Method, apparatus and recording medium for providing information for orthodontic accessories

Abstract

Disclosed are a method, an apparatus, and a recording medium according to an embodiment, the method comprising the steps of: a receiving section acquiring a pre-orthodontic tooth model indicating a pre-orthodontic state of a tooth model to which a virtual inspector is attached; the processor obtains a post-orthodontic tooth model indicating a post-orthodontic state of the tooth model; the processor obtains orthodontic force data based on a comparison result of the pre-orthodontic tooth model and the post-orthodontic tooth model; the processor acquires accessory-related information including information on whether or not an accessory is required for the orthodontic treatment based on inspector orthodontic force data indicating an orthodontic force corresponding to the inspector acquired from the orthodontic force data; and the output part displays the accessory related information.

Description

Technical Field

[0001] The present disclosure relates to technology for providing information for orthodontic attachments, and more particularly, to the technical field for providing attachment-related information based on orthodontic forces required to move teeth using clear aligners. Background Art

[0002] Various methods have traditionally been developed and used to move teeth to a desired position for orthodontic purposes.

[0003] One of these methods is a fixed orthodontic treatment method based on the principle of attaching devices (e.g., brackets) to teeth and applying force (e.g., elastic force of wires) to gradually move teeth. However, this method has the disadvantage of causing discomfort due to the long-term fixation of multiple devices in the patient's mouth.

[0004] To address the problems of fixed orthodontic treatment methods, removable orthodontic treatment methods have been introduced that move teeth by wearing a transparent device such as a mouthpiece on the teeth rather than using the elastic force of a wire attached to brackets fixed to the teeth. This removable treatment method greatly reduces the discomfort associated with traditional fixed treatment by allowing the patient to easily attach and remove the device.

[0005] According to the removable treatment method, the teeth are covered with a transparent device that directly applies force to push the teeth to their desired position. If the force applied by the device to directly push the teeth is insufficient, it is difficult to move the teeth to the desired position, which is a limitation of this method.

[0006] To overcome this limitation, removable treatment methods address the deficiencies of traditional methods by applying attachments with specific shapes to the tooth surface. However, the method of using attachments based on user experience presents challenges, including the difficulty in uniformly producing attachments in sets or one-offs, misuse of attachments hindering the intended tooth movement, and excessive use of attachments reducing the convenience of removable orthodontic treatment. Summary of the invention

[0007] Technical issues

[0008] The embodiments of the present disclosure, which aim to solve the above-mentioned problems of the related art, can provide a method, an apparatus and a computer program stored in a recording medium for providing accessory-related information for orthodontic treatment by using orthodontic force data obtained by using a pre-orthodontic model and a post-orthodontic model based on a tooth model.

[0009] According to an embodiment of the present disclosure, technical objectives include enhancing the orthodontic effect achieved with clear aligners by obtaining and analyzing different orthodontic force data for each tooth to provide attachment-related information.

[0010] The technical objectives to be solved are not limited to those described above, and may also include various technical objectives that will be apparent to those of ordinary skill in the art.

[0011] Technical Solution

[0012] According to the first aspect of the present disclosure, a method performed by a device for providing information for orthodontic accessories includes the following steps: obtaining an orthodontic pre-tooth model at a receiving part, the orthodontic pre-tooth model indicating the pre-orthodontic state of a tooth model to which a virtual checker is attached; obtaining an orthodontic post-tooth model at a processor, the orthodontic post-tooth model indicating the post-orthodontic state of the tooth model; obtaining orthodontic force data at the processor based on a comparison result between the orthodontic pre-tooth model and the orthodontic post-tooth model; obtaining accessory-related information including information about whether an accessory is required for orthodontic treatment based on checker orthodontic force data obtained from the orthodontic force data and representing the orthodontic force corresponding to the checker; and displaying the accessory-related information at an output part.

[0013] In one embodiment, the step of obtaining information related to the accessory may include determining whether the accessory is necessary based on the presence or absence of an orthodontic force corresponding to the checker.

[0014] In one embodiment, the step of obtaining accessory-related information may include the following steps: obtaining crown orthodontic force data from orthodontic force data, wherein the crown orthodontic force data represents the orthodontic force corresponding to the crown of a tooth model including a crown and an inspector; and using both the inspector orthodontic force data and the crown orthodontic force data to obtain accessory-related information.

[0015] In one embodiment, the step of using both the checker orthodontic force data and the crown orthodontic force data to obtain information related to the accessory may include the following steps: determining the checker orthodontic force based on the checker orthodontic force data, wherein the checker orthodontic force is the orthodontic force corresponding to the checker; determining the crown orthodontic force based on the crown orthodontic force data, wherein the crown orthodontic force is the orthodontic force corresponding to the crown; and determining whether the accessory is necessary based on whether the checker orthodontic force corresponds to the crown orthodontic force.

[0016] In one embodiment, the step of determining whether an accessory is necessary based on whether the checker orthodontic force corresponds to the crown orthodontic force may include: determining that the accessory is unnecessary when the checker orthodontic force can be replaced by the crown orthodontic force; and determining that the accessory is necessary when the checker orthodontic force cannot be replaced by the crown orthodontic force.

[0017] In one embodiment, the step of acquiring accessory-related information may include the following steps: determining the direction of the orthodontic force based on the magnitude and distribution of the force corresponding to the checker; and acquiring accessory-related information based on the direction of the orthodontic force.

[0018] In one embodiment, the step of acquiring information related to the attachment may include determining whether the attachment is necessary based on whether or not an orthodontic force corresponding to an edge adjacent region of the checker having an angular shape exists.

[0019] In one embodiment, the checker can be attached to the buccal side or the labial side of the crown and have a rectangular shape including a first edge adjacent area to a fourth edge adjacent area, and the step of obtaining accessory related information may include the following steps: determining the direction of the orthodontic force as at least one of the distal direction, the mesial direction, the cervical direction or the occlusal direction based on the area corresponding to the orthodontic force among the first edge adjacent area to the fourth edge adjacent area; and obtaining accessory related information based on the direction of the orthodontic force.

