Accessory adjusting method and device of orthodontic appliance, electronic equipment and storage medium

Abstract

The invention discloses an accessory adjusting method and device of an orthodontic appliance, electronic equipment and a computer readable storage medium. The method comprises the following steps: identifying a rotation reference point of a lower jawbone of a user and a current position of a target tooth of the user; determining a first rotation radius of the target tooth according to the current position and the lower jawbone rotation reference point; the standard thickness of the orthodontic appliance is obtained, and the lower jawbone rotation angle of the user is determined according to the first rotation radius and the standard thickness; according to the rotation angle of the lower jawbone, the correction amount of the orthodontic appliance on to-be-adjusted teeth is determined, and the to-be-adjusted teeth are teeth except the target teeth in the oral cavity of the user; the height of the accessory corresponding to the tooth to be adjusted is adjusted based on the orthodontic amount, so that the accessory height of the orthodontic appliance is matched with the orthodontic amount, passive lowering of the second molar due to point contact can be prevented, occlusion alignment of the upper jaw and the lower jaw is improved, and stable occlusion contact of the teeth of the upper jaw and the lower jaw in the process of wearing the orthodontic appliance is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of orthodontic appliances, and in particular to an accessory adjustment method and device for orthodontic appliances, an electronic device, and a computer readable storage medium. BACKGROUND

[0002] An orthodontic appliance is a medical tool used to correct tooth arrangement and occlusion problems. It mainly adjusts the position of teeth and the relationship between the jaws by applying continuous and gentle force. The accessory of an orthodontic appliance is an auxiliary component used in conjunction with the main orthodontic appliance in orthodontic treatment. It is usually fixed on the surface of teeth or installed in conjunction with the main orthodontic appliance. Its core function is to enhance fixation and guide precise tooth movement. The cooperation of the accessory and the orthodontic appliance can improve the efficiency of tooth correction and avoid correction deviation.

[0003] Generally speaking, the thickness of an orthodontic appliance needs to meet the requirements of force intensity and comfort of wearing at the same time. Therefore, the thickness of the orthodontic appliance is often a value within a fixed range. However, after the user wears the orthodontic appliance, due to the inconsistent opening height of the jaws, only the point contact of the posterior teeth area is achieved, and the anterior teeth area cannot be occlusally contacted. SUMMARY

[0004] The embodiments of the present application provide an accessory adjustment method and device for orthodontic appliances, an electronic device, and a computer readable storage medium, which can solve the technical problem of unstable occlusal contact of upper and lower teeth after the user wears the orthodontic appliance.

[0005] The embodiments of the present application provide an accessory adjustment method for an orthodontic appliance, which comprises: identifying a user's mandibular rotation reference point and a current position of a target tooth of the user; determining a first rotation radius of the target tooth according to the current position and the mandibular rotation reference point; obtaining a standard thickness of the orthodontic appliance, and determining a mandibular rotation angle of the user according to the first rotation radius and the standard thickness; determining a correction amount of the orthodontic appliance on a tooth to be adjusted according to the mandibular rotation angle, the tooth to be adjusted being a tooth other than the target tooth in the user's oral cavity; adjusting the height of the accessory corresponding to the tooth to be adjusted based on the correction amount.

[0006] Further, the determination of the correction amount of the orthodontic appliance on the tooth to be adjusted according to the mandibular rotation angle comprises: obtaining a second rotation radius of the tooth to be adjusted; determining a vertical opening amount of the tooth to be adjusted according to the second rotation radius and the mandibular rotation angle; determining an amount of correction of the orthodontic aligner on the tooth to be adjusted according to the vertical opening amount and the standard thickness.

[0007] Further, the above-mentioned determining the amount of correction of the orthodontic aligner on the tooth to be adjusted according to the mandibular rotation angle includes: determining a first spatial position of the tooth to be adjusted according to the mandibular rotation angle; determining a bite plane based on the tooth to be adjusted; identifying a second spatial position of a user's reference tooth according to the bite plane, the reference tooth being a tooth in a position opposite to the tooth to be adjusted; determining the amount of correction of the orthodontic aligner on the tooth to be adjusted according to the first spatial position, the second spatial position and the standard thickness.

[0008] Further, the above-mentioned determining the amount of correction of the orthodontic aligner on the tooth to be adjusted according to the first spatial position, the second spatial position and the standard thickness includes: dividing the bite plane into a plurality of reference points according to the tooth to be adjusted, one reference tooth corresponding to at least two reference points of the tooth to be adjusted on the bite plane; determining positions of the at least two reference points according to the first spatial position; determining the amount of correction of the orthodontic aligner on the tooth to be adjusted according to the second spatial position, the positions of the at least two reference points and the standard thickness.

[0009] Further, the above-mentioned determining the amount of correction of the orthodontic aligner on the tooth to be adjusted according to the second spatial position, the positions of the at least two reference points and the standard thickness includes: determining shortest distances between the at least two reference points and the reference tooth in a direction perpendicular to the bite plane according to the positions of the at least two reference points and the second spatial position; determining the amount of correction of the orthodontic aligner on the tooth to be adjusted according to the shortest distances and the standard thickness.

[0010] Further, the above-mentioned determining the first rotation radius of the target tooth according to the current position and the mandibular rotation reference point includes: obtaining an oral image of the user, and constructing a virtual jaw model based on the oral image; determining the first rotation radius of the target tooth according to the virtual jaw model, the mandibular rotation reference point and the current position.

[0011] Further, the height of the attachment corresponding to the tooth to be adjusted is adjusted based on the correction amount, including: obtaining a target position of the tooth to be adjusted; determining an offset amount of the tooth to be adjusted according to the target position and the current position; adjusting the height of the attachment corresponding to the tooth to be adjusted according to the offset amount and the correction amount.

