Surgical guide plate for periodontal auxiliary accelerated osteogenesis orthodontic treatment and manufacturing method thereof

By acquiring and reconstructing oral CBCT data, designing and 3D printing of surgical guides for periodontal assisted accelerated osteogenic orthodontic treatment, the problem of inaccurate and difficult surgical positioning is solved, and precise surgical operation and personalized treatment are achieved.

CN120436725AActive Publication Date: 2025-08-08长沙市口腔医院
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Patent Information

Application Number
CN202510514587.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2025-08-08
Estimated Expiration
2045-04-23

AI Technical Summary

Technical Problem

In the existing treatment of periodontal assisted accelerated osteogenesis orthodontics, the surgical area positioning accuracy is low, the operation is difficult, and accurate positioning methods and auxiliary tools are lacking.

Method used

By obtaining oral CBCT data and oral scanning dentition data, reconstructing and fitting three-dimensional data, designing retention structural models and positioning structural models, and using 3D printing technology to manufacture bone cortical incision limiting guide plates and bone incremental limiting guide plates, providing accurate bone cortical incision position and bone meal filling guidance.

Benefits of technology

It improves the positioning accuracy of the surgical area, reduces the difficulty of the surgery, reduces the risk of damage to surrounding tissues, meets personalized treatment needs, and improves the treatment effect and patient comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an operation guide plate for periodontal auxiliary accelerated osteogenesis orthodontic treatment and a manufacturing method thereof. The manufacturing method comprises the following steps: designing a retention structure model covering the surfaces of dental crowns of all target teeth and adjacent teeth on dentition data after undercut filling according to full-mouth dentition tooth root three-dimensional data; respectively designing a first positioning structure model and a second positioning structure model which are connected with the retention structure model on the buccal bone surface of the jaw three-dimensional data; designing a linear opening area on the first positioning structure model according to the full-mouth dentition tooth root three-dimensional data, obtaining a bone cortex incision line positioning structure model, and obtaining bone cortex incision limiting guide plate data and bone increment limiting guide plate data; printing is conducted based on the bone cortex incision limiting guide plate data and the bone increment limiting guide plate data, and the bone cortex incision limiting guide plate and the bone increment limiting guide plate are obtained. The positioning accuracy of the operation area can be improved, and the operation difficulty is reduced.
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Description

Technical Field

[0001] The present invention belongs to the field of oral technology, and in particular relates to a surgical guide plate for periodontal-assisted accelerated osteogenesis orthodontic treatment and a manufacturing method thereof. Background Art

[0002] In traditional orthodontic treatment, tooth movement typically occurs at a rate of 0.8 to 1.2 mm per month, and orthodontic treatment typically lasts approximately two years, or even longer. Generally speaking, the longer the orthodontic treatment, the greater the likelihood of developing caries, periodontal disease, and root resorption, and the worse the patient's compliance, which is one of the reasons some patients are reluctant to undergo orthodontic treatment. Therefore, accelerating orthodontic tooth movement and shortening treatment duration have become research hotspots both domestically and internationally in recent years.

[0003] Currently, there are three main methods for accelerating orthodontic tooth movement: pharmacological, physical, and surgical. Surgical methods are further categorized into various types, among which periodontally accelerated osteogenic orthodontics (PAOO) has been shown to effectively accelerate tooth movement in both clinical and basic research, and its clinical application is increasing. This technique, developed based on the theory of local acceleration, has undergone several refinements over the years of its development. It is currently believed that PAOO can accelerate tooth movement, shorten treatment duration, reduce root resorption, increase alveolar bone volume, achieve differential tooth movement, and enhance postoperative stability.