[0020] In one embodiment, the step of acquiring orthodontic force data may include determining the area corresponding to the orthodontic force and the magnitude of the orthodontic force based on the degree of separation between the orthodontic anterior teeth model and the orthodontic posterior teeth model when they are matched.

[0021] In one embodiment, the orthodontic force data may include data on the magnitude of the orthodontic force and data on the distribution of the orthodontic force.

[0022] According to a second aspect of the present disclosure, a device for providing information for orthodontic accessories includes: a receiving part, which is configured to obtain an orthodontic pre-tooth model indicating a pre-orthodontic state of a tooth model to which a virtual checker is attached, and a post-orthodontic tooth model indicating a post-orthodontic state of the tooth model; a processor, which is configured to obtain orthodontic force data based on a comparison result between the pre-orthodontic tooth model and the post-orthodontic tooth model, and obtain accessory-related information including information about whether an accessory is required for orthodontic treatment based on checker orthodontic force data representing the orthodontic force corresponding to the checker obtained from the orthodontic force data; and an output part, which is configured to display the accessory-related information.

[0023] In one embodiment, the processor can obtain crown orthodontic force data from orthodontic force data, wherein the crown orthodontic force data represents the orthodontic force corresponding to the crown of a tooth model including a crown and a checker, and use both the checker orthodontic force data and the crown orthodontic force data to obtain accessory related information.

[0024] In one embodiment, the processor can determine the checker orthodontic force as the orthodontic force corresponding to the checker based on the checker orthodontic force data, determine the crown orthodontic force as the orthodontic force corresponding to the crown based on the crown orthodontic force data, and determine whether an accessory is necessary based on whether the checker orthodontic force corresponds to the crown orthodontic force.

[0025] In one embodiment, the processor may determine that the accessory is unnecessary when the checker orthodontic force can be replaced by the crown orthodontic force, and determine that the accessory is necessary when the checker orthodontic force cannot be replaced by the crown orthodontic force.

[0026] In one embodiment, the processor may determine whether an attachment is necessary based on whether or not there is an orthodontic force corresponding to an edge adjacent region of the checker having an angular shape.

[0027] According to a third aspect of the present disclosure, there is provided a computer-readable recording medium having recorded thereon a program which, when executed by a computer, causes the computer to execute the method according to the first aspect.

[0028] Additional specific details are included in the detailed description and accompanying drawings.

[0029] Effects of the Invention

[0030] According to one embodiment, attachment-related information required for orthodontic treatment using clear aligners may be automatically provided by utilizing an orthodontic force obtained by comparing an orthodontic anterior tooth model and an orthodontic posterior tooth model.

[0031] Additionally, since the determination of whether to use attachments during clear aligner treatment is provided by a system calculation based on orthodontic forces, the accuracy of treatment planning can be improved.

[0032] Furthermore, by providing the basis for whether an attachment is necessary and the orthodontic results achieved using the attachment and allowing the user to review this information, the user may more easily make a decision regarding the necessity of the attachment.

[0033] Additionally, the indications for orthodontic treatment using clear aligners may be improved.

[0034] Additionally, minimizing the user's reliance on determining whether to use accessories during clear aligner treatment may reduce the time required for treatment planning.

[0035] It should be understood that the effects of the present disclosure are not limited to the above-mentioned effects, and include all effects that can be inferred from the configuration of the present invention described in the detailed description or claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1is a schematic diagram showing an example configuration of a device according to one embodiment.

[0037] Figure 2 is a flow chart showing each step performed by a device to display attachment-related information according to one embodiment.

[0038] Figure 3 An example of displaying an example model of an accessory according to one embodiment is schematically shown.

[0039] Figure 4 An example of determining whether an attachment is required for orthodontic treatment based on orthodontic forces applied to the checker and the crown in each direction according to one embodiment is schematically illustrated.

[0040] Figures 5 to 12 An example of determining whether an attachment is necessary based on orthodontic forces applied to the checker and the crown in each direction according to one embodiment is schematically illustrated. DETAILED DESCRIPTION

[0041] Considering the functions related to the inventive concept, the terms used in the embodiments are those general terms currently widely used in the art, but these terms may vary according to the intention of a person of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the inventive concept. Therefore, the terms used in the specification should not be understood as simple names, but rather as an overall description based on the meaning of the terms and the inventive concept.

[0042] Throughout the specification, it will also be understood that when a component "includes" or "contains" 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 it can be implemented in the form of hardware, software, or a combination of hardware and software.

[0043] Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings so that those skilled in the art can easily practice the embodiments of the present disclosure. However, the present disclosure may be implemented in many different forms and is not limited to the embodiments described herein.

[0044] The present disclosure provides various embodiments for obtaining pre-treatment orthodontic force and post-treatment orthodontic force in orthodontic treatment using clear aligners and for providing accessory-related information including necessity of accessories during orthodontic treatment using clear aligners based on the obtained orthodontic force.

[0045] Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0046] Figure 1 is a schematic diagram showing an example configuration of the device 100 according to one embodiment.

[0047] Reference Figure 1 , the device 100 may include a receiving part 110 , a processor 120 and an output part 130 .

[0048] The receiving part 110 according to one embodiment can acquire a pre-orthodontic tooth model representing a pre-orthodontic state of a tooth model to which a virtual checker as an attachment-type device is attached, and a post-orthodontic tooth model representing a post-orthodontic state of the tooth model to evaluate orthodontic force. The checker is an object attached to the tooth model to determine the magnitude and direction of the orthodontic force applied to the crown of the tooth model during orthodontic treatment using clear aligners.

[0049] In one embodiment, the receiving part 110 can acquire an orthodontic pre-tooth model without a virtual checker attached, and a tooth model representing a post-orthodontic state. Based on the acquired orthodontic pre-tooth model and post-orthodontic tooth model, the receiving part 110 can also determine whether the teeth have moved, and the distance and direction of the movement. Alternatively, the processor 120 can compare the orthodontic pre-tooth model and the orthodontic post-tooth model to quantify the difference and classify the size of the quantified difference information. Here, the quantified difference information can be converted into a specified color and displayed on the orthodontic pre-tooth model.