[0012] Correspondingly, the embodiment of the present application provides an attachment adjustment device of an orthodontic appliance, including: a recognition module, configured to recognize a mandibular rotation reference point of a user and a current position of a target tooth of the user; a first confirmation module, configured to determine a first rotation radius of the target tooth according to the current position and the mandibular rotation reference point; a second confirmation module, configured to obtain a standard thickness of the orthodontic appliance, and determine a mandibular rotation angle of the user according to the first rotation radius and the standard thickness; a correction module, configured to determine a correction amount of the orthodontic appliance on a tooth to be adjusted according to the mandibular rotation angle, the tooth to be adjusted being a tooth other than the target tooth in the oral cavity of the user; an attachment adjustment module, configured to adjust the height of the attachment corresponding to the tooth to be adjusted based on the correction amount.

[0013] In addition, the embodiment of the present application further provides an electronic device, including a processor and a memory, the memory stores a computer program, and the processor is used to run the computer program in the memory to realize the attachment adjustment method of the orthodontic appliance provided by the embodiment of the present application.

[0014] In addition, the embodiment of the present application further provides a computer readable storage medium, the computer readable storage medium stores a computer program, and the computer program is suitable for being loaded by a processor to execute any one of the attachment adjustment methods of the orthodontic appliance provided by the embodiment of the present application.

[0015] In addition, the embodiment of the present application further provides a computer program product, including a computer program, and the computer program is executed by a processor to realize any one of the attachment adjustment methods of the orthodontic appliance provided by the embodiment of the present application.

[0016] The orthodontic appliance attachment adjustment method proposed in this application identifies the user's mandibular rotation reference point and the current position of the target teeth. This allows the user's teeth to be integrated into the orthodontic process, ensuring precise adjustment of the orthodontic appliance attachments based on tooth position even at different stages of treatment, thereby improving orthodontic efficiency and accuracy. Based on the current position and mandibular rotation reference point, a first rotation radius of the target teeth is determined, providing a precise basis for the mandibular rotation angle and improving the accuracy of attachment adjustment. Then, the standard thickness of the orthodontic appliance is obtained. Based on the first rotation radius and the standard thickness, the user's mandibular rotation angle is determined. This allows for determining the corresponding mandibular rotation angle while meeting the orthodontic appliance thickness requirements, ensuring that the subsequently determined correction amount eliminates the gap between the orthodontic appliance and the teeth to be adjusted, resulting in a better fit. Finally, based on the mandibular rotation angle, the correction amount of the orthodontic appliance on the teeth to be adjusted is determined, and the height of the attachments corresponding to the teeth to be adjusted is adjusted accordingly. This achieves the matching of the attachment height and the amount of correction of the orthodontic appliance, allowing the appliance to fit closely to the teeth through the attachment, preventing the second molar from being passively depressed due to point contact, and improving the alignment of the upper and lower jaws. This ensures that the upper and lower jaws can maintain stable occlusal contact during the wearing of the orthodontic appliance, thereby stabilizing the temporomandibular joint, guiding jawbone growth and remodeling, and improving orthodontic efficiency and accuracy. Attached Figure Description

[0017] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart illustrating the method for adjusting the accessories of the orthodontic appliance provided in this application; Figure 2 This is a schematic diagram of a tooth provided in this application; Figure 3 This is a schematic diagram of a tooth and its attachments provided in this application; Figure 4 This is a partial schematic diagram of an orthodontic appliance provided in this application; Figure 5 This is a schematic diagram of the structure of the accessory adjustment device of the orthodontic appliance provided in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] This application provides a method, apparatus, electronic device, and computer-readable storage medium for adjusting the attachments of an orthodontic appliance. The attachment adjustment device for the orthodontic appliance can be integrated into an electronic device, which can be a server, a terminal, or other similar device.

[0021] The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, network acceleration services (Content Delivery Network, CDN), as well as big data and artificial intelligence platforms.

[0022] The terminal can be a smartphone, tablet, laptop, desktop computer, smart speaker, smartwatch, etc., but is not limited to these. The terminal and the server can be connected directly or indirectly through wired or wireless communication, which is not limited herein.

[0023] Furthermore, in the embodiments of this application, "multiple" refers to two or more. The terms "first" and "second," etc., in the embodiments of this application are used for distinguishing descriptions and should not be construed as implying relative importance.

[0024] The following sections provide detailed descriptions of each example. It should be noted that the order in which the embodiments are described is not intended to limit the preferred order of the embodiments.

[0025] Please see Figure 1 , Figure 1 This is a flowchart illustrating a method for adjusting the attachments of an orthodontic appliance according to an embodiment of this application. The method for adjusting the attachments of the orthodontic appliance may include: S101. Identify the user's mandibular rotation reference point and the current position of the user's target tooth.

[0026] The mandibular rotation reference point is a stable reference point that does not change with tooth movement. All mandibular rotation movements are performed using this reference point to simulate the user's opening and closing mouth movements. The position of the mandibular rotation reference point can be determined when the user's teeth are in a centric occlusion. When the upper and lower teeth are in a centric, tight occlusion, the most central and stable contact point between the upper and lower dentition is the mandibular rotation reference point.

[0027] The target tooth can be any tooth selected from the user's mouth, or it can be one of the teeth in the user's mouth that needs to be adjusted. The current position is the location of the target tooth at the current time point. For example, the current position is the location of the target tooth in the first orthodontic stage.

