Accessory base station determination and display method and device, equipment, medium and appliance

Abstract

The invention discloses an accessory base station determination method, device, equipment, medium and appliance, the accessory base station is used for determining an accessory installation platform, the accessory installation platform is used for installing a traction accessory, and the accessory base station determination method comprises the following steps: obtaining a tooth model and a traction scheme of a patient; the tooth model of the patient is provided with an accessory abutment; determining a traction direction according to the traction scheme; according to the traction direction, characteristic parameters of the attachment base and / or characteristic parameters of the traction attachment are / is determined, so that the traction attachment correspondingly installed on the attachment base meets the treatment requirement of the traction scheme. According to the method for determining the accessory abutment, manual access adjustment is not needed, correction reality is fitted, the method can adapt to the changing oral cavity environment, and operability, accuracy and processing efficiency are all considered.

Description

Technical Field

[0001] The present invention relates to the technical field of oral appliances, and particularly to a method, device, equipment, medium and dental appliance for determining an attachment abutment. Background Art

[0002] With the development of society and the improvement of people's requirements for the quality of life, the maintenance of oral health, including oral hygiene and aesthetics, has gradually become the focus of people's attention. Tooth correction, especially the means of using shell-shaped oral appliances for tooth correction, has gradually been pursued by most people. In some special correction stages, additional traction attachments are required to cooperate with the current correction plan to achieve better correction effects.

[0003] In the prior art, it is proposed to construct various traction force directions by changing the angle of the traction attachment. However, in actual implementation, the setting method of the traction attachment and the attachment abutment cooperating with it and the consideration of the adaptability to the traction plan are ignored, resulting in the failure of the characteristic parameters such as the application position to meet the actual or treatment requirements, and the poor effect of the traction attachment for applying traction. Summary of the Invention

[0004] One of the purposes of the present invention is to provide a method for designing a dental appliance to solve the technical problems in the prior art that the traction force application plan requires manual intervention and adjustment and is divorced from the actual correction, cannot adapt to the changing oral environment, and has poor feasibility.

[0005] One of the purposes of the present invention is to provide a dental appliance.

[0006] One of the purposes of the present invention is to provide a dental appliance design system.

[0007] One of the purposes of the present invention is to provide a storage medium.

[0008] To achieve one of the above-mentioned invention purposes, an embodiment of the present invention provides a method for determining an attachment abutment. The attachment abutment is used to determine an attachment installation platform, and the attachment installation platform is used to install a traction attachment. The method for determining the attachment abutment includes: obtaining a dental model and a traction plan of a patient; the dental model of the patient is provided with an attachment abutment; determining a traction direction according to the traction plan; determining characteristic parameters of the attachment abutment and / or characteristic parameters of the traction attachment according to the traction direction, so that the traction attachment correspondingly installed on the attachment abutment meets the treatment requirements of the traction plan.

[0009] As a further improvement of an embodiment of the present invention, the characteristic parameters of the attachment abutment include at least one of the following: the type of the attachment abutment, the height of the attachment abutment, and the fixed position of the attachment abutment; the characteristic parameters of the traction attachment include at least one of the following: the type of the traction attachment correspondingly installed on the attachment abutment, the fixed position of the traction attachment.

[0010] As a further improvement of an embodiment of the present invention, the method includes: when the first condition is not satisfied, adjusting the characteristic parameters of the attachment abutment and / or the characteristic parameters of the traction attachment.

[0011] As a further improvement of an embodiment of the present invention, the first condition includes at least one of the following: the traction direction and the axis of the attachment abutment satisfy a predetermined range; the traction direction does not cause tooth interference.

[0012] As a further improvement of an embodiment of the present invention, the method includes: in the same dental arch coordinate system, associating characteristic points whose coordinates of the existing teeth fall within the traction direction, and determining that the traction direction causes tooth interference, where the associated teeth are at least one tooth corresponding to the traction direction.

[0013] As a further improvement of an embodiment of the present invention, the manner of adjusting the characteristic parameters includes at least one of the following: adjusting the target position on the target tooth corresponding to the attachment abutment; adjusting the target position on the target tooth corresponding to the traction attachment.

[0014] As a further improvement of an embodiment of the present invention, the manner of adjusting the characteristic parameters includes: adjusting the target tooth or the target tooth gap corresponding to the attachment abutment; determining the fixed position of the attachment abutment on the adjusted target tooth.

[0015] As a further improvement of an embodiment of the present invention, the manner of adjusting the characteristic parameters includes at least one of the following: adjusting the size of the attachment abutment in the direction perpendicular to the buccal surface of the corresponding tooth to adjust the height of the attachment abutment; adjusting the position of the attachment abutment in the direction perpendicular to the buccal surface of the corresponding tooth to adjust the height of the attachment abutment; adjusting the fixed position of the traction attachment to other teeth near the current tooth.

[0016] To achieve one of the above-mentioned invention purposes, an embodiment of the present invention provides a tooth orthodontic appliance, and the tooth orthodontic appliance is provided with an attachment mounting platform for mounting a traction attachment, and the attachment mounting platform is prepared based on the method for determining an attachment abutment described in any one of the above technical solutions.

[0017] As a further improvement of an embodiment of the present invention, the attachment mounting platform includes at least one of the following characteristics: the top surface of the attachment mounting platform protrudes from the teeth; the top surface of the attachment mounting platform protrudes from the surface of the adjacent tooth gap after filling the undercut; the top surface of the attachment mounting platform is provided with an adhesive retention strengthening portion; a part of the inner peripheral surface of the attachment mounting platform has a draft angle; the peripheral surface of the attachment mounting platform has a reinforcing rib along the axial direction.

[0018] As a further improvement of an embodiment of the present invention, the force direction on the top surface of the attachment installation platform is substantially parallel to the traction direction of the traction attachment.

[0019] To achieve one of the above-mentioned invention purposes, an embodiment of the present invention provides a display method, including: displaying a tooth model, and at least one of the following: displaying an attachment abutment according to characteristic parameters, where the characteristic parameters are determined based on the method for determining an attachment abutment described in any of the above technical solutions; displaying a traction attachment according to characteristic parameters, where the characteristic parameters are determined based on the method for determining an attachment abutment described in any of the above technical solutions; displaying an attachment installation platform according to characteristic parameters, where the characteristic parameters are determined based on the method for determining an attachment abutment described in any of the above technical solutions.

[0020] As a further improvement of an embodiment of the present invention, the method includes: displaying a virtual connector in the same dental arch coordinate system, and the virtual connector extends along the traction direction.

[0021] To achieve one of the above-mentioned invention purposes, an embodiment of the present invention provides a device for determining an attachment abutment, including: a first module for obtaining a tooth model of a patient and a traction plan, where the tooth model of the patient is provided with an attachment abutment; a second module for determining a traction direction according to the traction plan; and a third module for determining characteristic parameters of the attachment abutment and / or characteristic parameters of the traction attachment according to the traction direction, so that the traction attachment correspondingly installed on the attachment abutment meets the treatment requirements of the traction plan.

[0022] To achieve one of the above-mentioned invention purposes, an embodiment of the present invention provides an electronic device, including a processor, a memory, and a communication bus, characterized in that the processor and the memory complete communication with each other through the communication bus; the memory is used for storing an application program; and the processor is used for implementing the steps of the method for determining an attachment abutment described in any of the above technical solutions, or implementing the steps of the display method described in any of the above technical solutions when executing the application program stored on the memory.

[0023] To achieve one of the above-mentioned invention purposes, an embodiment of the present invention provides a storage medium, on which an application program is stored, and when the application program is executed, the steps of the method for determining an attachment abutment described in any of the above technical solutions, or the steps of the display method described in any of the above technical solutions are implemented.

[0024] Compared with the prior art, the method for designing a tooth orthodontic appliance provided by the present invention can make the determined characteristics related to the traction attachment conform to the actual situation of the patient and have higher practicability by obtaining a tooth model and determining the characteristic parameters of the attachment base and / or the characteristic parameters of the traction attachment accordingly; by determining the traction direction and determining the relevant characteristic parameters accordingly, problems that may occur between the traction plan itself and the teeth can be excluded to determine the characteristic parameters, which has higher operability and can achieve risk elimination; the process of determining the characteristic parameters takes into account the attachment base, which helps to improve the speed and accuracy of the process of determining the characteristic parameters that meet the treatment requirements. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of an electronic device in an embodiment of the present invention.

[0026] Figure 2 is a schematic structural diagram of a device for determining an attachment base in an embodiment of the present invention.

[0027] Figure 3 is a schematic diagram of the steps of a display method in an embodiment of the present invention.

[0028] Figure 4 is a schematic structural diagram of a tooth model, an attachment base, an attachment installation platform, and a traction attachment from a first perspective in an embodiment of the present invention.

[0029] Figure 5 is a schematic structural diagram of a tooth model, an attachment base, and an attachment installation platform from a second perspective in an embodiment of the present invention.

[0030] Figure 6 is a schematic structural diagram of a tooth model, an attachment base, an attachment installation platform, and a traction attachment from a third perspective in an embodiment of the present invention.

[0031] Figure 7 is a schematic structural diagram of an attachment base from a fourth perspective in an embodiment of the present invention.

[0032] Figure 8 is a schematic structural diagram of an attachment base from a fifth perspective in an embodiment of the present invention.

[0033] Figure 9 is a schematic diagram of the steps of a method for determining an attachment base in an embodiment of the present invention.

