Method and apparatus for displaying modeling image of oral for manufacturing insert, and recording medium

Abstract

A method, apparatus, and recording medium are disclosed, according to one embodiment, the method comprising the steps of: acquiring scan data of an oral cavity; acquiring undercut data including data on an undercut position and an undercut depth determined based on an insertion path of an insertion body corresponding to the oral cavity; acquiring an oral modeling image including an undercut region divided into a plurality of regions based on the scan data and the undercut data; acquiring an updated oral cavity modeling image based on an undercut depth of a region adjacent to a target region according to a user input applied to the target region including one of the plurality of regions; and displaying the updated oral cavity modeling image.

Description

Technical Field

[0001] The present disclosure relates to the technical field of oral modeling images showing undercuts used in the fabrication of dentures for edentulous mouths. Background Art

[0002] In the related art, undercut refers to a specific area adjacent to the curve formed between the labial, buccal or lingual skin and the gums in the oral cavity, which is used to improve the fit of an insert (e.g., a denture) inserted into the oral cavity of an edentulous patient. The presence, depth or area of ​​undercut may vary from patient to patient.

[0003] Depending on the presence, depth or area of ​​the undercut, the fit of the insert to the oral cavity or the ease with which the insert can be smoothly inserted into the oral cavity may vary, and therefore the degree of pain experienced by the patient may vary. Additionally, by pre-identifying the patient's undercuts, the user can more easily determine whether surgery on the patient's oral cavity is required before manufacturing the insert.

[0004] Therefore, it can be seen that it is important to utilize information about the patient's undercut to improve the fit, retention, ease of insertion, and pain associated with inserting the insert, and to determine whether surgery is required before manufacturing the insert. However, conventional techniques have the problem of only providing limited functionality, such as only displaying the depth, area, etc. of the patient's undercut. Summary of the invention

[0005] Technical issues

[0006] The embodiments of the present disclosure are intended to solve the problems of the related art described above, and can provide a method and apparatus for updating the depth of an undercut region appearing on an oral modeling image, and a computer program stored in a recording medium. The present disclosure solves the following technical problems: by displaying an updated oral modeling image including an undercut region with an updated depth or similar feature, an insert having improved fit, retention, ease of insertion, and pain reduction can be manufactured, while also enabling a user to easily determine whether surgery on the patient's oral cavity is required before manufacturing the insert.

[0007] The technical problems to be solved are not limited to the above-mentioned problems, and may include various other technical problems within a scope obvious to those of ordinary skill in the art.

[0008] Technical Solutions

[0009] According to a first aspect of the present disclosure, a method for displaying an oral modeling image for manufacturing an insert may include the following steps: acquiring scanning data of the oral cavity; acquiring undercutting data, the undercutting data including data on an undercutting position and an undercutting depth determined based on an insertion path of the insert corresponding to the oral cavity; acquiring an oral modeling image including an undercutting area divided into a plurality of areas based on the scanning data and the undercutting data; acquiring an updated oral modeling image based on an undercutting depth of an area adjacent to the target area based on user input applied to a target area including one of the plurality of areas; and displaying the updated oral modeling image.

[0010] Additionally, a plurality of regions may be distinguished based on the undercut depth, and each region may correspond to a different color.

[0011] Additionally, acquiring the updated oral modeling image may include updating an undercut depth of the target region according to undercut depths of neighboring regions.

[0012] Additionally, the undercut area may be determined based on an insertion path that minimizes the depth of the undercut area among a plurality of insertion paths.

[0013] Additionally, the plurality of regions may include a maxillary tuberosity buccal undercut region based on a buccal region along a connecting line connecting the maxillary tuberosity landmarks.

[0014] Additionally, the color of the numerical value displayed to indicate the depth value of the maxillary tuberosity buccal undercut area may be determined based on the sum of the undercut depth values ​​of two areas constituting the maxillary tuberosity buccal undercut area included in the undercut area.

[0015] Additionally, acquiring the updated oral modeling image may include the steps of: determining a target region for undercut update based on a user input applied to the undercut region; and updating an undercut depth of the target region to correspond to an undercut depth of an adjacent region.

[0016] Additionally, acquiring the undercut data may include determining the undercut data based on the plurality of insertion paths such that the undercut depth is minimized.

[0017] Additionally, the plurality of regions may include a plurality of pixels included in the undercut region, and colors corresponding to the plurality of regions may be determined according to undercut depths of the plurality of regions.

[0018] In addition, a plurality of regions may be distinguished based on a range of undercut depths of the undercut region, and colors corresponding to the plurality of regions may be determined according to the range of the undercut depths.

[0019] According to a second aspect of the present disclosure, a device for displaying an oral modeling image for manufacturing an insert may include: a receiving unit configured to acquire scanning data of the oral cavity and acquire undercutting data, the undercutting data including data about an undercutting position and an undercutting depth determined based on an insertion path of the insert corresponding to the oral cavity; a processor configured to acquire an oral modeling image including an undercutting area divided into a plurality of areas based on the scanning data and the undercutting data, and acquire an updated oral modeling image based on an undercutting depth of an area adjacent to the target area according to a user input applied to a target area including one of the plurality of areas; and a display configured to display the updated oral modeling image.

[0020] Additionally, a plurality of regions may be distinguished based on the undercut depth, and each region may correspond to a different color.

[0021] Additionally, the plurality of regions may include a maxillary tuberosity buccal undercut region based on a buccal region along a connecting line connecting the maxillary tuberosity landmarks.