[0004] PAOO refers to orthodontic treatment involving the labial and lingual cortical incision and drilling around the tooth to be moved, followed by the placement of bone graft material in the surgical area to accelerate orthodontic treatment. While the concept of PAOO as a tool for tooth movement has been around for over a century, it wasn't until the past decade that PAOO began to be used clinically. As early as 1893, Bryan first described the use of cortical incisions to assist tooth movement. It wasn't until 1959 that Kole detailed cortical incisions and introduced them as a method for accelerating tooth movement. He believed that the primary resistance to tooth movement was the alveolar cortical bone, and that disrupting the continuity of this cortical bone was the key to accelerating tooth movement. Kole's procedure involved a complete vertical cortical incision on the buccal and lingual sides of the target tooth, followed by a subapical horizontal osteotomy, creating a single, integrated bone block for movement, known as the "block movement theory." Kole's block movement theory remained popular for 40 years, establishing itself as a 20th-century theoretical approach to accelerating tooth movement. However, due to its high invasiveness, Kole's procedure was not widely used clinically, and numerous researchers subsequently refined it. At the beginning of the 21st century, Wilcko et al. proposed rapid osteogenesis orthodontic treatment (AOO) and later periodontal-assisted accelerated osteogenesis (PAOO) based on this.

[0005] PAOO technology can effectively accelerate tooth movement, but the surgical operation is difficult. When performing cortical bone incision, the doctor needs to judge the incision range and position based on experience, and there is a lack of accurate positioning means, which increases the difficulty of the operation. At the same time, in the bone grafting process, there is a lack of effective auxiliary tools for judging the bone powder filling situation, making it difficult to ensure the filling effect. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment and a method for manufacturing the same, so as to solve the problems of low surgical area positioning accuracy and high surgical difficulty in the existing technology.

[0007] According to one aspect of the present application, a method for manufacturing a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment is disclosed, the method comprising:

[0008] After acquiring oral CBCT data and oral scan dentition data, reconstructing the oral CBCT data to obtain full-mouth dentition root three-dimensional data, dentition three-dimensional data, and jaw three-dimensional data, and performing position fitting on the oral scan dentition data and the dentition three-dimensional data to obtain positioned dentition data;

[0009] Filling the undercuts on the positioned dentition data to obtain undercut-filled dentition data, and designing a retention structure model covering the crown surfaces of the target tooth and its adjacent teeth on the undercut-filled dentition data based on the three-dimensional data of tooth roots of the full mouth dentition;

[0010] A first positioning structure model and a second positioning structure model connected to the retention structure model are respectively designed on the buccal bone surface of the mandibular three-dimensional data, wherein the first positioning structure model covers the root of the target tooth and fits the cortical bone surface of the target tooth, and the second positioning structure model covers the root of the target tooth and has a preset bone surface distance with the alveolar bone surface of the target tooth;

[0011] Designing a linear opening area on the first positioning structure model according to the three-dimensional data of the full-mouth dentition tooth roots to obtain a cortical incision line positioning structure model;

[0012] The data corresponding to the retention structure model and the cortical incision line positioning structure model are exported to obtain the cortical incision limiting guide plate data; the data corresponding to the retention structure model and the second positioning structure model are exported to obtain the bone augmentation limiting guide plate data; and the cortical incision limiting guide plate data and the bone augmentation limiting guide plate data are printed respectively to obtain the cortical incision limiting guide plate and the bone augmentation limiting guide plate.

[0013] In some embodiments, after acquiring oral CBCT data and oral scan dentition data, reconstructing the oral CBCT data to obtain full-mouth dentition root three-dimensional data, dentition three-dimensional data, and jaw three-dimensional data, and performing position fitting on the oral scan dentition data and the dentition three-dimensional data to obtain positioned dentition data; including:

[0014] Importing the oral CBCT data into RadiantViewer software to reconstruct the full-mouth dentition root three-dimensional data, dentition three-dimensional data, and jaw three-dimensional data;

[0015] The oral scan dental arch data is imported into RadiantViewer software, and the coordinates of the oral scan dental arch data are moved to be consistent with the coordinates of the dental arch three-dimensional data to obtain the positioned dental arch data.

[0016] In some embodiments, the method further includes: exporting the full-mouth dentition root three-dimensional data, the positioned dentition data and the jaw three-dimensional data from the RadiantViewer software and importing them into EXOCAD software, and designing a retention structure model, a first positioning structure model, a cortical bone incision line positioning structure model and a second positioning structure model in the EXOCAD software.

[0017] In some embodiments, the bone surface distance between the first positioning structure model and the alveolar bone surface of the target tooth is in the range of 0.5-1 mm.

[0018] In some embodiments, the preset bone surface distance ranges from 1.5 to 2.5 mm, and the preset bone surface distance is determined by the root of the target tooth and the surface structure of the alveolar bone thereof.

