Method for generating edge cut lines for a correction device, a correction device, and a readable recording medium

Abstract

This application discloses a method for generating an orthodontic appliance edge cut line, an orthodontic appliance, and a computer-readable recording medium, which relate to the orthodontic technical field. The method includes the steps of: identifying a tooth contour of a tooth model corresponding to at least one first tooth and obtaining a first region corresponding to the tooth contour; identifying a second region corresponding to an attachment, the attachment being at least partially positioned on the orthodontic appliance corresponding to at least some of the teeth or interdental spaces of the at least one first tooth, the orthodontic appliance being associated with the tooth model; and, if the first region cannot completely cover the second region, generating an orthodontic appliance edge cut line based on the second region, the orthodontic appliance edge cut line being used to cut the orthodontic appliance. This configuration ensures sufficient space on the orthodontic appliance to attach the attachment, increasing the success rate of attaching the attachment to the orthodontic appliance and enabling the attachment to cooperate better with the orthodontic appliance to straighten the teeth.

Description

[Technical Field]

[0001] (Related Applications) This application claims priority to a Chinese patent application filed on December 29, 2023, with application number 202311871847.2 and titled "Method for generating edge cutting lines in a straightening device, a straightening device, and a readable recording medium," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of dental orthodontics, and in particular to a method for generating an edge cut line for an orthodontic device, an orthodontic device, and a readable recording medium. [Background technology]

[0003] Current orthodontic appliances are capable of encasing and maintaining dental crowns, but in the process of transparent orthodontics, various attachments must be designed to complement the appliance to achieve the desired results. When attaching an attachment to an orthodontic appliance, a certain area is required, which is generally the buccal, lingual, or occlusal surface. Most attachments are attached to the buccal and lingual surfaces, but in this case, the area available for attachment is usually limited to the area formed by the edge of the appliance and the incisal edge of the occlusal surface, which may prevent the desired treatment effect from being achieved. Summary of the Invention

[0004] The technical problem to be solved by this application is to improve the success rate of attaching attachments to an orthodontic appliance, and to provide a method for generating an edge cut line for an orthodontic appliance, an orthodontic appliance, and a computer-readable recording medium. The technical problem to be solved by this application is as follows.

[0005] The present application provides a method for generating an orthodontic device edge cut line, the method including: The method includes identifying a tooth contour of a tooth mold corresponding to at least one first tooth and obtaining a first region corresponding to the tooth contour; identifying a second region corresponding to an attachment, the attachment being at least partially positioned on an orthodontic appliance corresponding to at least some teeth or dental spaces of the at least one first tooth, the orthodontic appliance being associated with the tooth mold; and if the first region cannot completely cover the second region, generating an orthodontic appliance edge cut line based on the second region, the orthodontic appliance edge cut line being used to cut the orthodontic appliance.

[0006] In this method, the acquired first and second regions are compared, and the criteria for generating the orthodontic appliance edge cutting line are determined based on the comparison result, making the orthodontic appliance edge cutting more flexible and adaptable to various types of attachments. In addition, if the first region cannot completely cover the second region, the orthodontic appliance edge cutting line is generated directly based on the second region, ensuring sufficient space for attachments on the final cut-out orthodontic appliance, improving the success rate of attachments to the orthodontic appliance and allowing the attachments to work together with the orthodontic appliance to more effectively straighten the teeth.

[0007] In one possible implementation, the orthodontic device edge cut line is: At least a portion of the orthodontic device edge cut line is located below the first gum line. At least a part of the orthodontic device edge cut line intersects with the first gum line. At least a portion of the second region is located below the first gum line. At least a portion of the second region intersects the first gum line; and The first gum line satisfies at least one of the following: the gum line of at least one of the first teeth; and / or the gum line of at least a portion of at least one tooth adjacent to the at least one first tooth.

[0008] One possible implementation is: The method further includes adjusting a position of the attachment on the orthodontic appliance to a first position if an occlusal interference exists between the attachment and the antagonist of the first tooth.

[0009] In one possible implementation, before adjusting the position of the attachment on the orthodontic device to the first position, the attachment is in a second position on the orthodontic device, the second position being the position of the attachment when an occlusal interference exists between the attachment and the opposing tooth of the first tooth.

[0010] In one possible implementation, the priority of the first location is lower than or equal to the priority of the second location.

[0011] In one possible implementation, the priority of the location where the attachment is located is related to the functionality information of the attachment.

[0012] One possible implementation is: If an occlusal interference exists between the attachment and the opposing tooth of the first tooth, the method further includes adjusting the position of the attachment on the orthodontic device, the direction of the adjustment being toward the gingival margin.

[0013] One possible implementation further includes, before generating the orthodontic appliance edge cut line, ensuring that there is no occlusal interference between the attachment and the antagonist of the first tooth.

[0014] In one possible implementation, the corrector edge cut line is determined at a position a predetermined distance away from the position information of the second region.

[0015] In one possible implementation, the range of the predetermined distance is between 0.2 mm and 2 mm.

[0016] In one possible implementation, the orthodontic device edge cut line extends along a first direction of the first tooth and covers at least one tooth or tooth gap adjacent to at least one of the first teeth.

[0017] One possible implementation is: Displaying at least a portion of the dental impression; Further comprising displaying at least one of the orthodontic device edge cut line, the attachment, and the orthodontic device.

[0018] One possible implementation is: obtaining a first command from a user, the first command being used to indicate desired position information of the attachment or desired position information of an edge of the corrective device; When generating a corrective device edge cut line based on the second region, the method further includes generating a first cut line based on the first command and the second region.

[0019] One possible implementation is: The method further includes a step of adjusting the generated first cutline to a second cutline in accordance with a second command from a user, the second command being used to indicate adjustment information for the first cutline, and the second cutline being used to generate a target correction device.

[0020] In one possible implementation, the second instructions are: updating location information of the attachment; and a target position of the first cut line after adjustment; is used to indicate at least one of the following:

[0021] The present application further provides: obtaining a dental impression corresponding to at least one first tooth; identifying a second area corresponding to an attachment according to a first command from a user and the dental impression, the attachment being at least partially positioned on the orthodontic appliance corresponding to at least a portion of the teeth or dental gaps of at least one of the first teeth, the first command being used to indicate position information of the attachment; and generating a corrective device edge cut line based on the second region.

[0022] In one possible implementation, the orthodontic device edge cut line is: At least a portion of the orthodontic device edge cut line is located below the first gum line. At least a part of the orthodontic device edge cut line intersects with the first gum line. At least a portion of the second region is located below the first gum line. At least a portion of the second region intersects the first gum line. The first gum line meets at least one of the gum line of at least one of the first teeth and / or the gum line of at least a portion of at least one tooth adjacent to the at least one first tooth.

[0023] In one possible implementation, If an occlusal interference exists between the attachment and the antagonist of the first tooth, adjusting the position of the attachment on the orthodontic appliance to a first position.

[0024] In one possible implementation, before adjusting the position of the attachment on the orthodontic device to the first position, the attachment is in a second position on the orthodontic device, the second position being the position of the attachment when an occlusal interference exists between the attachment and the opposing tooth of the first tooth.

[0025] In one possible implementation, the priority of the first location is lower than or equal to the priority of the second location.

[0026] In one possible implementation, the priority of the location where the attachment is located is related to the functionality information of the attachment.

[0027] In one possible implementation, If an occlusal interference exists between the attachment and the opposing tooth of the first tooth, the method further includes adjusting the position of the attachment on the orthodontic device, the direction of the adjustment being toward the gingival margin.

[0028] In one possible implementation, before generating the orthodontic appliance edge cut line, the method further includes ensuring that no occlusal interference exists between the attachment and the antagonist of the first tooth.

[0029] In one possible implementation, the corrector edge cut line is determined at a position a predetermined distance away from the position information of the second region.

[0030] In one possible implementation, the range of the predetermined distance is between 0.2 mm and 2 mm.

[0031] In one possible implementation, the orthodontic device edge cut line extends along a first direction of the first tooth and covers at least one tooth or tooth gap adjacent to at least one of the first teeth.

[0032] In one possible implementation, Displaying at least a portion of the dental impression; Further comprising displaying at least one of the orthodontic device edge cut line, the attachment, and the orthodontic device.

[0033] In one possible implementation, the method further includes a step of adjusting the generated first cutline to a second cutline in response to a second command from a user, the second command being used to indicate adjustment information for the first cutline, and the second cutline being used to generate a target correction device.

[0034] In one possible implementation, the second instructions are: updating location information of the attachment; and and a target position of the first cut line after adjustment.

[0035] The present application further provides an orthodontic appliance for attachment to teeth, the orthodontic appliance including an orthodontic appliance body and an attachment, the attachment being disposed on the orthodontic appliance body; The edge of the correction device is determined based on any one of the above-mentioned methods for generating a correction device edge cut line.

[0036] The present application further provides a computer-readable recording medium storing instructions that, when executed by a processor, cause a computing device to perform a method, including any of the above-described methods for generating an orthodontic device edge cut line.

[0037] The present application provides an orthodontic appliance including an orthodontic appliance body and an attachment disposed on the orthodontic appliance body, the orthodontic appliance body including a second region to which the attachment is attached, the second region being located partially below a first gum line of the tooth and partially above the first gum line of the tooth when the orthodontic appliance is worn on the tooth.

[0038] In one possible implementation, when the orthodontic device is attached to the teeth, the attachment is connected to the bottom surface of the second region and is partially in a position corresponding to the region below the first gum line and partially in a position corresponding to the region above the first gum line.

[0039] In one possible implementation, when the orthodontic device is attached to the teeth, the second region is located at a position corresponding to the crown or tooth gap of at least one first tooth, and when the number of first teeth is one, the second region is located at a position corresponding to the crown and gums of the first tooth, and when the number of first teeth is multiple, the second region is located at a position corresponding to the crowns, gums, and tooth gaps of multiple first teeth.

[0040] In one possible implementation, when the orthodontic device is attached to the teeth, the attachment is at least partially positioned on the orthodontic device corresponding to at least a portion of the tooth or tooth gap of at least one first tooth, and when the number of the first teeth is one, the attachment is in a position corresponding to the crown and gums of the first tooth, and when the number of the first teeth is multiple, the attachment is in a position corresponding to the crowns, gums and tooth gaps of multiple first teeth.