[0022] Additionally, the processor may determine a target area for undercut update based on user input applied to the undercut area, and may update the undercut depth of the target area to correspond to the undercut depth of the adjacent area.

[0023] According to a third aspect of the present disclosure, there may be provided a computer-readable recording medium having stored thereon a program which, when executed by a computer system, causes the computer system to execute the method of the first aspect.

[0024] Additionally, other specific details are included in the detailed description and accompanying drawings.

[0025] Beneficial Effects

[0026] According to one embodiment, a user may easily identify undercut regions having a different depth than adjacent undercut regions.

[0027] Additionally, the depth of the undercut area may be updated by simple user input.

[0028] Furthermore, the insertion path of the insertion body with minimal undercut can be easily determined.

[0029] Furthermore, by displaying the undercut area when updating the insertion path, the user can easily determine the optimal insertion path.

[0030] Furthermore, the fit and pain associated with inserting an insert made in accordance with the present disclosure may be improved compared to inserts made using conventional techniques.

[0031] Additionally, the user can easily determine whether surgery on the patient's mouth is required prior to manufacturing the insert.

[0032] The effects of the present disclosure are not limited to the above-mentioned effects, and it should be understood that the effects of the present disclosure include all effects that can be inferred from the detailed description or the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram showing an example configuration of an apparatus according to an embodiment.

[0034] Figure 2 is a flow chart illustrating an example of a method for displaying an updated oral modeling image according to one embodiment.

[0035] Figure 3 : is a diagram showing an example of displaying a maxillary labial undercut region determined based on an insertion path of a maxillary insert according to one embodiment.

[0036] Figure 4 is a diagram showing an example of determining and displaying a maxillary tuberosity buccal undercut area, a mandibular tuberosity buccal undercut area, and a mandibular tuberosity lingual undercut area according to one embodiment.

[0037] Figure 5 is a diagram illustrating an example of updating an undercut depth of a target area based on a user input applied to the target area according to one embodiment.

[0038] Figure 6 is a diagram showing an example of a mandibular labial undercut region determined based on an insertion path of a mandibular insert according to one embodiment. DETAILED DESCRIPTION

[0039] The terms used in the present invention are selected from the commonly used terms currently in wide use in consideration of their functions in the present invention. However, the terms may be different according to the intention of a person of ordinary skill in the art, precedents, or the emergence of new technologies. In addition, in certain cases, the terms are arbitrarily selected by the applicant of the present invention, and the meanings of these terms will be described in detail in the corresponding parts of the detailed description. Therefore, the terms used in the present invention are not merely designations of the terms, but are defined based on the meanings of the terms and the content throughout the present invention.

[0040] Throughout the specification, it will be understood that when a component "includes (or includes)" an element, unless there is another description to the contrary, it should be understood that the component does not exclude another element, but may also include another element. In addition, the term "unit (or part)" used in the specification refers to a unit for processing at least one function or operation, and the unit can be implemented by hardware, software, or a combination of hardware and software.

[0041] The present invention will now be described more fully with reference to the accompanying drawings so that those skilled in the art can carry out the present invention without difficulty. However, the present invention can be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein.

[0042] Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings.

[0043] Figure 1 is a schematic diagram showing an example configuration of an apparatus ( 100 ) according to one embodiment.

[0044] Reference Figure 1 , the device (100) may include a receiving unit (110), a processor (120) and a display (130).

[0045] The receiving unit (110) according to one embodiment can acquire undercut data, the undercut data including data on an undercut position and an undercut depth determined based on scan data of the oral cavity and an insertion path of an insertion body corresponding to the oral cavity. The undercut position and the undercut depth can be obtained based on scan data of the maxilla and the mandible, and can include the undercut position and the undercut depth of both the maxilla and the mandible.

[0046] For example, scan data of the oral cavity may include three-dimensional (3D) scanned images of the edentulous maxilla and mandible.

[0047] Reference Figure 3 and Figure 6 The insert (330, 630) corresponding to the oral cavity may include a denture that can be inserted into the edentulous maxilla and mandible, etc., and the insertion path (340, 640) may be based on the Figure 3 , Figure 4 and Figure 6 The three-dimensional direction in which the insert (330, 630) can be roughly inserted into the maxillary bone and the mandibular bone is determined by the operation input (e.g., direction operation input, etc.) applied to the maxillary insertion path UI (320) and the mandibular insertion path UI (430) shown in the figure and can be displayed on the oral modeling image (300, 301, 400, 601) to indicate the three-dimensional direction in which the insert (330, 630) can be roughly inserted into the maxillary bone and the mandibular bone. Figure 3 The insertion path (340) shown in (c) and Figure 6 The insertion path (640) shown in (c) represents the path along which the insert body (330, 630) is inserted in the occlusal (vertical) direction of the maxillary base modeling image (300) and the mandibular base modeling image (400), respectively. The oral modeling images (300, 301, 400, 601) may include the maxillary base modeling image (300), the maxillary lateral modeling image (301), the mandibular base modeling image (400), and the mandibular lateral modeling image (601).

[0048] Furthermore, in one embodiment, Figures 3 to 6 As shown, the undercut area (310, 421, 422, 441, 442, 443, 444, 610) can include the deepest area and adjacent areas of the labial curve of the maxilla and mandible, the buccal curve of the maxillary tuberosity, and the buccal curve and lingual curve of the mandibular tuberosity. Basically, the undercut area (310, 421, 422, 441, 442, 443, 444, 610) can be obtained from the entire maxilla and mandible. The undercut area (310, 421, 422, 441, 442, 443, 444, 610) can include not only information about the location of the undercut, but also information about the depth of the undercut.