[0050] Then, the processor 120 may obtain a tooth model from which the quantified difference information is acquired and from which the virtual checker is selectively attached to the tooth, and may apply the orthodontic force obtained according to the following embodiment to the virtual checker. Figures 2 to 12 The above-mentioned embodiments are described.

[0051] The receiving part 110 may receive information provided by the external device 100. For example, the receiving part 110 may include a wired or wireless communication device capable of receiving various types of information by connecting to the external device 100 or an external component (not shown) via a network or a signal processing module.

[0052] In one embodiment, the checker may have an angular shape. For example, the checker may have a rectangular shape including the first edge adjacent area to the fourth edge adjacent area. In addition, the checker may be displayed on the tooth model in the form of being attached to the labial surface or buccal surface of the crown and aligned with the tooth axis of the crown.

[0053] In one embodiment, the tooth model may include modeling data of the teeth of a patient undergoing orthodontic treatment using transparent aligners. In addition, the pre-orthodontic tooth model may represent the state of the teeth before starting orthodontic treatment with transparent aligners, and the post-orthodontic tooth model may represent the expected state of the teeth once the desired tooth movement is completed by orthodontic treatment using transparent aligners. In addition, the tooth model may include not only the pre-orthodontic tooth model and the post-orthodontic tooth model of the entire orthodontic treatment using transparent aligners, but also the pre-orthodontic tooth model and the post-orthodontic tooth model of any specific stage of the orthodontic treatment, and may be displayed by the device 100.

[0054] In addition, due to tooth movement caused by orthodontic treatment, the pre-orthodontic tooth model and the post-orthodontic tooth model may show different crown positions.

[0055] According to one embodiment, the processor 120 may acquire orthodontic force data indicating the orthodontic force required for orthodontic treatment based on a comparison result between the pre-orthodontic tooth model and the post-orthodontic tooth model.

[0056] For example, orthodontic force data can be obtained based on a comparison of the extent to which the crown moves between the pre-orthodontic tooth model and the post-orthodontic tooth model. In addition, the orthodontic force data can include crown orthodontic force data representing the orthodontic force acting on the crown included in the tooth model with the checker, and checker orthodontic force data representing the orthodontic force acting on the checker.

[0057] In one embodiment, the processor 120 may acquire accessory-related information including information on whether an accessory is required for orthodontic treatment using both the checker orthodontic force data and the crown orthodontic force data obtained from the orthodontic force data and representing the orthodontic force corresponding to the checker.

[0058] For example, the processor 120 may determine whether an attachment is necessary based on whether the checker orthodontic force obtained from the checker orthodontic force data corresponds to the crown orthodontic force data included in the orthodontic force data.

[0059] Specifically, if the checker orthodontic force can be replaced by the crown orthodontic force, the processor 120 can determine that the attachment is unnecessary, and if the checker orthodontic force cannot be replaced by the crown orthodontic force, the processor 120 can determine that the attachment is necessary.

[0060] In one embodiment, the processor 120 may determine whether an attachment is necessary based on whether orthodontic forces corresponding to the marginal adjacent area of ​​the checker exist. Figure 6 For example, when viewed from a buccal perspective, the edge adjacent regions of the inspector may include a distal region 610 , a mesial region 620 , a cervical region 630 , and an occlusal region 640 .

[0061] In one embodiment, the output portion 130 may display information related to the attachment.

[0062] Will refer to Figures 2 to 12 The above-mentioned embodiment will be described in further detail.

[0063] In addition, the processor 120 can perform a series of operations to obtain accessory related information, and in addition to being electrically connected to the receiving part 110 and the output part 130, it can also be electrically connected to other components not shown to control the data flow among them. To this end, the processor 120 can be implemented as a central processing unit (CPU) that controls the overall operation of the device 100.

[0064] In addition, those skilled in the art should understand that, in addition to Figure 1 In addition to the components shown, other common components may also be included in the device 100. According to one embodiment, the device 100 may also include a user interface portion for receiving user input, and a storage portion configured to store data described throughout this specification.

[0065] Figure 2 is a flow chart showing each step performed by device 100 to display attachment-related information according to one embodiment.

[0066] According to one embodiment, accessories may be used during orthodontic treatment to increase the orthodontic force applied to the teeth. In addition, accessory-related information may broadly refer to information associated with accessories. For example, accessory-related information may indicate whether an accessory is required for orthodontic treatment. In one example, in a case where the orthodontic force required for orthodontic treatment is less than a preset value, an accessory may not be necessary; however, in a case where the orthodontic force exceeds a preset value, an accessory may be required.

[0067] Reference Figure 2 In steps S210 and S220, the device 100 may acquire a pre-orthodontic tooth model representing a pre-orthodontic state of the tooth model with the virtual checker attached, and a post-orthodontic tooth model representing a post-orthodontic state of the tooth model with the virtual checker attached.

[0068] Reference Figure 3 , an orthodontic anterior tooth model 301 and an orthodontic posterior tooth model 302 may be displayed in the form of a virtual checker 310 attached thereto, as shown. An orthodontic posterior tooth model 302 indicating a crown 320 and movement of the checker 310 from their pre-orthodontic positions as a result of orthodontic treatment may also be displayed as shown.

[0069] Specifically, the crown 320 and the checker 310 displayed on the post-orthodontic tooth model 302 may be displayed as having moved from their positions on the pre-orthodontic tooth model 301 by a distance corresponding to the movement of the crown 320 and the checker 310 during orthodontic treatment. In another embodiment, the checker 310 displayed on the post-orthodontic tooth model 302 may be displayed as having moved by a distance corresponding to the movement of the crown 320 during orthodontic treatment.

[0070] In yet another embodiment, the orthodontic pre-tooth model 301 and the orthodontic post-tooth model 302 may represent the states of the tooth model before and after orthodontic treatment without the checker 310 attached. In this case, the checker 310 displayed on the orthodontic pre-tooth model 301 may be displayed on the crown 320 in a manner corresponding to the position of the crown 320 and the tooth axis. The orthodontic post-tooth model 302 may be displayed as the checker 310 moves to a position corresponding to the movement distance of the crown 320 during the orthodontic treatment.

