A surgical guide for periodontal auxiliary acceleration of orthodontic treatment and a manufacturing method thereof

Abstract

The application discloses a surgical guide plate for periodontal auxiliary acceleration of osteogenic orthodontic treatment and a manufacturing method thereof, and comprises the following steps: designing a retention structure model covering the tooth crown surfaces of all target teeth and adjacent teeth on the filled concave dental arch data according to the three-dimensional data of the dental arch roots of the whole dental arch; designing a first positioning structure model and a second positioning structure model connected with the retention structure model on the buccal bone surface of the three-dimensional data of the jaw bone; designing a linear opening area on the first positioning structure model according to the three-dimensional data of the dental arch roots of the whole dental arch to obtain a bone cortex incision positioning structure model, and obtain bone cortex incision limiting guide plate data and bone increment limiting guide plate data; and printing the bone cortex incision limiting guide plate data and the bone increment limiting guide plate data to obtain the bone cortex incision limiting guide plate and the bone increment limiting guide plate. The application can improve the positioning accuracy of the surgical area and reduce the difficulty of the surgery.

Description

Technical Field

[0001] This invention belongs to the field of oral technology, specifically relating to a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment and its manufacturing method. Background Technology

[0002] In traditional orthodontic treatment, tooth movement speed is generally 0.8–1.2 mm / month, and the treatment course typically lasts about two years or even longer. Generally speaking, the longer the orthodontic treatment course, the greater the probability of tooth decay, periodontal disease, and root resorption, and the worse the patient's cooperation becomes. This is one of the reasons why some patients are unwilling to undergo orthodontic treatment. Therefore, how to accelerate orthodontic tooth movement and shorten the treatment course has become a research hotspot both domestically and internationally in recent years.

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

[0004] PAOO (Palm-Lingual Ossification) refers to the procedure of cutting and drilling the labial and lingual cortical bone around the teeth to be moved during orthodontic treatment, and placing bone grafts in the surgical area to assist and accelerate orthodontic treatment. While the concept of cortical bone incision to assist tooth movement has existed for over a century, it has only been truly applied clinically in the last decade. As early as 1893, Bryan first described cortical bone incision as an aid to tooth movement. It wasn't until 1959 that Kole detailed cortical bone incision and first used it as a method to accelerate tooth movement. He believed that the main resistance to tooth movement was the cortical bone of the alveolar bone, and that he accelerated tooth movement by disrupting the continuity of the cortical bone. Kole's procedure involved a complete vertical cortical bone incision on the buccal and lingual sides of the target tooth and a subapical horizontal osteotomy, thus creating a complete bone block for movement—the "bone block movement theory." Kole's bone block movement theory was popular for 40 years and was the theoretical basis for accelerating tooth movement in the 20th century. However, due to the high invasiveness of Kole's procedure, it was not widely used clinically, and many scholars later modified the procedure. In the early 21st century, Wilcko et al. proposed accelerated osteogenesis orthodontic treatment (AOO) and later periodontal-assisted accelerated osteogenesis treatment (PAOO) based on this.

[0005] PAOO technology can effectively accelerate tooth movement, but the surgical procedure is difficult. When making the bone cortex incision, the doctor needs to judge the incision range and location based on experience, and there is a lack of precise positioning methods, which increases the difficulty of the surgery. At the same time, in the bone grafting process, there is a lack of effective auxiliary tools to judge the bone powder filling situation, making it difficult to guarantee the filling effect. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the present invention aims to provide a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment and its manufacturing method, thereby solving the problems of low accuracy in surgical area positioning and high surgical difficulty in existing technologies.

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

[0008] After acquiring oral CBCT data and oral scan dental arch data, the oral CBCT data is reconstructed to obtain three-dimensional data of tooth roots, three-dimensional data of dental arch and three-dimensional data of jawbone in the whole mouth. The oral scan dental arch data and the three-dimensional data of dental arch are then fitted to obtain the localized dental arch data.