[0041] In one possible implementation, the orthodontic appliance includes an orthodontic appliance edge cut line, the orthodontic appliance edge cut line being located below the first gum line only at the portion of the first tooth, and the orthodontic appliance edge cut line being approximately aligned with the first gum line at all other tooth portions.

[0042] In one possible implementation, the orthodontic appliance includes an orthodontic appliance edge cut line, the orthodontic appliance edge cut line being located below a first gum line at a portion of the first tooth and at a portion of another tooth adjacent to the first tooth.

[0043] In one possible implementation, the corrector includes a corrector edge cut line, and the range of the predetermined distance between the corrector edge cut line and the corresponding edge contour line of the second region is between 0.2 mm and 2 mm.

[0044] In one possible implementation, when the orthodontic device is worn on a tooth and occludes with an opposing tooth, the attachment and the opposing tooth are spaced apart.

[0045] In one possible implementation, the tooth includes a crown located above a first gum line and a gingiva located below the first gum line, the second region includes a first end corresponding to the crown and a second end corresponding to the gingiva, and when the orthodontic device is attached to the tooth, there is a first spacing between the first end and the crown and a second spacing between the second end and the gingiva, the first spacing being greater than the second spacing.

[0046] In one possible implementation, the second end is in close contact with the gums.

[0047] In one possible implementation, the orthodontic device body further includes a third region and a connection region connecting the third region and the second region, the third region being in close contact with the crown of the tooth, and the connection region forming a fold between the second region and the third region.

[0048] In one possible implementation, the second area is planar.

[0049] In one possible implementation, the angle between the plane of the second region and the jaw plane ranges from 60° to 90°.

[0050] In one possible implementation, the bottom surface of the attachment is connected to the second area, and the bottom surface covers a part or all of the area of ​​the second area.

[0051] In one possible implementation, the attachment is a towing hook, a towing hook, a tubular attachment or a slotted attachment.

[0052] The present application provides an orthodontic device, comprising an orthodontic device body and an attachment disposed on the orthodontic device body, wherein the orthodontic device body comprises a second region to which the attachment is attached, wherein when the orthodontic device is attached to a tooth, the second region is adjacent to a first gum line of the tooth or intersects with the first gum line, and the second region comprises a first end and a second end opposite each other in a direction perpendicular to the jaw plane, wherein a first distance exists between the first end and the tooth and a second distance exists between the second end and the tooth, and the first distance is greater than the second distance.

[0053] In one possible implementation, the second region is partially located below the first gum line of the tooth and partially located above the first gum line of the tooth, the second region is entirely located below the first gum line, or the second region is entirely located above the first gum line.

[0054] In one possible implementation, the tooth includes a crown located above a first gum line and a gum located below the first gum line, the first end corresponds to the crown, and the first gap is between the first end and the crown, and the second end corresponds to the gum, and the second gap is between the second end and the gum.

[0055] In one possible implementation, the second end is in close contact with the gums.

[0056] In one possible implementation, the orthodontic device body further includes a third region and a connection region connecting the third region and the second region, the third region being in close contact with the teeth and the connection region forming a fold between the second region and the third region.

[0057] In one possible implementation, the second area is planar.

[0058] In one possible implementation, the angle between the plane of the second region and the jaw plane ranges from 60° to 90°.

[0059] In one possible implementation, the bottom surface of the attachment is connected to the second area, and the bottom surface covers a part or all of the area of ​​the second area.

[0060] In one possible implementation, the attachment is a towing hook, a towing hook, a tubular attachment or a slotted attachment.

[0061] In one possible implementation, the second region extends partially below the first gum line, the orthodontic device includes an orthodontic device edge cut line, and the predetermined distance between the orthodontic device edge cut line and the corresponding outer contour line of the edge of the second region ranges from 0.2 mm to 2 mm.

[0062] In one possible implementation, the second region extends partially below the first gum line, and the orthodontic device includes an orthodontic device edge cut line that is located below the first gum line only in a portion of the second region, and another portion of the orthodontic device edge cut line approximately coincides with the first gum line.

[0063] In one possible implementation, the second region extends partially below the first gum line, and the orthodontic device includes an orthodontic device edge cut line that is located below the first gum line in portions of the second region and in portions of other teeth adjacent to the second region.

[0064] In one possible implementation, when the orthodontic device is worn on a tooth and occludes with an opposing tooth, the attachment and the opposing tooth are spaced apart. [Brief explanation of the drawings]

[0065] [Figure 1] FIG. 1 is a diagram showing the fit of an orthodontic appliance without attachments to teeth in one embodiment of the present invention. [Figure 2] FIG. 2 is a diagram (part 1) showing the fit of an orthodontic appliance with attachments attached to teeth in one embodiment of the present invention. [Figure 3] FIG. 3 is a diagram (part 2) showing the fit between an orthodontic appliance with an attachment and teeth in one embodiment of the present invention. [Figure 4] FIG. 4 is a flow chart of a method for generating an edge cut line for a correction device according to an embodiment of the present invention. [Figure 5] FIG. 5 is a diagram (part 1) showing the fit between an orthodontic appliance with an attachment attached and teeth in one embodiment of the present invention. [Figure 6] FIG. 6 is a diagram (part 2) showing the fit between an orthodontic appliance with an attachment and teeth in one embodiment of the present invention. [Figure 7] FIG. 7 is a diagram (part 3) showing the fit between an orthodontic appliance with an attachment and teeth in one embodiment of the present invention. [Figure 8] FIG. 8 is a structural diagram of an electronic device according to an embodiment of the present invention. [Figure 9-13] 9 to 13 are diagrams showing the fitting of an orthodontic device to teeth in one embodiment of the present invention. [Figure 14-17] 14 to 17 are diagrams showing the fitting of an orthodontic device and teeth in another embodiment of the present invention. [Explanation of symbols]

[0066] 10 Orthodontic device 20 Dental Crown 30 Gum line 40 Orthodontic appliance edge cutting line 50 attachments 60 Antagonist 70 Second area 71 First end 72 Second end 101 Orthodontic device body 51 bottom 52 Traction member 53 Bottom 54 Connecting rod 55 Top DETAILED DESCRIPTION OF THE INVENTION

[0067] The embodiments described below with reference to the drawings are illustrative and are intended to explain the present invention and should not be understood as limiting the present invention. All other embodiments that can be obtained by a person skilled in the art based on the embodiments of the present invention without any creative efforts are also included in the scope of protection of the present invention.

[0068] In describing the present invention, directions or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," "radial," and the like are based on directions or positional relationships shown in the drawings and are intended to facilitate and simplify the description of the present invention, but do not indicate that the indicated or implied devices or elements have a particular orientation or must be constructed or operated in a particular direction, and therefore should not be understood as limiting the present invention.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating the relative importance or implying the number of technical features being indicated. Thus, a feature qualified by "first" or "second" may explicitly or implicitly include one or more of that feature. In describing the present invention, "plurality" means two or more unless otherwise expressly and specifically limited.

[0070] As shown in Figure 1, in one possible implementation, the edge of the orthodontic appliance 10 can be cut along the gum line 30. That is, the orthodontic appliance edge cut line 40 is created generally at the gum line 30, and the orthodontic appliance 10 is attached to the crown 20 of the tooth.

[0071] As shown in FIG. 2, if the height of the crown 20 of the tooth is low, the area in which the attachment 50 can be attached will be relatively small in the vertical direction of the tooth, and the spatial size requirements for attaching the attachment 50 may not be met, resulting in the attachment 50 not being able to be attached or having a low attachment success rate.

[0072] Furthermore, as shown in Figure 3, if there is occlusal interference between the added attachment 50 and the opposing tooth, it is necessary to move it further in the direction of the gum line 30, but since it is restricted by the orthodontic device edge cut line 40 and there is not enough space for it to continue moving, the attachment 50 will not be successfully added.

[0073] In response to the problems with the above solutions, this embodiment provides a method for generating an orthodontic appliance edge cut line 40. As shown in FIGS. 5, 6, and 7, an attachment 50 is attached to this orthodontic appliance 10. The method for attaching the attachment 50 to the orthodontic appliance 10 varies depending on the type of attachment 50. For example, the attachment 50 can be attached to the orthodontic appliance 10 by fixedly connecting it using adhesive or other methods, or it can be attached to the orthodontic appliance 10 by being integrally molded (e.g., a lingual spike), or it can be attached to the orthodontic appliance 10 by other methods. In the orthodontic technology field, there are many types of orthodontic appliance attachments 50 that assist tooth movement, some of which are attached to the orthodontic appliance 10 and others that are attached directly to the teeth. However, the attachment 50 in this embodiment refers only to the attachment 50 attached to the orthodontic appliance 10.

[0074] Because the orthodontic appliance 10 is attached to the user's teeth during use, data on the user's teeth is first collected, a dental impression (model) corresponding to the user's teeth is generated, and then, through digital simulation, the orthodontic appliance 10 in its initial state can be simulated and attached to the dental impression. This initial state orthodontic appliance 10 is an orthodontic appliance 10 cut along the gum line 30. The dental impression can be generated based on a three-dimensional model obtained by scanning the user's oral cavity, a two-dimensional image formed by photographing the user's oral cavity, or a model obtained based on various types of image data after scanning the dental impression data. At the same time, the dental impression data source can be collected before generating a treatment plan, collected when updating the treatment plan during the treatment process, or collected during remote monitoring.

[0075] On this basis, as shown in Figure 4, a tooth contour of a tooth mold corresponding to at least one first tooth is identified, and a first region corresponding to the tooth contour is obtained. Note that teeth in the oral cavity are generally divided into a root and a crown 20, the outer periphery of the root is covered by gums, and the tooth contour refers to the external contour formed by the combination of the crown 20 and interdental space of the first tooth. This external contour is a three-dimensional shape, and when an attachment 50 is attached to the orthodontic device 10 and corrects the teeth in cooperation with the orthodontic device 10, the attachment 50 is generally located on the labial or lingual side of the tooth, so the first region corresponding to the tooth contour refers to the region corresponding to the labial or lingual side of the tooth in the tooth contour.