[0034] Figure 10 is a schematic structural diagram of a traction attachment in an embodiment of the present invention.

[0035] Figure 11 is a schematic diagram of the traction direction of a traction attachment in an embodiment of the present invention.

[0036] Figure 12 It is a schematic structural view of another traction attachment from the sixth perspective in an embodiment of the present invention.

[0037] Figure 13 It is a schematic view of the traction direction of another traction attachment from the seventh perspective in an embodiment of the present invention.

[0038] Figure 14 It is a schematic view of the traction direction of another traction attachment from the eighth perspective in an embodiment of the present invention.

[0039] Figure 15 It is a schematic structural view of a tooth model, an attachment base, and a traction attachment in one case in an embodiment of the present invention.

[0040] Figure 16 It is a schematic structural view of a tooth model, an attachment base, and a traction attachment in another case in an embodiment of the present invention.

[0041] Figure 17 It is a schematic structural view of a tooth model, an attachment base, and a traction attachment when implementing the method for determining the attachment base in an embodiment of the present invention.

[0042] Figure 18 It is a partial step schematic view of an embodiment of the method for determining the attachment base in an embodiment of the present invention. Detailed Embodiment

[0043] The present invention will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these embodiments is included within the protection scope of the present invention.

[0044] It should be noted that the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such a process, method, article, or device. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0045] The main idea of the present invention is to determine the characteristic parameters of the attachment base and / or the characteristic parameters of the traction attachment based on the patient's tooth model in combination with the traction plan, so as to ensure that the traction direction defined by the traction plan can be implemented on the tooth model, facilitating the fulfillment of the treatment requirements and the achievement of the treatment effect.

[0046] Although the present invention defines a "traction attachment", in fact, the present invention is not limited to adjusting the characteristic parameters of the traction attachment or the characteristic parameters of its related structures (attachment mounting platform, attachment base).

[0047] On the one hand, the traction is not limited to "pulling" and "dragging" actions. For example, Figure 4 in [a certain situation], the force applied by the connecting member at the first traction member 31 in the direction approaching the second traction member 32; in other embodiments, the traction may also be "pushing" and "squeezing" actions. For example, Figure 4 in [a certain situation], the force applied by the connecting member at the first traction member 31 in the direction away from the second traction member 32.

[0048] On the other hand, the basic principle and purpose of the present invention are to ensure that the orthodontic attachment (for example, the traction attachment) can act normally in its working direction (for example, the traction direction). Based on this, any situation where there is a need to determine whether the working direction defined by a certain working plan (for example, the traction plan) can be normally implemented on the patient's tooth model through the orthodontic attachment can be determined by implementing any of the technical solutions provided later.

[0049] Based on this, any content related to the concept of "traction" in the present invention hereinafter can be replaced by "working" or "orthodontic treatment".

[0050] The following will further elaborate on various embodiments, technical principles, and corresponding technical effects of the present invention with reference to the accompanying drawings.

[0051] An embodiment of the present invention provides a storage medium, which may specifically be a computer-readable storage medium. The storage medium can be set in a computer and store an application program. At this time, the storage medium can be any available medium that the computer can access data, or it can be a storage device such as a server or a data center that includes one or more integrated available media. The available medium can be a magnetic medium such as a floppy disk, a hard disk, or a magnetic tape, or an optical medium such as a DVD (Digital Video Disc, high-density digital video disc), or a semiconductor medium such as an SSD (Solid State Disk, solid-state drive).

[0052] In one embodiment, when the application program is executed, a method for determining an attachment base is implemented. In one technical solution, the method for determining the attachment base may include at least one of the following steps:

[0053] Obtain the patient's tooth model and the traction plan, and the patient's tooth model is provided with an attachment base;

[0054] Determine the traction direction according to the traction plan;

[0055] Determine the characteristic parameters of the attachment abutment and / or the characteristic parameters of the traction attachment according to the traction direction, so that the traction attachment correspondingly installed on the attachment abutment meets the treatment requirements of the traction plan;

[0056] The attachment abutment is used to determine the attachment installation platform;

[0057] The attachment installation platform is used to install the traction attachment.

[0058] The stored content of the storage medium can also be configured based on the method for determining the attachment abutment in any of the technical solutions provided later.

[0059] In one embodiment, when the application program is executed, a display method is implemented. In one technical solution, the display method may include at least one of the following steps:

[0060] Display the tooth model;

[0061] Display the attachment abutment according to the characteristic parameters, where the characteristic parameters are determined based on a method for determining the attachment abutment;

[0062] Display the traction attachment according to the characteristic parameters, where the characteristic parameters are determined based on a method for determining the attachment abutment;

[0063] Display the attachment installation platform according to the characteristic parameters, where the characteristic parameters are determined based on a method for determining the attachment abutment.

[0064] The stored content of the storage medium can also be configured based on the display method in any of the technical solutions provided later.

[0065] One embodiment of the present invention provides an electronic device, as Figure 1 shown. The electronic device can be a computer, a mobile phone, a tablet computer, etc., and the present invention does not limit the specific type of the electronic device.

[0066] The electronic device includes at least one processor, at least one memory, and a communication bus. The at least one processor and the at least one memory communicate with each other through the communication bus.

[0067] The memory is used to store the application program.

[0068] The processor is used to implement the steps of a method for determining the attachment abutment when executing the application program stored in the memory. In one embodiment, the method for determining the attachment abutment may include at least one of the following steps:

[0069] Obtain the tooth model of the patient and the traction plan, and the tooth model of the patient is provided with an attachment abutment;

[0070] According to the traction plan, determine the traction direction;

[0071] Determine the characteristic parameters of the attachment abutment and / or the characteristic parameters of the traction attachment according to the traction direction, so that the traction attachment correspondingly installed on the attachment abutment meets the treatment requirements of the traction plan;

[0072] The attachment abutment is used to determine the attachment installation platform;

[0073] The attachment installation platform is used to install the traction attachment.

[0074] The method for determining the attachment abutment can also be configured based on any of the technical solutions provided later.

[0075] The processor is used to implement a display method when executing the application program stored in the memory. In one technical solution, the display method may include at least one of the following steps:

[0076] Display the tooth model;

[0077] Display the attachment abutment according to the characteristic parameters, where the characteristic parameters are determined based on a method for determining the attachment abutment;

[0078] Display the traction attachment according to the characteristic parameters, where the characteristic parameters are determined based on a method for determining the attachment abutment;

[0079] Display the attachment installation platform according to the characteristic parameters, where the characteristic parameters are determined based on a method for determining the attachment abutment.

[0080] The display method can also be configured based on any of the technical solutions provided later.

[0081] The communication bus may include any number of buses and bridge circuits. In some embodiments, in addition to connecting the processor and the memory, the communication bus may also be used to connect peripheral devices or other peripheral circuits.

[0082] An embodiment of the present invention provides a device for determining an attachment abutment, as Figure 2 shown. The device for determining the attachment abutment includes at least one of the following structures:

[0083] The first module is used to obtain the tooth model of the patient and the traction plan, and the tooth model of the patient is provided with an attachment abutment;

[0084] The second module is used to determine the traction direction according to the traction plan;

[0085] The third module is used to determine the characteristic parameters of the attachment abutment and / or the characteristic parameters of the traction attachment according to the traction direction, so that the traction attachment correspondingly installed on the attachment abutment meets the treatment requirements of the traction plan.

[0086] The use of the device for determining the attachment abutment can also be configured based on the method for determining the attachment abutment in any of the technical solutions provided hereinafter. Specifically, based on the association relationship between steps, relevant steps can be implemented in the same or different modules.

[0087] The above device or its modules and units can specifically be implemented by computer chips or entities, or by products with corresponding functions. When describing the above device, although it is divided into multiple modules for separate description, in other embodiments, the functions of the modules can also be implemented in the same or multiple software or hardware.

[0088] An embodiment of the present invention provides a display method, which is used to output a display to a display unit of at least one device body. The device body can be an electronic device such as a computer or a mobile phone, or can also be a virtual reality (VR) device, an augmented reality (AR) device, a mixed reality (MR) device, etc.

[0089] As Figure 3 shown, in one embodiment, the display method includes step P1: displaying a tooth model.

[0090] The tooth model can be an actual model obtained by collecting the oral conditions of a patient, or can also be a standard model used for teaching and experiments.

[0091] In one embodiment, the display method further includes step P2. The step P2 includes at least one of the following steps:

[0092] Displaying an attachment abutment according to characteristic parameters;

[0093] The characteristic parameters of the attachment abutment are determined based on a method for determining the attachment abutment;

[0094] Displaying a traction attachment according to characteristic parameters;

[0095] The characteristic parameters of the traction attachment are determined based on a method for determining the attachment abutment;

[0096] Displaying an attachment installation platform according to characteristic parameters;

[0097] The characteristic parameters of the attachment installation platform are determined based on a method for determining the attachment abutment.

[0098] Specifically, the tooth model, and at least one of the attachment abutment, the traction attachment, and the attachment installation platform can be displayed in the same dental coordinate system. In this way, the relative positions and shapes can be visually distinguished to facilitate understanding the current situation and / or designing a treatment plan.

[0099] In one embodiment, if Figure 4 As shown, the accessory base 4 is shown on one side of the outer circumference of the tooth model 100 .