[0009] The positioned dentition data is filled with undercuts to obtain undercut dentition data. Based on the three-dimensional root data of the entire dentition, a retention structure model covering the crown surface of the target tooth and its adjacent teeth is designed on the undercut dentition data.

[0010] A first positioning structure model and a second positioning structure model are designed on the buccal bone surface of the three-dimensional jawbone data, respectively, and are connected to the fixation structure model. The first positioning structure model covers the root of the target tooth and fits the cortical bone surface of the target tooth. The second positioning structure model covers the root of the target tooth and has a preset bone surface distance from the alveolar bone surface of the target tooth.

[0011] Based on the three-dimensional data of the roots of the entire dentition, a linear opening area is designed on the first positioning structure model to obtain the cortical bone incision line positioning structure model.

[0012] Export the data corresponding to the fixation structure model and the cortical incision line positioning structure model to obtain cortical incision limiting guide plate data; export the data corresponding to the fixation structure model and the second positioning structure model to obtain bone increment limiting guide plate data; print the cortical incision limiting guide plate data and the bone increment limiting guide plate data respectively to obtain cortical incision limiting guide plate and bone increment limiting guide plate.

[0013] In some embodiments, after acquiring oral CBCT data and oral scan dental arch data, the oral CBCT data is reconstructed to obtain three-dimensional data of the tooth roots, three-dimensional data of the dental arch, and three-dimensional data of the jawbone; and the oral scan dental arch data and the three-dimensional data of the dental arch are fitted to obtain the localized dental arch data; including:

[0014] The oral CBCT data was imported into RadiantViewer software to reconstruct the three-dimensional data of the tooth roots, the three-dimensional data of the dentition, and the three-dimensional data of the jawbone.

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

[0016] In some embodiments, the method further includes: exporting the three-dimensional data of the roots of the entire dentition, the located dentition data, and the three-dimensional data of the jawbone from the RadiantViewer software and importing them into the 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 ranges from 0.5 to 1 mm.

[0018] In some embodiments, the preset bone surface distance is in the range of 1.5-2.5 mm, and the preset bone surface distance is determined by the root of the target tooth and the alveolar bone surface structure.

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

[0020] Determine the line connecting the midpoints of the two opposing root surfaces in two adjacent target teeth, and design a linear opening region between the two opposing root surfaces in two adjacent target teeth with the midpoint of the line as the center.

[0021] In some embodiments, the cortical bone incision limiting guide is used to help determine the incision location of the cortex in periodontal-assisted accelerated osteogenesis orthodontic treatment, and the bone increment limiting guide is used to help determine the amount of bone graft filling in periodontal-assisted accelerated osteogenesis orthodontic treatment.

[0022] In some embodiments, the crown positions of some target teeth and their adjacent teeth on the retention structure model corresponding to the cortical bone incision limiting guide data are designed with openings.

[0023] In some embodiments, the data for the cortical bone incision limiting guide and the bone increment limiting guide are both 3D printed using resin or metal.