[0019] In some embodiments, the design process of the linear opening area is as follows:

[0020] A line connecting the midpoints of two oppositely disposed root surfaces of two adjacent target teeth is determined, and a linear opening area located between the two oppositely disposed root surfaces of the two adjacent target teeth is designed with the midpoint on the line as the center.

[0021] In some embodiments, the cortical bone cutting limit guide is used to assist in determining the incision position of the cortical bone during periodontal-assisted accelerated osteogenesis orthodontic treatment, and the bone augmentation limit guide is used to assist in determining the bone powder filling amount during periodontal-assisted accelerated osteogenesis orthodontic treatment.

[0022] In some embodiments, a window is designed at the crown position of part of the target tooth and its adjacent teeth on the retention structure model corresponding to the cortical bone cutting limiting guide plate data.

[0023] In some embodiments, the cortical bone cutting limit guide data and the bone augmentation limit guide are both 3D printed using resin or metal.

[0024] According to another aspect of the present application, a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment is also disclosed. The surgical guide is manufactured using the method for manufacturing a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment described in any of the above items. The surgical guide includes a cortical incision limiting guide and a bone augmentation limiting guide. The cortical incision limiting guide is used to determine the surgical area, and the surgical area includes a cortical incision position determined based on the edge of the cortical incision line positioning structure and an alveolar bone drilling position positioned based on the linear opening area; the bone augmentation limiting guide is used to determine a preset bone surface distance of the target tooth, and the preset bone surface distance is determined based on the root of the target tooth and its alveolar bone surface structure.

[0025] The present invention includes but is not limited to the following beneficial effects: (1) The present invention can accurately obtain relevant three-dimensional data by acquiring oral CBCT data and oral scan dentition data and reconstructing and fitting. The retention structure model, positioning structure model, etc. designed on this basis can accurately locate the target teeth and tooth roots, alveolar bones, etc., improve the positioning accuracy of the surgical area, reduce the uncertainty caused by empirical operation during the operation, and the obtained cortical bone incision limiting guide plate can be used to assist in the retention of the valve after opening during the operation, providing a clear surgical field of view for the surgical area; (2) This solution can select bone augmentation limiting guide plates with different preset bone surface distances according to different patient conditions, and make more suitable bone augmentation limiting guide plates for different root and alveolar bone surface conditions. It is helpful to observe the filling status of bone powder; (3) This scheme can not only determine the position of the cortical incision through the two edges of the cortical incision line positioning structure in the cortical incision limiting guide, but also locate the position of the alveolar bone drilling through the linear opening area in the cortical incision limiting guide, thereby improving the positioning accuracy of the surgical area and reducing the difficulty of the operation; (4) Using RadiantViewer software to reconstruct oral CBCT data, it can more accurately obtain the three-dimensional data of the root of the full mouth dentition, the three-dimensional data of the dentition and the three-dimensional data of the jaw; at the same time, the oral scan dentition data is imported into the software and the coordinate movement fitting is performed, which can more accurately obtain the positioned dentition data, provide an accurate data basis for the subsequent surgical guide design, and help Improve the adaptability of the surgical guide to the actual structure of the oral cavity; (5) This solution determines the bone surface distance range between the first positioning structure model and the alveolar bone surface and the second positioning structure model. The appropriate distance setting helps the surgical guide to accurately fit the target area during surgery, provides accurate positioning and reference for operations such as cortical bone incision and bone augmentation, improves the accuracy of surgical operations, and reduces surgical errors. The preset bone surface distance is determined by the root of the target tooth and its alveolar bone surface structure. Taking into account the differences in individual oral structures, the surgical guide can better adapt to the oral conditions of different patients, meet personalized treatment needs, and improve treatment effects and patient comfort; (6) By determining the line connecting the midpoints of the root surfaces of adjacent target teeth and their midpoints, the linear The opening area can improve the positioning accuracy of the alveolar bone drilling position, improve the accuracy of the cortical bone incision operation guidance, improve the accuracy and standardization of the operation, reduce the blindness of the surgical operation, and design the linear opening area based on the surface position relationship of the root, fully considering the anatomical structure characteristics of the oral teeth and roots, so that the surgical guide can better fit the actual structure of the oral cavity, which helps the surgical operation to proceed smoothly and reduce the risk of damage to the surrounding tissues; (7) By designing windows at the crown positions of some target teeth and adjacent teeth in the retention structure model, the target area can be observed and operated more directly and clearly during the operation, which facilitates the entry and exit of instruments, helps to improve the convenience and accuracy of the surgical operation, and reduces the operation time and unnecessary interference with the surrounding tissues. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments or the prior art.