[0100] The accessory mounting platform 2 may be any structure for mounting the traction accessory 3. In one embodiment, the accessory base 4 actually participates in the traction process of the traction accessory 3 and serves as a retainer bonded to the tooth surface. In this case, the accessory mounting platform may refer to the surface of the accessory base 4 for mounting the traction accessory 3. Figure 4 As shown, the traction accessory 3 is installed on the dental appliance 200, and the corresponding part of the dental appliance 200 forms the accessory installation platform 2.

[0101] In the latter embodiment, the accessory mounting platform 2 and the dental appliance 200 are shown on the side of the accessory base 4 facing away from the dental model 100 .

[0102] The present invention defines it as a "platform" mainly because the surface on which the traction accessory 3 is installed is a flat surface; in other embodiments, the surface on the accessory mounting platform 2 for cooperating with the traction accessory 3 may also be a curved surface.

[0103] In one embodiment, the traction attachment 3 is displayed on the side of the attachment base 4 facing away from the tooth model 100 .

[0104] In some embodiments, the accessory base 4 with fixed morphological features can be embedded in the tooth model 100 and integrated therewith. In this case, the depth (dashed line portion) of the accessory base 4 embedded in the tooth model 100 is not displayed, and only the Figure 4 And in this embodiment, the display method specifically includes: displaying a tooth model, wherein the tooth model includes an integrally formed accessory base.

[0105] When the accessory mounting platform 2 is located at the dental appliance 200 , the portion of the accessory mounting platform 2 and the accessory base 4 located between the traction accessory 3 and the tooth model 100 can be displayed as a matching relationship of a male and female mold.

[0106] In one embodiment, the operator can determine the accessory base (determine characteristic parameters of the traction accessory, determine characteristic parameters of the accessory base) based on the tooth model, the traction accessory, and the accessory base through manual adjustment one by one or one-time manual adjustment. In another embodiment, the adjustment can be performed automatically.

[0107] In one embodiment, the method for determining an accessory base may include at least one of the following steps:

[0108] Obtaining a dental model of the patient and a distraction plan, the dental model of the patient being provided with an accessory abutment;

[0109] Determine the traction direction according to the traction plan;

[0110] Determine the characteristic parameters of the attachment abutment and / or the characteristic parameters of the traction attachment according to the traction direction, so that the traction attachment correspondingly installed on the attachment abutment meets the treatment requirements of the traction plan;

[0111] The attachment abutment is used to determine the attachment installation platform;

[0112] The attachment installation platform is used to install the traction attachment.

[0113] The method for determining the attachment abutment can also be configured based on any of the technical solutions provided later.

[0114] In one embodiment, the method for determining the attachment abutment includes the steps of: when the first condition is not met, adjusting the characteristic parameters of the attachment abutment and / or the characteristic parameters of the traction attachment.

[0115] In one embodiment, the first condition includes that the traction direction does not cause tooth interference.

[0116] In one embodiment, the method for determining the attachment abutment includes the steps of: determining whether the first condition is met according to the virtual connector.

[0117] Correspondingly, in one embodiment, the display method includes: displaying the virtual connector in the same dental coordinate system, and the virtual connector extends along the traction direction.

[0118] The virtual connector is used to simulate the application path of the actual traction force. The virtual connector is used to simulate the actual traction member (for example, an elastic member).

[0119] In one embodiment, it is possible to determine whether tooth interference occurs based on the positional relationship between the virtual connector and the teeth.

[0120] This positional relationship can be judged by manual observation. After the display of the virtual connector is output, it is possible to determine whether tooth interference occurs based on whether the virtual connector overlaps with the teeth at the interface.

[0121] If as Figure 15 shown, the virtual connector L does not overlap with the teeth, especially the associated teeth located between the two traction attachments in the traction direction D, then it is determined that the virtual connector L does not interfere with the associated teeth or the interference amount is within an acceptable range. In this way, it can be indicated that the current traction direction does not cause tooth interference; it can be indicated that the first condition is met (in other embodiments, the first condition can include not only no tooth interference); it can be indicated that arranging the traction member in the current traction direction does not cause interference and can apply the expected traction force.

[0122] If as Figure 16As shown, if the virtual connecting member L overlaps with the teeth, especially the associated teeth located between the two traction attachments in the traction direction D, it is determined that the virtual connecting member L interferes with the associated teeth. In this way, it can indicate that the current traction direction causes tooth interference; it can indicate that the first condition is not met; it can indicate that arranging the traction member in the current traction direction causes interference and the expected traction force cannot be applied.

[0123] The above judgment process can be achieved by human eye recognition. In particular, the operator can observe the distance between the virtual connecting member and the teeth to determine whether it is determined to be interference. In some embodiments, even if there is no overlap, it may be determined to be interference due to the thickness of the appliance or other factors; in some embodiments, even if there is overlap, if the amount of interference or the amount causing the actual traction member to deflect is within the allowable error range, it may be determined not to be interference.

[0124] The above judgment process can be automatically achieved. In one embodiment, the method for determining the attachment base includes the steps of: in the same dental coordinate system, when there are characteristic points on the associated teeth whose coordinates fall within the traction direction, it is determined that the traction direction causes tooth interference, and the associated teeth are at least one tooth corresponding to the traction direction.

[0125] In one embodiment, the method for determining the attachment base includes the steps of: obtaining the characteristic parameters of the associated teeth, and when there are characteristic points on the associated teeth whose coordinates fall within the virtual connecting member in the same coordinate system, it is determined that the traction direction causes tooth interference.

[0126] The virtual connecting member is displayed on the side of the attachment base facing away from the tooth model; the virtual connecting member is displayed on the side of the shell-shaped appliance or the attachment installation platform facing away from the tooth model.

[0127] When providing two or more mutually cooperating traction attachments, the virtual connecting member is displayed at the position between the traction attachments.

[0128] An embodiment of the present invention provides a tooth appliance.

[0129] The installation environment of the tooth appliance can be the actual oral cavity inside the human body, or a simulated oral solid model or a three-dimensional oral model. The tooth appliance can be an actual appliance, or a three-dimensional model or a solid model of the appliance.

[0130] At the functional and usage levels, the tooth appliance is interpreted as a device that cooperates with the teeth and provides a corrective function. Specifically, the tooth appliance can be a shell-shaped appliance, a retainer, etc. that act on the dental arch, or a device for training other intraoral tissues such as orofacial muscle functions.

[0131] Such as Figures 4 to 6As shown, the tooth aligner 200 is provided with an attachment mounting platform 2 for mounting the traction attachment 3.

[0132] Figure 4 The mating state of the tooth aligner 200 with several teeth in the tooth model 100 is shown.

[0133] Figure 4 The formation of a first attachment base 41 and a second attachment base 42 at two teeth in the tooth model 100 is shown.

[0134] Figure 4 The formation of a first attachment mounting platform 21 and a second attachment mounting platform 22 at two teeth in the tooth model 100 is shown.

[0135] The first attachment base 41 is used to determine the first attachment mounting platform 21; the second attachment base 42 is used to determine the second attachment mounting platform 22.

[0136] Figure 4 The formation of a first traction attachment 31 and a second traction attachment 32 at two teeth in the tooth model 100 is shown.

[0137] The first attachment mounting platform 21 is used to mount the first traction attachment 31; the second attachment mounting platform 22 is used to mount the second traction attachment 32.

[0138] Figure 4 The traction connecting member 5 located between the first traction attachment 31 and the second traction attachment 32 during the traction action is shown.

[0139] Figure 5 The mating state of the tooth aligner 200 with a single tooth in the tooth model 100 is shown, specifically from the perspective of the left or right side in the mesiodistal direction of the tooth.

[0140] Figure 5 The implementation mode in which the attachment mounting platform 2 and the attachment base 4 are both arranged on the buccal or labial side of the tooth is shown.

[0141] Figure 6 The mating state of the tooth aligner 200 with a single tooth in the tooth model 100 is shown, specifically from the perspective above or below the long axis direction of the tooth.

[0142] Figure 6 The traction direction D corresponding to the traction attachment 3 is shown.

[0143] The inner peripheral surface of the tooth aligner 200 fits the tooth model. For the posterior tooth area of the tooth model, the inner peripheral surface of the tooth aligner 200 fits at least the buccal surface of the tooth model. For the anterior tooth area of the tooth model, the inner peripheral surface of the tooth aligner 200 fits at least the labial surface of the tooth model.

[0144] The attachment installation platform 2 is continuous and smoothly transitions with other parts of the tooth orthodontic appliance 200. If the attachment installation platform 2 is defined as the overall body structure, the attachment installation platform 2 is a body-like structure that bulges relative to other parts; the bulging direction can especially be the direction away from the inner peripheral surface of the tooth orthodontic appliance 200. If the attachment installation platform 2 is defined as the side surface for installing the traction attachment 3, the attachment installation platform 2 is located at a position relatively farther from the inner peripheral surface of the tooth orthodontic appliance 200 compared to other parts. With such a setting, when the traction attachment 3 is installed, the traction attachment 3 is separated from the tooth model 100 by a certain distance.

[0145] The above "away from" and "farther from" mean that at least one part of the attachment installation platform 2 has the above positional relationship, and it does not require that all parts of the attachment installation platform 2 uniformly have the above positional relationship. When the positional relationship between each part of the attachment installation platform 2 and the tooth orthodontic appliance 200 is non-uniform, at least provide an inclination angle relative to the buccal surface, labial surface or other parts of the tooth orthodontic appliance 200 (such as Figure 6 shown). Such an inclination angle can be used to adjust the traction direction of the traction attachment 3 and can be used to achieve the expected traction scheme.