[0024] According to another aspect of this application, a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment is also disclosed. The surgical guide is manufactured using the method described in any of the preceding claims for a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment. The surgical guide includes a cortical incision limiting guide and a bone increment limiting guide. The cortical incision limiting guide is used to determine the surgical area, which includes a cortical incision position determined based on the edge of the cortical incision line positioning structure and an alveolar bone drilling position located based on the linear opening area. The bone increment limiting guide is used to determine a preset bone surface distance of the target tooth, which 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) By acquiring oral CBCT data and oral scanning dental arch data and reconstructing and fitting, the present invention can accurately obtain relevant three-dimensional data. Based on this, the design of retention structure model, positioning structure model, etc., can accurately locate the target tooth and tooth root, alveolar bone, etc., improve the accuracy of surgical area positioning, reduce the uncertainty caused by experience-based operation during surgery, and the obtained cortical bone incision limiting guide can be used to assist in the retention after the valve is opened during surgery, providing a clear surgical field for the surgical area; (2) The present invention can select bone increment limiting guides with different preset bone surface distances according to different patient conditions, and make more suitable bone increment limiting guides for different tooth root and alveolar bone surface conditions. (3) This method can not only determine the location of the cortical incision by the two edges of the cortical incision line positioning structure in the cortical incision limiting guide plate, but also locate the alveolar bone drilling location by the linear opening area in the cortical incision limiting guide plate, thereby improving the positioning accuracy of the surgical area and reducing the difficulty of the operation; (4) Using RadiantViewer software to reconstruct the oral CBCT data, it is possible to obtain the three-dimensional data of the tooth roots, the three-dimensional data of the dentition, and the three-dimensional data of the jawbone of the entire dentition relatively accurately; at the same time, importing the oral scan dentition data into the software and performing coordinate movement fitting can obtain the dentition data after positioning relatively accurately, providing an accurate data basis for the subsequent surgical guide design, which is helpful for (5) This scheme determines the range of bone surface distances 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, providing accurate positioning and reference for operations such as cortical bone incision and bone augmentation, improving the accuracy of surgical operations, reducing surgical errors, and the preset bone surface distance is determined by the root of the target tooth and its alveolar bone surface structure. Considering the individual differences in oral structure, the surgical guide can better adapt to the oral conditions of different patients, meet personalized treatment needs, and improve treatment effect and patient comfort; (6) By determining the line connecting the midpoints of the relative root surfaces of adjacent target teeth and its midpoint, a linear design is made. The opening area can improve the accuracy of alveolar bone drilling location, improve the precision of cortical bone cutting operation guidance, improve the accuracy and standardization of surgery, reduce the blindness of surgical operation, and design a linear opening area based on the positional relationship of the tooth root surface, fully considering the anatomical characteristics of the oral cavity teeth and tooth roots, so that the surgical guide fits better with the actual oral cavity structure, which helps the surgical operation to proceed smoothly and reduces the risk of damage to 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 surgical operation, and reduces surgical time and unnecessary interference to surrounding tissues. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0027] Figure 1 This is a flowchart illustrating the method for fabricating a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the retention structure model and the first positioning structure model of the method for fabricating a surgical guide for periodontal-assisted accelerated osteogenic orthodontic treatment according to an embodiment of this application.

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

[0030] Figure 4 This is a schematic diagram of the retention structure model and the cortical bone incision line positioning structure model of the method for fabricating a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to an embodiment of this application.

[0031] Figure 5 This is another schematic diagram of the retention structure model and the cortical bone incision line positioning structure model of the method for fabricating a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to an embodiment of this application.

[0032] In the figure, 1-fixation structure model; 2-first positioning structure model; 3-cortical bone incision line positioning structure model; 4-linear opening area; 5-fenestration. Detailed Implementation

[0033] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” or “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] For ease of understanding, the specific process of the embodiments of the present invention will be described below. Figure 1Here is a flowchart illustrating the method for fabricating a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to an embodiment of this application:

[0035] S100. After acquiring oral CBCT data and oral scan dental arch data, the oral CBCT data is reconstructed to obtain three-dimensional data of the tooth roots, three-dimensional data of the dental arch, and three-dimensional data of the jawbone. The oral scan dental arch data and the three-dimensional data of the dental arch are then fitted to obtain the localized dental arch data.

[0036] Specifically, CBCT, or cone-beam computed tomography, provides three-dimensional imaging information of the oral and maxillofacial region, covering the entire dentition, tooth roots, and jawbone structures. CBCT data is obtained by taking CBCT scans, and the data is in DICOM format. An intraoral scanner is used to scan the dentition and surrounding soft tissues to obtain oral dentition data. The CBCT data is then imported into RadiantViewer software to reconstruct three-dimensional data of the entire dentition, including tooth root data, dentition data, and jawbone data, all in STL format. It is important to note that the dentition data is extracted from the dentition portion of the full-arch tooth root data.