[0076] In this embodiment, the first tooth is a tooth on a dental mold, and the number of first teeth may be one or more. When there is one first tooth, the first tooth is a specific tooth on which the attachment 50 on the orthodontic device 10 acts, and the identified tooth contour at this time is the outer contour of the dental crown 20 corresponding to that specific tooth, and the region of that outer contour corresponding to the labial or lingual side of the tooth is the acquired first region. When there are multiple first teeth, the attachment 50 may be located on the orthodontic device 10 at a position corresponding to one of the first teeth, or may be located on the orthodontic device 10 at positions corresponding to multiple first teeth and interdental spaces, and the identified tooth contour at this time is the outer contour formed by combining the dental crowns 20 and interdental spaces corresponding to the multiple first teeth, and the region of that outer contour corresponding to the labial or lingual side of the tooth is the acquired first region.

[0077] At the same time as obtaining the first region, a second region to be added corresponding to the attachment 50 is identified on the orthodontic device 10 in its initial state. The orthodontic device 10 in its initial state is simulated and attached to a dental mold, and the attachment 50 is added to the orthodontic device 10. When the orthodontic device 10 is attached to the dental mold, at least a portion of the attachment 50 also corresponds to at least a portion of the tooth or interdental space of the first tooth. Therefore, at this point, the second region can be identified based on the area occupied by the attachment 50 for the first tooth. Note that if there is one first tooth, the attachment 50 may directly correspond to the crown 20 of the first tooth, or it may correspond to the crown 20 and the gums of the first tooth. If there are multiple first teeth, the attachment 50 may correspond to the crowns 20 and interdental spaces of multiple first teeth, or it may correspond to the crowns 20, the gums, and interdental spaces of multiple first teeth.

[0078] Specifically, the second region can be determined based on the type of attachment 50. For example, after the type of attachment 50 is determined, the position of the corresponding first tooth can be determined, and the second region can be directly identified based on the area of ​​the first tooth covered by the attachment 50. If the position of the corresponding first tooth cannot be determined based on the type of attachment 50 alone, the second region can be identified based on the type of attachment 50 and its intended position. If the environment in which the attachment 50 is placed may affect the determination of the second region after it is attached, the environment of the attachment 50 must be considered in addition to the type of attachment 50 and its intended position. This environment can specifically include a single dental crown 20, a dental space, gums, etc., or a combination thereof.

[0079] After both the first and second regions are determined, the first and second regions are compared. If the first region can completely cover the second region, such as the attachment 50 shown on the left side of FIG. 5, where there is only one first tooth and the attachment 50 does not correspond to the gum of the first tooth, this means that the attachment 50 on the orthodontic appliance 10 will be located within the first region when the orthodontic appliance 10 is attached to the user's teeth. In this case, the orthodontic appliance edge cutting line 40 can be generated directly based on the position of the gum line 30, and the orthodontic appliance 10 can be cut using this orthodontic appliance edge cutting line 40. When the orthodontic appliance 10 is attached to the user's teeth after cutting, the attachment 50 on the orthodontic appliance 10 can directly act on the user's teeth, eliminating the problem of the attachment 50 not being able to be attached or having a low attachment success rate.

[0080] In some embodiments, if the first region cannot completely cover the second region, for example, when the number of first teeth is one and the attachment 50 partially corresponds to the gum of the first tooth, as in the attachment 50 shown on the right side of FIG. 5 , the orthodontic appliance edge cut line 40 can be generated based on the second region, and the orthodontic appliance 10 can be cut based on this orthodontic appliance edge cut line 40. When the orthodontic appliance 10 is worn on the user's teeth, not only can the attachment 50 be successfully applied to the orthodontic appliance 10, but the success rate of application can also be improved.

[0081] Specifically, when the first region cannot completely cover the second region, there are many situations regarding the shape of the second region and the orthodontic device edge cut line 40. Hereinafter, Situation 1 to Situation 4 will be taken as examples to explain.

[0082] Situation 1: The portion of the orthodontic appliance edge cut line 40 corresponding to the first tooth is located below the first gum line 30, and the first gum line 30 includes the gum line 30 of the first tooth.

[0083] It should be understood that the tooth has a gum line 30 as its boundary, with the tooth above the gum line 30 facing in the direction of the crown 20 of the tooth, and the tooth below the gum line 30 facing in the direction of the gingiva of the tooth. With this setting, after cutting the orthodontic device 10 using the generated orthodontic device edge cut line 40, when the orthodontic device 10 is attached to the user's teeth, the attachment 50 can be successfully attached to the orthodontic device 10 and can act on the user's teeth.

[0084] As shown in Figure 5, there is one first tooth, and the first gum line 30 includes not only the gum line 30 of that first tooth but also the gum lines 30 of several teeth adjacent to that first tooth. However, the generated orthodontic device edge cut line 40 is located below the first gum line 30 only at the location of that first tooth, and coincides with the first gum line 30 at all locations of the other teeth. However, in other embodiments, there may be one or more first teeth, and the first gum line 30 may include only the gum line 30 of the first tooth, or the first gum line 30 may include not only the gum line 30 of the first tooth but also the gum line 30 of at least a portion of at least one tooth adjacent to that first tooth. At the same time, the orthodontic device edge cut line 40 may be located below the first gum line 30 at only a portion of the first tooth, and does not necessarily correspond to all locations of the first tooth. In addition, the orthodontic device edge cut line 40 can be positioned below the first gum line 30 at a portion of the first tooth and one of the teeth adjacent to the first tooth, and there is no fixation restriction; it is only necessary that the attachment 50 can be successfully attached to the orthodontic device 10 when the cut orthodontic device 10 is attached to the user's teeth.

[0085] Situation 2: At least a part of the orthodontic appliance edge cut line 40 intersects with the first gum line 30, and the first gum line 30 includes the gum line 30 of the first tooth.

[0086] As shown in Figure 5, there is one first tooth, and the first gum line 30 includes not only the gum line 30 of the first tooth but also the gum lines 30 of the teeth adjacent to the first tooth, but the generated orthodontic device edge cut line 40 has a portion that intersects with the first gum line 30. In other words, this orthodontic device edge cut line 40 is located below the first gum line 30 only at the portion of the first tooth, so that when the orthodontic device 10 is attached to the user's teeth, the attachment 50 can be successfully attached to the orthodontic device 10 and act on the user's teeth.

[0087] Situation 3: The second region is partially located below the first gum line 30.

[0088] As shown in FIG. 5, the second region of the right attachment 50 on the first tooth is partially located below the first gum line 30. In this case, the corresponding first region cannot cover the second region, so an orthodontic appliance edge cut line 40 is generated based on the second region. The orthodontic appliance 10 can be cut based on this orthodontic appliance edge cut line 40, and when the orthodontic appliance 10 is attached to the user's teeth, the attachment 50 can be successfully attached to the orthodontic appliance 10 and act on the user's teeth. Note that in other embodiments, the second region may be located completely below the first gum line 30.

[0089] Situation 4: The second region partially intersects the first gum line 30.

[0090] As shown in Fig. 5, the second region of the first tooth of the right attachment 50 partially intersects with the first gum line 30. In this case, the corresponding first region cannot cover the second region either, so the orthodontic device edge cut line 40 can be generated based on the second region as well, and the orthodontic device 10 can be cut based on this orthodontic device edge cut line 40.

[0091] It should be noted that the above four situations may overlap or be combined in part, i.e., a specific implementation may adopt a combination of two, three, or four of the above situations.

[0092] In one possible implementation, when an attachment 50 is attached to an orthodontic device 10 and corrects teeth in cooperation with the orthodontic device 10, there is a possibility that an occlusal interference problem may occur between the attachment 50 and its corresponding tooth 60. Therefore, it is necessary to adjust the attachment position of the attachment 50 on the orthodontic device 10 to avoid the occlusal interference problem while ensuring the functionality of the attachment 50.

[0093] Therefore, in this method for generating the orthodontic appliance edge cut line 40, when comparing the first region and the second region, it can also be determined whether there is an occlusal interference between the attachment 50 on the orthodontic appliance 10 and the opposing tooth 60 of the first tooth, and if there is an occlusal interference, the addition position of the attachment 50 on the orthodontic appliance 10 is adjusted accordingly.

[0094] There are many ways to implement the addition position, and the following will take addition to the first position as an example.

[0095] The first position is the optimal position selected in combination with the actual application, the position selected in combination with the patient's indications, or the position selected based on the patient's dental condition, and is not limited here.

[0096] When the attachment 50 is added to the first position on the orthodontic appliance 10, it can be determined whether or not there is an occlusal interference between the attachment 50 and the first tooth's opposing tooth 60. At the same time, it can also be determined whether or not the first region can cover the second region. If there is no occlusal interference and the first region can cover the second region, the orthodontic appliance edge cut line 40 can be generated based on the position of the gum line 30. Alternatively, if there is no occlusal interference and the first region cannot completely cover the second region, the orthodontic appliance edge cut line 40 can be generated based on the second region. Note that the addition of the attachment 50 to the first position on the orthodontic appliance 10 is determined based on the type of attachment 50, and the attachment 50 can maximize its effectiveness in this first position.

[0097] However, if there is occlusal interference with the opposing tooth 60 of the first tooth when the attachment 50 is in the first position on the orthodontic device 10, it is necessary to adjust the position of the attachment 50 on the orthodontic device 10 to the first position. As shown in Figure 6, the direction of the arrow in the figure is the adjustment direction of the attachment 50, and the position of the attachment 50 in the figure is the first position after adjustment. At this time, the attachment 50 is in this first position, and there is no occlusal interference with the opposing tooth 60 of the first tooth.

[0098] It should be understood that when the position of the attachment 50 on the orthodontic device 10 changes, the corresponding second region also changes, and therefore there is no order in which the step of "comparison between the first region and the second region" and the step of "determining whether the attachment 50 attached to the orthodontic device 10 has an occlusal interference with the antagonist tooth 60 of the first tooth" are performed, and the two steps are performed intersecting each other, and this is not limited thereto. The goal is that when the orthodontic device 10 is finally attached to the user's teeth, the attachment 50 can be successfully attached to the orthodontic device 10 and can correct the teeth in cooperation with the orthodontic device 10, while also avoiding occlusal interference between the attachment 50 and its antagonist tooth 60.