[0049] Additionally, the receiving unit (110) may receive information provided from an external device (not shown). For example, the receiving unit (110) may include a wired or wireless communication device that can be connected to an external device or external component (not shown) through a network or a signal processing module to receive various types of information.

[0050] According to one embodiment, the processor (120) can determine a target area (510) for undercut update based on user input applied to the undercut area (310, 421, 422, 441, 442, 443, 444, 610), and can update the undercut depth of the target area (510) to correspond to the undercut depth of the adjacent area.

[0051] In addition, the processor (120) can perform a series of operations to obtain an updated oral modeling image (500), and in addition to the receiving unit (110) and the display, it can also be electrically connected to components not shown to control the data flow between them. For this purpose, the processor (120) can be implemented as a central processing unit (CPU) that controls the overall operation of the device (100).

[0052] The display (130) according to one embodiment may display scan data, undercut regions (310, 421, 422, 441, 442, 443, 444, 610), an oral modeling image (300, 301, 400, 601), and an updated oral modeling image (500).

[0053] In addition, those skilled in the art should understand that, in addition to Figure 1 The components shown in the figure may also include other common components in the device (100). According to one embodiment, the device (100) may also include a user interface unit for receiving user input and a storage unit configured to store data described throughout this specification.

[0054] Will refer to Figures 2 to 5 The above-mentioned embodiments are described in more detail.

[0055] Figure 2 is a flow chart illustrating an example of a method for displaying an updated oral modeling image according to one embodiment.

[0056] In step S210, the device (100) may acquire oral cavity scan data. For example, the oral cavity scan data may include 3D scanned images of edentulous maxilla and mandible.

[0057] In step S220, the device (100) may acquire undercutting data including data on an undercutting position and an undercutting depth determined based on an insertion path of the insertion body corresponding to the oral cavity.

[0058] In one embodiment, the undercut data may include information regarding an undercut location and an undercut depth determined based on a predefined insertion path (eg, a default insertion path) of the insert body.

[0059] In step S230, the apparatus (100) may acquire an oral modeling image including an undercut region divided into a plurality of regions based on the scan data and the undercut region.

[0060] In this regard, refer to Figures 3 to 6 The undercut area (310, 421, 422, 441, 442, 443, 444, 610) may be composed of a value of a minimum unit (eg, a pixel, other unit area, etc.), and may include a plurality of areas distinguished based on an undercut depth.

[0061] Additionally, the undercut area (310, 421, 422, 441, 442, 443, 444, 610) can be determined based on operational inputs applied to the maxillary insertion path UI (320) and the mandibular insertion path UI (430), and can be determined based on an insertion path (340, 640) indicating a three-dimensional direction in which the insert (330, 630) can be generally inserted into the oral cavity.

[0062] like Figures 3 to 6As shown, the undercut area (310, 421, 422, 441, 442, 443, 444, 610) can be determined differently according to the insertion path (340, 640) of the insert (330, 630). For example, the device (100) can determine the minimum insertion path that minimizes the undercut depth (or size) among the multiple undercut areas (310, 421, 422, 441, 442, 443, 444, 610) obtained according to the multiple insertion paths, and then determine and display one or more undercut areas from the multiple undercut areas (310, 421, 422, 441, 442, 443, 444, 610) based on the minimum insertion path.

[0063] For example, the device (100) can determine the maximum value among the undercut depth values ​​corresponding to each undercut area among multiple undercut areas (310, 421, 422, 441, 442, 443, 444, 610), and determine at least one insertion path corresponding to the undercut area with the smallest maximum value as the minimum insertion path.

[0064] Specifically, based on a first undercut region having a maximum undercut depth value of 0.5 mm and a second undercut region having a maximum undercut depth value of 0.3 mm, the device (100) can determine that the insertion path corresponding to the second undercut region showing a lower maximum depth value is the minimum insertion path.

[0065] The more the undercut depth is minimized, the more the ease of donning the inserter during insertion can be improved.

[0066] In another embodiment, the minimum insertion path may refer to an insertion path in which the sum of all undercut depth values ​​displayed on the undercut area (310, 421, 422, 441, 442, 443, 444, 610) is at a minimum (or falls within a predetermined level), or in which the size of the undercut area where the undercut depth value exceeds a preset value is at a minimum.

[0067] The apparatus (100) can display an undercut area corresponding to a minimum insertion path obtained based on a plurality of undercut areas (310, 421, 422, 441, 442, 443, 444, 610).

[0068] In one embodiment, there may be an instance where the insertion path (340, 640) is updated based on user input to the maxillary insertion path UI (320) or the mandibular insertion path UI (430). For example, the device (100) may display an updated undercut region corresponding to the insertion path updated according to the user input.

[0069] Additionally, the updated undercut region may include a plurality of regions, and the regions may be displayed in a color corresponding to an undercut depth with respect to the updated undercut region.

[0070] For example, since a plurality of regions may include a plurality of pixels, they may be distinguished into different plurality of regions based on the undercut depth, and each region may correspond to a different color according to the undercut depth value.

[0071] The device (100) may display the updated undercut area based on a color corresponding to the updated undercut depth value.