[0146] The attachment installation platform is prepared based on a method for determining the attachment base.

[0147] The method for determining the attachment base is used to determine the characteristic parameters of the attachment base. The attachment installation platform in the tooth orthodontic appliance is prepared according to the characteristic parameters of the attachment base.

[0148] The characteristic parameters of the attachment base define the state of the attachment base, and the attachment installation platform conforms to the attachment base in this state to determine its own state. The above process can be based on the pressing of the attachment base to form a matching attachment installation platform.

[0149] The attachment installation platform defines a receiving cavity, and at least part of the attachment base can cooperate with the receiving cavity. The cooperation methods include being arranged in the receiving cavity; at least partially, the outer peripheral surface of the attachment base fits with the inner peripheral surface of the receiving cavity.

[0150] The above-mentioned fitting does not limit to complete abutment, but also includes corresponding morphological concavities and convexities.

[0151] The method for determining the attachment base is used to determine the characteristic parameters of the traction attachment. The attachment installation platform in the tooth orthodontic appliance is prepared according to the characteristic parameters of the traction attachment.

[0152] The characteristic parameters of the traction attachment define the type or setting attitude of the traction attachment.

[0153] The attachment installation platform is configured to be in a state matching the type of the traction attachment. For example, if the installation surface of the traction attachment is a plane or a curved surface, then configure the installation surface of the attachment installation platform to be the corresponding shape.

[0154] The attachment installation platform is configured at a position corresponding to the setting position of the traction attachment.

[0155] The attachment installation platform is configured to have an inclination angle corresponding to the setting angle α of the traction attachment.

[0156] In one implementation, the method for determining the attachment base can include at least one of the following steps:

[0157] Obtain the tooth model of the patient and the traction plan, and the attachment base is provided on the tooth model of the patient;

[0158] Determine the traction direction according to the traction plan;

[0159] Determine the characteristic parameters of the attachment base and / or the characteristic parameters of the traction attachment according to the traction direction, so that the traction attachment correspondingly installed on the attachment base meets the treatment requirements of the traction plan;

[0160] The attachment base is used to determine the attachment installation platform;

[0161] The attachment installation platform is used to install the traction attachment.

[0162] The method for determining the attachment base can also be configured based on any of the technical solutions provided later.

[0163] In one implementation, continuing as Figures 4 to 6 shown, the attachment installation platform includes at least one of the following characteristics.

[0164] The first characteristic is that the top surface of the attachment installation platform 2 protrudes from the teeth. The attachment installation platform 2 does not strictly conform to the tooth model, but is convexly arranged in a direction away from the tooth model.

[0165] The top surface is the surface on the side of the attachment installation platform 2 facing away from the tooth model; the top surface is at least part of the outer peripheral surface of the attachment installation platform 2; the top surface is used to install the traction attachment 3.

[0166] The second characteristic is that the top surface of the attachment installation platform 2 protrudes from the filled occlusal surface of the adjacent space.

[0167] The filled occlusal surface of the adjacent space refers to, for the tooth model, using materials or simulation to fill the occlusal surfaces near the tooth necks of the remaining teeth and on the mucosal tissues that may prevent the teeth from being seated.

[0168] Occlusal surface refers to the area on the tooth crown between the observation line and the gum, or the area below the tissue protrusion. Occlusal surfaces can be divided into tooth occlusal surfaces and tissue occlusal surfaces. Occlusal surfaces can also be divided into available occlusal surfaces and unfavorable occlusal surfaces.

[0169] The accessory mounting platform 2 and the corresponding accessory base 4 and the traction accessory 3 can be arranged at the interproximal space position of the teeth in the tooth model 100 .

[0170] The top surface of the accessory mounting platform 2 is protruding compared to the interproximal surface of the tooth after the undercut is filled.

[0171] The third feature is that a portion of the inner peripheral surface of the accessory mounting platform 2 has a draft angle.

[0172] Since the accessory mounting platform 2 is determined based on the accessory base 4, Figure 7 Take this as an example Figures 4 to 6 As shown, the structural features of the accessory mounting platform 2 are described from the perspective of the accessory base 4.

[0173] Figure 7 The figure shows the shape of the outer four sides of the accessory base 4 at a viewing angle. The area (or length in the figure) of the relative upper side of the accessory base 4 shown in the figure is smaller than the area (or length in the figure) of the relative lower side. The left and right sides of the accessory base 4 form an angle with respect to the vertical direction. The angle is used for molding and demolding when preparing the dental appliance 200, so the angle is defined as the draft angle θ.

[0174] The accessory mounting platform 2 formed based on the accessory base 4 also has the draft angle θ. In this way, during the preparation of the dental appliance 200, the accessory mounting platform 2 can be easily formed and easily removed from the accessory base 4.

[0175] In one embodiment, the draft angle θ is 30 degrees. Of course, in other embodiments, it may be other values ​​less than 30 degrees.

[0176] In one embodiment, the accessory base 4 is connected to the tooth model 100 at its relatively lower side (larger in area). Based on this, the accessory mounting platform 2 formed has the same inner peripheral surface inclination direction; the width (or radial dimension) of the accessory mounting platform 2 gradually decreases from the inner peripheral surface opening to the relatively upper side surface (e.g., top surface).

[0177] In addition, in one embodiment, the lower side (e.g., bottom surface) of the accessory base 4 is immersed in the tooth or in the interproximal space surface after the undercut is filled. In this way, when preparing the integrated tooth model 100 and the accessory base 4, 3D printing and other technologies can be used without leaving the printed material hanging in the air.

[0178] In one embodiment, the angle between the projection line of the axis of the accessory mounting platform 2 on the surrounding surfaces of the accessory mounting platform 2 and the axis of the accessory mounting platform 2 is configured as the draft angle θ.

[0179] In one embodiment, the angle between the projection line of the axis of the accessory base 4 on the surrounding surfaces of the accessory base 4 and the axis of the accessory base 4 is configured as the draft angle θ.

[0180] In one embodiment, the accessory base 4 is configured in a stepped shape. In one embodiment, the upper bottom surface and the lower bottom surface of the accessory base 4 are rectangular; in one embodiment, the upper bottom surface and the lower bottom surface of the accessory base 4 are circular or elliptical.

[0181] The fourth feature is that the surrounding surfaces of the accessory mounting platform 2 have reinforcing ribs along the axial direction.

[0182] Since the accessory mounting platform 2 is determined based on the accessory base 4, Figure 7 Take this as an example Figures 4 to 6 As shown, the structural features of the accessory mounting platform 2 are described from the perspective of the accessory base 4.

[0183] The reinforcing ribs are arranged along the axis direction, and in particular, can be arranged along the axis direction of the accessory base 4. In one embodiment, the axis of the accessory mounting platform 2 is consistent with the axis of the accessory base 4.

[0184] Reinforcement ribs 4a are formed on the four sides of the accessory base 4, so when the accessory mounting platform 2 is determined based on this, reinforcement ribs can be formed on the inner four sides and / or the outer four sides of the accessory mounting platform 2 accordingly.

[0185] The reinforcing ribs are used to improve the structural strength of the accessory mounting platform 2 .

[0186] The fifth feature is that the top surface of the accessory mounting platform 2 is provided with an adhesive fixing reinforcement portion.

[0187] Since the accessory mounting platform 2 is determined based on the accessory base 4, Figure 8 Take this as an example Figures 4 to 6 As shown, the structural features of the accessory mounting platform 2 are described from the perspective of the accessory base 4.

[0188] In one embodiment, the adhesive retention reinforcement portion of the accessory mounting platform 2 is used to mount the traction accessory 3 to enhance the stability of the connection between the two.

[0189] In one embodiment, a structure corresponding to the bonding and retaining reinforcement portion is provided at the accessory base 4, which is used to form the bonding and retaining reinforcement portion of the accessory mounting platform 2. In a possible case, the corresponding structure at the accessory base 4 is used for the relative positional relationship between the accessory mounting platform 2, the dental appliance 200 and the accessory base 4, and the tooth model 100.

[0190] The top surface of the accessory base 4 is provided with a corresponding structure for forming the bonding and retention reinforcement portion.

[0191] In one embodiment, the structure includes a plurality of grooves 4b arranged at intervals. In another embodiment, the structure includes a plurality of protrusions 4c arranged at intervals.

[0192] In one embodiment, the grooves or protrusions extend in an S shape to enhance the retention ability of the corresponding adhesive retention strengthening portion.

[0193] In one embodiment of the present invention, the direction of force on the top surface of the attachment mounting platform 2 is substantially parallel to the traction direction of the traction attachment 3.

[0194] When configuring the attachment mounting platform 2, the direction of force on the top surface can be determined according to the traction direction, and the top surface configuration of the attachment mounting platform 2 can be determined according to this direction of force.

[0195] In one embodiment, the inclination angle α of the top surface of the attachment mounting platform 2 is consistent with the direction of force.

[0196] In one embodiment, the included angle between the direction of force and the traction direction is less than or equal to 10 degrees. The so-called "substantially parallel" can be interpreted as an included angle less than or equal to 10 degrees.

[0197] The top surface of the attachment mounting platform 2 can be the surface of the attachment mounting platform 2 that is relatively far from the tooth after the tooth aligner 200 cooperates with the tooth model 100.

[0198] The attachment mounting platform 2 bulges toward one side of the tooth aligner 200, and the top surface of the bulging portion is the top surface of the attachment mounting platform 2.