[0071] In another embodiment, the device 100 can generate and / or place an inspector 310 on each of the orthodontic anterior tooth model 301 and the orthodontic posterior tooth model 302. The inspector 310 can be arranged on a crown shape parallel to the tooth axis of each crown, and can be specifically placed so that the direction of the inspector is aligned with the direction of the crown. Here, the direction of the crown can be distinguished or determined as a buccal, distal, mesial, cervical or occlusal direction, and the direction of the inspector 310 can be determined from the stage of generating or placing the inspector 310. In addition, the position of the inspector 310 can be placed at the same position on both the orthodontic anterior tooth model 301 and the orthodontic posterior tooth model 302.

[0072] Figure 3 The orthodontic anterior tooth model 301 and the orthodontic posterior tooth model 302 shown only show some crowns 320 and the checker 310. However, this is for the purpose of providing a more detailed description of the embodiment and is not necessarily limited to the drawings. Figure 3 The described embodiment can also be applied to the case where the entire crown 320 and the inspector 310 are shown.

[0073] In step S230 , the apparatus 100 may acquire orthodontic force data 304 representing the orthodontic force required for orthodontic treatment based on a comparison between the orthodontic anterior teeth model 301 and the orthodontic posterior teeth model 302 .

[0074] In one embodiment, the orthodontic force may refer to the thrust required to move the crown 320 to a desired position.

[0075] In one embodiment, if Figure 3As shown, the comparison result of the orthodontic anterior teeth model 301 and the orthodontic posterior teeth model 302 can be obtained based on the degree of separation of each crown 320 and the checker 310 appearing on the matching model 303, and the matching model 303 is generated by matching the orthodontic anterior teeth model 301 and the orthodontic posterior teeth model 302 based on a preset reference point. The device 100 can determine the area corresponding to the orthodontic force and the magnitude of the orthodontic force based on the comparison result. According to one embodiment, the area corresponding to the orthodontic force can represent the area where the orthodontic force is applied. For example, the area where the orthodontic force is applied at a preset ratio or higher than the preset ratio can correspond to the area of ​​the orthodontic force.

[0076] For example, the device 100 may display the area corresponding to the orthodontic force and the movement distance between the orthodontic anterior tooth model 301 and the orthodontic posterior tooth model 302 using a color map based on the degree of separation of each crown 320 and the checker 310 on the orthodontic posterior tooth model 302 appearing on the matching model 303. The device 100 may acquire the orthodontic force data 304 including data related to the distribution and movement distance of the orthodontic force based on the color, distribution, and area of ​​the color map displayed on the crown 320 and the checker 310. The color, distribution, and area of ​​the color map may be determined based on a preset unit (e.g., pixel).

[0077] In one embodiment, when the color map represents information about the moving distance, different colors can be displayed for different moving distances. For example, if the moving distance falls within a preset first range (e.g., 0 mm to less than 0.1 mm), the color of the area corresponding to the moving distance can be displayed as a first color (e.g., yellow). If the moving distance falls within a preset second range (e.g., greater than 0.1 mm to less than 0.2 mm), the color of the area corresponding to the moving distance can be displayed as a second color (e.g., orange). If the moving distance falls within a preset third range (e.g., greater than 0.2 mm to less than N mm), the color of the area corresponding to the moving distance can be displayed as a third color (e.g., red).

[0078] In another embodiment, the color on the color map may be determined based on the magnitude of the orthodontic force.

[0079] Specifically, the area corresponding to the orthodontic force can be determined as an area and distribution corresponding to the color map, and the intensity or brightness of the color on the color map can represent the magnitude of the orthodontic force. For example, if the color map is distributed on a first area of ​​the first crown 340 and the intensity of the color in the first area indicates a first level, the device 100 can determine the area corresponding to the orthodontic force based on the first area, and determine the magnitude of the orthodontic force based on the first level.

[0080] In one embodiment, the device 100 can obtain data on the size of the orthodontic force and data on the distribution of the orthodontic force based on the area corresponding to the orthodontic force and the size of the orthodontic force. In addition, the data on the size of the orthodontic force and the data on the distribution of the orthodontic force can be included in the orthodontic force data 304.

[0081] In step S240 , the apparatus 100 may acquire accessory-related information including information on whether orthodontic treatment requires an accessory based on the checker orthodontic force data. The checker orthodontic force data may be obtained from the orthodontic force data 304 and may represent an orthodontic force corresponding to the checker 310 .

[0082] Specifically, the device 100 can obtain the attachment related information based on the crown orthodontic force data representing the orthodontic force. The orthodontic force can be obtained from the checker orthodontic force data and the orthodontic force data 304. In addition, the orthodontic force can correspond to the crown 320.

[0083] For example, refer to Figure 3 The checker orthodontic force data can be obtained based on the data on the magnitude of the orthodontic force and the data on the distribution of the orthodontic force acquired from the checker 310 and included in the orthodontic force data 304. The crown orthodontic force data can be obtained based on the data on the magnitude of the orthodontic force and the data on the distribution of the orthodontic force included in the orthodontic force data 304.

[0084] In addition, the apparatus 100 may determine the checker orthodontic force as the orthodontic force corresponding to the checker 310 based on the checker orthodontic force data, and determine the crown orthodontic force as the orthodontic force corresponding to the crown 320 based on the crown orthodontic force data. The apparatus 100 may determine whether an attachment is necessary based on whether the checker orthodontic force exists or whether the checker orthodontic force corresponds to the crown orthodontic force.

[0085] For example, when the checker orthodontic force can be replaced by the crown orthodontic force, a situation in which the checker orthodontic force corresponds to the crown orthodontic force can occur. For example, when the orthodontic force corresponding to the labial or buccal surface of the checker 310 corresponds to the crown orthodontic force, a situation in which the checker orthodontic force can be replaced by the crown orthodontic force can occur. If the checker orthodontic force can be replaced by the crown orthodontic force, it can be interpreted that normal tooth movement can be achieved using only the crown orthodontic force without the checker orthodontic force. In this case, the device 100 can determine that the attachment is unnecessary.