[0072] In another embodiment, multiple regions can be distinguished based on the range of undercut depths of the undercut regions (310, 421, 422, 441, 442, 443, 444, 610), and colors corresponding to the multiple regions can be determined according to the range of undercut depths. For example, regions with the same undercut depth among multiple regions can be distinguished by being assigned the same color.

[0073] Reference Figure 3 and Figure 6 , the undercut region (310, 610) may be displayed as a plurality of regions distinguished by undercut depths, and the regions may be displayed in different colors according to the undercut depths.

[0074] In addition, refer to Figure 4 Referring to the figure (a), along the connecting line connecting the maxillary tuberosity mark (410), the plurality of regions may include the maxillary tuberosity buccal undercut region (421, 422) based on the buccal region. Referring to the figure (c), along the connecting line connecting the mandibular tuberosity mark (440), the plurality of regions may include the mandibular tuberosity buccal undercut region (443, 444) based on the buccal region and the lingual region and the mandibular tuberosity lingual undercut region (441, 442).

[0075] For example, the maxillary tuberosity may refer to the molar region of the edentulous maxilla, and the mandibular tuberosity may refer to the molar region of the edentulous mandible. The maxillary tuberosity buccal undercut areas (421, 422), the mandibular tuberosity buccal undercut areas (443, 444), and the mandibular tuberosity lingual undercut areas (441, 442) may be among the most important areas for making the denture fit tightly in the oral cavity.

[0076] Based on the connection line connecting each maxillary tuberosity landmark (410), the maxillary tuberosity buccal undercut regions (421, 422) may be represented as two regions on the left and right sides of the oral scan data of the maxillary bone.

[0077] Based on the connecting lines connecting each mandibular tuberosity landmark (440), the mandibular tuberosity buccal undercut area (443, 444) and the mandibular tuberosity lingual undercut area (441, 442) can be represented as a total of four areas: two areas on the left side and two areas on the right side of the oral scan data.

[0078] The connection line may include a straight line connecting a plurality of maxillary tuberosity marks (410) and a straight line connecting a plurality of mandibular tuberosity marks (440), wherein the marks are acquired on the left and right sides of the oral scan data of the maxilla and the mandible, respectively. The maxillary tuberosity buccal undercut area (421, 422), the mandibular tuberosity buccal undercut area (443, 444), and the mandibular tuberosity lingual undercut area (441, 442) may be displayed on the oral scan data of the maxilla and the mandible corresponding to the positions of the connection line.

[0079] In a related embodiment, the connecting line can be moved along a preset direction (e.g., front, back) on the oral scan data of the maxilla and mandible according to user input, and the movable direction can correspond to the positions of multiple maxillary tuberosity landmarks (410), mandibular buccal undercut areas (443, 444), and mandibular lingual undercut areas (441, 442).

[0080] The maxillary tuberosity buccal undercut area (421, 422), the mandibular buccal undercut area (443, 444), and the mandibular lingual undercut area (441, 442) corresponding to the maxillary tuberosity mark (410) and the mandibular tuberosity mark (440) located at the point where the connecting line is moved according to user input can be displayed on the oral scanning data or oral modeling image (300, 301, 400, 601) of the maxilla and mandible.

[0081] In step S240, the apparatus (100) may acquire an updated oral modeling image (500) based on the undercut depth of an area adjacent to the target area (510) according to a user input applied to the target area (510) including any one of the plurality of areas, and may display the updated oral modeling image (500). In one example, the oral modeling image (300, 301, 400, 601) may include modeling images of the maxilla and mandible, and therefore, the updated oral modeling image (500) may also include updated modeling images of the maxilla and mandible.

[0082] In one embodiment, the apparatus (100) may determine a target area (510) for undercut updating based on a user input applied to any one of the plurality of areas, and may apply a visual effect to the determined target area (510). Figure 5, the device (100) can display a target area (510) determined based on a user input applied to any one of the multiple areas by applying a visual effect (e.g., border highlighting, color change, etc.) to indicate that the target area (510) has been selected in response to the selection input.

[0083] Additionally, the apparatus (100) may update the undercut depth of the target region (510) based on the undercut depths of adjacent regions (eg, the undercut depths of one or more of the regions adjacent to the target region (510)).

[0084] For example, if the undercut depth of the target area (510) is deeper than the undercut depth of the adjacent area, the contact strength of the insert (330, 630) may be reduced. Therefore, the device (100) may update the undercut depth of the target area (510) to correspond to the undercut depth of one or more areas of the area adjacent to the target area (510). Therefore, the undercut depth of the target area (510) may be updated to be similar or identical to the undercut depth of the adjacent area, so that an updated oral modeling image (500) may be acquired.

[0085] Figure 3 is a diagram showing an example of displaying a maxillary labial undercut region (310) determined based on an insertion path (340) of a maxillary insert according to one embodiment.

[0086] Reference Figure 3 The device (100) can acquire and display the maxillary labial undercut area (310), which includes data on the undercut position and undercut depth determined based on the insertion path (340) of the maxillary insert.

[0087] The displayed maxillary labial undercut region (310) may be divided into a plurality of regions, and the regions may be updated based on the insertion path (340) of the maxillary insert.

[0088] The user input for updating the insertion path (340) of the maxillary insert may include, for example, a direction update input of the maxillary insertion path UI (320).

[0089] According to one embodiment, Figure 3 (a) and (b) are diagrams visually illustrating examples of a maxillary labial undercut region (310) formed when a maxillary insert (330) is inserted from the maxillary side of a patient along an insertion path (340) of the maxillary insert.