[0028] In some implementations, a 3D model of the user's oral cavity can be directly scanned to determine the mandibular rotation reference point and the 3D coordinates of the target tooth, i.e., the current position of the target tooth. For example, two teeth are selected from the mandible, namely the first tooth and the second tooth. Based on the 3D model, the first initial position of the first tooth in a first movement state (such as occlusion) and the second initial position of the second tooth in the same first movement state (such as occlusion) are determined. Based on the 3D model, the user's mouth opening and closing movements are simulated to determine the first movement position of the first tooth in a second movement state (such as open mouth) and the second movement position of the second tooth in the same second movement state (such as open mouth). Based on the first initial position and the first movement position, the first movement line of the first tooth in the 3D model is determined, and based on the second initial position and the second movement position, the second movement line of the second tooth in the 3D model is determined. The intersection of the perpendicular line of the first movement line and the perpendicular line of the second movement line is determined as the mandibular rotation reference point.

[0029] In addition, three-dimensional images of the maxillofacial region can be generated through cone beam computed tomography (CBCT), or lateral cephalometric radiographs can be generated through X-ray scanning. Based on these three-dimensional images or lateral cephalometric radiographs, the rotation reference point of the mandible and the current position of the target tooth can be determined. For example, based on the three-dimensional images of the maxillofacial region or lateral cephalometric radiographs, the condyle (Co) can be calibrated as the rotation reference point of the mandible.

[0030] S102. Determine the first rotation radius of the target tooth based on the current position and the mandibular rotation reference point.

[0031] The first rotation radius refers to the linear distance between the target tooth and the mandibular rotation reference point. Therefore, it can be understood that neither the first rotation radius nor the radii between any other tooth and the mandibular rotation reference point are related to the rotation angle simulating opening and closing movements with the mandibular rotation reference point as the rotation center, but rather to the position of the rotation center and the position of each tooth. Changes in the rotation angle do not cause changes in the rotation radius between each tooth and the rotation center.

[0032] In some implementations, the first rotation radius can be calculated by calculating the difference between the current position of the target tooth and the rotation reference point of the mandible in the spatial coordinate system.

[0033] S103. Obtain the standard thickness of the orthodontic appliance, and determine the mandibular rotation angle of the user based on the first rotation radius and the standard thickness.

[0034] In this embodiment, since the thickness of the orthodontic appliance is related to the user's comfort and the intensity of force applied, the thickness of the orthodontic appliance is usually a value within a fixed range. For example, the thickness range of the orthodontic appliance is [0.5mm, 1.0mm], and the standard thickness of the orthodontic appliance is a value within this range.

[0035] In addition, it should be noted that the orthodontic appliance in this embodiment is an appliance worn on the upper and / or lower teeth, such as an invisible aligner. In this embodiment, the thickness of the orthodontic appliance can be selected as 0.6 mm, that is, the standard thickness of the orthodontic appliance is determined to be 0.6 mm. When the user's teeth are tightly occluded, the standard occlusal height of the orthodontic appliance in the vertical direction for the upper and lower jaws is 1.2 mm.

[0036] In simulating mouth opening and closing movements, the maxilla is fixed, while the mandible rotates around a reference point. The mandibular rotation angle is the angle at which the user opens and closes their mouth. The user's mandibular rotation angle can be determined based on the first rotation radius and standard thickness. Specifically, the mandibular rotation angle can be calculated using the following formula: Where D is the standard bite height determined according to the standard thickness (e.g., 1.2 mm), A is the mandibular rotation angle, and R1 is the first rotation radius.

[0037] S104. Based on the mandibular rotation angle, determine the correction amount of the orthodontic appliance on the tooth to be adjusted, wherein the tooth to be adjusted is a tooth in the user's oral cavity other than the target tooth.

[0038] The teeth to be adjusted can be the teeth in the user's mouth that need correction, or teeth that are affected by the correction of the teeth as the treatment progresses. For example, ... Figure 2 As shown, Figure 2 This is a schematic diagram of a tooth provided for an embodiment of this application. The target tooth is... Figure 2 The seventh tooth in the upper middle jaw is to be adjusted to the fourth, fifth, and sixth teeth in the upper jaw.

[0039] During orthodontic treatment, gaps may appear between the orthodontic appliance and the teeth to be adjusted, preventing the appliance from fitting snugly. The amount of correction the appliance makes on the teeth to be adjusted is the height of the gap between the appliance and the teeth. This amount of correction can be determined by the angle of mandibular rotation.

[0040] S105. Adjust the height of the attachment corresponding to the tooth to be adjusted based on the orthodontic amount.

[0041] The attachment is a support structure for the orthodontic appliance, which can be placed between the appliance and the teeth. For example... Figure 3 As shown, Figure 3 This is a schematic diagram of a tooth and its attachments provided in an embodiment of this application. Figure 3 The figure-eight-shaped structure on the middle teeth is a type of attachment, and the specific shape of the attachment can be determined by the shape of the tooth surface. For example... Figure 4 As shown, Figure 4 This is a partial schematic diagram of an orthodontic appliance provided in an embodiment of this application. Figure 4 It is known that the surface shape of the orthodontic appliance is consistent with the shape of the teeth and attachments, so that when the user wears the orthodontic appliance, it can fit with the attachments and be fixed to the teeth.

[0042] In this embodiment, the attachment corresponding to the tooth to be adjusted can be placed on the tooth to be adjusted and / or on the corresponding reference tooth. If the attachment corresponding to the tooth to be adjusted is placed on the tooth to be adjusted or the corresponding reference tooth, the height of the attachment is equal to the amount of correction; if attachments are placed on both the tooth to be adjusted and the reference tooth, the sum of the heights of the two attachments should be equal to the amount of correction.

[0043] The height of the attachments to the tooth to be adjusted can be equal to the orthodontic amount, or it can be adjusted accordingly. For example, the height of the attachments to the tooth to be adjusted can be adjusted linearly based on the orthodontic amount, or the height of the attachments to the tooth to be adjusted can be determined based on the mapping relationship between the orthodontic amount and the attachment height.