[0099] Furthermore, the positions of the attachments 50 on the orthodontic device 10 have a priority, and the attachments 50 are attached to the orthodontic device 10 in descending order of priority. This priority is determined based on related characteristics such as the shape of the attachment 50 and the function that the attachment 50 is to achieve. For example, for a specific attachment 50, the top 10 attachment positions are listed, and the first position is the aforementioned first position. When the attachment 50 is attached to this first position, the attachment 50 can maximize its function. In terms of priority, the second position is lower than the first position, meaning that when the attachment 50 is attached to the second position, the function that can be achieved is less than when it is attached to the first position. The same applies to the third position, fourth position, etc. Of course, the same priority may correspond to two or more positions, and in this case, based on the requirement to better realize the function of the attachment 50, these two or more positions with the same priority may all be used to attach the attachment 50. In this case, other factors may also be used as a reference to determine which position the attachment 50 is attached to. Specific factors that may be used as a reference are those present in actual application scenarios, and will not be described again here.

[0100] As shown in FIG. 6 , when the attachment 50 is attached at the highest priority position, if there is a possibility that the attachment 50 will cause occlusal interference with the opposing tooth 60 of the first tooth, the attachment position of the attachment 50 must be lowered. For example, if occlusal interference with the opposing tooth 60 exists when the attachment 50 is attached at the first position, the attachment 50 can be adjusted to the second position. If occlusal interference with the opposing tooth 60 still exists when the attachment 50 is attached at the second position, the attachment position of the attachment 50 can be further lowered. For example, the attachment 50 can be attached at the third position or other positions in order of priority, and finally the position of the attachment 50 on the orthodontic appliance 10 is adjusted to the first position. In other words, when the attachment 50 is in this first position, there is no occlusal interference with the opposing tooth 60 of the first tooth.

[0101] In this embodiment, when the attachment 50 is added to the first position on the orthodontic device 10, this first position refers to a position where there is no occlusal interference with the opposing tooth 60 of the first tooth, and before the position of the attachment 50 on the orthodontic device 10 is adjusted to the first position, the attachment 50 is in a second position on the orthodontic device 10. This second position refers to the position of the attachment 50 when there is occlusal interference between the attachment 50 and the opposing tooth 60 of the first tooth.

[0102] In another embodiment, when the attachment 50 is added to the first position on the orthodontic appliance, there is a possibility that an occlusal interference with the first tooth's opposing tooth 60 still exists, and in this case, further adjustment of the first position is required. At each adjustment, the position of the attachment 50 before the adjustment becomes the second position, and the position of the attachment 50 after the adjustment becomes the new first position. Furthermore, at each adjustment, the priority corresponding to the new first position is lower than the priority of the corresponding second position, so that when the attachment 50 is finally added to the final first position on the orthodontic appliance 10, there is no occlusal interference with the first tooth's opposing tooth 60. Note that at each adjustment, the priority corresponding to the new first position may be equal to the priority of the corresponding second position. In other words, when there are multiple attachment positions with the same priority, if adding the attachment 50 to one of those positions would cause an occlusal interference with the first tooth's opposing tooth 60, the other position with the same priority is prioritized during adjustment.

[0103] 6, in this embodiment, when there is occlusal interference between the attachment 50 and the first tooth's opposing tooth 60, the position of the attachment 50 on the orthodontic appliance 10 is adjusted, and the adjustment direction is toward the gingival margin. In some embodiments, the adjustment direction of different attachments 50 is not fixed and needs to be specifically determined based on the shape of the attachment 50 and the function that the attachment 50 is to achieve.

[0104] As can be understood, in the process of the attachment position of the attachment 50 continuing to decrease, a simulation comparison of the second region and the first region in the position of the attachment 50 can be constantly performed, and there is no fixed order between the two, but in a state where occlusal interference is not eliminated, the orthodontic device edge cut lines 40 generated based on the comparison results are not all the final orthodontic device edge cut lines 40. In other words, before generating the final orthodontic device edge cut line 40, it is necessary to ensure that there is no occlusal interference between the attachment 50 and the antagonist tooth 60 of the first tooth.

[0105] Furthermore, in this embodiment, when generating the orthodontic device edge cut line 40 based on the second region, the position is determined to be a predetermined distance away from the position information of the second region. The position information of the second region is specifically the edge contour of the second region, and the orthodontic device edge cut line 40 is generated at a position 0.2 mm to 2 mm from the edge contour of the second region. In other words, at least at the position where the attachment 50 is attached, the distance between the orthodontic device edge cut line 40 and the edge contour of the second region is between 0.2 mm and 2 mm. Note that the position information of the second region is not limited to the edge contour of the second region. In other embodiments, this position information may be the center position of the second region or any information that can be used as a reference within the second region. Furthermore, in other embodiments, even when the edge contour of the second region is used as reference information, the dimension between the orthodontic device edge cut line 40 and the edge contour of the second region can be adjusted as needed and is not limited to a fixed dimension.

[0106] Furthermore, the finally generated orthodontic appliance edge cut line 40 extends along the first direction of the first tooth and covers at least one tooth or interdental space adjacent to the first tooth. Here, the first direction may be the mesial direction of the first tooth, the distal direction of the first tooth, or a direction determined based on other important points of the first tooth. For example, as shown in FIG. 7, if there is one first tooth, the finally generated orthodontic appliance edge cut line 40 is spaced 0.2 mm to 2 mm from the edge contour of the second region at the location of the first tooth, extends along the mesial and distal directions of the first tooth at the location of the first tooth, and covers one tooth adjacent to the first tooth. If orthodontic appliances 10 need to be attached to other teeth, the edge cut lines of the orthodontic appliances 10 corresponding to the other teeth can be directly generated based on the corresponding gum lines 30.

[0107] Furthermore, throughout the process of generating the orthodontic appliance edge cut line 40, the portion of the dental mold to which the attachment 50 is to be attached or the entire dental mold can be displayed, and the attachment 50 to be attached, the orthodontic appliance 10 attached to the dental mold, or both, can be displayed on the dental mold in a specific manner.

[0108] Optionally, after the orthodontic device edge cut line 40 is generated by the above method, the orthodontic device edge cut line 40 is also displayed, allowing the operator to more intuitively observe the orthodontic device edge cut line 40 and thereby make adjustments easier. Conventional techniques in the art can be used to display the orthodontic device edge cut line 40. For example, the edge cut of the orthodontic device 10 can be displayed in real time on a computer screen through dedicated computer software, or the orthodontic device edge cut line 40 can be displayed on a pre-fabricated dental mold through special lighting.

[0109] Furthermore, the method for generating the orthodontic device edge cut line 40 also includes the following: obtaining a first command from the user. This first command is for specifying desired position information of the attachment 50 or desired position information of the edge of the orthodontic device 10, and then generating a first cut line using this first command and the above-mentioned second region. In actual operation, depending on the specific circumstances of the patient and treatment, the user can manually add the desired position of the attachment 50 or the desired position of the edge line of the orthodontic device 10, thereby achieving better treatment effects.

[0110] For example, the user can add or move the attachment 50 based on the display screen showing the dental impression, and determine the desired position of the attachment 50. After the user specifies the desired position of the attachment 50, a first command can be generated, and this first command can be used to indicate desired position information of the attachment 50. Here, the position information includes coordinate information, movement information, target position information, etc. of the attachment 50, and also position information from the gums.

[0111] Furthermore, for example, the user can move the orthodontic device edge cut line 40 based on the display screen showing the dental impression, and determine the desired position of the orthodontic device edge cut line 40. After the user specifies the desired position of the orthodontic device edge cut line 40, a first command can be generated, and this first command can be used to indicate desired position information of the orthodontic device edge cut line 40. Here, the position information is coordinate information, movement information, target position information, etc. of the orthodontic device edge cut line 40, and is also position information from the gum line 30.

[0112] After obtaining this first command, a first cut line is generated based on the desired position of the attachment 50 or the corrective device edge cut line 40 and the second region.

[0113] Considering another possible scenario, after the first cut line is displayed, the user may further adjust the first cut line. For example, the user may operate the screen, which may adjust the position of the attachment 50 or the position of the first cut line. The screen may display information about the generated first cut line, attachment 50, etc.

[0114] At the same time, the method for generating the straightening device edge cut line 40 also includes: adjusting the generated first cut line to a second cut line in response to a second command from the user, the second command indicating adjustment information for the first cut line, and the second cut line being used to generate the target straightening device 10.

[0115] For example, the user can adjust the position of the attachment 50 based on the display screen that also displays the dental impression. After the user specifies the updated position of the attachment 50, a second command can be generated, and this second command is used to specify the updated position information of the attachment 50. Here, the position information includes coordinate information, movement information, target position information, etc. of the attachment 50, and also position information from the gums.

[0116] Furthermore, for example, the user can move the first cut line based on the display screen showing the dental impression and determine the target position of the first cut line. After the user specifies the target position of the first cut line, the user can generate a second command, which is used to specify updated position information of the first cut line. Here, the position information includes coordinate information, movement information, target position information, etc. of the first cut line, as well as position information from the gum line 30.

[0117] After obtaining this second command, the first cut line is adjusted to the second cut line based on the target position of the attachment 50 or the first cut line, and the target straightening device 10 is generated using the second cut line.

[0118] In another possible implementation, the method for generating the orthodontic appliance edge cutting line 40 may include obtaining a dental impression corresponding to the first tooth, identifying a second region corresponding to the attachment 50 in response to a first command from the user, and directly generating the orthodontic appliance edge cutting line 40 based on the second region. The dental impression generation method may be based on a three-dimensional model obtained by scanning the user's oral cavity, or on a two-dimensional image formed by photographing the inside of the user's oral cavity, or on a model obtained based on various types of image data after scanning the dental impression data.

[0119] The first command in this implementation method may be the same as the first command in the above embodiment. That is, the user can add or move the attachment 50 based on the display screen displaying the dental impression to determine the desired position of the attachment 50. After the user specifies the desired position of the attachment 50, they can generate a first command, which can be used to indicate the desired position of the attachment 50. Here, the position information includes coordinate information, movement information, and target position information of the attachment 50, as well as position information from the gums. After determining the position information of the attachment 50 based on the first command, a second region corresponding to the attachment 50 can be identified. That is, the second region can be used to directly generate the orthodontic device edge cut line 40. For a specific method of generating the orthodontic device edge cut line based on the second region, please refer to the above embodiment. However, the first command in this implementation method may differ from the first command in the above embodiment, as long as it can determine the position where the attachment 50 is added to the orthodontic device 10.