[0090] For example, the device (100) can display the maxillary lateral modeling image (301) and the maxillary insert (330), as shown in Figure (a). Subsequently, based on the insertion path (340) of the maxillary insert determined according to the user input of the preset insertion path or the maxillary insertion path UI (320) (which can be displayed on one side of the maxillary lateral modeling image (301)), the device can display an image in which the maxillary insert (330) is matched on the maxillary lateral modeling image (301), as shown in Figure (b).

[0091] Specifically, refer to Figure 3 (b) shows a state where the maxillary lateral modeling image (301) is matched with the maxillary insert (330). The area marked with a circle in the maxillary lateral modeling image (301) shown in (a) includes a concave area designed to be similar to a typical oral structure of a patient. As shown in (b) depicting the maxillary insert (330) inserted into the maxillary lateral modeling image (301) along an insertion path (340), when the maxillary insert (330) is inserted into the maxillary bone, an undercut area (310) may be formed in the area marked with a circle due to the concave area.

[0092] In one embodiment, the device (100) can obtain matching reference points (not shown) based on the maxillary lateral modeling image (301), the maxillary insert (330) and the insertion path (340) of the maxillary insert, and can display the matching results by matching each image based on the matching reference points, as shown in Figure (b).

[0093] According to one embodiment, Figure 3 (c) and (d) are diagrams visually illustrating examples of the maxillary labial undercut region (310) formed when the maxillary insert (330) is inserted into the patient's maxilla along the maxillary insert insertion path (340) at the time shown in the figure.

[0094] For example, the device (100) can display the maxillary base modeling image (300) and the maxillary insert (330), as shown in FIG. (c).

[0095] In addition, as shown in figure (b), the device (100) can display an image indicating that the maxillary labial undercut area (310) on the maxillary base modeling image (300) is updated according to the insertion path (340) of the maxillary insert, and the insertion path (340) of the maxillary insert is determined based on user input to the maxillary insertion path UI (320) displayed on one side of the maxillary base modeling image (300).

[0096] This embodiment can be applied equally or similarly to (a) and (b).

[0097] In this manner, by displaying the maxillary labial undercut region (310) formed when the maxillary insert (330) is inserted into the patient's oral cavity as shown in the figure, the user can intuitively and easily understand the information about the undercut.

[0098] Figure 4 is a diagram showing an example of determining and displaying a maxillary tuberosity buccal undercut area, a mandibular tuberosity buccal undercut area, and a mandibular tuberosity lingual undercut area according to one embodiment.

[0099] Reference Figure 4 , the device (100) can obtain the maxillary tuberosity mark (410) and the mandibular tuberosity mark (440) from the oral modeling images (300, 301, 400, 601) shown in (a) and (c). Then, based on the buccal area and the lingual area, the device can obtain and display the maxillary tuberosity buccal undercut area (421, 422), the mandibular tuberosity buccal undercut area (443, 444) and the mandibular tuberosity lingual undercut area (441, 442) on the oral modeling images (300, 301, 400, 601) along the connecting lines connecting the maxillary tuberosity mark (410) and the mandibular tuberosity mark (440) respectively.

[0100] In one embodiment, when the insertion path of the maxillary inserter or the insertion path of the mandibular inserter is updated based on user input to the maxillary insertion path UI (320) or the mandibular insertion path UI (420), the buccal undercut area (421, 422) of the maxillary tuberosity, the buccal undercut area (443, 444) of the mandibular tuberosity, and the lingual undercut area (441, 442) of the mandibular tuberosity displayed based on the connection line between the maxillary bone and the mandibular bone can be updated and displayed.

[0101] When the buccal undercut area of ​​the maxillary tuberosity (421, 422), the buccal undercut area of ​​the mandibular tuberosity (443, 444), and the lingual undercut area of ​​the mandibular tuberosity (441, 442) are updated, they are updated based on the connection line between the maxillary bone and the mandibular bone, so that only the size and depth values ​​of the undercut areas can be updated and displayed without changing their positions.

[0102] In one embodiment, the numerical values ​​displayed to indicate the depth values ​​of the buccal undercut area (421, 422) of the maxillary tuberosity, the buccal undercut area (443, 444) of the mandibular tuberosity, and the lingual undercut area (441, 442) of the mandibular tuberosity can be displayed as shown in (b) and (d).

[0103] In one embodiment, since the buccal undercut area (421, 422) of the maxillary tuberosity, the buccal undercut area (443, 444) of the mandibular tuberosity, and the lingual undercut area (441, 442) of the mandibular tuberosity are the most important areas when manufacturing the insert (330, 630), the device (100) can display these undercut areas as the default display when the maxillary base modeling image (300) and the mandibular base modeling image (400) are displayed based on the axial plane.

[0104] In one embodiment, the colors of the maxillary tuberosity buccal undercut area (421, 422), the mandibular tuberosity buccal undercut area (443, 444), and the mandibular tuberosity lingual undercut area (441, 442) can be determined in the same manner as the colors of the maxillary labial undercut area (310) and the mandibular labial undercut area (610).

[0105] In one embodiment, the color of the numerical value displayed to indicate the depth value of each undercut area can be determined based on the sum of the undercut depth values ​​of each area constituting the buccal undercut area of ​​the maxillary tuberosity (421, 422), the buccal undercut area of ​​the mandibular tuberosity (443, 444), and the lingual undercut area of ​​the mandibular tuberosity (441, 442).