[0086] However, if the checker orthodontic force cannot be replaced by the crown orthodontic force, it can be interpreted that the desired tooth movement cannot be achieved with only the orthodontic force applied to the crown. In this case, the device 100 can determine that an accessory is necessary. For example, when the orthodontic force corresponding to the edge adjacent area of ​​the checker 310 is not applied to the crown 320 and therefore cannot be replaced by the crown orthodontic force, a situation where the checker orthodontic force cannot be replaced by the crown orthodontic force can occur. According to one embodiment, the orthodontic force can be generated from the pressure between the orthodontic device and the crown 320, and the orthodontic device can apply the orthodontic force to the crown 320.

[0087] Specifically, if there is an orthodontic force corresponding to the edge adjacent area of ​​the checker 310, or if the orthodontic force is greater than or equal to a preset level, the device 100 can determine that an attachment is necessary. In addition, if there is an orthodontic force corresponding to the checker 310 but no crown orthodontic force, the device 100 can determine that an attachment is necessary.

[0088] In contrast, when there is no orthodontic force corresponding to the edge-adjacent area of ​​the checker 310 or the orthodontic force is below a preset level, when there is no orthodontic force corresponding to the edge-adjacent portion of the checker 310 or the orthodontic force is below a preset level and the crown orthodontic force is at or above a preset level, when the orthodontic force exists only on the surface of the non-edge-adjacent area of ​​the checker 310 (for example, the labial or buccal surface of the checker 310), or when the orthodontic force exists only on the surface of the non-edge-adjacent area of ​​the checker 310 and the crown orthodontic force is at or above a preset level, the device 100 can determine that the attachment is unnecessary.

[0089] The following will refer to Figures 5 to 12 A detailed description of relevant implementations is provided.

[0090] In step S250, the device 100 may display information related to the attachment.

[0091] The attachment related information may include information indicating whether the attachment is necessary and information indicating a basis for the necessity of the attachment, and may be in the form of Figure 3 The attached example model 305 is shown in the form and as Figure 4 , Figure 6 , Figure 8 , Fig.10 and Fig.12 The table (or text) shown is displayed.

[0092] For example, the device 100 may first define the properties of the attachment based on the attachment related information, and acquire the checker orthodontic force data that can be presented based on the orthodontic force data. The properties of the attachment may include the orthodontic force acting on the checker 310, the direction of the attachment during attachment to the checker 310, whether the size is adjusted during attachment to the checker 310, and whether the direction is changed.

[0093] Second, the device 100 can visualize the degree of difference before and after tooth movement due to orthodontic treatment (tooth crown) by converting digital information about the difference in movement distance and displaying it on the tooth model before movement. In addition, the embodiment described in the present disclosure is characterized in that, based on the principle that a removable orthodontic device applies a thrust to a tooth, the distance difference after the tooth movement is used as a thrust to achieve tooth movement. Figure 3 A detailed description of an embodiment of visualizing the degree of difference between before and after tooth movement is provided by using the orthodontic force data 304 in FIG.

[0094] Third, since the device 100 needs to detect the teeth and the area thereof where the orthodontic force required to provide the thrust for tooth movement is not applied, it is characterized by using an additional checker on the teeth (for example, for orthodontic force evaluation). The device 100 can check the orthodontic force reflected on the additional checker and the orthodontic force acting on the corresponding teeth to ultimately determine the necessity of the attachment.

[0095] Fourth, the device 100 can suggest specific attachments when necessary. For example, to ensure that the planned removable orthodontic treatment is properly manifested in the oral cavity while maintaining the advantages of a convenient treatment process, the device 100 can present predefined attachments limited to the teeth that need to strengthen the orthodontic force, and place the attachments at the locations on the respective teeth.

[0096] In this way, the orthodontic forces obtained by comparing the orthodontic pre-tooth model with the orthodontic post-tooth model can be used to automatically provide information about the attachments required for orthodontic treatment using clear aligners. In addition, by providing information about whether an attachment is necessary and the basis for the decision and allowing the user to view it, it is easier to make a determination about whether an attachment is necessary.

[0097] Figure 3 An example of a display of an example model 305 of an attachment according to one embodiment is schematically shown. According to one embodiment, the attachment 330 may be attached to a crown or the like to increase orthodontic forces applied to the crown or the like.

[0098] Reference Figure 3 The device 100 can obtain an orthodontic anterior tooth model 301 and an orthodontic posterior tooth model 302, and obtain a matching model 303 by matching the orthodontic anterior tooth model 301 and the orthodontic posterior tooth model 302 based on a preset reference point.

[0099] Subsequently, the device 100 can obtain a comparison result of the orthodontic anterior tooth model 301 and the orthodontic posterior tooth model 302 from the matching model 303 based on the movement degree of the crown 320 and the checker 310 before and after orthodontic treatment. Based on the obtained comparison result, the device 100 can obtain the crown orthodontic force and the checker orthodontic force.

[0100] The device 100 may acquire the accessory related information based on the acquired crown orthodontic force and checker orthodontic force, and based on this, the device 100 may acquire and display the accessory example model 305 .

[0101] For example, if the accessory-related information determines that the accessory 330 is necessary for the first crown 340, determines that there is an examiner orthodontic force in a predefined direction corresponding to the first crown 340 or the examiner orthodontic force is at or above a preset level, and determines that there is no crown orthodontic force in the predefined direction corresponding to the first crown 340 or the crown orthodontic force is below a preset level, the device 100 can obtain an accessory example model 305 in which an accessory corresponding to the position and number of the examiner orthodontic force is attached to the first crown 340, and the device 100 can display the accessory example model 305.

[0102] Figure 4 An example of determining whether an attachment is required for orthodontic treatment based on orthodontic forces applied to the checker 310 and the crown 320 in each direction according to one embodiment is schematically illustrated.

[0103] Reference Figure 4 , the device 100 can determine the accessory-related information including whether the accessory is necessary and the basis of the necessity based on whether or not an orthodontic force is applied to the checker 310 and the crown 320 in preset directions such as the distal, mesial, cervical, and occlusal directions and the magnitude of the orthodontic force. The device 100 can display the information in the form of a table or text.