[0037] Furthermore, the intraoral scan data of the dental arch is imported into RadiantViewer software and its position is fitted to the 3D dental arch data reconstructed by CBCT, ensuring that the coordinates of the intraoral scan data are consistent with the coordinates of the 3D dental arch data, ultimately obtaining the final intraoral scan data of the dental arch. In RadiantViewer software, its built-in algorithm plays a crucial role. The algorithm first identifies and analyzes the imported 2D tomographic images, distinguishing different structures such as teeth, roots, and jawbones based on the differences in X-ray absorption by different tissues (e.g., bones absorb more X-rays and appear brighter in the image; soft tissues absorb less and appear darker). Then, based on these identification results, the software stacks and fuses a series of 2D tomographic images according to their spatial relationships, gradually constructing 3D data of the entire dental arch, including root data, dentition data, and jawbone data.

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

[0039] Specifically, the reconstructed 3D data of the entire dentition's tooth roots, the located dentition data, and the jawbone data are exported from RadiantViewer software. These data are then imported into EXOCAD software, where subsequent steps are completed. Using RadiantViewer software to reconstruct oral CBCT data allows for relatively accurate acquisition of 3D data of the entire dentition's tooth roots, dentition, and jawbone. Simultaneously, importing the intraoral scan dentition data into the software and performing coordinate shift fitting yields relatively accurate located dentition data, providing a precise data foundation for subsequent surgical guide design and improving the fit between the surgical guide and the actual oral structure.

[0040] Understandably, by acquiring oral CBCT data and oral scan dental arch data and reconstructing and fitting them, relevant three-dimensional data can be accurately obtained. Based on this, the retention structure model 1 and positioning structure model designed can accurately locate the target tooth and its root, alveolar bone, etc., improve the accuracy of surgical area positioning, reduce the uncertainty caused by experience-based operation during surgery, and the obtained cortical bone incision limiting guide can be used to assist in the retention after the valve is opened during surgery, providing a clear surgical field of view for the surgical area.

[0041] S102. Fill the undercuts on the located dentition data to obtain the undercut dentition data. Based on the three-dimensional data of the roots of the entire dentition, design a retention structure model on the undercut dentition data to cover the crown surface of the target tooth and its adjacent teeth.

[0042] Specifically, undercuts are removed from the repositioned dentition data using EXOCAD software to obtain dentition data with the undercuts filled. A retention structure model 1 is then designed on this data, covering the crown surfaces of all target teeth and their adjacent teeth. Therefore, the retention structure on the printed surgical guide can be fitted onto the patient's target teeth and their adjacent teeth, serving to fix and position the surgical guide.

[0043] S104. On the buccal bone surface of the three-dimensional jawbone data, design a first positioning structure model and a second positioning structure model that are connected to the fixation structure model. The first positioning structure model covers the roots of all target teeth and fits the cortical bone surface of all target teeth. The second positioning structure model covers the roots of all target teeth and has a preset bone surface distance between it and the alveolar bone surface 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 ranges from 0.5 to 1 mm.

[0045] In a specific embodiment, the preset bone surface distance is in the range of 1.5-2.5mm, and the preset bone surface distance is determined by the root of the target tooth and the surface structure of its alveolar bone.