[0027] Figure 1 This is a flow chart of a method for making a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to an embodiment of the present application;

[0028] Figure 2 A schematic diagram of a retention structure model and a first positioning structure model of a method for manufacturing a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to an embodiment of the present application;

[0029] Figure 3 This is another schematic diagram of the retention structure model and the first positioning structure model of the method for manufacturing a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to an embodiment of the present application;

[0030] Figure 4 A schematic diagram of a retention structure model and a cortical bone incision line positioning structure model for a method for making a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to an embodiment of the present application;

[0031] Figure 5 Another schematic diagram of the retention structure model and the cortical incision line positioning structure model of the method for making a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to an embodiment of the present application;

[0032] In the figure, 1-retention structure model; 2-first positioning structure model; 3-cortical incision line positioning structure model; 4-linear opening area; 5-window. DETAILED DESCRIPTION

[0033] The terms "first," "second," "third," "fourth," and the like (if any) in the description and claims of the present invention and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" or "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatus.

[0034] For ease of understanding, the specific process of the embodiment of the present invention is described below. Specifically, Figure 1This is a flow chart of a method for making a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to an embodiment of the present application:

[0035] S100, after acquiring oral CBCT data and oral scan dentition data, reconstruct the oral CBCT data to obtain full-mouth dentition root three-dimensional data, dentition three-dimensional data and jaw three-dimensional data, and perform position fitting on the oral scan dentition data and the dentition three-dimensional data to obtain positioned dentition data.

[0036] Specifically, CBCT, or cone beam computed tomography, can provide three-dimensional imaging information of the oral and maxillofacial area, covering structures such as the full dentition, tooth roots, and jaws. CBCT data of the oral and maxillofacial area is obtained by shooting CBCT, and the CBCT data is a dicom format file. An intraoral scanner is used to scan the dentition and the surrounding soft tissue to obtain oral scan dentition data. The CBCT data is imported into the RadiantViewer software to reconstruct the full dentition root three-dimensional data, dentition three-dimensional data, and jaw three-dimensional data in STL format. It should be noted that the dentition three-dimensional data is the three-dimensional data of the dentition part extracted from the full dentition root three-dimensional data.

[0037] Furthermore, the oral scan dental data is imported into the RadiantViewer software, and the position fitting is performed with the three-dimensional dental data obtained by CBCT reconstruction, so that the coordinates of the oral scan dental data are consistent with the coordinates of the three-dimensional dental data, and finally the oral scan dental data after positioning is obtained. In the RadiantViewer software, its built-in algorithm plays a key role. The algorithm first identifies and analyzes the imported two-dimensional tomographic images, and distinguishes different structures such as teeth, roots, and jaws based on the differences in the degree of X-ray absorption of different tissues (for example, bones absorb more X-rays and appear brighter on the image; soft tissue absorbs less and appears darker). Then, based on these recognition results, the software stacks and fuses a series of two-dimensional tomographic images according to the spatial position relationship, and gradually constructs three-dimensional data of tooth roots, three-dimensional data of teeth, and three-dimensional data of jaws for the entire mouth.

[0038] Furthermore, in a specific embodiment, the method may also include exporting full-mouth dentition root three-dimensional data, positioned dentition data and jaw three-dimensional data from the RadiantViewer software and importing them into the EXOCAD software, and designing the retention structure model 1, the first positioning structure model 2, the cortical bone incision line positioning structure model 3 and the second positioning structure model in the EXOCAD software.

[0039] Specifically, the reconstructed full-mouth dentition root 3D data, positioned dentition data, and jaw 3D data are exported from the RadiantViewer software. The full-mouth dentition root 3D data, positioned dentition data, and jaw 3D data are then imported into the EXOCAD software, and the subsequent steps are completed in the EXOCAD software. Using the RadiantViewer software to reconstruct oral CBCT data can relatively accurately obtain full-mouth dentition root 3D data, dentition 3D data, and jaw 3D data; at the same time, the oral scan dentition data is imported into the software and coordinate movement fitting is performed, which can relatively accurately obtain the positioned dentition data, providing an accurate data basis for the subsequent surgical guide design, and helping to improve the adaptability of the surgical guide to the actual oral structure.