[0120] In this implementation, the portion of the dental mold to which the attachment 50 is to be attached can be displayed, and the attachment 50 to be attached, the orthodontic appliance 10 attached to the dental mold, or both can be displayed on the dental mold in a specific manner. Optionally, after the orthodontic appliance edge cut line 40 is generated in the above manner, the orthodontic appliance edge cut line 40 can be displayed to allow the operator to more intuitively observe the orthodontic appliance edge cut line 40 and thereby make adjustments easier. Conventional techniques in the art can be used to display the orthodontic appliance edge cut line 40. For example, the edge cut of the orthodontic appliance 10 can be displayed in real time on a computer screen through dedicated computer software, or the orthodontic appliance edge cut line 40 can be displayed on the prepared dental mold through special lighting.

[0121] This embodiment also provides an apparatus for generating an orthodontic appliance cut line, the apparatus including:

[0122] A processing module: for identifying a tooth contour of the dental impression corresponding to at least one first tooth and obtaining a first region corresponding to the tooth contour.

[0123] a determination module for identifying a second region corresponding to an attachment at least partially located on an orthodontic device corresponding to at least a portion of a tooth or dental space of at least one of the first teeth, the orthodontic device being associated with the dental impression;

[0124] a generating module: for generating a straightening device edge cutting line based on the second region through a processing module when the first region cannot completely cover the second region, which straightening device edge cutting line is used to cut the straightening device;

[0125] In one possible implementation, the orthodontic device edge cut line is: At least a portion of the orthodontic device edge cut line is located below the first gum line. At least a part of the orthodontic device edge cut line intersects with the first gum line. At least a portion of the second region is located below the first gum line. At least a portion of the second region intersects the first gum line; and the first gum line includes the gum line of at least one of the first teeth and / or the gum line of at least a portion of at least one tooth adjacent to the at least one first tooth; At least one of the following is satisfied.

[0126] One possible implementation further includes:

[0127] a processing module for adjusting a position of the attachment on the orthodontic appliance to a first position when an occlusal interference exists between the attachment and an antagonist of the first tooth;

[0128] In one possible implementation, before adjusting the position of the attachment on the orthodontic appliance to the first position, the attachment is in a second position on the orthodontic appliance, which is the position of the attachment when an occlusal interference exists between the attachment and the antagonist of the first tooth.

[0129] In one possible implementation, the priority of the first location is lower than or equal to the priority of the second location.

[0130] In one possible implementation, the priority of where the attachment is located is related to the functionality information of the attachment.

[0131] One possible implementation further includes:

[0132] A processing module: for adjusting the position of the attachment on the orthodontic appliance when an occlusal interference exists between the attachment and the antagonist of the first tooth, the direction of the adjustment being toward the gingival margin.

[0133] In one possible implementation, the method further includes ensuring that there is no occlusal interference between the attachment and the antagonist of the first tooth before generating the orthodontic appliance edge cut line.

[0134] In one possible implementation, the corrector edge cut line is determined at a position a predetermined distance away from the position information of the second region.

[0135] In one possible implementation, the range of said predetermined distance is between 0.2 mm and 2 mm.

[0136] In one possible implementation, the orthodontic device edge cut line extends along a first direction of the first tooth and covers at least one tooth or tooth gap adjacent to the first tooth.

[0137] One possible implementation further includes:

[0138] A display module: for displaying at least a portion of the dental impression, for displaying at least one of the orthodontic appliance edge cut line, the attachment, and the orthodontic appliance.

[0139] One possible implementation further includes:

[0140] The acquisition module is for acquiring a first command from a user, which is used to indicate desired position information of the attachment or desired position information of the orthodontic device edge.

[0141] A processing module: for generating a first cutline based on the first command and the second region.

[0142] One possible implementation further includes:

[0143] a processing module for adjusting the generated first cutline to a second cutline in response to a second command from a user, the second command being used to indicate adjustment information for the first cutline, and the second cutline being used to generate a target correction device.

[0144] In one possible implementation, the second command is: updating location information of the attachment; and a target position of the first cut line after adjustment; is used to indicate at least one of

[0145] The present application also provides an apparatus for generating an orthodontic device edge cut line, the apparatus including:

[0146] An acquisition module: for acquiring a dental impression corresponding to at least one first tooth.

[0147] A processing module: for identifying, in response to a first user command and the dental impression, a second region corresponding to the attachment, the attachment being at least partially positioned on the orthodontic appliance corresponding to at least a portion of the tooth or dental space of at least one of the first teeth, the first command being used to indicate position information of the attachment, and for generating an orthodontic appliance edge cut line based on the second region.

[0148] In one possible implementation, the orthodontic device edge cut line is: At least a portion of the orthodontic device edge cut line is located below the first gum line. At least a part of the orthodontic device edge cut line intersects with the first gum line. At least a portion of the second region is located below the first gum line. At least a portion of the second region intersects the first gum line; and the first gum line includes the gum line of at least one of the first teeth and / or the gum line of at least a portion of at least one tooth adjacent to the at least one first tooth; At least one of the following is satisfied.

[0149] One possible implementation further includes:

[0150] a processing module for adjusting a position of the attachment on the orthodontic appliance to a first position when an occlusal interference exists between the attachment and an antagonist of the first tooth;

[0151] In one possible implementation, before adjusting the position of the attachment on the orthodontic appliance to the first position, the attachment is in a second position on the orthodontic appliance, which is the position of the attachment when an occlusal interference exists between the attachment and the antagonist of the first tooth.

[0152] In one possible implementation, the priority of the first location is lower than or equal to the priority of the second location.

[0153] In one possible implementation, the priority of where the attachment is located is related to the functionality information of the attachment.

[0154] One possible implementation further includes:

[0155] A processing module: for adjusting the position of the attachment on the orthodontic appliance when an occlusal interference exists between the attachment and the antagonist of the first tooth, the direction of the adjustment being toward the gingival margin.

[0156] In one possible implementation, the method further includes ensuring that there is no occlusal interference between the attachment and the antagonist of the first tooth before generating the orthodontic appliance edge cut line.

[0157] In one possible implementation, the corrector edge cut line is determined at a position a predetermined distance away from the position information of the second region.

[0158] In one possible implementation, the range of said predetermined distance is between 0.2 mm and 2 mm.

[0159] In one possible implementation, the orthodontic device edge cut line extends along a first direction of the first tooth and covers at least one tooth or tooth gap adjacent to the first tooth.

[0160] One possible implementation further includes:

[0161] A display module: for displaying at least a portion of the dental impression, and for displaying at least one of the orthodontic appliance edge cut line, the attachment, and the orthodontic appliance.

[0162] One possible implementation further includes:

[0163] a processing module for adjusting the generated first cutline to a second cutline in response to a second command from a user, the second command being used to indicate adjustment information for the first cutline, and the second cutline being used to generate a target correction device.

[0164] In one possible implementation, the second command is used to update position information of the attachment and / or to indicate a target position after adjustment of the first cutline.

[0165] This embodiment also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that when the processor executes the program, it implements the possible method of any of the above embodiments.

[0166] As shown in FIG. 8, at the hardware level, this electronic device includes a processor, an internal bus, a network interface, memory, and non-volatile memory, and may also include other hardware required for the business. The processor loads the corresponding computer program from the non-volatile memory into memory and executes it to realize the oral cavity model display method or multi-planar reconstruction method described above. Of course, this specification does not exclude other implementation methods other than software implementation, including, for example, logic devices and methods combining software and hardware. In other words, the execution entity of the following process flow is not limited to each logic unit, but may also be hardware or logic devices.

[0167] For convenience of explanation, the above device is described as being divided into units by function. Of course, when implementing this specification, the functions of each unit can be realized by the same or multiple pieces of software and / or hardware.

[0168] It should be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, a system, or a computer program product. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage devices, CD-ROMs, optical storage devices, etc.) containing computer-usable program code.

[0169] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0170] The memory may include volatile memory (eg, random access memory (RAM) and / or cache memory) and may also include read-only memory (ROM).

[0171] The memory may also include a program tool (or utility tool) having a set (at least one) of program modules, including, but not limited to, an operating system, one or more applications, other program modules, and program data. Each of these examples, or a specific combination thereof, may include implementation in a network environment.

[0172] The processor executes computer programs stored in the memory to perform various functional applications and data processing, such as the methods of the above-described embodiments.

[0173] The input and / or output devices may include a scanning device, a camera interface, an input device (e.g., a mouse, a keyboard, etc.), a display device (e.g., a monitor), a printer, and / or one or more other input devices. The input / output interface may receive executable instructions and / or data and store them in a data storage device (e.g., a memory). For example, it may be used to receive or store oral model data or target files.

[0174] In some embodiments, the scanning device can be configured to scan one or more physical tooth models of the patient's dentition. In one or more embodiments, the scanning device can be configured to directly scan the patient's dentition and / or dental appliances. The scanning device can be configured to input data into a computing device.

[0175] In some embodiments, the camera interface can receive input from an imaging device (e.g., a 2D or 3D imaging device), such as a digital camera, a print photo scanner, and / or other suitable imaging device. For example, the input from the imaging device can be stored in memory.

[0176] The processor can execute instructions to provide, for example, a display of a model of the oral cavity on a monitor. For example, the computing device can be configured to allow a treating professional or other user to input treatment goals. The received input can be transmitted as data to the processor and / or stored in memory.

[0177] Such connectivity allows for the communication of input and / or output data and / or instructions, and other types of information, some embodiments being distributed among various computing devices in one or more networks, and used for the collection, computation, and / or analysis of any of the methods mentioned in this application.

[0178] It should be noted that although the above detailed description refers to several units / modules or sub-units / modules of an electronic device, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present application, the features and functions of two or more of the above units / modules may be embodied in one unit / module. Conversely, the features and functions of one of the above units / modules may be further divided and embodied by multiple units / modules.