[0044] Since the thickness of orthodontic appliances is relatively fixed, the height of the attachments corresponding to the teeth to be adjusted can be changed by adjusting the amount of adjustment. This can eliminate the gap between the orthodontic appliance and the teeth, allowing the teeth to fit closely with the orthodontic appliance through the attachments, thereby improving the alignment of the upper and lower jaws and ensuring stable occlusal contact between the user's upper and lower jaws.

[0045] The attachment adjustment method proposed in this application identifies the user's mandibular rotation reference point and the current position of the target teeth. This allows the user's teeth to be integrated into the orthodontic process, ensuring precise adjustment of the orthodontic attachments based on tooth position even at different stages of treatment, thereby improving efficiency and accuracy. Based on the current position and mandibular rotation reference point, a first rotation radius of the target teeth is determined, providing a precise basis for mandibular rotation angle and improving attachment adjustment accuracy. Then, the standard thickness of the orthodontic appliance is obtained. Based on the first rotation radius and standard thickness, the user's mandibular rotation angle is determined. This allows for determining the corresponding mandibular rotation angle while meeting the appliance thickness requirements, ensuring that the subsequently determined correction amount eliminates the gap between the orthodontic appliance and the teeth to be adjusted, resulting in a better fit. Finally, based on the mandibular rotation angle, the correction amount of the orthodontic appliance on the teeth to be adjusted is determined, and the height of the attachments corresponding to the teeth to be adjusted is adjusted accordingly. This achieves the matching of the attachment height and the amount of correction of the orthodontic appliance, allowing the appliance to fit closely to the teeth through the attachment, preventing the second molar from being passively depressed due to point contact, and improving the alignment of the upper and lower jaws. This ensures that the upper and lower jaws can maintain stable occlusal contact during the wearing of the orthodontic appliance, thereby stabilizing the temporomandibular joint, guiding jawbone growth and remodeling, and improving orthodontic efficiency and accuracy.

[0046] In some embodiments of this application, the process of determining the amount of correction of the orthodontic appliance on the tooth to be adjusted based on the mandibular rotation angle may specifically include: obtaining the second rotation radius of the tooth to be adjusted; determining the vertical opening amount of the tooth to be adjusted based on the second rotation radius and the mandibular rotation angle; and determining the amount of correction of the orthodontic appliance on the tooth to be adjusted based on the vertical opening amount and the standard thickness.

[0047] The second rotation radius is the linear distance between the tooth to be adjusted and the mandibular rotation reference point. This second rotation radius can also be determined in the manner described above using the mandibular rotation reference point and the position of the tooth to be adjusted.

[0048] During the simulation of opening and closing the mouth, the movement of the teeth is a simultaneous movement of the entire dentition. Therefore, it can be understood that the rotation angle of the teeth to be adjusted is the same at different positions; that is, the rotation angle of each tooth to be adjusted is the mandibular rotation angle determined based on the target tooth. However, the second rotation radius of the tooth to be adjusted is related to the center of rotation and the position of the tooth; therefore, the second rotation radius of the tooth to be adjusted differs at different positions.

[0049] The vertical opening of the tooth to be adjusted can be determined based on the second rotation radius and the mandibular rotation angle. The specific calculation formula is as follows: Wherein, the vertical opening amount is C, the second rotation radius is R2, and the mandibular rotation angle is A.

[0050] After calculating the vertical opening, the corrective amount of the orthodontic appliance on the teeth to be adjusted can be determined based on the vertical opening and the standard thickness. Specifically, since the standard thickness is the thickness of a single orthodontic appliance, when the upper and lower teeth bite together, the standard occlusal height is twice the standard thickness. Therefore, subtracting the vertical opening from the standard occlusal height gives the corrective amount of the orthodontic appliance on the teeth to be adjusted.

[0051] For example, if the standard thickness of an orthodontic appliance is 0.6mm, then the standard occlusal height is 1.2mm, and the vertical opening of the tooth to be adjusted is 1.4mm, then the correction amount of the orthodontic appliance on the tooth to be adjusted is 1.4mm minus 1.2mm, which is 0.2mm.

[0052] This embodiment determines the vertical opening amount of the tooth to be adjusted by using the second rotation radius and the mandibular rotation angle. Then, based on the vertical opening amount and the standard thickness, the correction amount of the orthodontic appliance on the tooth to be adjusted is determined. The gap between the orthodontic appliance and the tooth can be eliminated by the correction amount, so that the orthodontic appliance can fit tightly with the tooth through the attachment, thereby ensuring stable occlusal contact of the upper and lower teeth after wearing the orthodontic appliance.

[0053] In some embodiments of this application, the process of determining the amount of correction of the orthodontic appliance on the tooth to be adjusted based on the mandibular rotation angle may specifically include: determining a first spatial position of the tooth to be adjusted based on the mandibular rotation angle; determining an occlusal plane based on the tooth to be adjusted; identifying a second spatial position of the user-calibrated tooth based on the occlusal plane, wherein the calibrated tooth is a tooth positioned relative to the tooth to be adjusted; and determining the amount of correction of the orthodontic appliance on the tooth to be adjusted based on the first spatial position, the second spatial position, and the standard thickness.

[0054] The first spatial position refers to the position of the tooth to be adjusted in the spatial coordinate system. Specifically, a three-dimensional coordinate system can be established based on the mandibular rotation reference point to obtain the initial three-dimensional coordinates of the tooth to be adjusted. These initial three-dimensional coordinates are the coordinates of the initial position of the tooth to be adjusted in the three-dimensional coordinate system. The initial three-dimensional coordinates are then transformed according to the mandibular rotation angle to obtain the first spatial position of the tooth to be adjusted.

[0055] In some implementations, the relative positional relationship between the mandible and the maxilla can also be obtained. Based on this relative positional relationship and the second rotation radius of the tooth to be adjusted, the first spatial position of the tooth to be adjusted is verified and corrected to obtain a more accurate first spatial position.