[0040] It is understandable that by acquiring oral CBCT data and oral scan dentition data and reconstructing and fitting, relevant three-dimensional data can be accurately obtained. The retention structure model 1 and positioning structure model designed on this basis can accurately locate the target tooth, tooth root, alveolar bone, etc., improve the accuracy of positioning in the surgical area, and reduce the uncertainty caused by empirical operation during surgery. In addition, the obtained cortical bone incision limiting guide can be used to assist in the retention of the flap after opening during surgery, providing a clear surgical field of view for the surgical area.

[0041] S102. Fill the undercuts on the positioned dentition data to obtain the undercut-filled dentition data, and design a retention structure model covering the crown surface of the target tooth and its adjacent teeth on the undercut-filled dentition data based on the full-mouth dentition root three-dimensional data.

[0042] Specifically, the undercuts on the repositioned dentition data are removed using EXOCAD software to obtain the undercut-filled dentition data. A retention structure model 1 is designed based on the undercut-filled dentition data. This retention structure model 1 covers the crown surfaces of all target teeth and their adjacent teeth. This allows the retention structure on the printed surgical guide to fit over the patient's target teeth and their adjacent teeth, securing and positioning the surgical guide.

[0043] S104. Design a first positioning structure model and a second positioning structure model connected to the retention structure model on the buccal bone surface of the mandibular three-dimensional data, respectively. The first positioning structure model covers the roots of all target teeth and fits the cortical bone surfaces of all target teeth. The second positioning structure model covers the roots of all target teeth and has a preset bone surface distance with the alveolar bone surfaces of all target teeth.

[0044] In a specific embodiment, the bone surface distance between the first positioning structure model 2 and the alveolar bone surface of all target teeth is in the range of 0.5-1 mm.

[0045] In a specific embodiment, the preset bone surface distance ranges from 1.5 to 2.5 mm, and the preset bone surface distance is determined by the root of the target tooth and the surface structure of the alveolar bone thereof.

[0046] Specifically, refer to Figure 2-5 A first positioning structure model 2 is designed on the buccal bone surface of the mandibular three-dimensional data, which can cover the roots of all target teeth and fit the cortical bone surfaces of all target teeth. The first positioning structure model 2 printed out from the data of the first positioning structure model 2 is extended toward the roots of the target teeth on the basis of the retention structure, and covers the roots of all target teeth, so that the bone surface distance between the first positioning structure model 2 and the alveolar bone surface of all target teeth is 0.5-1mm, which is just enough to make the first positioning structure model 2 fit the cortical bone surfaces of all target teeth. In addition, a second positioning structure model can be designed on the buccal bone surface of the mandibular three-dimensional data, which can cover the roots of all target teeth and have a preset bone surface distance with the alveolar bone surface of all target teeth. The second positioning structure printed out from the data of the second positioning structure model first forms a step-like structure on the basis of the retention structure and then extends toward the root direction of the target tooth. The step-like structure enables the second positioning structure to have a preset bone surface distance with the alveolar bone surface of all target teeth. The preset bone surface distance can avoid excessive or insufficient bone powder filling during periodontal assisted accelerated osteogenesis orthodontic treatment, and can keep the bone surface of the filled alveolar bone smoother. By determining the bone surface distance range between the first positioning structure model 2 and the alveolar bone surface and the preset bone surface range of the second positioning structure model, appropriate distance setting helps the surgical guide to accurately fit the target area during surgery, provide accurate positioning and reference for operations such as cortical bone incision and bone augmentation, improve the accuracy of surgical operations, and reduce surgical errors. The preset bone surface distance is determined by the root of the target tooth and its alveolar bone surface structure. Taking into account the differences in individual oral structures, the surgical guide can better adapt to the oral conditions of different patients, meet personalized treatment needs, and improve treatment effects and patient comfort.

[0047] S106 , designing a linear opening area on the first positioning structure model according to the three-dimensional data of the tooth roots of the full dentition, to obtain a positioning structure model of the cortical incision line.