[0046] For details, please refer to Figure 2-5 A first positioning structure model 2 is designed on the buccal bone surface of the three-dimensional data of the jawbone, which can cover the roots of all target teeth and fit the cortical bone surface of all target teeth. The first positioning structure model 2, printed from the data of the first positioning structure model 2, extends towards the roots of the target teeth based on 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. This bone surface distance is just enough to make the first positioning structure model 2 fit the cortical bone surface of all target teeth. In addition, a second positioning structure model can be designed on the buccal bone surface of the three-dimensional jawbone data to cover the roots of all target teeth and have a preset bone surface distance between it and the alveolar bone surface of all target teeth. The second positioning structure printed 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 towards the root of the target tooth. The step-like structure makes the second positioning structure have a preset bone surface distance between it and the alveolar bone surface of all target teeth. This preset bone surface distance can avoid too much or too little bone powder filling during periodontal-assisted accelerated osteogenesis orthodontic treatment and can keep the alveolar bone surface after filling more even. By determining the distance range between the first positioning structure model 2 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, providing accurate positioning and reference for operations such as cortical bone incision and bone augmentation, improving the accuracy of surgical operations, reducing surgical errors, and the preset bone surface distance is determined by the root of the target tooth and its alveolar bone surface structure. Considering 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. Based on the three-dimensional data of the roots of all teeth, a linear opening region is designed on the first positioning structure model to obtain the bone cortical incision line positioning structure model.

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

[0049] Determine the line connecting the midpoints of the two opposing root surfaces in two adjacent target teeth, and design a linear opening region 4 between the two opposing root surfaces in two adjacent target teeth with the midpoint of the line as the center.

[0050] Specifically, the linear opening area 4 provides the area for cortical bone incision. After the positions of the retention structure and the cortical bone incision line positioning structure are fixed, the surgeon 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 location of the linear opening area 4. By designing the linear opening area by determining the line connecting the midpoints of the relative root surfaces of adjacent target teeth and its midpoint, the positioning accuracy of alveolar bone drilling can be improved, the accuracy of cortical bone incision operation guidance can be improved, the accuracy and standardization of the operation can be improved, and the blindness of the operation can be reduced. Moreover, the linear opening area is designed according to the positional relationship of the root surface, which fully considers the anatomical characteristics of the teeth and roots in the oral cavity, so that the surgical guide fits better with the actual oral cavity structure, which helps to facilitate the smooth operation of the operation and reduces the risk of damage to surrounding tissues.

[0051] In a specific embodiment, the crown positions of some target teeth and their adjacent teeth on the retention structure model 1 corresponding to the cortical bone incision limiting guide data are designed with openings 5.

[0052] Furthermore, the crown positions of some target teeth and their adjacent teeth on the retention structure model 1 corresponding to the cortical bone incision limiting guide data are designed with windows 5. These 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 manipulated more directly and clearly during the operation, facilitating the entry and exit of instruments. This helps to improve the convenience and accuracy of the surgical operation, reduce the operation time, and reduce unnecessary interference with surrounding tissues.

[0053] S108, export the data corresponding to the fixation structure model and the bone cortical incision line positioning structure model to obtain the bone cortical incision limiting guide plate data; export the data corresponding to the fixation structure model and the second positioning structure model to obtain the bone increment limiting guide plate data; print the bone cortical incision limiting guide plate data and the bone increment limiting guide plate data respectively to obtain the bone cortical incision limiting guide plate and the bone increment limiting guide plate.

[0054] In specific embodiments, the cortical incision limiting guide is used to help determine the location of the cortical incision in periodontal-assisted accelerated osteogenesis orthodontic treatment, and the bone increment limiting guide is used to help determine the bone powder filling status in periodontal-assisted accelerated osteogenesis orthodontic treatment.

[0055] In a specific embodiment, the data of the cortical bone incision limiting guide plate and the data of the bone increment limiting guide plate are arranged in the 3D printing equipment software and 3D printed using 3D resin or metal.