[0104] For example, the device 100 can determine the orthodontic force applied to the checker 310 and the crown 320 in the distal direction and the mesial direction, and the orthodontic force applied to the checker 310 and the crown 320 in the cervical direction and the occlusal direction, and provide accessory-related information based on whether the orthodontic force is applied to the checker 310 and the crown 320 in each direction and the magnitude of the orthodontic force.

[0105] The following will refer to Figures 5 to 12 A detailed implementation method related to this will be described.

[0106] Figures 5 to 12 An example of determining whether an attachment is necessary based on the orthodontic force applied to the checker 310 and the crown 320 in each direction according to one embodiment is schematically illustrated.

[0107] Specifically, Figure 5 , Figure 7 , Fig. 9 and Fig.11 The distribution and magnitude of the crown orthodontic force applied to the crown 320 in each direction (or the distance of movement caused by orthodontic treatment), and the curvature of the crown orthodontic force in each direction are shown.

[0108] In one embodiment, the curvature of the orthodontic force of the crown can be determined based on the uniformity of the distance between the orthodontic force distribution area and the tooth axis, and the orthodontic force distribution area is the area on the surface of the crown 320 where the orthodontic force is applied. For example, the curvature of the orthodontic force of the crown when the distance between the orthodontic force distribution area and the tooth axis is uniform can be greater than the curvature of the orthodontic force of the crown when the distance between the orthodontic force distribution area and the tooth axis is uneven. As the curvature of the orthodontic force of the crown increases, the orthodontic device is more likely to slide on the surface of the crown 320. Therefore, the necessity of the attachment can be determined based on the curvature of the orthodontic force of the crown. For example, if the curvature of the orthodontic force of the crown is greater than or equal to a preset value, it can be determined that the attachment is necessary.

[0109] in addition, Figure 6 , Figure 8 , Fig.10 and Fig.12 The inspection device 310 and accessory related information attached to the crown 320 are shown, except Figure 5 , Figure 7 , Fig. 9 and Fig.11 In addition to the information shown, the accessory-related information also includes the distribution of the checker orthodontic force on the checker 310, the magnitude of the checker orthodontic force (or the movement distance caused by orthodontic treatment), information indicating the basis for whether the accessory is necessary, and information indicating whether the accessory is required.

[0110] In addition, if Figure 6 , Figure 8 , Fig.10 and Fig.12 As shown, information indicating whether a basis for an attachment is necessary may be displayed on the attachment. Figure 1 in the table on the side.

[0111] Specifically, in the case where a checker orthodontic force greater than or equal to a preset reference value appears in an area on the checker 310 corresponding to at least one direction of the checker 310, the possibility that an accessory may be necessary can be indicated by an "O" in the table. Conversely, if a checker orthodontic force lower than the reference value appears, the possibility that an accessory may be unnecessary can be indicated by an "X". For example, when a checker orthodontic force greater than or equal to the reference value appears, orthodontic treatment using an accessory is possible, and therefore whether an accessory is needed may depend on the crown orthodontic force. However, if the checker orthodontic force is lower than the reference value, orthodontic treatment using an accessory is not possible, and therefore the accessory may be deemed unnecessary.

[0112] Additionally, the graph may indicate with an "X" that an attachment is unnecessary in the following situations: the crown orthodontic force occurs in the same direction as the direction in which the checker orthodontic force occurs, the crown orthodontic force is distributed across the entire area of ​​the crown 320 in this direction, and is not affected by adjacent teeth or gums. For example, if the crown orthodontic force is distributed across the entire area of ​​the crown 320, the curvature of the crown orthodontic force is low, which means that the orthodontic device is less likely to slip due to the curvature, allowing normal orthodontic treatment without the need for an attachment, and therefore the attachment may be unnecessary.

[0113] In addition, in the case where the crown orthodontic force appears in the same direction as the direction in which the checker orthodontic force appears, the crown orthodontic force is distributed only on a partial area of ​​the crown 320 in this direction, the curvature of the crown orthodontic force is small (for example, when the distance between the outer edge of the crown orthodontic force area and the tooth axis is uneven), and the crown orthodontic force is not affected by adjacent teeth, the determination of whether the attachment is necessary may not apply, which can be indicated by "-" in the table. For example, when the crown orthodontic force is distributed only on a partial area of ​​the crown 320, the crown orthodontic force may be weak, or may not be applied to the position required for orthodontic treatment, in which case the attachment may be necessary. However, if the curvature of the crown orthodontic force is small, the orthodontic device may not move, allowing the crown orthodontic force to be properly applied to the crown 320, and the attachment may not be necessary. Therefore, in this case, the determination of whether the attachment is necessary can be excluded, and the necessity of the attachment can be determined based on the determination of the necessity of the attachment according to the checker orthodontic force and the crown orthodontic force from other perspectives.

[0114] Additionally, in other situations (e.g., when no crown orthodontic forces are present, or when crown orthodontic forces are not transmitted due to interference from adjacent teeth or gums), an "O" may be used to indicate the need for an attachment.

[0115] In the following description, reference will be made to the above description to explain Figures 5 to 12 .

[0116] Figure 53 is a diagram showing that an orthodontic force is required in the direction of the arrow shown from the buccal perspective according to the crown orthodontic force applied in each direction of the crown 320. From the buccal perspective, the orthodontic force may represent a counterclockwise rotational force.

[0117] Figure 6 is based on Figure 5 The figure shown in FIG. 1 also shows a diagram of the checker 310 and the orthodontic force of the checker. Figure 6 , showing that the counterclockwise rotational orthodontic force on the crown 320 is applied to correspond to the checker orthodontic force applied to the edge adjacent area of ​​the checker 310 (the left edge adjacent area and the bottom edge adjacent area of ​​the checker 310 from the buccal perspective). For reference, in Figure 6 , the edge adjacent regions of the checker 310 may represent a distal region 610, a mesial region 620, a cervical region 630, and an occlusal region 640, respectively.

[0118] Referring to the table for explanation, since the checker orthodontic force in the distal direction among the distal and mesial directions is at or above the preset level, the device 100 can indicate this with "O" in the corresponding cell of the table. In addition, since the checker orthodontic force in the occlusal direction among the cervical direction and the occlusal direction is at or above the preset level, the device 100 can indicate this with "O" in the corresponding cell of the table.