[0179] This embodiment also relates to an orthodontic appliance 10, which is for attachment to teeth and includes an orthodontic appliance body and an attachment 50. The attachment 50 is specifically attached to the orthodontic appliance body, and when the orthodontic appliance body is attached to the teeth, the attachment 50 acts on the specific teeth in a specific manner to achieve specific tooth correction. The edge cut line of this orthodontic appliance body is obtained by the above-mentioned method for generating an orthodontic appliance edge cut line 40.

[0180] In connection with the above-mentioned method for generating the corrective device edge cut line 40, this embodiment also relates to a readable medium, which is specifically a non-transitory computer-readable medium, and which stores instructions that can be executed by a processor to cause a computing device to perform the above-mentioned generation method.

[0181] Those skilled in the art should understand that the embodiments herein may be provided as a method, a system, or a computer program product. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage devices, CD-ROMs, optical storage devices, etc.) containing computer-usable program code.

[0182] An embodiment of the present invention provides an orthodontic device 10, which, when combined with Figures 9 and 10, includes an orthodontic device body 101 and an attachment 50 attached to the orthodontic device body 101, the orthodontic device body 101 includes a second region 70 to which the attachment 50 is attached, and when the orthodontic device 10 is attached to the tooth T, the second region 70 is partially located below the first gum line 30 of the tooth T and partially located above the first gum line 30 of the tooth T.

[0183] The tooth T has a first gum line 30 as its boundary line, and the area above the first gum line 30 is in the direction of the crown 20 of the tooth T, and the area below the first gum line 30 is in the direction of the gum T1 of the tooth T.

[0184] In this embodiment, the second region 70 extends from the crown 20 region above the first gum line 30 to the gum T1 region below the first gum line 30, and the size of the second region 70 is relatively large, providing more space for attaching the attachment 50.

[0185] Optionally, when the orthodontic device 10 is attached to the tooth T, the attachment 50 is connected to the bottom surface 51 of the second region 70, and is partially at a position corresponding to a region below the first gum line 30 and partially at a position corresponding to a region above the first gum line 30. That is, the attachment position of the attachment 50 extends from the crown 20 region above the first gum line 30 to the gingival T1 region below the first gum line 30, and the attachment position of the attachment 50 is relatively large, and the fixation strength between the attachment 50 and the second region 70 is relatively large.

[0186] Optionally, bottom surface 51 of attachment 50 connects to second region 70 , with bottom surface 51 covering some or all of the area of ​​second region 70 .

[0187] When the bottom surface 51 covers a portion of the second region 70, the bottom surface 51 may be located in the middle region of the second region 70, the lower region of the second region 70, or the upper region of the second region 70, etc., and the projection of the attachment 50 into the second region 70 may be within the outer contour of the second region 70 or may exceed the outer contour of the second region 70.

[0188] When the bottom surface 51 covers the entire area of ​​the second region 70, the outer contour of the bottom surface 51 overlaps with the outer contour of the second region 70, and the projection of the attachment 50 into the second region 70 may be within the outer contour of the second region 70 or may extend beyond the outer contour of the second region 70.

[0189] Optionally, a tooth gap is formed between the crowns 20 of two adjacent teeth, and when the orthodontic device 10 is attached to the teeth, the second region 70 is in a position corresponding to the tooth crown 20 or tooth gap of the at least one first tooth T.

[0190] When the number of first teeth T is one, the second region 70 corresponds to the crown 20 and gums T1 of the first tooth, and when the number of first teeth T is multiple, the second region 70 corresponds to the crowns 20, gums T1 and interdental spaces of multiple first teeth T.

[0191] Optionally, when the orthodontic device 10 is fitted to the teeth T, the attachment 50 is at least partially positioned on the orthodontic device 10 corresponding to at least a portion of the teeth T or a dental gap of at least one first tooth T.

[0192] When the number of first teeth T is one, the attachment 50 corresponds to the crown 20 and gums T1 of the first tooth T, and when the number of first teeth T is multiple, the attachment 50 corresponds to the crowns 20, gums T1 and interdental spaces of multiple first teeth T.

[0193] Optionally, in combination with FIG. 9, the orthodontic device 10 includes an orthodontic device edge cut line 40, which is located below the first gum line 30 only at the portion of the first tooth T, and the orthodontic device edge cut line 40 is approximately aligned with the first gum line 30 at all other tooth portions.

[0194] In Figure 9, the first tooth T is used as an example of one tooth, and the second region 70 corresponds to the crown 20 and gum T1 of the first tooth T. The orthodontic device edge cut line 40 extends convexly to the gum T1 region below the first gum line 30 only at the position of the first tooth T, while the orthodontic device edge cut line 40 approximately coincides with the first gum line 30 at all other tooth positions.

[0195] The orthodontic device edge cut line 40 in Figure 9 extends convexly to the gum T1 region below the first gum line 30 only at the position of the second region 70, and the orthodontic device edge cut line 40 may almost coincide with the first gum line 30 in all regions other than the part corresponding to the second region 70 of the first tooth T and at all positions of other teeth.

[0196] Optionally, in combination with FIG. 11 , the orthodontic device 10 includes an orthodontic device edge cut line 40, where a portion of the first tooth T and portions of other teeth adjacent to the first tooth T are located below the first gum line 30.

[0197] 11, using the first tooth T as an example, the second region 70 corresponds to the crown 20 and gum T1 of the first tooth T, and the orthodontic device edge cut line 40 not only extends convexly below the first gum line 30 to the gum T1 region at the position of the first tooth T, but also extends convexly below the first gum line 30 to the gum T1 region at the positions of the left and right teeth adjacent to the first tooth T. In this case, the orthodontic device edge cut line 40 extending convexly below the first gum line 30 spans three teeth.

[0198] Optionally, the predetermined distance L between the corrector edge cut line 40 and the corresponding edge contour of the second region 70 ranges between 0.2 mm and 2 mm.

[0199] The predetermined distance L is the vertical distance between the corrective device edge cut line 40 and the contour line of the edge of the second region 70, and is controlled by controlling the predetermined distance L.

[0200] Optionally, when orthodontic appliance 10 is worn on the teeth and occludes with the opposing teeth, attachment 50 is attached with a space between them, i.e., there is no interference between attachment 50 and the opposing teeth when in occlusion.

[0201] Optionally, in combination with FIG. 12 , the tooth includes a crown 20 located above a first gum line 30 and a gum T1 located below the first gum line 30, and the second region 70 includes a first end 71 corresponding to the crown 20 and a second end 72 corresponding to the gum T1. When the orthodontic device 10 is attached to the tooth, there is a first distance S1 between the first end 71 and the crown 20, and there is a second distance S2 between the second end 72 and the gum T1, and the first distance S1 is greater than the second distance S2.

[0202] "The first distance S1 is greater than the second distance S2" means that the area of ​​the second region 70 that is closer to the incisal edge (or occlusal surface) of the tooth is farther from the tooth than the area that is farther from the incisal edge (or occlusal surface) of the tooth. This corresponds to the second region 70, which was originally placed in close contact with the tooth, being locally pulled outward, so that the second region 70 extends generally along the direction X that is perpendicular to the jaw plane P. In other words, the second region 70 is tilted to a more upright position.

[0203] The attachment 50 is a towing hook, a towing hook, a tubular attachment or a channel-type attachment, and compared to attaching the attachment to the second region 70 inclined to a horizontal state, the attachment 50 attached to the second region 70 inclined to an upright state is advantageous for attaching a towing member (e.g., a rubber band), preventing the towing member from coming off the attachment 50, and advantageous for stable force transmission of the towing member.

[0204] Optionally, second region 70 is planar, and the angle α between the plane of second region 70 and jaw plane P ranges from 60°-90°. That is, the plane of second region 70 extends along a direction X that is generally perpendicular to jaw plane P, but need not be absolutely perpendicular.

[0205] Optionally, the second end 72 is in close contact with the gums T1, the second region 70 is pulled outward only at the first end 71 and the region adjacent to the first end 71, and the second end 72 is not pulled outward, so that the second end 72 is still in close contact with the gums T1, thereby improving the ability of the entire orthodontic device 10 to wrap around the teeth.

[0206] Optionally, the orthodontic device body 101 further includes a third region 80 and a connection region 90 connecting the third region 80 and the second region 70, wherein the third region 80 is in close contact with the crown 20 and the connection region 90 forms a bend between the second region 70 and the third region 80.

[0207] "The connection region 90 forms a bend between the second region 70 and the third region 80" means that a bend is formed between the connection region 90 and the second region 70, and also a bend is formed between the connection region 90 and the third region 80, thereby enabling the second region 70 to be pulled up outward.

[0208] The connection region 90 extends generally horizontally, the second region 70 extends generally vertically, the third region 80 and the connection region 90 are generally perpendicular to each other, and the connection region 90 and the second region 70 are also generally perpendicular to each other, but this is not limited to this, and other bending types may also be used between the third region 80, the connection region 90 and the second region 70.

[0209] 13, this shows two attachments 50 of the same jaw connected by a towing member 52. In the example where the attachment 50 is a towing hook, the attachment 50 includes a bottom portion 53 that connects to the second region 70, a connecting rod 54 that connects to the bottom portion 53, and a top portion 55 of the connecting rod 54 that is remote from the bottom portion 53, and the towing member 52 is attached to the connecting rod 54.

[0210] When the second region 70 extends along a direction X that is generally perpendicular to the jaw plane P, the extending direction of the connecting rod 54 is generally perpendicular to the buccal surfaces of the teeth, and the extending direction of the retraction member 52 is generally parallel to the buccal surfaces of the teeth. This prevents the retraction member 52 from coming off the connecting rod 54, and ensures stable force transmission of the retraction member 52.

[0211] Even when the two attachments 50 are on different jaws, the second region 70 extending along a direction X generally perpendicular to the jaw plane P can be used to prevent the traction member 52 from coming off the connecting rod 54 and ensure stable force transmission of the traction member 52.

[0212] It should be noted that the boundary between the crown 20 and the gum T1 is a relatively inclined slope, which makes the second region 70 more likely to tilt horizontally. Therefore, by performing an outward lifting process on this portion of the second region 70, it is possible to effectively prevent the angle of the second region 70 from affecting the normal use of the attachment 50.