[0056] The occlusal plane can be determined based on the teeth to be adjusted. Specifically, at least three reference points are selected based on the teeth to be adjusted, and the occlusal plane is determined based on these at least three reference points.

[0057] In some implementations, multiple teeth along the same jawbone direction as the tooth to be adjusted can be selected as candidate teeth. That is, if the tooth to be adjusted is a maxillary tooth, then all candidate teeth are maxillary teeth; if the tooth to be adjusted is a mandibular tooth, then all candidate teeth are mandibular teeth. The occlusal plane is determined based on these candidate teeth and the tooth to be adjusted. For example, based on the tooth to be adjusted and the candidate teeth, three dental protrusions (such as the most prominent lingual protrusion of the posterior teeth, the lingual cusp protrusion, and the protrusion of the anterior teeth) can be selected, and the occlusal plane can be determined based on these three dental protrusions.

[0058] In this context, the reference tooth is the tooth whose position is relative to the tooth to be adjusted, and the relative position is the position along a coordinate axis perpendicular to the occlusal plane. That is, starting from the tooth to be adjusted, the reference tooth can be found along a direction perpendicular to the occlusal plane.

[0059] For example, if the tooth to be adjusted is a maxillary tooth, then the designated tooth is the mandibular tooth positioned opposite the maxillary tooth. Figure 2 For example, if the teeth to be adjusted are Figure 2 The fourth tooth in the middle and upper jaw is then designated as the fourth tooth in the lower jaw that corresponds to the fourth tooth in the upper jaw.

[0060] After determining the reference tooth corresponding to the tooth to be adjusted, the second spatial position of the reference tooth can also be determined using a spatial coordinate system established based on the mandibular rotation reference point. The distance between the reference tooth and the tooth to be adjusted is calculated based on the first and second spatial distances. Subtracting this distance from the standard occlusal height corresponding to the standard thickness yields the orthodontic appliance's correction amount on the tooth to be adjusted.

[0061] This embodiment determines the amount of correction of the orthodontic appliance on the teeth to be adjusted by calibrating the spatial position of the teeth and the teeth to be adjusted. It also achieves accurate determination of the amount of correction, so that the attachment height determined by the amount of correction can eliminate the gap between the orthodontic appliance and the teeth, so that the orthodontic appliance can fit the teeth more closely through the attachment, thereby improving the accuracy and efficiency of correction.

[0062] In some embodiments of this application, the process of determining the correction amount of the orthodontic appliance on the tooth to be adjusted based on the first spatial position, the second spatial position, and the standard thickness may include: dividing the occlusal plane into multiple calibration points based on the tooth to be adjusted, with one calibration tooth corresponding to at least two calibration points on the occlusal plane for one tooth to be adjusted; determining the positions of the at least two calibration points based on the first spatial position; and determining the correction amount of the orthodontic appliance on the tooth to be adjusted based on the second spatial position, the positions of the at least two calibration points, and the standard thickness.

[0063] Because the surface of each tooth is uneven, while the occlusal plane is usually flat, the distance from the occlusal plane of the tooth to be adjusted to different points on each reference tooth will vary. By dividing the occlusal plane according to the tooth to be adjusted, multiple reference points can be obtained. Each tooth to be adjusted has at least two reference points on the occlusal plane, and each reference tooth corresponds to at least two reference points for the tooth to be adjusted. For example, based on the number of teeth to be adjusted, the occlusal plane can be meshed to obtain multiple reference points for each tooth on the occlusal plane. Based on the first spatial position of the tooth to be adjusted, the positions of at least two reference points on the occlusal plane can be determined.

[0064] It should be noted that the occlusal plane is parallel to the plane of the attachments to the tooth to be adjusted. In this embodiment, the occlusal plane is located near the tooth to be adjusted and far from the reference tooth. Therefore, in some examples, the reference point on the occlusal plane can be understood as a pre-defined point on the plane of the attachments to the tooth to be adjusted (i.e., the occlusal plane coincides with the plane of the attachments to the tooth to be adjusted). Thus, the amount of correction by the orthodontic appliance on the tooth to be adjusted can be determined by the distance between the reference point on the occlusal plane and the reference tooth.

[0065] Calculate the distance between at least two calibration points corresponding to the tooth to be adjusted and the second spatial position of the calibration tooth. The correction amount of the orthodontic appliance on the tooth to be adjusted can be calculated based on the difference between the distance and the standard thickness.

[0066] This embodiment uses the occlusal plane to determine multiple calibration points, which allows for precise determination of the distance between the calibration teeth and the teeth to be adjusted, further improving the accuracy of the orthodontic treatment.

[0067] In some embodiments of this application, the process of determining the correction amount of the orthodontic appliance on the tooth to be adjusted based on the second spatial position, the positions of the at least two calibration points, and the standard thickness may specifically include: determining the shortest distance between the at least two calibration points and the calibration tooth in a direction perpendicular to the occlusal plane, based on the positions of the at least two calibration points and the second spatial position; and determining the correction amount of the orthodontic appliance on the tooth to be adjusted based on the shortest distance and the standard thickness.

[0068] In this embodiment, since there are multiple calibration points corresponding to a tooth to be adjusted, the shortest distance between each of the at least two calibration points and the calibration tooth in the direction perpendicular to the occlusal plane can be determined based on the positions of at least two calibration points and the second spatial position of the calibration tooth. Then, by subtracting this shortest distance from the standard thickness, the correction amount of the orthodontic appliance on the tooth to be adjusted can be obtained.

[0069] Similarly, it is understood that when calculating the correction amount in this embodiment, the standard occlusal height can also be determined by the standard thickness, and the shortest distance can be subtracted from the standard occlusal height to obtain the correction amount of the orthodontic appliance on the tooth to be adjusted.