[0119] In addition, the orthodontic force of the crown in the distal direction among the distal and mesial directions is not applied to the crown 320 due to interference from adjacent teeth, while the orthodontic force of the crown in the mesial direction is only applied to a partial area and exhibits a high curvature. Therefore, the device 100 can indicate this with "O" in the corresponding unit of the table. In addition, the orthodontic force of the crown in the cervical direction among the cervical direction and the occlusal direction is not applied to the crown due to interference from the gums, while the orthodontic force of the crown in the occlusal direction exhibits a high curvature. Therefore, the device 100 can indicate this with "O" in the corresponding unit of the table.

[0120] Results, based on Figure 5 and Figure 6 The device 100 can determine the orthodontic force of the crown and the orthodontic force of the checker as shown. Figure 5 and Figure 6 The crown 320 shown is necessary, and information indicating that attachments are required, as well as a form, may be provided.

[0121] Figure 7 and Figure 8 3 is a diagram showing an example in which accessories are necessary for the dental crown 320 shown in the figure.

[0122] Reference Figure 7 and Figure 8 , the checker orthodontic force in the distal direction and the mesial direction is at or above the preset level. Therefore, the device 100 can indicate this with "O" in the corresponding cell of the table. In addition, since the checker orthodontic force in the cervical direction and the occlusal direction is lower than the preset level, the device 100 can indicate this with "X" in the corresponding cell of the table.

[0123] In addition, the orthodontic force of the crown in the distal direction among the distal direction and the mesial direction is lower than the preset level and is not applied to the crown 320 due to interference from the adjacent teeth, while the orthodontic force of the crown in the mesial direction is also lower than the preset level. Therefore, the device 100 can indicate this with "O" in the corresponding unit of the table. In addition, the orthodontic force of the crown in the cervical direction among the cervical direction and the occlusal direction is not applied to the crown 320 due to interference from the gums, while the orthodontic force of the crown in the occlusal direction is distributed only in a part of the area of ​​the crown. Therefore, the device 100 can indicate this with "-" in the corresponding unit of the table.

[0124] As a result, the device 100 can determine that an accessory is necessary for the dental crown 320 based on the information displayed in the table, which provides a basis for the necessity of the accessory.

[0125] Fig. 9 and Fig.10 3 is a diagram showing an example in which accessories are unnecessary for the dental crown 320 shown in the figure.

[0126] Reference Fig. 9 and Fig.10 , the checker orthodontic force in the distal direction and the mesial direction is lower than the preset level. Therefore, the device 100 can indicate this with "X" in the corresponding cell of the table. In addition, since the checker orthodontic force in the occlusal direction among the cervical direction and the occlusal direction is at or above the preset level, the device 100 can indicate this with "O" in the corresponding cell of the table.

[0127] Furthermore, the crown orthodontic force in the distal direction among the distal and mesial directions is applied to only a portion of the crown 320 at a level lower than a preset level, and due to interference from adjacent teeth, most of the crown orthodontic force is not applied to the crown 320. Similarly, the crown orthodontic force in the mesial direction is also applied to only a portion of the crown 320 at a level lower than a preset level. Therefore, the apparatus 100 may indicate this with "-" in the corresponding cell of the table.

[0128] In addition, the crown orthodontic force in the cervical direction among the cervical direction and the occlusal direction is not applied to the crown 320 due to interference from the gums, while the crown orthodontic force in the occlusal direction is applied such that it is distributed across the entire area of ​​the crown 320. Therefore, the apparatus 100 may indicate this with an "X" in the corresponding cell of the table.

[0129] As a result, the apparatus 100 may determine that the attachment is not necessary for the dental crown 320 based on the information displayed in the table, which provides a basis for the necessity of the attachment.

[0130] Fig.11 and Fig.12 3 is a diagram showing an example in which accessories are unnecessary for the dental crown 320 shown in the figure.

[0131] Reference Fig.11 and Fig.12 , since the checker orthodontic force in the distal direction among the distal and mesial directions is at or above the preset level, the device 100 can indicate this with "O" in the corresponding cell of the table. In addition, since the checker orthodontic force in the cervical direction and the occlusal direction is lower than the preset level, the device 100 can indicate this with "X" in the corresponding cell of the table.

[0132] In addition, the crown orthodontic force in the distal direction among the distal direction and the mesial direction is applied to the entire area of ​​the crown 320 at a preset level or higher than the preset level, and because the area to which the crown orthodontic force is applied is relatively large, the influence from the adjacent teeth is considered to be minimal. Therefore, the device 100 can indicate this with an "X" in the corresponding cell of the table. In addition, the crown orthodontic force in the cervical direction among the cervical direction and the occlusal direction is not applied to the crown 320 due to interference from the gums, while the crown orthodontic force in the occlusal direction is applied to only a portion of the crown 320. Therefore, the device 100 can indicate this with a "-" in the corresponding cell of the table.

[0133] Furthermore, since the checker orthodontic force applied in the buccal direction also exists at a certain level, the dental crown 320 may not require attachments.

[0134] As a result, the apparatus 100 may determine that the attachment is not necessary for the dental crown 320 based on the information displayed in the table, which provides a basis for the necessity of the attachment.

[0135] In this way, the device 100 can determine basic information for the necessity of an accessory based on the orthodontic force applied to the checker 310 and the crown 320 in each direction, and determine and provide whether an accessory is necessary based on the basic information. By allowing the user to view the provided information, it is easier to make a determination whether an accessory is necessary.

[0136] 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 each component described in this specification, the order, combination, branching, function and execution subject can be changed so as to be implemented with additional, fewer or different steps. Throughout this specification, the term "provide" or "providing" can 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.

[0137] The various embodiments described herein can be implemented as software, and the software includes one or more instructions stored in a storage medium (e.g., a memory) that can be read by a machine (e.g., a display device or a computer). For example, a processor of a machine (e.g., processor 120) can call at least one instruction of one or more instructions stored in a storage medium and execute the instruction. This allows the machine to operate according to at least one instruction called to perform at least one function. 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 (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.