[0048] In a specific embodiment, the design process of the linear opening area 4 is as follows:

[0049] A line connecting the midpoints of two oppositely disposed root surfaces of two adjacent target teeth is determined, and a linear opening area 4 located between the two oppositely disposed root surfaces of the two adjacent target teeth is designed with the midpoint on the line as the center.

[0050] Specifically, the linear opening area 4 can provide an area for cortical bone incision. After the positions of the retention structure and the cortical bone incision line positioning structure are fixed, the doctor can perform the cortical bone incision step according to the left and right edges of the cortical bone incision line positioning structure, and then perform the alveolar bone drilling step according to the position of the linear opening area 4. By determining the line connecting the midpoints of the root surfaces of adjacent target teeth and their midpoints to design the linear opening area, the positioning accuracy of the alveolar bone drilling position can be improved, the accuracy of the cortical bone incision operation guidance can be improved, the accuracy and standardization of the operation can be improved, and the blindness of the surgical operation can be reduced. In addition, the linear opening area is designed according to the positional relationship of the root surface, and the anatomical structure characteristics of the oral teeth and roots are fully considered, so that the surgical guide can better fit the actual structure of the oral cavity, which helps the surgical operation to proceed smoothly and reduces the risk of damage to surrounding tissues.

[0051] In a specific embodiment, a window 5 is designed at the crown position of a portion of the target tooth and its adjacent teeth on the retention structure model 1 corresponding to the data of the cortical bone cutting limiting guide plate.

[0052] Furthermore, windows 5 are designed at the crown positions of some target teeth and their adjacent teeth on the retention structure model 1 corresponding to the cortical bone incision limit guide data. The windows 5 are used to determine the fit between the tooth tissue surface and the surgical guide. By designing windows at the crown positions of some target teeth and their adjacent teeth on the retention structure model, the target area can be observed and operated more directly and clearly during the operation, which facilitates the entry and exit of instruments, helps to improve the convenience and accuracy of surgical operations, and reduces operation time and unnecessary interference with surrounding tissues.

[0053] S108, exporting the data corresponding to the retention structure model and the cortical incision line positioning structure model to obtain the cortical incision limiting guide data; exporting the data corresponding to the retention structure model and the second positioning structure model to obtain the bone augmentation limiting guide data; and printing the cortical incision limiting guide data and the bone augmentation limiting guide data respectively to obtain the cortical incision limiting guide and the bone augmentation limiting guide.

[0054] In a specific embodiment, the cortical bone incision limiting guide is used to assist in determining the position of the cortical bone incision during periodontal-assisted accelerated osteogenesis orthodontic treatment, and the bone augmentation limiting guide is used to assist in determining the bone powder filling status during periodontal-assisted accelerated osteogenesis orthodontic treatment.

[0055] In a specific embodiment, the cortical bone cutting limiting guide plate data and the bone augmentation limiting guide plate data are arranged in 3D printing equipment software and 3D printing is performed using 3D resin or metal.

[0056] Specifically, after completing the above model design, the data can be exported from EXOCAD software, formatted in 3D printing equipment software, and 3D printed using 3D resin or metal to obtain the cortical bone cutting limit guide and bone augmentation limit guide. These two guides can then be used in periodontal assisted accelerated osteogenesis orthodontic treatment.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for manufacturing a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment, characterized in that: The method comprises: After acquiring oral CBCT data and oral scan dentition data, reconstructing the oral CBCT data to obtain full-mouth dentition root three-dimensional data, dentition three-dimensional data, and jaw three-dimensional data, and performing position fitting on the oral scan dentition data and the dentition three-dimensional data to obtain positioned dentition data; Filling the undercuts on the positioned dentition data to obtain undercut-filled dentition data, and designing a retention structure model covering the crown surfaces of the target tooth and its adjacent teeth on the undercut-filled dentition data based on the three-dimensional data of tooth roots of the full mouth dentition; A first positioning structure model and a second positioning structure model connected to the retention structure model are respectively designed on the buccal bone surface of the mandibular three-dimensional data, wherein the first positioning structure model covers the root of the target tooth and fits the cortical bone surface of the target tooth, and the second positioning structure model covers the root of the target tooth and has a preset bone surface distance with the alveolar bone surface of the target tooth; Designing a linear opening area on the first positioning structure model according to the three-dimensional data of the full-mouth dentition tooth roots to obtain a cortical incision line positioning structure model; The data corresponding to the retention structure model and the cortical incision line positioning structure model are exported to obtain the cortical incision limiting guide plate data; the data corresponding to the retention structure model and the second positioning structure model are exported to obtain the bone augmentation limiting guide plate data; and the cortical incision limiting guide plate data and the bone augmentation limiting guide plate data are printed respectively to obtain the cortical incision limiting guide plate and the bone augmentation limiting guide plate.