[0199] The attachment mounting platform 2 is used to form a receiving cavity, and the bottom surface (the side surface away from the opening) of the receiving cavity is the top surface of the attachment mounting platform 2.

[0200] The direction of force refers to the direction of the force reflected at the attachment mounting platform 2 when a force is applied to the traction attachment 3 when the traction attachment 3 is installed on the attachment mounting platform 2.

[0201] In one embodiment, the traction attachment 3 is mounted on the top surface of the attachment mounting platform 2 through a side surface, and the direction of force on the top surface of the attachment mounting platform 2 is substantially consistent with the direction of force on this side surface. Therefore, the direction of force on this side surface of the traction attachment 3 can also be adjusted to be substantially parallel to the traction direction.

[0202] As Figure 9 shown, one embodiment of the present invention provides a method for determining an attachment abutment.

[0203] The application program or instructions corresponding to the method for determining the attachment abutment can be carried on the above-mentioned electronic device, the device for determining the attachment abutment and / or the storage medium, or can be carried on the carrier of the display method, or carried on the carrier for implementing the preparation of the dental appliance, so as to achieve the corresponding technical effects.

[0204] The method for determining the attachment abutment may include the following steps.

[0205] Step S1, obtaining the tooth model and the traction plan of the patient.

[0206] The tooth model of the patient may be an actual tooth model directly reflecting the actual tooth condition of the patient; or it may be a tooth model determined by an operator (such as a doctor, etc.) according to requirements.

[0207] The tooth model of the patient is not limited to including complete dentition information and is not limited to including all teeth. It may, as Figure 4 shown, include multiple key teeth that need to be adjusted according to the treatment requirements; or it may, as Figure 5 and Figure 6 shown, only include one tooth for analysis.

[0208] The traction plan refers to which tooth or teeth should be tractioned, in which direction or directions the target teeth should be tractioned, at what position of the target teeth the traction should be applied, at what inclination angle the target teeth should be tractioned, and / or what traction force should be applied to the target teeth based on the treatment requirements. The content included in the traction plan can be determined according to factors such as the actual tooth condition and the maxillofacial development condition.

[0209] The traction plan may be determined by the operator through successive manual adjustments or one-time manual adjustments; or the adjustments may be implemented automatically.

[0210] The obtaining may represent any means that enables the tooth model and the traction plan to exist at the carrier executing the method for determining the attachment abutment. For example, the above-mentioned tooth model and traction plan may be obtained or received from the outside, or the above-mentioned tooth model and traction plan may be called from the internal storage; or the tooth model and traction plan may be obtained after a certain data processing. The obtaining described in this article can be interpreted as above, and will not be elaborated below.

[0211] The tooth model of the patient is provided with an attachment abutment.

[0212] In one implementation manner, the tooth model is provided with an attachment abutment during initialization. The tooth model and the attachment abutment may be arranged separately or integrally. When implementing the step of confirming the characteristic parameters of the attachment abutment, the adjustment can be based on the initial attachment abutment.

[0213] In one implementation, the dental model is not provided with an attachment abutment during initialization, and there is a stage in the process of implementing the method for determining the attachment abutment provided by the present invention where the dental model is provided with an attachment abutment. The dental model and the attachment abutment can be arranged separately or integrally. When implementing the step of confirming the characteristic parameters of the attachment abutment, the dental model can be provided with an attachment abutment.

[0214] The setting position of the attachment abutment on the dental model can also be determined based on the needs of the operator or treatment requirements. Figures 4 to 6 The attachment abutment 4 is provided at the crown of the tooth of the dental model 100, particularly on the buccal or labial side. Of course, the present invention is not limited to this setting method. In some possible scenarios, the attachment abutment can also be provided on the lingual side of the tooth.

[0215] The attachment abutment is used to determine the attachment installation platform.

[0216] In one implementation, it includes the steps of: determining the characteristic parameters of the attachment installation platform according to the characteristic parameters of the attachment abutment. Further, it includes the step of: forming the attachment installation platform according to the characteristic parameters of the attachment installation platform.

[0217] In one embodiment, the attachment installation platform is formed on the tooth aligner. In a specific embodiment, the attachment installation platform is formed as a bulge at the tooth aligner. The bulged part can be a cavity or a solid; for the former, the corresponding attachment abutment can be set in the cavity formed by the attachment installation platform.

[0218] In one embodiment, the attachment installation platform is formed on the dental model. The attachment installation platform is used to connect the traction attachment and the dental model.

[0219] In one implementation, it includes the step of: forming the attachment installation platform at the tooth aligner in a die-casting manner according to the attachment abutment.

[0220] In one implementation, it includes the step of: using at least one side of the part where the attachment abutment protrudes from the dental model as the attachment installation platform.

[0221] The attachment installation platform is used to install the traction attachment.

[0222] The traction attachment is used to implement the traction plan.

[0223] The traction attachment is installed on the attachment installation platform through its base. In one implementation, the base is configured as a plate-like structure. Correspondingly, the part of the attachment installation platform for installing the traction attachment is a flat surface.

[0224] The traction attachment transfers the traction force to one side of the tooth model through the cooperation of its body and the traction connection member. The body is used to connect and support the traction connection member. The traction connection member includes, but is not limited to, an elastic connection member.

[0225] Step S2: Determine the traction direction according to the traction plan.

[0226] The traction plan stipulates that the traction attachment to be installed at the attachment abutment provides the function of the first traction direction. Therefore,

[0227] In one implementation, the first traction direction can be strictly used as the target traction direction. In one implementation, the target traction direction can be determined according to the first traction direction in combination with the characteristics of the traction attachment itself.

[0228] For example, as Figure 10 and Figure 11 shown, the traction attachment includes a body 3a and a base 3b.

[0229] In this implementation, the body 3a includes an opening and a support portion for connecting the traction connection member.

[0230] If the traction plan determines to use Figure 11 the first direction D1 or the second direction D2 shown as the first traction direction, then the first direction D1 or the second direction D2 can be strictly used as the target traction direction of the traction attachment.

[0231] If the traction plan determines that the direction towards the opening is the first traction direction, then since applying force towards the opening direction will cause the traction connection member to come off, therefore, based on the structural characteristics of the traction attachment itself, the hook-shaped structure used to form the opening is adjusted as the new support portion, and another direction with an angular difference from the first traction direction is determined as the target traction direction. The re-determined target traction direction can at least form a projection in the first traction direction.

[0232] Step S3: Determine the characteristic parameters of the attachment abutment and / or the characteristic parameters of the traction attachment according to the traction direction.

[0233] The characteristic parameters of the attachment abutment refer to the configuration parameters of the attachment abutment at the tooth model, which can be set according to the needs of the operator. When some parameters of the attachment abutment cannot be adjusted due to constraints such as treatment requirements and feasibility, the other adjustable or to-be-determined parameters of the attachment abutment are the characteristic parameters of the attachment abutment here.

[0234] The same applies to the characteristic parameters of the traction attachment, which will not be elaborated here.

[0235] The attachment abutment is used to determine the attachment installation platform, and the attachment installation platform is used to install the traction attachment. There is a corresponding relationship between the attachment abutment and the traction attachment. Therefore, some characteristic parameters of the traction attachment may overlap with some characteristic parameters of the attachment abutment.

[0236] Regarding the position, if there is only one installation position of the traction attachment on the attachment installation platform, the fixed position of the attachment abutment and the fixed position of the traction attachment are the same relative to the same reference object (such as different positions of the same tooth or different positions of different teeth); if the traction attachment can be installed at multiple positions on the attachment installation platform, the fixed positions are different.

[0237] Regarding the attitude, if the side surface of the traction attachment, especially its base body, for installation is a flat surface and the top surface of the attachment installation platform for installation is a flat surface, then the side surface is parallel to the top surface, and the inclination angles of the traction attachment and the attachment installation platform relative to the same reference object are the same; if not, they may be different.

[0238] Regarding other characteristic parameters such as height, etc., there is also a correlation between the two. At this level, determining the characteristic parameters of the traction attachment is equivalent to determining the corresponding characteristic parameters of the attachment abutment.

[0239] Based on step S3, so that the traction attachment correspondingly installed on the attachment abutment meets the treatment requirements of the traction plan.

[0240] From the simulation or principle level, when the attachment abutment determined according to the above characteristic parameters cooperates with the traction attachment, the actual traction method formed can meet the treatment requirements corresponding to the traction plan; or, when the traction attachment determined according to the above characteristic parameters cooperates with the corresponding attachment abutment, the actual traction method formed can meet the treatment requirements corresponding to the traction plan.

[0241] Specifically, when the traction attachment is installed on the attachment installation platform determined by the attachment abutment prepared according to the determined characteristic parameters of the attachment abutment, it can be used to provide the traction force that meets the treatment requirements of the traction plan; or, when the traction attachment prepared according to the determined characteristic parameters of the traction attachment is installed on the attachment installation platform determined by the attachment abutment, it can provide the required traction force; or, when the traction attachment prepared according to the determined characteristic parameters of the traction attachment is installed on the attachment installation platform determined by the attachment abutment prepared according to the determined characteristic parameters of the attachment abutment, it can provide the required traction force.

[0242] In some embodiments, the traction attachment itself is not used to provide the traction force, but based on the action of the elastic restoring force such as the traction connecting piece, the traction force is transmitted to the tooth model or the tooth orthodontic appliance.