[0138] According to an embodiment, the method according to various embodiments of the present disclosure may be included and provided in a computer program product. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., a compact disc read-only memory (CD-ROM)), or via an application store (e.g., Play Store TM ) online distribution (e.g., downloading or uploading), or directly between two user devices (e.g., smart phones). If distributed online, at least a portion of the computer program product may be temporarily generated or at least temporarily stored in a machine-readable storage medium, such as a manufacturer's server, an application store's server, or a memory of a relay server.

[0139] It will be appreciated by those skilled in the art that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the exemplary embodiments defined by the appended claims. Therefore, the disclosed method should be considered in a descriptive sense only and not for the purpose of limitation. The scope of the present disclosure is not presented in the foregoing description, but in the claims, and all differences within their equivalent ranges should be interpreted as included in the present disclosure.

Claims

1. A method performed by a device for providing information for an orthodontic attachment, the method comprising the steps of: acquiring a pre-orthodontic tooth model indicating a pre-orthodontic state of the tooth model to which the virtual checker is attached; acquiring a post-orthodontic tooth model indicating a post-orthodontic state of the tooth model; Acquiring orthodontic force data based on a comparison result between the pre-orthodontic tooth model and the post-orthodontic tooth model; acquiring accessory-related information including information on whether an accessory is required for orthodontic treatment based on the checker orthodontic force data obtained from the orthodontic force data and indicating the orthodontic force corresponding to the checker; as well as The attachment-related information is displayed at the output portion.

2. The method according to claim 1, wherein: The step of obtaining the information related to the accessory includes determining whether the accessory is necessary based on whether or not an orthodontic force corresponding to the checker exists.

3. The method according to claim 1, wherein: The step of obtaining the attachment-related information comprises the following steps: Acquiring crown orthodontic force data from the orthodontic force data, wherein the crown orthodontic force data represents an orthodontic force corresponding to the crown of the tooth model including the crown and the checker; and The attachment related information is acquired using both the checker orthodontic force data and the crown orthodontic force data.

4. The method according to claim 3, wherein: The step of using both the checker orthodontic force data and the crown orthodontic force data to obtain the attachment related information comprises the following steps: Determine a checker orthodontic force based on the checker orthodontic force data, wherein the checker orthodontic force is an orthodontic force corresponding to the checker; determining a crown orthodontic force based on the crown orthodontic force data, wherein the crown orthodontic force is an orthodontic force corresponding to the crown; and Whether the attachment is necessary is determined based on whether the checker orthodontic force corresponds to the crown orthodontic force.

5. The method according to claim 4, wherein: The step of determining whether the accessory is necessary based on whether the checker orthodontic force corresponds to the crown orthodontic force includes: when the checker orthodontic force can be replaced by the crown orthodontic force, determining that the accessory is unnecessary; and when the checker orthodontic force cannot be replaced by the crown orthodontic force, determining that the accessory is necessary.

6. The method according to claim 1, wherein: The step of obtaining the attachment-related information comprises the following steps: determining a direction of the orthodontic force based on the magnitude and distribution of the orthodontic force corresponding to the checker; and The accessory related information is obtained based on the direction of the orthodontic force.

7. The method according to claim 1, wherein: The step of acquiring the information related to the attachment includes determining whether the attachment is necessary based on whether or not an orthodontic force corresponding to an edge adjacent region of the checker having an angular shape exists.

8. The method according to claim 1, wherein: The checker is attached to the buccal side or the labial side of the crown and has a rectangular shape including the first edge adjacent area to the fourth edge adjacent area, and The step of obtaining the attachment related information includes the following steps: Determining the direction of the orthodontic force as at least one of a distal direction, a mesial direction, a cervical direction, or an occlusal direction based on the region corresponding to the orthodontic force from the first edge adjacent region to the fourth edge adjacent region; and The accessory related information is obtained based on the direction of the orthodontic force.

9. The method according to claim 1, wherein: The step of acquiring the orthodontic force data includes determining the area corresponding to the orthodontic force and the magnitude of the orthodontic force based on the degree of separation between the orthodontic anterior tooth model and the orthodontic posterior tooth model when they are matched.

10. The method according to claim 1, wherein: The orthodontic force data includes data on the magnitude of the orthodontic force and data on the distribution of the orthodontic force.

11. An apparatus for providing information for an orthodontic attachment, comprising: a receiving section configured to acquire a pre-orthodontic tooth model indicating a pre-orthodontic state of the tooth model to which the virtual checker is attached, and a post-orthodontic tooth model indicating a post-orthodontic state of the tooth model; A processor configured to: obtaining orthodontic force data based on a comparison result between the orthodontic anterior tooth model and the orthodontic posterior tooth model, and acquiring accessory-related information including information on whether an accessory is required for orthodontic treatment based on the checker orthodontic force data obtained from the orthodontic force data and indicating the orthodontic force corresponding to the checker; as well as An output portion is configured to display the attachment related information.

12. The device according to claim 11, wherein The processor is configured to: acquiring crown orthodontic force data from the orthodontic force data, wherein the crown orthodontic force data represents an orthodontic force corresponding to the crown of the tooth model including the crown and the checker, and The attachment related information is acquired using both the checker orthodontic force data and the crown orthodontic force data.

13. The device according to claim 12, wherein: The processor is configured to: Determine the checker orthodontic force based on the checker orthodontic force data, wherein the checker orthodontic force is the orthodontic force corresponding to the checker, determining a crown orthodontic force based on the crown orthodontic force data, wherein the crown orthodontic force is an orthodontic force corresponding to the crown, and Whether the attachment is necessary is determined based on whether the checker orthodontic force corresponds to the crown orthodontic force.

14. The device according to claim 13, wherein: The processor is configured to: When the checker orthodontic force can be replaced by the crown orthodontic force, determining that the attachment is unnecessary, and When the checker orthodontic force cannot be replaced by the crown orthodontic force, it is determined that the attachment is necessary.

15. The apparatus according to claim 11, wherein: The processor is configured to determine whether the attachment is necessary based on whether an orthodontic force corresponding to an edge adjacent region of the checker having an angular shape exists. 16 . A computer-readable recording medium having recorded thereon a program which, when executed by a computer, causes the computer to execute the method according to claim 1 .

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