[0213] Another embodiment of the present invention provides an orthodontic device 10, which, when combined with FIGS. 14 and 15 , includes an orthodontic device body 101 and an attachment 50 attached to the orthodontic device body 101, and the orthodontic device body 101 includes a second region 70 to which the attachment 50 is attached. When the orthodontic device 10 is attached to a tooth T, the second region 70 is proximate to or intersects with the first gum line 30 of the tooth.

[0214] The tooth T has a first gum line 30 as its boundary line, and the area above the first gum line 30 is in the direction of the crown 20 of the tooth T, and the area below the first gum line 30 is in the direction of the gum T1 of the tooth T.

[0215] "The second region 70 is close to the first gum line 30 of the tooth" means that the second region 70 is in an area adjacent to the first gum line 30, and "The second region 70 intersects the first gum line 30" means that the first gum line 30 passes through the second region 70. In other words, the second region 70 is in an area away from the incisal edge (or occlusal surface) of the tooth.

[0216] Optionally, the second region 70 is partially located below the first gum line 30 of the tooth T and partially located above the first gum line 30 of the tooth T, or the second region 70 is entirely located below the first gum line 30, or the second region 70 is entirely located above the first gum line 30. That is, the second region 70 may be located on one side of the first gum line 30, or the second region 70 may be located on both sides of the first gum line 30. In the present embodiment, an example is given in which the second region 70 is partially located below the first gum line 30 of the tooth T and partially located above the first gum line 30 of the tooth T. The second region 70 extends from the crown 20 region above the first gum line 30 to the gingival T1 region below the first gum line 30, and the size of the second region 70 is relatively large, which can provide more space for attaching the attachment 50.

[0217] In a direction perpendicular to the jaw plane P, the second region 70 includes a first end 71 and a second end 72 opposite to each other, with a first distance S1 between the first end 71 and the tooth T and a second distance S2 between the second end 72 and the tooth T, the first distance S1 being greater than the second distance S2.

[0218] "The first distance S1 is greater than the second distance S2" means that the area of ​​the second region 70 that is closer to the incisal edge (or occlusal surface) of the tooth is farther from the tooth than the area that is farther from the incisal edge (or occlusal surface) of the tooth. This corresponds to the second region 70, which was originally placed in close contact with the tooth, being locally pulled outward, so that the second region 70 extends generally along the direction X that is perpendicular to the jaw plane P. In other words, the second region 70 is tilted to a more upright position.

[0219] The attachment 50 is a towing hook, a towing hook, a tubular attachment or a channel-type attachment, and compared to attaching the attachment to the second region 70 inclined to a horizontal state, the attachment 50 attached to the second region 70 inclined to an upright state is advantageous for attaching a towing member (e.g., a rubber band), preventing the towing member from coming off the attachment 50, and advantageous for stable force transmission of the towing member.

[0220] When the second region 70 is partially located below the first gum line 30 of the tooth T and partially located above the first gum line 30 of the tooth T, the first end 71 corresponds to the crown 20 and there is a first distance S1 between the first end 71 and the crown 20, and the second end 72 corresponds to the gum T1 and there is a second distance S2 between the second end 72 and the gum T1.

[0221] Optionally, second region 70 is planar, and the angle α between the plane of second region 70 and jaw plane P ranges from 60°-90°. That is, the plane of second region 70 extends along a direction X that is generally perpendicular to jaw plane P, but need not be absolutely perpendicular.

[0222] Optionally, the second end 72 is in close contact with the gums T1, the second region 70 is pulled outward and lifted only at the first end 71 and the region adjacent to the first end 71, and the second end 72 is not pulled outward, so that the second end 72 is still in close contact with the gums T1, thereby improving the ability of the entire orthodontic device 10 to wrap around the teeth.

[0223] Optionally, the orthodontic device body 101 further includes a third region 80 and a connection region 90 connecting the third region 80 and the second region 70, wherein the third region 80 is in close contact with the crown 20 and the connection region 90 forms a bend between the second region 70 and the third region 80.

[0224] "The connection region 90 forms a bend between the second region 70 and the third region 80" means that a bend is formed between the connection region 90 and the second region 70, and also a bend is formed between the connection region 90 and the third region 80, thereby enabling the second region 70 to be pulled up outward.

[0225] The connection region 90 extends generally horizontally, the second region 70 extends generally vertically, the third region 80 and the connection region 90 are generally perpendicular to each other, and the connection region 90 and the second region 70 are also generally perpendicular to each other, but this is not limited to this, and other bending types may also be used between the third region 80, the connection region 90 and the second region 70.

[0226] 16, this shows two attachments 50 of the same jaw connected by a towing member 52. In the example where the attachment 50 is a towing hook, the attachment 50 includes a bottom portion 53 that connects to the second region 70, a connecting rod 54 that connects to the bottom portion 53, and a top portion 55 of the connecting rod 54 that is remote from the bottom portion 53, and the towing member 52 is attached to the connecting rod 54.

[0227] When the second region 70 extends along a direction X that is generally perpendicular to the jaw plane P, the extending direction of the connecting rod 54 is generally perpendicular to the buccal surfaces of the teeth, and the extending direction of the retraction member 52 is generally parallel to the buccal surfaces of the teeth. This prevents the retraction member 52 from coming off the connecting rod 54, and ensures stable force transmission of the retraction member 52.

[0228] Even when the two attachments 50 are on different jaws, the second region 70 extending along a direction X generally perpendicular to the jaw plane P can be used to prevent the traction member 52 from coming off the connecting rod 54 and ensure stable force transmission of the traction member 52.

[0229] It should be noted that the boundary between the crown 20 and the gum T1 is a relatively inclined slope, which makes the second region 70 more likely to tilt horizontally. Therefore, by performing an outward lifting process on this portion of the second region 70, it is possible to effectively prevent the angle of the second region 70 from affecting the normal use of the attachment 50.

[0230] Optionally, bottom surface 51 of attachment 50 connects to second region 70 , with bottom surface 51 covering some or all of the area of ​​second region 70 .

[0231] When the bottom surface 51 covers a portion of the second region 70, the bottom surface 51 may be located in the middle region of the second region 70, the lower region of the second region 70, or the upper region of the second region 70, etc., and the projection of the attachment 50 into the second region 70 may be within the outer contour of the second region 70 or may exceed the outer contour of the second region 70.

[0232] When the bottom surface 51 covers the entire area of ​​the second region 70, the outer contour of the bottom surface 51 overlaps with the outer contour of the second region 70, and the projection of the attachment 50 into the second region 70 may be within the outer contour of the second region 70 or may extend beyond the outer contour of the second region 70.

[0233] Optionally, in combination with FIG. 14 , the second region 70 extends partially below the first gum line 30, and the orthodontic device 10 includes an orthodontic device edge cut line 40, where only a portion of the second region 70 is located below the first gum line 30, and another portion of the orthodontic device edge cut line 40 is generally coincident with the first gum line 30.

[0234] In Figure 14, as an example where the second region 70 corresponds to the crown 20 and gum T1 of one tooth T, the orthodontic device edge cut line 40 extends convexly to the gum T1 region below the first gum line 30 only at the position of tooth T, and the orthodontic device edge cut line 40 approximately coincides with the first gum line 30 at all other tooth positions.

[0235] The orthodontic device edge cut line 40 in Figure 14 extends convexly below the first gum line 30 to the gum T1 region only at the position of the second region 70, and the orthodontic device edge cut line 40 may almost coincide with the first gum line 30 in all regions other than the part corresponding to the second region 70 of the tooth T and at all positions of other teeth.

[0236] Optionally, in combination with FIG. 17 , the orthodontic appliance 10 includes an orthodontic appliance edge cut line 40, where a portion of the second region 70 and portions of other teeth adjacent to the second region 70 are located below the first gum line 30.

[0237] 17, in an example where the second region 70 corresponds to the crown 20 and gingiva T1 of one tooth T, not only does the orthodontic device edge cut line 40 extend convexly below the first gum line 30 to the gingival T1 region at the position of the tooth T having the second region 70, but the orthodontic device edge cut line 40 also extends convexly below the first gum line 30 to the gingival T1 region at the positions of the left and right teeth adjacent to the tooth T. In this case, the orthodontic device edge cut line 40 extending convexly below the first gum line 30 spans three teeth.

[0238] Optionally, the predetermined distance L between the corrector edge cut line 40 and the corresponding edge contour of the second region 70 ranges between 0.2 mm and 2 mm.

[0239] The predetermined distance L is the vertical distance between the corrective device edge cut line 40 and the contour line of the edge of the second region 70, and is controlled by controlling the predetermined distance L.

[0240] Optionally, when orthodontic appliance 10 is worn on the teeth and occludes with the opposing teeth, attachment 50 is attached with a space between them, i.e., there is no interference between attachment 50 and the opposing teeth when in occlusion.

[0241] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative and that the scope of protection of the present invention is limited by the appended claims. Those skilled in the art can make many changes and modifications to these embodiments without departing from the principles and essence of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A method for generating an orthodontic device edge cut line, comprising: identifying a tooth contour of a tooth impression corresponding to at least one first tooth and obtaining a first region corresponding to the tooth contour; identifying a second region corresponding to an attachment, the attachment being at least partially located on an orthodontic device corresponding to at least a portion of the at least one first tooth or tooth gap, the orthodontic device being associated with the dental impression; and if the first region cannot completely cover the second region, generating an orthodontic device edge cut line based on the second region, the orthodontic device edge cut line being used to cut the orthodontic device. A method for generating an orthodontic device edge cut line.

2. The orthodontic device edge cut line is At least a portion of the orthodontic device edge cut line is located below the first gum line. At least a part of the orthodontic device edge cut line intersects with the first gum line. At least a portion of the second region is located below the first gum line. At least a portion of the second region intersects the first gum line; and the first gum line includes the gum line of at least one of the first teeth and / or the gum line of at least a portion of at least one tooth adjacent to the at least one first tooth; The method for generating an edge cut line for a correction device according to claim 1, wherein at least one of the following is satisfied.

3. and adjusting a position of the attachment on the orthodontic appliance to a first position if an occlusal interference exists between the attachment and the antagonist of the first tooth. The method for generating an edge cut line for a correction device according to claim 1 or 2.

