein, the denture shape information includes shape information of the inner surface of the denture structure corresponding to the edentulous jaw shape information; Operation (c): Obtain occlusal shape information, which is the shape information of the denture structure when the maxilla and mandible occlude when the patient wears the denture structure on an edentulous jaw; Operation (d): With the corresponding surfaces of the edentulous jaw shape information and the denture shape information aligned with each other, align and arrange the corresponding surfaces with the occlusal shape information; and Operation (e): Calculate the positional relationship between the maxilla and mandible while the edentulous jaw shape information, the denture shape information, and the occlusal shape information are aligned by operation (d).

2. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 1, wherein, After operation (a) is performed, In operation (b), the denture shape information is obtained by aligning a scanned photograph acquired using a scanner with the edentulous jaw shape information.

3. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 1, wherein, After operation (a) is performed, In operation (b), the denture shape information is obtained by merging multiple scan images acquired using a scanner, and at least one scan image constituting the surface corresponding to the edentulous jaw shape information in the denture shape information is aligned with the denture shape information.

4. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 3, wherein, In operation (b), while acquiring the denture shape information, at least one scanned image constituting the surface corresponding to the edentulous jaw shape information in the denture shape information is aligned with the denture shape information.

5. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 1, wherein, In operation (b), only a portion of the surface of the denture shape information corresponding to the edentulous jaw shape information is acquired.

6. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 1, wherein, In operation (e), the difference in relative position and orientation between the maxilla and mandible is further calculated.

7. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 1 or 6, wherein, In operation (a), the edentulous jaw shape information is obtained by scanning the edentulous portions of the patient's maxilla and mandible using a scanner, and In operation (b), the shape information of the denture is obtained by scanning the denture structure using the scanner.

8. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 1 or 6, wherein, In operation (b), the shape information of the denture is obtained by scanning the denture structure using a scanner, and In operation (a), the shape information of the edentulous jaw is obtained by reversing the shape of the inner surface, and the inner surface contacts the edentulous jaw of the denture structure with the denture shape information obtained in operation (b).

9. The method for reproducing the occlusal vertical dimension for denture manufacturing according to any one of claims 1-6, wherein, In operation (a), the shape information of the edentulous jaw is obtained by scanning the inner surface of the denture structure in contact with the edentulous jaw using a scanner.

10. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 9, wherein, In operation (a), the shape information of the edentulous jaw, obtained by scanning the inner surface of the denture structure in contact with the edentulous jaw using a scanner, is reversed.

11. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 9, wherein, In operation (b), an impression corresponding to the shape of the patient's edentulous jaw is used as at least a part of the denture structure.

12. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 8, wherein, In operation (b), the denture structure is a combination of a denture and an impression for making a mold of the patient's edentulous jaw.

13. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 12, wherein, In operation (b), the shape information of the denture is obtained by combining information obtained from scanning the inner surface of the impression of the denture structure and the outer surface of the denture of the denture structure.

14. The method for reproducing the occlusal vertical dimension for denture manufacturing according to any one of claims 1-6, wherein, The denture structure described in operation (b) is one of a denture and a wax rim.

15. The method for reproducing the occlusal vertical dimension for denture manufacturing according to any one of claims 1-6, wherein, In operation (a), when the patient has no teeth in both the maxilla and mandible, the shape information of the edentulous jaw for each of the maxilla and mandible is obtained; and when the patient has no teeth in only one of the maxilla and mandible, the shape information of that edentulous jaw is obtained. In operation (b), when the patient has no teeth in both the maxilla and mandible, the prosthesis shape information of the prosthesis structure of each of the maxilla and mandible is obtained, and when the patient has no teeth in only one of the maxilla and mandible, the prosthesis shape information of the prosthesis structure on the edentulous jaw is obtained.

16. The method for reproducing the occlusal vertical dimension for denture manufacturing according to any one of claims 1-6, further comprising an operation (f) of displaying the edentulous jaw shape information and the denture shape information on a display device.

17. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 16, wherein, In operation (f), the display device shows the state on which the edentulous jaw shape information and the denture shape information in operation (d) are aligned with the occlusal shape information.

18. The method for reproducing the occlusal vertical dimension for denture manufacturing according to claim 17, wherein, In operation (f), at least one of the edentulous jaw shape information, the denture shape information, and the occlusal shape information is selectively displayed on the screen.

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