2. The method for manufacturing a surgical guide for periodontal assisted accelerated osteogenesis orthodontic treatment according to claim 1, characterized in that: After acquiring the oral CBCT data and the oral scanned dentition data, the oral CBCT data is reconstructed to obtain full-mouth dentition root three-dimensional data, dentition three-dimensional data, and jaw three-dimensional data, and the oral scanned dentition data and the dentition three-dimensional data are positionally fitted to obtain positioned dentition data; including: Importing the oral CBCT data into RadiantViewer software to reconstruct the full-mouth dentition root three-dimensional data, dentition three-dimensional data, and jaw three-dimensional data; The oral scan dental arch data is imported into RadiantViewer software, and the coordinates of the oral scan dental arch data are moved to be consistent with the coordinates of the dental arch three-dimensional data to obtain the positioned dental arch data.

3. The method for manufacturing a surgical guide for periodontal assisted accelerated osteogenesis orthodontic treatment according to claim 2, characterized in that: The method also includes: exporting the full-mouth dentition root three-dimensional data, the positioned dentition data and the jaw three-dimensional data from the RadiantViewer software and importing them into EXOCAD software, and designing a retention structure model, a first positioning structure model, a cortical bone incision line positioning structure model and a second positioning structure model in the EXOCAD software.

4. The method for manufacturing a surgical guide for periodontal assisted accelerated osteogenesis orthodontic treatment according to claim 1 or 3, characterized in that: The bone surface distance between the first positioning structure model and the alveolar bone surface of the target tooth is in the range of 0.5-1 mm.

5. The method for manufacturing a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to claim 1, characterized in that: The preset bone surface distance ranges from 1.5 to 2.5 mm, and the preset bone surface distance is determined by the root of the target tooth and the surface structure of the alveolar bone thereof.

6. The method for manufacturing a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to claim 1, characterized in that: The design process of the linear opening area is as follows: A line connecting the midpoints of two oppositely disposed root surfaces of two adjacent target teeth is determined, and a linear opening area located between the two oppositely disposed root surfaces of the two adjacent target teeth is designed with the midpoint on the line as the center.

7. The method for manufacturing a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to claim 1, characterized in that: The cortical bone cutting limiting guide is used to assist in determining the incision position of the cortical bone during periodontal assisted accelerated osteogenesis orthodontic treatment, and the bone augmentation limiting guide is used to assist in determining the bone powder filling amount during periodontal assisted accelerated osteogenesis orthodontic treatment.

8. The method for manufacturing a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to claim 1, characterized in that: The crown positions of some target teeth and adjacent teeth on the retention structure model corresponding to the data of the cortical bone cutting limiting guide plate are designed with windows.

9. The method for manufacturing a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to claim 1, characterized in that: The cortical bone cutting limiting guide plate data and the bone augmentation limiting guide plate are both 3D printed using resin or metal.

10. A surgical guide for periodontal assisted accelerated osteogenesis orthodontic treatment, characterized in that: The surgical guide is manufactured using the method for manufacturing a surgical guide for periodontal assisted accelerated osteogenesis orthodontic treatment according to any one of claims 1 to 9, the surgical guide comprising a cortical bone incision limiting guide and a bone augmentation limiting guide, the cortical bone incision limiting guide being used to determine a surgical area, the surgical area comprising a cortical bone incision position determined based on the edge of a cortical bone incision line positioning structure and an alveolar bone drilling position positioned based on a linear opening area; The bone augmentation limiting guide plate is used to determine a preset bone surface distance of a target tooth, and the preset bone surface distance is determined based on the root of the target tooth and the surface structure of its alveolar bone.

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