[0070] In some embodiments of this application, the process of determining the first rotation radius of the target tooth based on the current position and the mandibular rotation reference point may specifically include: acquiring the user's oral cavity image, constructing a virtual jaw model based on the oral cavity image, and determining the first rotation radius of the target tooth based on the virtual jaw model, the historical position, and the current position.

[0071] Among them, oral imaging refers to medical images generated by scanning the user's oral cavity, and virtual jaw model is a three-dimensional model generated by modeling the user's jaw and face based on oral imaging.

[0072] In this embodiment, multiple key points can be marked in the oral imaging. For example, the lower incisor (LI), upper incisor (UI), and mandibular rotation reference point are marked as key points in the oral imaging. Each marked key point is matched to a preset initial 3D jaw model to obtain a virtual jaw model. The feature points in this virtual jaw model are matched one-to-one with each key point in the oral imaging.

[0073] In the virtual jaw model, a feature point matching the mandibular rotation reference point is used as the central feature point, and a feature point matching the current position of the target tooth is used as the target feature point. The linear spatial distance from the central feature point to the target feature point is calculated, which yields the first rotation radius of the target tooth.

[0074] In some embodiments of this application, the process of adjusting the height of the attachment corresponding to the tooth to be adjusted based on the orthodontic amount may specifically include: obtaining the target position of the tooth to be adjusted; determining the offset of the tooth to be adjusted based on the target position and the current position; and adjusting the height of the attachment corresponding to the tooth to be adjusted based on the offset and the orthodontic amount.

[0075] As the orthodontic treatment progresses, the position of the tooth to be adjusted will shift, causing a change in its position. Therefore, in this embodiment, the target position is the location where the tooth to be adjusted needs to be moved. For example, in the current first orthodontic stage, if the current position of the tooth to be adjusted in the oral cavity or virtual articulator model is position 'a', then the target position could be position 'c' of the tooth to be adjusted in the oral cavity or virtual articulator model in the second, third, or nth orthodontic stage.

[0076] Based on the obtained target and current positions, the offset of the tooth to be adjusted can be determined at different orthodontic stages. Based on the offset and the current correction amount, the attachment height of the tooth to be adjusted at different orthodontic stages can be further determined. For example, in the first orthodontic stage, the attachment height corresponding to the tooth to be adjusted is determined to be 0.6 mm based on the correction amount. In the second orthodontic stage, due to tooth position shift, the tooth to be adjusted moves upward by 0.2 mm (0.2 mm is the longitudinal offset in the offset). Therefore, based on this longitudinal offset and the correction amount, the attachment height corresponding to the tooth to be adjusted can be determined to be 0.4 mm in the second orthodontic stage.

[0077] In addition, due to the change in tooth position, the radius of rotation between the tooth and the mandibular rotation reference point may also change. Therefore, in some implementations, the second radius of rotation of the tooth to be adjusted in the next orthodontic stage can be adjusted based on the lateral offset (such as the translation distance of the tooth) and the longitudinal offset, and the height of the attachment can be determined based on the adjusted second radius of rotation.

[0078] This embodiment adjusts the height of the attachments corresponding to the teeth to be adjusted by combining offset and correction, which enables dynamic adjustment and pre-adjustment of the attachments of each orthodontic appliance, reducing the attachment adjustment cycle and improving orthodontic efficiency.

[0079] To facilitate better implementation of the orthodontic appliance accessory adjustment method provided in this application embodiment, this application embodiment also provides an apparatus based on the above-described orthodontic appliance accessory adjustment method. The meanings of the terms used are the same as in the above-described orthodontic appliance accessory adjustment method, and specific implementation details can be found in the description of the method embodiment.

[0080] For example, such asFigure 5 As shown, the accessory adjustment device of the orthodontic appliance may include: an identification module 501, a first confirmation module 502, a second confirmation module 503, a correction module 504, and an accessory adjustment module 505. Among them, The recognition module 501 is used to recognize the user's mandibular rotation reference point and the current position of the user's target tooth; The first confirmation module 502 is used to determine the first rotation radius of the target tooth based on the current position and the mandibular rotation reference point; The second confirmation module 503 is used to obtain the standard thickness of the orthodontic appliance and determine the mandibular rotation angle of the user based on the first rotation radius and the standard thickness. The correction module 504 is used to determine the correction amount of the orthodontic appliance on the tooth to be adjusted based on the mandibular rotation angle, wherein the tooth to be adjusted is a tooth other than the target tooth in the user's oral cavity; The attachment adjustment module 505 is used to adjust the height of the attachment corresponding to the tooth to be adjusted based on the orthodontic amount.

[0081] In one embodiment of this application, the above-mentioned orthodontic module 504 is specifically used to: obtain the second rotation radius of the tooth to be adjusted; The vertical opening amount of the tooth to be adjusted is determined based on the second radius of rotation and the rotation angle of the mandible. The amount of correction of the orthodontic appliance on the tooth to be adjusted is determined based on the vertical opening amount and the standard thickness.

[0082] In one embodiment of this application, the correction module 504 is specifically used for: The first spatial position of the tooth to be adjusted is determined based on the mandibular rotation angle. Based on the teeth to be adjusted, determine the occlusal plane; Based on the occlusal plane, the second spatial position of the user-calibrated tooth is identified, wherein the calibrated tooth is the tooth whose position is relative to the tooth to be adjusted; The amount of correction of the orthodontic appliance on the tooth to be adjusted is determined based on the first spatial position, the second spatial position, and the standard thickness.

[0083] In one embodiment of this application, the correction module 504 is further configured to: The occlusal plane is divided into multiple calibration points based on the tooth to be adjusted, and one calibration tooth corresponds to at least two calibration points of the tooth to be adjusted on the occlusal plane; Based on the first spatial location, determine the positions of the at least two calibration points; The amount of correction of the orthodontic appliance on the tooth to be adjusted is determined based on the second spatial position, the position of the at least two calibration points, and the standard thickness.