[0243] In one embodiment, the traction system formed by the attachment abutment, the attachment mounting platform, and the traction attachment is required to support the implementation of the traction force in the target traction direction, and the traction force in the target traction direction can be actually implemented without problems such as tooth interference. The above traction system can be determined by the method for confirming the attachment abutment provided by the present invention; in one embodiment, the attachment abutment, as the "bridge" for constructing the relationship between the attachment mounting platform and the traction attachment, may not necessarily be defined as part of the traction system.

[0244] In one embodiment, the characteristic parameters of the attachment abutment include the type of the attachment abutment.

[0245] In one embodiment, the type of the attachment abutment may include shape, material, design standard, connection relationship with other structures, etc.

[0246] In one embodiment, the characteristic parameters of the attachment abutment include the height of the attachment abutment.

[0247] In one embodiment, the height of the attachment abutment is the height protruding from the tooth crown surface.

[0248] In one embodiment, the height of the attachment abutment is the distance relative to the incisal edge of the tooth or the distance relative to the gingiva.

[0249] In one embodiment, the characteristic parameters of the attachment abutment include the fixed position of the attachment abutment.

[0250] In one embodiment, the fixed position of the attachment abutment includes positions at different parts on the same tooth. For example, adjusting the attachment abutment from one part of the tooth to another part is equivalent to changing the fixed position of the attachment abutment.

[0251] In one embodiment, the fixed position of the attachment abutment includes positions on different teeth. For example, adjusting the attachment abutment from one tooth to another tooth is equivalent to changing the fixed position of the attachment abutment.

[0252] In one embodiment, the characteristic parameters of the attachment abutment include the foregoing multiple items. Specifically, two or more items can be included as the characteristic parameters of the attachment abutment.

[0253] In one embodiment, the characteristic parameters of the traction attachment include the type of the traction attachment.

[0254] In one embodiment, the type of the attachment abutment may include shape, material, design standard, connection relationship with other structures, etc.

[0255] Taking the shape as an example, as Figures 10 to 14 shown, the traction attachment includes a matrix 3b and a body 3a.

[0256] The main body 3a includes an opening and a supporting part for connecting a traction connecting member.

[0257] In Figures 10 to 11 the illustrated embodiment, the opening is formed by the main body 3a itself. In Figures 12 to 14 the illustrated embodiment, the opening is formed jointly by the main body 3a and the base body 3b.

[0258] The traction accessory 3 may have a designed force application direction, which characterizes the direction of the traction force that it can support.

[0259] The designed force application direction is arranged at an angle to the extending direction of the supporting part.

[0260] The designed force application direction points to the side of the traction accessory away from the opening.

[0261] For Figure 10 , Figure 11 the illustrated embodiment, the opening is formed based on a hook-shaped part formed along the first axis ( Figure 10 the direction perpendicular to the paper surface); the supporting part is hook-shaped. The designed force application direction is perpendicular to the first axis and points to the side of the traction main body away from the opening. Any part perpendicular to the first axis at the hook-shaped part can be defined as the designed force application direction.

[0262] In a preferred embodiment, any direction between the illustrated first direction D1 and the second direction D2 at the part of the supporting part facing away from the opening can be used as the designed force application direction. Within this range, the traction accessory can support the application of the traction force in most cases.

[0263] For Figures 12 to 14 the illustrated embodiment, the main body 3a of the traction accessory 3 is in an umbrella shape or a mushroom shape.

[0264] Figure 13 A side view in one perspective is shown, and the third direction D3 horizontally away from the supporting part can be defined as the designed force application direction.

[0265] Figure 14 A top view in one perspective is shown, and the third direction D3 is distributed within a 360-degree range.

[0266] The designed force application direction can also be defined as a characteristic parameter of the accessory base or a characteristic parameter of the traction accessory.

[0267] When the designed force application direction participates in the step of determining the characteristic parameter, it constitutes a constraint for the adjustment process to make the finally determined characteristic parameter conform to the actual situation.

[0268] When the design force direction participates in the determination step of the traction direction, it constitutes prior knowledge (constraints in the preparation process) to make the specified traction direction conform to the actual situation.

[0269] In one embodiment, the characteristic parameters of the traction attachment include the fixed position of the traction attachment.

[0270] In one example, the fixed position of the traction attachment includes positions at different parts of the same tooth. For example, adjusting the traction attachment from one part of the tooth to another part is equivalent to changing the fixed position of the traction attachment.

[0271] In one example, the fixed position of the traction attachment includes positions on different teeth. For example, adjusting the traction attachment from one tooth to another tooth is equivalent to changing the fixed position of the traction attachment.

[0272] In one embodiment, the characteristic parameters of the traction attachment include the foregoing multiple items. Specifically, two or more items can be included as the characteristic parameters of the traction attachment.

[0273] In one embodiment, the method for determining the attachment abutment includes the step of: when the first condition is not satisfied, adjusting the characteristic parameters of the attachment abutment.

[0274] In one embodiment, the method for determining the attachment abutment includes the step of: when the first condition is not satisfied, adjusting the characteristic parameters of the traction attachment.

[0275] In one embodiment, the method for determining the attachment abutment includes the step of: when the first condition is not satisfied, adjusting the characteristic parameters of the attachment abutment and the characteristic parameters of the traction attachment.

[0276] The first condition can be a condition set for the traction direction.

[0277] In one example, the first condition can include: no tooth interference occurs in the traction direction, the traction direction avoids pointing from the upper jaw to the lower jaw or from the lower jaw to the upper jaw, the traction direction avoids pointing from the left side to the right side or from the right side to the left side, or the number of teeth passed through in the traction direction cannot exceed a threshold.

[0278] The first condition can be a condition set for the attachment abutment and the attachment mounting platform.

[0279] In one example, the first condition can include: the protrusion amount cannot exceed a threshold, the quantity cannot exceed a threshold, the number of teeth between multiple attachment abutments or attachment mounting platforms cannot exceed a threshold, or the fixed position cannot be located at the incisal edge.

[0280] The first condition can be a condition set for the traction attachment.

[0281] In one embodiment, the first condition may include: the protrusion amount of the traction attachment body not exceeding a threshold value, the quantity not exceeding a threshold value, the number of teeth between multiple traction attachments not exceeding a threshold value, the inclination angle of the traction attachment not exceeding a threshold value, or the fixed position not being located at the incisal edge.

[0282] The first condition may be generated based on treatment requirements.

[0283] Treatment requirements may set the installation positions of multiple traction attachments, attachment abutments, and attachment mounting platforms that cooperate with each other, or the traction force application relationship. For the latter, for example, when the treatment requirements are set such that the first tooth moves along the first treatment direction and the second tooth moves along the second treatment direction, and the two treatment directions are opposite, it can be determined that the traction force application relationships of these two teeth match each other and meet the treatment requirements.

[0284] The first condition may be generated based on the actual situation of the tooth model.

[0285] The actual situation of the tooth model may include: interference, affecting occlusion, crowding, missing teeth, or supernumerary teeth, etc.

[0286] The adjusted characteristic parameters may include increasing or decreasing the protrusion amount (height) relative to the buccal surface or labial surface, changing the installation position at a single tooth, replacing the installation on other teeth, replacing the type (changing the hook type to the mushroom type, or the mushroom type to the hook type; changing the trapezoidal shape to the columnar shape, or the columnar shape to the trapezoidal shape), replacing the material (changing rubber to metal, or metal to rubber; changing the formation at the tooth appliance to the formation on the tooth surface, or the formation on the tooth surface to the formation at the tooth appliance).

[0287] For any of the foregoing embodiments, in one embodiment, the first condition includes: the traction direction and the axis of the attachment abutment satisfy a predetermined range.

[0288] As Figure 6 shown, the axis i of the attachment abutment 4 may be the axis of the attachment mounting platform 2. When the base of the traction attachment 3 is parallel to the top surface of the attachment abutment 4 and the top surface of the attachment mounting platform 2, the axis i of the attachment abutment 4 may also be the axis of the base.

[0289] In one embodiment, the designed force application direction of the traction attachment may be determined according to the axis i, and the traction direction may be determined according to the designed force application direction.

[0290] As Figure 13 shown, the designed force application direction of the traction attachment 3 is perpendicular to the axis i, so the traction direction may be determined near the direction perpendicular to the axis i.

[0291] As Figure 11As shown, the included angle between the designed force-bearing direction of the traction attachment 3 and the axis i is distributed within a certain included angle range, so the traction direction can be determined near this included angle range.

[0292] Specifically, the value of the included angle between the traction direction and the designed force-bearing direction is less than the orthodontic allowable error angle. In a specific embodiment, the orthodontic allowable error angle is 10 degrees.

[0293] Correspondingly, the orthodontic allowable error angle can be used as the predetermined range, and by judging whether the angle difference between the traction direction and the designed force-bearing direction is within the orthodontic allowable error angle range, it can be determined whether the current configuration meets the first condition.

[0294] In one embodiment, the reference direction of the traction attachment can be determined according to the axis i, and the traction direction can be determined according to the reference direction.

[0295] As Figure 13 shown, taking the third direction D3 perpendicular to the axis i of the traction attachment 3 as the reference direction, which is distributed within 360 degrees in the plane perpendicular to the axis i, so any direction in this plane can be used as the reference direction, and the traction direction can be determined near this reference direction.

[0296] Specifically, the value of the included angle between the traction direction and the reference direction is less than the orthodontic allowable error angle. In a specific embodiment, the orthodontic allowable error angle is 10 degrees.