[0106] For example, in the case of the maxillary tuberosity buccal undercut region (421, 422), the color of the numerical value displayed to indicate the depth value of the right undercut region (421) and the left undercut region (422) constituting the maxillary tuberosity buccal undercut region can be determined and displayed to correspond to each undercut depth value. For example, if the undercut depth value is less than a first value (e.g., 0.5 mm), it can be displayed in a first color (e.g., green); if it is greater than or equal to the first value (e.g., 0.5 mm) but less than a second value (e.g., 1 mm), it can be displayed in a second color (e.g., blue); and if it is equal to or greater than the second value (e.g., 1 mm), it can be displayed in a third color (e.g., red).

[0107] In another example, the color of the numerical value displayed to indicate the depth value of the right undercut area (421) and the left undercut area (422) may be determined based on whether the sum of the depths of the right undercut area (421) and the left undercut area (422) is greater than or equal to a third value (e.g., 1.5 mm). For example, if the sum of the depths of the right undercut area (421) and the left undercut area (422) is less than the third value, the numerical value indicating the depth value of the right undercut area (421) and the left undercut area (422) may be displayed in green, and if it is greater than or equal to the third value, the numerical value may be displayed in red.

[0108] In another example, the color of the numerical value displayed to indicate the depth value of the right undercut area (421) and the left undercut area (422) constituting the buccal area (421, 422) of the maxillary tuberosity may be determined based on whether any one of the depths of the right undercut area (421) and the left undercut area (422) is greater than or equal to a fourth value (e.g., 2 mm) and whether the sum of the depths of the right undercut area (421) and the left undercut area (422) is greater than or equal to a fifth value (e.g., 3 mm). Alternatively, if the sum of the depths of the right undercut area (421) and the left undercut area (422) is less than the fifth value and the right undercut area (421) or the left undercut area (422) has a depth greater than or equal to the fourth value, the color of the numerical value displayed to indicate the depth value of the right undercut area (421) and the left undercut area (422) constituting the buccal area (421, 422) of the maxillary tuberosity may be displayed in yellow. Alternatively, if the sum of the depths of the right undercut area (421) and the left undercut area (422) is less than the fifth value, and both the right undercut area (421) and the left undercut area (422) have a depth less than the fourth value, the numerical value displayed to indicate the depth values ​​of the right undercut area (421) and the left undercut area (422) constituting the maxillary buccal undercut area (421, 422) may be displayed in green. In this case, even if the sum of the depths of the right undercut area (421) and the left undercut area (422) is small, if either of the right undercut area (421) and the left undercut area (422) has a larger depth, the color of the numerical value displayed to indicate the depths of the right undercut area (421) and the left undercut area (422) constituting the maxillary buccal undercut area (421, 422) may be displayed in yellow. This enables the user to intuitively identify the depth of the undercut area.

[0109] In this way, the colors of the numerical values ​​indicating the depth values ​​of the right undercut area (421) and the left undercut area (422) constituting the buccal undercut area (421, 422) of the maxillary tuberosity can be determined differently based on the undercut depths of the corresponding areas, and the numerical values ​​can be displayed, thereby enabling the user to easily understand the depth of the undercut area which is the most important factor when manufacturing the insert (330, 630).

[0110] Figure 5 is a diagram illustrating an example of updating an undercut depth of a target area based on a user input applied to the target area according to one embodiment.

[0111] Reference Figure 5, the device (100) can determine a target area (510) for undercut updating based on a user input applied to the target area on the displayed maxillary base modeling image (300), and can update the undercut depth of the target area (510) to correspond to the undercut depth of the adjacent area based on the update input applied to the determined target area (510). Specifically, Figure 5 As shown in (b), the target area (510) determined based on the user input may include an undercut depth corresponding to the target area (510). When the user input is applied to the menu shown in (b), the depth of the target area (510) may be updated to correspond to the undercut depth of the undercut area adjacent to the target area (510).

[0112] In one embodiment, the apparatus (100) may determine a target area (510) for undercut updating based on a user input applied to any one of a plurality of areas, and may apply a visual effect to the determined target area (510).

[0113] Reference Figure 5 , the device (100) can determine a target area (510) based on a user input applied to any one of the multiple areas, and display the target area (510) by applying a visual effect to indicate that the target area (510) has been selected.

[0114] Additionally, in one embodiment, the device (100) may provide an update interface that enables a user to update the undercut depth of the target area (510). The undercut depth update interface may include an adjustment menu for size and strength. The size may indicate a unit (e.g., 0.5 mm increments) for updating the range of the undercut depth according to the update input, and the strength may indicate a unit (e.g., 0.05 mm increments) for adjusting the undercut depth of the target area (510).

[0115] The device (100) may update the undercut depth of the target area (510) based on user input regarding size and intensity provided through an undercut depth update interface.

[0116] Reference Figure 5 As shown in the right figure of FIG. 5 , when an update input for the undercut depth is applied by the value of x, the undercut depth of the target area ( 510 ) may be updated to correspond to the undercut depth of the adjacent area.

[0117] The device (100) may determine a target area (510) based on a user input applied to any one of a plurality of areas.

[0118] For example, the user input may include a selection input (e.g., a click input, a touch input, etc.) for any one of the plurality of regions displayed and distinguished by color, or a drag input across the plurality of regions. When the drag input is applied to the plurality of regions, the determined target region (510) may be determined by a connection line connecting the plurality of regions regardless of the boundaries of the plurality of regions.