[0084] In one embodiment of this application, the correction module 504 is further configured to: In a direction perpendicular to the occlusal plane, the shortest distance between the at least two calibration points and the calibration tooth is determined based on the positions of the at least two calibration points and the second spatial position; The amount of correction of the orthodontic appliance on the tooth to be adjusted is determined based on the shortest distance and the standard thickness.

[0085] In one embodiment of this application, the first confirmation module 502 is specifically used for: Acquire the user's oral cavity images and construct a virtual jaw model based on the oral cavity images; The first rotation radius of the target tooth is determined based on the virtual jaw model, the mandibular rotation reference point, and the current position.

[0086] In one embodiment of this application, the above-mentioned attachment adjustment module 505 is specifically used for: Obtain the target position of the tooth to be adjusted; The offset of the tooth to be adjusted is determined based on the target position and the current position. Based on the offset and the correction amount, adjust the height of the attachment corresponding to the tooth to be adjusted.

[0087] The orthodontic appliance attachment adjustment device proposed in this application, by identifying the user's mandibular rotation reference point and the current position of the target teeth, integrates the current position of the user's teeth into the orthodontic process. This ensures that even at different stages of treatment, the attachments of the orthodontic appliance can be precisely adjusted according to the position of the teeth, thereby improving orthodontic efficiency and accuracy. Based on the current position and the mandibular rotation reference point, a first rotation radius of the target teeth is determined, providing a precise basis for the mandibular rotation angle and improving the accuracy of attachment adjustment. Then, the standard thickness of the orthodontic appliance is obtained. Based on the first rotation radius and the standard thickness, the user's mandibular rotation angle is determined. This allows for the determination of the corresponding mandibular rotation angle while meeting the orthodontic appliance thickness requirements, ensuring that the subsequently determined correction amount eliminates the gap between the orthodontic appliance and the teeth to be adjusted, resulting in a closer fit. Finally, based on the mandibular rotation angle, the correction amount of the orthodontic appliance on the teeth to be adjusted is determined, and the height of the attachments corresponding to the teeth to be adjusted is adjusted accordingly. This achieves the matching of the attachment height and the amount of correction of the orthodontic appliance, allowing the appliance to fit closely to the teeth through the attachment, preventing the second molar from being passively depressed due to point contact, and improving the alignment of the upper and lower jaws. This ensures that the upper and lower jaws can maintain stable occlusal contact during the wearing of the orthodontic appliance, thereby stabilizing the temporomandibular joint, guiding jawbone growth and remodeling, and improving orthodontic efficiency and accuracy.

[0088] In practice, each of the above modules can be implemented as an independent entity or can be combined arbitrarily to be implemented as the same or several entities. For the specific implementation methods and corresponding beneficial effects of each of the above modules, please refer to the previous method embodiments, which will not be repeated here.

[0089] This application also provides an electronic device, which may be a server or a terminal, etc. Figure 6 As shown, it illustrates a structural schematic diagram of the electronic device involved in the embodiments of this application, specifically: The electronic device may include components such as a processor 601 with one or more processing cores, a memory 602 with one or more computer-readable storage media, a power supply 603, and an input unit 604. Those skilled in the art will understand that... Figure 6 The electronic device structure shown does not constitute a limitation on the electronic device and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Wherein: The processor 601 is the control center of the electronic device, connecting various parts of the device via various interfaces and lines. It executes computer programs and / or modules stored in the memory 602, and calls data stored in the memory 602, to perform various functions and process data. Optionally, the processor 601 may include one or more processing cores; preferably, the processor 601 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications, and the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 601.

[0090] The memory 602 can be used to store computer programs and modules. The processor 601 executes various functional applications and data processing by running the computer programs and modules stored in the memory 602. The memory 602 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, computer programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 602 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 602 may also include a memory controller to provide the processor 601 with access to the memory 602.

[0091] The electronic device also includes a power supply 603 that supplies power to the various components. Preferably, the power supply 603 can be logically connected to the processor 601 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 603 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0092] The electronic device may also include an input unit 604, which can be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0093] Although not shown, the electronic device may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 601 in the electronic device loads the executable files corresponding to the processes of one or more computer programs into the memory 602 according to the following instructions, and the processor 601 runs the computer programs stored in the memory 602 to realize various functions, such as: Identify the user's mandibular rotation reference point and the current position of the user's target tooth; Based on the current position and the mandibular rotation reference point, determine the first rotation radius of the target tooth; Obtain the standard thickness of the orthodontic appliance, and determine the mandibular rotation angle of the user based on the first rotation radius and the standard thickness; Based on the mandibular rotation angle, the correction amount of the orthodontic appliance on the tooth to be adjusted is determined, wherein the tooth to be adjusted is a tooth in the user's oral cavity other than the target tooth; Adjust the height of the attachment corresponding to the tooth to be adjusted based on the orthodontic amount.

[0094] For details on the specific implementation methods and corresponding beneficial effects of each of the above operations, please refer to the detailed description of the orthodontic appliance adjustment method above, which will not be repeated here.

[0095] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by a computer program, or by a computer program controlling related hardware. The computer program can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0096] Therefore, embodiments of this application provide a computer-readable storage medium storing a computer program that can be loaded by a processor to execute steps in any of the orthodontic appliance accessory adjustment methods provided in embodiments of this application. For example, the computer program can execute the following steps: Identify the user's mandibular rotation reference point and the current position of the user's target tooth; Based on the current position and the mandibular rotation reference point, determine the first rotation radius of the target tooth; Obtain the standard thickness of the orthodontic appliance, and determine the mandibular rotation angle of the user based on the first rotation radius and the standard thickness; Based on the mandibular rotation angle, the correction amount of the orthodontic appliance on the tooth to be adjusted is determined, wherein the tooth to be adjusted is a tooth in the user's oral cavity other than the target tooth; Adjust the height of the attachment corresponding to the tooth to be adjusted based on the orthodontic amount.