[0056] Specifically, after completing the design of the above models, the data can be exported from the EXOCAD software and formatted in the 3D printing equipment software. 3D printing is then performed using 3D resin or metal to ultimately obtain the cortical bone incision limiting guide and the bone augmentation limiting guide. These two guides can then be applied in periodontal-assisted accelerated osteogenesis orthodontic treatment.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for fabricating a surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment, characterized in that, The method includes: After acquiring oral CBCT data and oral scan dental arch data, the oral CBCT data is reconstructed to obtain three-dimensional data of tooth roots, three-dimensional data of dental arch and three-dimensional data of jawbone in the whole mouth. The oral scan dental arch data and the three-dimensional data of dental arch are then fitted to obtain the localized dental arch data. The positioned dentition data is filled with undercuts to obtain undercut dentition data. Based on the three-dimensional root data of the entire dentition, a retention structure model covering the crown surface of the target tooth and its adjacent teeth is designed on the undercut dentition data. A first positioning structure model and a second positioning structure model are designed on the buccal bone surface of the three-dimensional jawbone data, respectively, and are connected to the retention structure model. The first positioning structure model covers the root of the target tooth and conforms to the cortical bone surface of the target tooth. The second positioning structure model covers the root of the target tooth and has a preset bone surface distance between it and the alveolar bone surface of the target tooth. The preset bone surface distance is in the range of 1.5-2.5 mm and is determined by the root of the target tooth and the alveolar bone surface structure. Based on the three-dimensional data of the roots of the entire dentition, a linear opening area is designed on the first positioning structure model to obtain the cortical bone incision line positioning structure model. Export the data corresponding to the retention structure model and the cortical bone incision line positioning structure model to obtain cortical bone incision limiting guide data; export the data corresponding to the retention structure model and the second positioning structure model to obtain bone increment limiting guide data; print the cortical bone incision limiting guide data and the bone increment limiting guide data respectively to obtain cortical bone incision limiting guide and bone increment limiting guide. The cortical bone incision limiting guide is used to assist in determining the incision position of the cortex in periodontal-assisted accelerated osteogenesis orthodontic treatment, and the bone increment limiting guide is used to assist in determining the amount of bone graft filling in periodontal-assisted accelerated osteogenesis orthodontic treatment.

2. The method for manufacturing the surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to claim 1, characterized in that, The process involves acquiring oral CBCT data and oral scan dentition data, reconstructing the oral CBCT data to obtain three-dimensional data of the tooth roots, dentition, and jawbone of the entire dentition, and then fitting the oral scan dentition data and the dentition three-dimensional data to obtain the localized dentition data; including: The oral CBCT data was imported into RadiantViewer software to reconstruct the three-dimensional data of the tooth roots, the three-dimensional data of the dentition, and the three-dimensional data of the jawbone. The oral scan dental data is imported into RadiantViewer software, and the coordinates of the oral scan dental data are moved to match the coordinates of the three-dimensional dental data to obtain the positioned dental data.

3. The method for manufacturing the surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to claim 2, characterized in that, The method further includes: exporting the three-dimensional data of the roots of the entire dentition, the data of the dentition after positioning, and the three-dimensional data of the jawbone from the RadiantViewer software and importing them into the 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 distance between the first positioning structure model and the alveolar bone surface of the target tooth ranges from 0.5 to 1 mm.

5. The method for manufacturing the surgical guide for periodontal-assisted accelerated osteogenesis orthodontic treatment according to claim 1, characterized in that, The design process for the linear opening region is as follows: Determine the line connecting the midpoints of the two opposing root surfaces in two adjacent target teeth, and design a linear opening region between the two opposing root surfaces in two adjacent target teeth with the midpoint of the line as the center.

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

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

8. A surgical guide for periodontal-assisted accelerated osteogenic 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 as described in any one of claims 1-7. The surgical guide includes a cortical bone incision limiting guide and a bone increment limiting guide. The cortical bone incision limiting guide is used to determine the surgical area. The surgical area includes the cortical bone incision position determined based on the edge of the cortical bone incision line positioning structure and the alveolar bone drilling position located based on the linear opening area. The bone increment limiting guide plate is used to determine the preset bone surface distance of the target tooth, which is determined based on the root of the target tooth and the surface structure of its alveolar bone.

Images