4. before adjusting the position of the attachment on the orthodontic appliance to the first position, the attachment is in a second position on the orthodontic appliance, the second position being a position of the attachment when an occlusal interference exists between the attachment and an antagonist of the first tooth; The method for generating an edge cut line for an orthodontic device according to claim 3 .

5. the priority of the first location is lower than or equal to the priority of the second location; The method for generating an edge cut line for an orthodontic device according to claim 4.

6. The priority of the location where the attachment is located is related to the function information of the attachment. The method for generating an edge cut line for an orthodontic device according to claim 5.

7. and if an occlusal interference exists between the attachment and the antagonist of the first tooth, adjusting the position of the attachment on the orthodontic appliance, the direction of the adjustment being toward the gingival margin. The method for generating an edge cut line for a correction device according to any one of claims 1 to 6.

8. and further including, prior to generating the orthodontic device edge cut line, no occlusal interference exists between the attachment and the antagonist of the first tooth. The method for generating an edge cut line for a correction device according to any one of claims 1 to 7.

9. The orthodontic device edge cut line is determined at a position a predetermined distance away from the position information of the second region. The method for generating an edge cut line for a correction device according to any one of claims 1 to 8.

10. The predetermined distance ranges between 0.2 mm and 2 mm. The method for generating an edge cut line for an orthodontic device according to claim 9.

11. The orthodontic device edge cut line extends along a first direction of the first tooth and covers at least one tooth or tooth gap adjacent to the at least one first tooth. The method for generating an edge cut line for a correction device according to any one of claims 1 to 10.

12. Displaying at least a portion of the dental impression; further comprising displaying at least one of the orthodontic device edge cut line, the attachment, and the orthodontic device. The method for generating an edge cut line for a correction device according to any one of claims 1 to 11.

13. obtaining a first command from a user, the first command being used to indicate desired position information of the attachment or desired position information of an edge of the corrective device; When generating a corrective device edge cut line based on the second region, the method further includes generating a first cut line based on the first command and the second region. The method for generating an edge cut line for a correction device according to any one of claims 1 to 5.

14. and further comprising a step of adjusting the generated first cutline to a second cutline in response to a second command from a user, the second command being used to indicate adjustment information for the first cutline, and the second cutline being used to generate a target orthotic device. The method for generating an orthodontic device edge cut line according to claim 13.

15. The second instruction is: updating location information of the attachment; and a target position of the first cut line after adjustment; The method for generating an edge cut line for a correction device according to claim 14, wherein the method is used to indicate at least one of the following.

16. A method for generating an orthodontic device edge cut line, comprising: obtaining a dental impression corresponding to at least one first tooth; identifying a second area corresponding to an attachment according to a first command from a user and the dental impression, the attachment being at least partially positioned on the orthodontic appliance corresponding to at least a portion of the teeth or dental gaps of at least one of the first teeth, the first command being used to indicate position information of the attachment; and generating an orthodontic device edge cut line based on the second region. A method for generating an orthodontic device edge cut line.

17. The orthodontic device edge cut line is At least a portion of the orthodontic device edge cut line is located below the first gum line. At least a part of the orthodontic device edge cut line intersects with the first gum line. At least a portion of the second region is located below the first gum line. At least a portion of the second region intersects the first gum line; and the first gum line includes the gum line of at least one of the first teeth and / or the gum line of at least a portion of at least one tooth adjacent to the at least one first tooth; The method for generating an edge cut line for a correction device according to claim 16, wherein at least one of the following is satisfied.

18. and further comprising the step of confirming that no occlusal interference exists between the attachment and the antagonist of the first tooth before generating the orthodontic appliance edge cut line. The method for generating an edge cut line for an orthodontic device according to claim 16 or 17.

19. The orthodontic device edge cut line is determined at a position a predetermined distance away from the position information of the second region. The method for generating an edge cut line for a correction device according to any one of claims 16 to 18.

20. The predetermined distance ranges between 0.2 mm and 2 mm. The method for generating an orthodontic device edge cut line according to claim 19.

21. The orthodontic device edge cut line extends along a first direction of the first tooth and covers at least one tooth or tooth gap adjacent to the at least one first tooth. The method for generating an edge cut line for a correction device according to any one of claims 16 to 20.

22. displaying at least a portion of the dental impression; and displaying at least one of the orthodontic device edge cut line, the attachment, and the orthodontic device. The method for generating an edge cut line for a correction device according to any one of claims 16 to 21.

23. An orthodontic appliance for attachment to teeth, comprising an orthodontic appliance body and an attachment, the attachment being disposed on the orthodontic appliance body; The edge of the correction device is determined based on the method for generating a correction device edge cut line according to any one of claims 1 to 15, or The edge of the correction device is determined based on the method for generating a correction device edge cut line according to any one of claims 16 to 22. Orthodontic device.

24. a computer-readable storage medium storing instructions that, when executed by a processor, cause a computing device to perform a method, the method comprising the method for generating a correction device edge cut line according to any one of claims 1 to 15; or The method includes a method for generating an orthodontic device edge cut line according to any one of claims 16 to 22. A computer-readable recording medium.

25. an orthodontic appliance comprising an orthodontic appliance body and an attachment disposed on the orthodontic appliance body, the orthodontic appliance body including a second region to which the attachment is attached, the second region being located partially below a first gum line of the tooth and partially above the first gum line of the tooth when the orthodontic appliance is attached to the tooth; Orthodontic device.

26. When the orthodontic appliance is attached to the teeth, the attachment is connected to a bottom surface of the second region and is partially located in a position corresponding to a region below the first gum line and partially located in a position corresponding to a region above the first gum line.

26. The orthodontic device of claim 25.

27. When the orthodontic device is attached to the teeth, the second region is located at a position corresponding to the crown or interdental space of at least one first tooth, and when the number of the first teeth is one, the second region is located at a position corresponding to the crown and gingiva of the first tooth, and when the number of the first teeth is multiple, the second region is located at a position corresponding to the crowns, gingiva, and interdental spaces of multiple first teeth.

26. The orthodontic device of claim 25.

28. When the orthodontic device is attached to the teeth, the attachment is at least partially positioned on the orthodontic device corresponding to at least a part of the tooth or dental gap of at least one first tooth, and when the number of the first tooth is one, the attachment is positioned corresponding to the crown and gum of the first tooth, and when the number of the first teeth is multiple, the attachment is positioned corresponding to the crowns, gums, and dental gaps of multiple first teeth.

26. The orthodontic device of claim 25.

29. The orthodontic device includes an orthodontic device edge cut line, the orthodontic device edge cut line being located below the first gum line only at the portion of the first tooth, and the orthodontic device edge cut line being substantially aligned with the first gum line at all portions of the other teeth.

29. The orthodontic device according to claim 27 or 28.

30. the orthodontic appliance includes an orthodontic appliance edge cut line, the orthodontic appliance edge cut line being located below a first gum line at a portion of the first tooth and at a portion of another tooth adjacent to the first tooth; 29. The orthodontic device according to claim 27 or 28.

31. the tooth includes a crown located above a first gum line and a gingiva located below the first gum line, the second region includes a first end corresponding to the crown and a second end corresponding to the gingiva, and when the orthodontic device is attached to the tooth, there is a first distance between the first end and the crown and a second distance between the second end and the gingiva, the first distance being greater than the second distance; 26. The orthodontic device of claim 25.

32. The second end is in close contact with the gums.

32. The orthodontic device of claim 31.

33. An orthodontic device comprising: an orthodontic device body; and an attachment disposed on the orthodontic device body, wherein the orthodontic device body comprises a second region to which the attachment is attached, wherein when the orthodontic device is attached to a tooth, the second region is adjacent to a first gum line of the tooth or intersects with the first gum line, and the second region comprises a first end and a second end that are opposite to each other in a direction perpendicular to the jaw plane, wherein a first distance is between the first end and the tooth and a second distance is between the second end and the tooth, and the first distance is greater than the second distance. Orthodontic device.

34. The orthodontic device body further includes a third region and a connecting region connecting the third region and the second region, the third region being in close contact with the crown of the tooth, and the connecting region forming a bend between the second region and the third region. The orthodontic device according to any one of claims 31 to 33.

35. the second region is a plane; 34. The orthodontic device of claim 25 or 33.

36. the angle between the plane of the second region and the jaw plane ranges from 60° to 90°; 36. The orthodontic device of claim 35.

37. A bottom surface of the attachment is connected to the second region, and the bottom surface covers a part or all of the second region.

34. The orthodontic device of claim 25 or 33.

38. the attachment is a towing hook, a towing hook, a tubular attachment or a slotted attachment; 34. The orthodontic device of claim 25 or 33.

39. the second region extends partially below the first gum line, the orthodontic device includes an orthodontic device edge cut line, and the predetermined distance between the orthodontic device edge cut line and the corresponding outer contour line of the edge of the second region ranges from 0.2 mm to 2 mm.

34. The orthodontic device of claim 25 or 33.

40. When the orthodontic device is attached to a tooth and engages with an opposing tooth, the attachment and the opposing tooth are spaced apart.

34. The orthodontic device of claim 25 or 33.

41. The second region is partially located below the first gum line of the tooth and partially located above the first gum line of the tooth, the second region is entirely located below the first gum line, or the second region is entirely located above the first gum line.

34. The orthodontic device of claim 33.

42. the tooth includes a crown located above a first gum line and a gingiva located below the first gum line, the first end corresponds to the crown, and the first gap is between the first end and the crown, and the second end corresponds to the gingiva, and the second gap is between the second end and the gingiva; 42. The orthodontic device of claim 41.

43. The second end is in close contact with the gums.

43. The orthodontic device of claim 42.

44. the second region extends partially below the first gum line, the orthodontic device includes an orthodontic device edge cut line, the orthodontic device edge cut line being located below the first gum line only in a portion of the second region, and another portion of the orthodontic device edge cut line being substantially coincident with the first gum line; 34. The orthodontic device of claim 33.

45. the second region extends partially below the first gum line, the orthodontic appliance includes an orthodontic appliance edge cut line, the orthodontic appliance edge cut line being located below the first gum line at a portion of the second region and at a portion of another tooth adjacent to the second region; 34. The orthodontic device of claim 33.

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