[0097] For details on the specific implementation methods and corresponding beneficial effects of the above operations, please refer to the previous embodiments, which will not be repeated here.

[0098] The computer-readable storage medium may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0099] Since the computer program stored in the computer-readable storage medium can execute the steps in the attachment adjustment method of any of the orthodontic appliances provided in the embodiments of this application, the beneficial effects that the attachment adjustment method of any of the orthodontic appliances provided in the embodiments of this application can achieve can be realized, as detailed in the preceding embodiments, and will not be repeated here.

[0100] According to one aspect of this application, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the aforementioned orthodontic appliance adjustment method.

[0101] The foregoing has provided a detailed description of an orthodontic appliance accessory adjustment method, apparatus, electronic device, and computer-readable storage medium provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An attachment adjustment method of an orthodontic appliance, characterized by, The accessory is a heightening structure of the orthodontic appliance, and the method comprises: identifying a mandible rotation reference point of a user and a current position of a target tooth of the user; determining a first rotation radius of the target tooth according to the current position and the mandible rotation reference point; obtaining a standard thickness of the orthodontic appliance, and determining a mandible rotation angle of the user according to the first rotation radius and the standard thickness; determining an orthodontic amount of the orthodontic appliance on a tooth to be adjusted according to the mandible rotation angle, the tooth to be adjusted being a tooth other than the target tooth in the oral cavity of the user; adjusting a height of an accessory corresponding to the tooth to be adjusted based on the orthodontic amount.

2. The method of claim 1, wherein the attachment of the orthodontic appliance is adjusted by, The determination of the orthodontic amount of the orthodontic appliance on the tooth to be adjusted according to the mandible rotation angle comprises: obtaining a second rotation radius of the tooth to be adjusted; determining a vertical opening amount of the tooth to be adjusted according to the second rotation radius and the mandible rotation angle; determining the orthodontic amount of the orthodontic appliance on the tooth to be adjusted according to the vertical opening amount and the standard thickness.

3. The method of claim 1, wherein the attachment of the orthodontic appliance is adjusted by, The determination of the orthodontic amount of the orthodontic appliance on the tooth to be adjusted according to the mandible rotation angle comprises: determining a first spatial position of the tooth to be adjusted according to the mandible rotation angle; determining a bite plane based on the tooth to be adjusted; identifying a second spatial position of a calibration tooth of the user according to the bite plane, the calibration tooth being a tooth in a relative position to the tooth to be adjusted; determining the orthodontic amount of the orthodontic appliance on the tooth to be adjusted according to the first spatial position, the second spatial position and the standard thickness.

4. The method of claim 3, wherein the attachment of the orthodontic appliance is adjusted by, The determination of the orthodontic amount of the orthodontic appliance on the tooth to be adjusted according to the first spatial position, the second spatial position and the standard thickness comprises: dividing the bite plane into a plurality of calibration points according to the tooth to be adjusted, one calibration tooth corresponding to at least two calibration points of the tooth to be adjusted on the bite plane; determining positions of the at least two calibration points according to the first spatial position; determining the orthodontic amount of the orthodontic appliance on the tooth to be adjusted according to the second spatial position, the positions of the at least two calibration points and the standard thickness.

5. The method of claim 4, wherein the attachment of the orthodontic appliance is adjusted by, The determination of the orthodontic amount of the orthodontic appliance on the tooth to be adjusted according to the second spatial position, the positions of the at least two calibration points and the standard thickness comprises: determining shortest distances between the at least two calibration points and the calibration tooth in a direction perpendicular to the bite plane according to the positions of the at least two calibration points and the second spatial position; determining the orthodontic amount of the orthodontic appliance on the tooth to be adjusted according to the shortest distances and the standard thickness.

6. The method of claim 1, wherein, The determination of the first rotation radius of the target tooth according to the current position and the mandible rotation reference point comprises: obtaining an oral cavity image of the user, and constructing a virtual jaw model based on the oral cavity image; According to the virtual jaw model, the mandible rotation reference point and the current position, a first rotation radius of the target tooth is determined.

7. The method of claim 1, wherein the attachment of the orthodontic appliance is adjusted by, The adjusting the height of the attachment corresponding to the tooth to be adjusted based on the correction amount comprises: obtaining a target position of the tooth to be adjusted; According to the target position and the current position, an offset amount of the tooth to be adjusted is determined; According to the offset amount and the correction amount, the height of the attachment corresponding to the tooth to be adjusted is adjusted.

8. An attachment adjustment device for an orthodontic appliance, characterized by Comprise: The identification module is used for identifying the mandible rotation reference point of the user and the current position of the target tooth of the user; The first confirmation module is used for determining a first rotation radius of the target tooth according to the current position and the mandible rotation reference point; The second confirmation module is used for obtaining a standard thickness of the orthodontic appliance, and determining a mandible rotation angle of the user according to the first rotation radius and the standard thickness; The correction module is used for determining a correction amount of the orthodontic appliance on the tooth to be adjusted according to the mandible rotation angle, the tooth to be adjusted being a tooth other than the target tooth in the oral cavity of the user; The attachment adjustment module is used for adjusting the height of the attachment corresponding to the tooth to be adjusted based on the correction amount.

9. An electronic device, comprising: The computer readable storage medium stores a computer program, and the computer program is suitable for being loaded by the processor to execute the attachment adjustment method of the orthodontic appliance.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and the computer program is suitable for being loaded by the processor to execute the attachment adjustment method of the orthodontic appliance.

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