[0119] After the target area (510) is determined, the apparatus (100) may update the undercut area of ​​the target area (510) based on update input for size and intensity provided from the undercut depth update interface.

[0120] For example, if the intensity value increases according to the update input, the undercut depth of the target area (510) can be reduced to correspond to the undercut depth of the adjacent area, and if the intensity value decreases according to the update input, the undercut depth of the target area (510) can be increased, making the undercut area deeper.

[0121] After the undercut area of ​​the target area (510) is updated, the device (100) can display the updated target area (510) and a visual effect indicating that the target area (510) has been selected. The visual effect can be removed based on user input regarding removal of the visual effect or user input applied to an area outside the updated modeling image.

[0122] The above-mentioned embodiments may be applied equally or similarly to the maxillary lateral modeling image (301), the mandibular base modeling image (400), and the mandibular lateral modeling image (601).

[0123] In this manner, the apparatus (100) may update the depth of the undercut region based on user input applied to the undercut region.

[0124] In one embodiment, the device (100) can determine an undercut region to be displayed first from among a plurality of candidate undercut regions corresponding to a plurality of insertion paths (340, 640) based on a plurality of criteria. In addition, the device can determine which undercut region to display first based on weights assigned differently to the respective criteria according to their importance.

[0125] For example, the device (100) can determine which undercut area among multiple candidate undercut areas will be displayed first based on a weighted order of criteria, such as whether the insertion path (340, 640) corresponding to the undercut area corresponds to the reference insertion path, the undercut depth of the undercut area (310, 421, 422, 441, 442, 443, 444), and the size (or area) of the undercut area.

[0126] For example, the reference insertion path may generally include an insertion path (340, 640) for inserting the insertion body (330, 630). The direction in which the insertion body (330, 630) is inserted generally includes a diagonal direction from the front toward the maxilla in the case of the maxilla, and a vertical direction toward the occlusal surface in the case of the mandible. These directions may be directions that make it easier for the patient to insert the insertion body (330, 630).

[0127] Given that the insert (330, 630) is more likely to be inserted along a reference insertion path that is typically used when the insert is worn in the patient's mouth, the device can obtain insertion paths similar to the reference insertion path from multiple candidate undercut regions, and can assign the highest weight to the path with the highest similarity among the obtained similarities.

[0128] Additionally, because an appropriate level of undercut depth can enhance the fit and comfort of the insert (330, 630) when worn, the undercut depth may be assigned the second highest weight.

[0129] In addition, in order for the insert (330) to maintain an appropriate level of fit during insertion, a certain amount of undercut area (310, 421, 422, 441, 442, 443, 444) is required. However, if the undercut area (310, 421, 422, 441, 442, 443, 444) is too large, it may be difficult to attach and remove the insert (330). Therefore, the size of the undercut area is important. Nevertheless, since the undercut depth has a greater impact on the fit, comfort, and ease of insertion of the insert (330) than the size of the undercut area (310, 421, 422, 441, 442, 443, 444), the third highest weight can be assigned to the size of the undercut area.

[0130] The apparatus (100) may determine one undercut region to be displayed first from among a plurality of candidate undercut regions based on differently assigned weights, and may display the determined undercut region.

[0131] As reference Figure 5 The described implementation related to the aforementioned weights is presented as an example and should not be construed as being limited to the described implementation.

[0132] Figure 6 is a diagram showing an example of a mandibular labial undercut region (610) determined based on an insertion path (640) of a mandibular insert according to one embodiment.

[0133] Reference Figure 6The device (100) can acquire and display the mandibular labial undercut area (610), which includes data on the undercut position and undercut depth determined based on the insertion path (640) of the mandibular insert.

[0134] The displayed mandibular labial undercut region (610) may be divided into a plurality of regions, and the regions may be updated based on the insertion path (640) of the mandibular insert.

[0135] The user input for updating the insertion path (640) of the mandibular insert may include, for example, a direction update input of the mandibular insertion path UI (430).

[0136] According to one embodiment, Figure 6 (a) and (b) are diagrams visually showing examples of a mandibular labial undercut region (610) formed when a mandibular insert (630) is inserted from the mandibular side of the patient along an insertion path (640) of the mandibular insert.

[0137] For example, the device (100) can display the mandibular lateral modeling image (601) and the mandibular insert (630), as shown in Figure (a). Subsequently, based on the insertion path (640) of the mandibular insert determined according to the user input of the preset insertion path or the mandibular insertion path UI (430) (which can be displayed on one side of the maxillary lateral modeling image (601)), the device can display an image in which the mandibular insert (630) is matched on the mandibular lateral modeling image (601), as shown in Figure (b).

[0138] In one embodiment, the device (100) can obtain matching reference points (not shown) based on the mandibular lateral modeling image (601), the mandibular insert (630) and the insertion path (640) of the mandibular insert, and can display the matching results by matching each image based on the matching reference points, as shown in Figure (b).

[0139] According to one embodiment, Figure 6 (c) and (d) are diagrams visually illustrating examples of a mandibular labial undercut region (610) formed when a mandibular insert (630) is inserted into the mandible of a patient along an insertion path (640) of the mandibular insert at the time shown in the figure.

[0140] For example, the device (100) can display the mandibular base modeling image (400) and the mandibular insert (630), as shown in figure (c).