[0297] Correspondingly, the orthodontic allowable error angle can be used as the predetermined range, and by judging whether the angle difference between the traction direction and the reference direction is within the orthodontic allowable error angle range, it can be determined whether the current configuration meets the first condition.

[0298] For any of the foregoing embodiments, in one embodiment, the first condition includes: the traction direction does not cause tooth interference.

[0299] The tooth interference includes: the traction system for implementing traction along the traction direction does not interfere with the tooth model. Such as the traction connecting piece connecting the two traction attachments does not interfere with the buccal surface, labial surface, lingual surface, and incisal edge of the teeth.

[0300] The tooth interference includes: unexpected interference occurs between the teeth distributed in the traction direction. Such as in the case of crowded and disordered teeth, traction is implemented according to the current traction direction, resulting in interference and increasing the degree of tooth disorder.

[0301] For any of the foregoing embodiments, in one embodiment, the first condition includes: the traction direction and the axis of the attachment abutment satisfy a predetermined range, and the traction direction does not cause tooth interference.

[0302] For the first condition including the interference condition, in an embodiment of the present invention, it is possible to determine whether interference occurs by fitting a virtual connecting member.

[0303] Such as Figures 15 to 17 Combined with Figure 4 , Figure 6 As shown, the method for determining the attachment abutment in an embodiment of the present invention includes at least one of the following steps.

[0304] Step P1, fit a virtual connecting member L along the traction direction D from the traction attachment 3 to obtain the position relationship data between the virtual connecting member L and the associated teeth.

[0305] The associated teeth are the teeth in the tooth model 100 that are located on one side of the traction attachment 3 in the traction direction D.

[0306] Step P2, determine the tooth interference situation in the traction direction according to the position relationship data.

[0307] In one embodiment, the method for determining the attachment abutment includes the steps of: in the same dental arch coordinate system, if there are characteristic points of the associated teeth whose coordinates fall within the traction direction, it is determined that tooth interference occurs in the traction direction, and the associated teeth are at least one tooth corresponding to the traction direction.

[0308] When there is at least one characteristic point of the associated teeth and the coordinates of this characteristic point fall within the traction direction, for example, overlap or have an intersection with the traction direction, it is determined that the associated teeth will interfere with the traction direction.

[0309] The associated teeth are the teeth in the tooth model that are located on one side of the traction attachment in the traction direction.

[0310] The above embodiments can be combined. For example, it is possible to judge whether there are characteristic points falling within the traction direction by fitting a virtual connecting member.

[0311] The method for determining the attachment abutment includes at least one of the following steps.

[0312] Step P11, obtain the characteristic parameters of the associated teeth, and judge whether there are characteristic points of the associated teeth that fall within the space defined by the virtual connecting member in the same dental arch coordinate system.

[0313] Step P21, determine the tooth interference situation in the traction direction according to the judgment result.

[0314] Specifically, such as Figure 15As shown, for the associated teeth t11, t12, t13, t14 of the first traction attachment 31 and the second traction attachment 32 in the traction direction L (in one embodiment, t11 or t14 may not be included), they do not overlap with the virtual connection member L; there are no feature points of the associated teeth falling into the space of the virtual connection member L. Therefore, it is determined that the current configuration of the traction attachment, attachment base, attachment mounting platform, and traction direction does not cause tooth interference.

[0315] As Figure 16 shown, among the associated teeth t11, t12, t13, t14 of the first traction attachment 31 and the second traction attachment 32 in the traction direction L, at least the associated tooth t12 overlaps with the virtual connection member L; there are feature points of the associated teeth falling into the space of the virtual connection member L. Therefore, it is determined that the current configuration of the traction attachment, attachment base, attachment mounting platform, and traction direction causes tooth interference.

[0316] In one embodiment, it is judged whether there is a partial overlap between the tooth model and the virtual connection member L from the image vision level to determine whether interference occurs. This solution can be implemented based on manual visual recognition or based on a neural network component image recognition model.

[0317] In one embodiment, it is judged whether there are feature points of the associated tooth part in the tooth model falling into the space defined by the virtual connection member L through the spatial operation level. This solution can be implemented by calculating the relationship between the coordinate of the feature point of the associated tooth and the spatial position distribution of the virtual connection member, and judging the interference according to whether the position of the feature point coordinate is within the space of the virtual connection member.

[0318] In one embodiment, the method of adjusting the characteristic parameters of the attachment base includes: adjusting the target position on the target tooth corresponding to the attachment base.

[0319] As Figure 17 shown, the first attachment base 41 uses the tooth t11 as its first target tooth, and the position of the first attachment base 41 at the first target tooth t11 can be adjusted, so as to correspondingly adjust the position of the first attachment mounting platform 21 (in combination with Figure 4 ), the position of the first traction attachment 31 relative to the first target tooth t11. When the first attachment base 41 is adjusted to its target position (when moving from the dotted line part to the solid line part in Figure 17 ), the interference between the virtual connection member L or the traction direction D and the associated tooth (for example, t12) can be eliminated, so that the current traction system meets the first condition.

[0320] The second attachment base 42 uses the tooth t14 as its second target tooth, and the position of the second attachment base 42 at the second target tooth t14 can be adjusted, so as to correspondingly adjust the second attachment mounting platform 22 (in combination withFigure 4 ) The position of the second traction attachment 32 relative to the second target tooth t14. When the second attachment abutment 42 is adjusted to its target position (when the dashed part in Figure 17 moves to the solid line part), the interference between the virtual connecting member L or the traction direction D and the associated tooth (e.g., t12) can be eliminated, prompting the current traction system to meet the first condition.

[0321] In one implementation, the method of adjusting the characteristic parameters of the traction attachment includes: adjusting the target position on the target tooth corresponding to the traction attachment.

[0322] This implementation is similar in principle to the previous one, but can be achieved by, for example, separately increasing the traction attachment (especially increasing the matrix thickness or the body extension length), adjusting the position of the traction attachment at the attachment mounting platform, and separately adjusting the tilt angle of the traction attachment.

[0323] In one implementation, the method of adjusting the characteristic parameters includes: adjusting the target position on the target tooth corresponding to the attachment abutment, and adjusting the target position on the target tooth corresponding to the traction attachment.

[0324] In one implementation, as Figure 18 shown, the method of adjusting the characteristic parameters of the attachment abutment includes the following steps.

[0325] Step S31: Adjust the target tooth or the target tooth gap corresponding to the attachment abutment.

[0326] For adjusting the target tooth, for example, the first attachment abutment with the first tooth as the first target tooth can be adjusted to the second tooth, so that the first attachment abutment takes the second tooth as the new target tooth.

[0327] For adjusting the target tooth gap, corresponding to the "filled interproximal space after filling the undercut" mentioned above, for example, the first attachment abutment with the first tooth gap as the first target tooth gap can be adjusted to the second tooth gap, so that the first attachment abutment takes the second tooth gap as the new target tooth gap.

[0328] The condition for triggering step S31 can be that the adjustment before step S31 has ended, but the traction system still cannot meet the first condition, or that the final adjustment results of the traction attachment, the attachment abutment, and the attachment mounting platform are out of reality and cannot be implemented.

[0329] Step S32: Determine the fixed position of the attachment abutment on the adjusted target tooth.

[0330] Determining the fixation position of the attachment abutment may include the step of initializing the fixation position of the attachment abutment and constructing a new attachment abutment on the adjusted target tooth according to the traction plan.

[0331] Determining the fixation position of the attachment abutment may include the step of adjusting the position of the attachment abutment on the adjusted target tooth according to the traction direction, especially the interference situation.

[0332] In one implementation, the method of adjusting the characteristic parameters of the attachment abutment includes: adjusting the dimension of the attachment abutment in the direction perpendicular to the buccal surface of the corresponding tooth to adjust the height of the attachment abutment.

[0333] In one implementation, the method of adjusting the characteristic parameters of the attachment abutment includes: adjusting the position of the attachment abutment in the direction perpendicular to the buccal surface of the corresponding tooth to adjust the height of the attachment abutment.

[0334] For example, although in Figure 17 , by adjusting the position of the attachment abutment in the direction perpendicular to the buccal surface, the adjustment of the height of the attachment abutment relative to the convex tooth model is realized, the adjustment of the height of the attachment installation platform relative to the convexity is realized, and the increase of the relative distance between the traction attachment and the tooth model is realized. However, the elevation of the attachment installation platform and the elevation of the traction attachment can also be realized by "expanding" the dimension of the attachment abutment in this direction.

[0335] In one implementation, the method of adjusting the characteristic parameters of the traction attachment includes: adjusting the fixation position of the traction attachment to other teeth near the current tooth.

[0336] In an implementation where there are also attachment abutments or attachment installation platforms at other teeth near the current tooth, the above steps may be: moving the first traction attachment from the first attachment abutment or the first attachment installation platform at the first tooth to the second attachment abutment or the second attachment installation platform at the second tooth.

[0337] The first tooth and the second tooth are adjacent, thus improving the processing speed.

[0338] In an implementation where there are no attachment abutments or attachment installation platforms at other teeth near the current tooth, the traction attachment can be moved to other teeth first, and then the traction attachment, the attachment abutment or the attachment installation platform can be gradually elevated from zero to finally determine the appropriate height and correspondingly construct the appropriate attachment abutment or attachment installation platform.

[0339] In one implementation, the method of adjusting the characteristic parameters includes multiple ones as described above.