[0141] In addition, as shown in figure (b), the device (100) can display an image indicating that the mandibular labial undercut region (610) on the mandibular base modeling image (400) is updated according to the insertion path (640) of the mandibular insert, which is determined based on user input to the mandibular insertion path UI (430) displayed on one side of the mandibular base modeling image (400).

[0142] This embodiment can be applied equally or similarly to (a) and (b).

[0143] In this way, by displaying the mandibular labial undercut region (610) formed when the mandibular insert (630) is inserted into the patient's oral cavity as shown in the figure, the user can intuitively and easily understand the information about the undercut.

[0144] It should be understood that the order and combination of the steps shown above are only embodiments of the present disclosure, and without departing from the basic characteristics of the various components described in this specification, the order, combination, branching, function and execution subject may be changed for implementation with additional, fewer or different steps. Throughout this specification, the term "provide" or "providing" may be interpreted as: comprehensively including a process in which an object obtains specific information or directly or indirectly sends specific information to a specific object or receives specific information from a specific object, and including the execution of related operations required in the process.

[0145] The various embodiments described herein can be implemented as software, and the software includes one or more instructions stored in a storage medium (storage medium) (e.g., memory) that can be read by a machine (machine) (e.g., a display device or a computer). For example, the processor of the machine (e.g., processor 120) can call at least one instruction of one or more instructions stored in the storage medium and execute the instruction. This enables the machine to be operated to perform at least one function according to at least one instruction called. One or more instructions may include code generated by a compiler or code executable by an interpreter. A machine-readable storage medium may be provided in the form of a non-transitory storage medium. Among them, the term "non-transitory" only means that the storage medium is a tangible device and does not include a signal (signal) (e.g., an electromagnetic wave), but the term does not distinguish between semi-permanent storage of data in a storage medium and temporary storage of data in a storage medium.

[0146] Those skilled in the art will appreciate that various changes in form and detail may be made without departing from the above-described features. The disclosed methods should be considered in an illustrative sense only and not for purposes of limitation. The scope of the present disclosure is defined by the claims rather than by the foregoing description, and all differences within the scope of equivalents thereof are to be construed as included in the present disclosure.

Claims

1. A method for displaying an oral modeling image for manufacturing an insert, the method comprising the following steps: Obtaining oral scan data; acquiring undercut data including data on an undercut position and an undercut depth determined based on an insertion path of the insertion body corresponding to the oral cavity; acquiring an oral modeling image including an undercut region divided into a plurality of regions based on the scan data and the undercut data; acquiring an updated oral modeling image based on the undercut depth of an area adjacent to the target area according to a user input applied to a target area including one of the plurality of areas; as well as The updated oral modeling image is displayed.

2. The method according to claim 1, wherein: The plurality of regions are distinguished based on the undercut depth, and each region corresponds to a different color.

3. The method according to claim 1, wherein: Acquiring the updated oral modeling image includes updating the undercut depth of the target area according to the undercut depth of the adjacent area.

4. The method according to claim 1, wherein: The undercut area is determined based on an insertion path that minimizes a depth of the undercut area among a plurality of insertion paths.

5. The method according to claim 1, wherein: The plurality of regions include a maxillary tuberosity buccal undercut region based on a buccal region along a connecting line connecting maxillary tuberosity landmarks.

6. The method according to claim 5, wherein: The color of the numerical value displayed to indicate the depth value of the maxillary tuberosity buccal undercut region is determined based on the sum of the undercut depth values ​​of two regions constituting the maxillary tuberosity buccal undercut region included in the undercut region.

7. The method according to claim 1, wherein: Acquiring the updated oral modeling image comprises the following steps: determining the target area for undercut updating based on a user input applied to the undercut area; and The undercut depth of the target region is updated to correspond to the undercut depth of the adjacent region.

8. The method according to claim 1, wherein: Acquiring the undercut data includes determining the undercut data based on a plurality of insertion paths such that the undercut depth is minimized.

9. The method according to claim 1, wherein: The plurality of regions include a plurality of pixels included in the undercut region, and colors corresponding to the plurality of regions are determined according to undercut depths of the plurality of regions.

10. The method according to claim 1, wherein: The plurality of regions are distinguished based on a range of undercut depths of the undercut region, and colors corresponding to the plurality of regions are determined according to the range of the undercut depths.

11. A device for displaying an oral modeling image for manufacturing an insert, the device comprising: a receiving unit configured to acquire scan data of the oral cavity and acquire undercut data including data on an undercut position and an undercut depth determined based on an insertion path of an insertion body corresponding to the oral cavity; a processor configured to acquire an oral modeling image including an undercut region divided into a plurality of regions based on the scan data and the undercut data, and acquire an updated oral modeling image based on the undercut depth of a region adjacent to the target region according to a user input applied to a target region including one of the plurality of regions; as well as A display is configured to display the updated oral modeling image.

12. The device according to claim 11, wherein The plurality of regions are distinguished based on the undercut depth, and each region corresponds to a different color.

13. The device according to claim 11, wherein: The plurality of regions include a maxillary tuberosity buccal undercut region based on a buccal region along a connecting line connecting maxillary tuberosity landmarks.

14. The device according to claim 11, wherein: The processor is configured to determine the target area for undercut update based on user input applied to the undercut area, and update the undercut depth of the target area to correspond to the undercut depth of an adjacent area. 15 . A computer-readable recording medium having stored thereon a program which, when executed by a computer system, causes the computer system to execute the method according to claim 1 .

Images