[0340] The present invention provides a combination of implementation manners, the idea of which is as follows: raise the height of the attachment abutment, and correspondingly determine whether the current height conforms to the actual situation. When it does not conform to the actual situation and the interference problem is not solved, adjust the attachment abutment to other nearby teeth; when selecting other teeth, select them in the order from near to far from the current tooth; when exceeding the maximum distance, try to eliminate the interference by adjusting other characteristic parameters. Of course, the present invention is not limited to this combination of embodiment manners.

[0341] Combined with Figures 15 to 17 , the method for determining the attachment abutment provided by the present invention specifically includes at least one of the following steps.

[0342] Step M1, increase the first height of the first attachment abutment 31 in the buccal direction perpendicular to the corresponding first tooth t11, and determine whether the updated first height is greater than the first threshold.

[0343] Although the "increasing" method is adopted for adjustment in this implementation manner, of course, in other implementation manners of the present invention, the "decreasing" method can also be adopted for adjustment.

[0344] If the updated first height is greater than the first threshold, it indicates that the first height no longer meets the treatment requirements, for example, it will cause strong discomfort to the patient.

[0345] Step M2, adjust the fixed position of the first attachment abutment t11 to the second tooth t12 directly adjacent to the first tooth t11, refit the virtual connecting member L, update the associated teeth (for example, update to t12, t13, and t14, or update to t13) and the positional relationship data, and adjust the characteristic parameters of the updated traction attachment according to the updated positional relationship data until the positional relationship meets the orthodontic requirements.

[0346] In one implementation manner, the manner for determining the attachment abutment further includes at least one of the following steps.

[0347] Step M21, increase the second height of the attachment abutment in the buccal direction perpendicular to the second tooth, and determine whether the updated second height is greater than the second threshold.

[0348] The heights of the attachment abutment in the buccal directions of the first tooth and the second tooth may be the same or different. The first height and the second height may be equal or unequal.

[0349] At different teeth, the heights allowed in the buccal direction based on the oral environment and the degree of scratching on the lip and cheek side may be the same or different. The first threshold and the second threshold may be the same or different.

[0350] If the updated second height is greater than the second threshold, it indicates that the first height no longer meets the treatment requirements, for example, it may cause strong discomfort to the patient.

[0351] Step M22: Adjust the fixed position of the first attachment abutment t11 to the third tooth t13 that is at least one tooth apart from the first tooth t11, refit the virtual connector, update the associated teeth and position relationship data, and adjust the characteristic parameters of the updated traction attachment according to the updated position relationship data.

[0352] Step M23: Obtain the number of spaced teeth between the current tooth corresponding to the updated traction attachment and the first tooth t11 (for example, when at the third tooth t13, the number of spaced teeth is 1), and determine whether the number of spaced teeth does not meet the orthodontic allowable range.

[0353] The orthodontic allowable range defines the range of other adjacent teeth that can be selected compared to the optimal first tooth t11 as the fixed position. This part can be determined according to the treatment requirements and traction scheme, and essentially, it does not allow the span to be too large or too small.

[0354] If the number of spaced teeth is greater than the orthodontic allowable interval value, it indicates that the combination of the currently constructed traction attachment, attachment abutment, and attachment mounting platform can no longer meet the orthodontic requirements based on the height adjustment. Further, other characteristic parameters can be adjusted instead.

[0355] When each time a neighboring other tooth is replaced as the new fixed position, the attachment abutment and attachment mounting platform can be restored to the initial height, or further adjusted (for example, increased) based on the height finally adjusted at the previous tooth.

[0356] For the former, the method for confirming the attachment abutment provided by the present invention includes the steps of: after restoring the height of the attachment abutment in the direction perpendicular to the buccal surface of the corresponding tooth, adjusting the fixed positions of the attachment abutment, traction attachment, and attachment mounting plane to another tooth adjacent to the tooth.

[0357] In summary, the method for designing a tooth orthodontic appliance provided by the present invention, by obtaining a tooth model and accordingly determining the characteristic parameters of the attachment abutment and / or the traction attachment, can make the determined characteristics of the traction attachment conform to the actual situation of the patient, having higher practicability; by determining the traction direction and accordingly determining the relevant characteristic parameters, it can exclude possible problems between the teeth from the traction scheme itself to determine the characteristic parameters, having higher operability and being able to achieve risk elimination; the determination process of the characteristic parameters considering the attachment abutment helps to improve the speed and accuracy of the process of determining the characteristic parameters that meet the treatment requirements.

[0358] It should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0359] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or modifications made without departing from the spirit of the art of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for determining an abutment base, characterized in that, The accessory base is used to determine an accessory installation platform, and the accessory installation platform is used to install a traction accessory. The method for determining the accessory base includes: Obtaining a patient's dental model and a traction plan; the patient's dental model is provided with an accessory base; Determine the traction direction according to the traction plan; According to the traction direction, characteristic parameters of the accessory base and / or characteristic parameters of the traction accessory are determined so that the traction accessory installed corresponding to the accessory base meets the treatment requirements of the traction plan.

2. The method for determining an accessory base according to claim 1, characterized in that: The characteristic parameters of the accessory base include at least one of the following: The type of accessory abutment, the height of the accessory abutment, and the attachment position of the accessory abutment; The characteristic parameters of the traction attachment include at least one of the following: The accessory base corresponds to the type of traction accessory installed and the fixing position of the traction accessory.

3. The method for determining an attachment abutment according to claim 1 or 2, characterized in that, The method comprises: When the first condition is not met, characteristic parameters of the accessory base and / or characteristic parameters of the traction accessory are adjusted.

4. The method for determining an accessory base according to claim 3, characterized in that: The first condition includes at least one of the following: The traction direction and the axis of the accessory base meet the predetermined range; The traction direction does not cause tooth interference.

5. The method for determining an abutment according to claim 4, wherein The method comprises: In the same tooth-jaw coordinate system, there is a feature point of the associated tooth whose coordinates fall within the traction direction, and it is determined that the traction direction produces tooth interference, and the associated tooth is at least one tooth corresponding to the traction direction.

6. The method for determining an abutment according to any one of claims 3-5, characterized in that The method of adjusting the characteristic parameters includes at least one of the following: Adjust the target position on the target tooth corresponding to the accessory abutment; Adjust the traction attachment to the target position on the target tooth.

7. The method for determining an abutment according to any one of claims 3-6, characterized in that, Ways to adjust feature parameters include: Adjust the target tooth or target tooth gap corresponding to the accessory abutment; Determine the attachment abutment fixing position on the adjusted target tooth.

8. The method for determining an abutment according to any one of claims 3-7, characterized in that The method of adjusting the characteristic parameters includes at least one of the following: Adjust the dimension of the accessory abutment in a direction perpendicular to the buccal surface of the corresponding tooth to adjust the height of the accessory abutment; Adjust the position of the accessory abutment in a direction perpendicular to the buccal surface of the corresponding tooth to adjust the height of the accessory abutment; The fixing position of the pulling attachment is adjusted to other teeth located near the current tooth.

9. An orthodontic appliance, characterized in that, The dental appliance includes an accessory mounting platform for mounting a traction accessory, and the accessory mounting platform is prepared based on the method for determining an accessory base as described in any one of claims 1-8.

10. The dental appliance according to claim 9, characterized in that: The accessory mounting platform includes at least one of the following features: The top surface of the accessory mounting platform has protruding teeth; The top surface of the accessory mounting platform protrudes to fill the concave adjacent gap surface; The top surface of the accessory mounting platform is provided with an adhesive retention reinforcement portion; Portions of the inner peripheral surface of the accessory mounting platform have a draft angle; The surrounding surfaces of the accessory installation platform are provided with reinforcing ribs along the axial direction.

11. The dental appliance according to any one of claims 9-10, characterized in that, The force direction of the top surface of the accessory mounting platform is substantially parallel to the traction direction of the traction accessory.

12. A display method, characterized in that, include: Display the tooth model, and at least one of the following: Display an attachment abutment according to characteristic parameters, the characteristic parameters being determined based on the method for determining an attachment abutment according to any one of claims 1-8; Display a traction attachment according to characteristic parameters, the characteristic parameters being determined based on the method for determining an attachment abutment according to any one of claims 1-8; Display an attachment mounting platform according to characteristic parameters, the characteristic parameters being determined based on the method for determining an attachment abutment according to any one of claims 1-8.

13. The display method according to claim 12, characterized in that, The method includes: In the same dental coordinate system, display a virtual connecting member that extends along the traction direction.

14. A device for determining an attachment abutment, characterized in that, It includes: A first module for obtaining a dental model of a patient and a traction plan, the dental model of the patient being provided with an attachment abutment; A second module for determining a traction direction according to the traction plan; A third module for determining characteristic parameters of the attachment abutment and / or characteristic parameters of the traction attachment according to the traction direction, so that the traction attachment correspondingly installed on the attachment abutment meets the treatment requirements of the traction plan.

15. An electronic device, characterized in that, It includes a processor, a memory and a communication bus, characterized in that the processor and the memory complete mutual communication through the communication bus; The memory is used for storing application programs; The processor is used for, when executing the application program stored on the memory, implementing the steps of the method for determining an attachment abutment according to any one of claims 1-8, or implementing the steps of the display method according to any one of claims 12-13.

16. A storage medium, on which an application program is stored, characterized in that, When the application program is executed, it implements the steps of the method for determining an attachment abutment according to any one of claims 1-8, or implements the steps of the display method according to any one of claims 12-13.

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