A full guide plate for bone grafting and simultaneous implantation of bone fragments and a manufacturing method thereof

Abstract

The present application relates to a kind of whole guide plate for bone graft sandwich bone grafting simultaneous implantation and manufacturing method, including the implantation guide plate of bone graft and implant, bone graft positioning finishing plate, tooth positioning device of bone area, osteotomy guide plate, tooth bone model of edentulous area, tooth bone model of bone area, the top of the implantation guide plate of bone graft and implant is connected with the bottom of bone graft positioning finishing plate, can be set with the several positioning points corresponding to bone area position in bone area by the guide drill needle hole on bone graft positioning finishing plate, can accurately transplant the bone graft taken to bone area;The osteotomy guide plate can be connected with tooth positioning device of bone area, also can be fixed in bone area according to the several positioning points;The present application can realize accurate, minimally invasive, safe to obtain intraoral autologous bone graft, can provide bone graft acquisition, finishing, implantation and implantation whole process guidance for surgeon, reduce the difficulty of operation, assist surgeon to complete the whole operation more accurately, efficiently, safely.

Description

Technical Field

[0001] This invention relates to the field of medical technology, specifically to a complete guide plate for simultaneous implantation of bone grafts in bone grafting and its manufacturing method. Background Technology

[0002] Achieving functional and aesthetically pleasing dental implant restorations depends on the ideal placement of the implant and appropriate tissue augmentation in the context of alveolar bone defects. When tooth loss is accompanied by bone loss in the edentulous area, bone augmentation is necessary, which may increase the treatment duration and number of visits. Bone grafting, also known as bone graft technique, cortical bone grafting, or interlayer bone transplantation, involves obtaining a block of bone from the patient's own body, dividing it into several thin bone grafts, fixing them to the edentulous area using retention screws, and filling the gaps between the bone grafts and the original bone in the edentulous area with granular bone augmentation material. For patients with vertical bone defects, double-layer bone grafting can be used to reconstruct three-dimensional bone defects on the labial (buccal) and lingual (palatal) sides of the edentulous area; while for patients with only horizontal bone defects, single-layer bone grafting can be used. This technique utilizes autologous bone grafts taken from the patient, which are fixed to the labial and palatal sides to restore the bone wall of the defect. Autologous bone fragments or artificial bone augmentation material are then filled between the two bone grafts. Alternatively, the grafts can be placed separately on the labial or palatal side, with granular bone augmentation material filling the space between the grafts and the original bone. This technique is an effective method for reconstructing severe bone defects at the intended implantation site after tooth loss. Compared to traditional autologous block bone grafting, the bone grafts in this technique act as an autologous biomembrane, protecting the internal bone fragments and providing a stable osteogenic environment. A larger bone augmentation profile can be achieved with a smaller bone volume. Furthermore, the granular bone augmentation material filling the bone grafts accelerates early vascularization. The autologous bone granules in this granular material are rich in growth factors and osteoblasts, which facilitates the integration of the implant with the bone.

[0003] Bone grafting involves two steps: bone harvesting and grafting, and involves two sites: the donor site and the recipient site. For the donor site, the intraoral site is the preferred choice due to its advantages such as less trauma, good dimensional stability of the intramembranous osteogenic bone origin, and high patient acceptability. For the recipient site, the implanted bone graft must have good adhesion to the remaining original bone in the edentulous area to achieve stable fixation. Simultaneously, the distance between the labial (buccal) and lingual (palatal) bone grafts must be appropriate. If this distance is too small, it will not meet the sufficient bone volume requirements around the implant; if the distance is too large, it will result in over-grafting, increasing unnecessary trauma, the amount of granular bone augmentation material needed for internal filling, and also increasing the tension after soft tissue suturing, thus increasing the risk of wound dehiscence. However, in traditional freehand manipulation, there are many technical challenges in meeting these requirements, such as: the shape and size of the bone graft cannot accurately reconstruct the bone defect area; the bone graft cannot be precisely positioned and fixed during implantation; the drilling and fixation of the bone graft are difficult; and the technique requires high sensitivity. These challenges limit the widespread application of this technique. Meanwhile, the challenges of bone grafting with interlayer bone grafts are how to obtain bone fragments of appropriate size and shape by making full use of intraoral bone sources while avoiding damage to nerves and adjacent teeth, and how to trim the removed bone fragments so that their edges are attached to the original bone and transplanted and fixed to the appropriate bone recipient area, that is, to achieve precise positioning and firm fixation of the bone fragments. These are the difficulties of bone fragment interlayer bone grafting and are also the difficult problems that urgently need to be solved in clinical practice.

[0004] Currently, with the development and expansion of digital technology, it has gradually become an important auxiliary means for dental implantation and tissue defect reconstruction. Utilizing technologies such as multi-source data fusion, digital 3D design, and digital processing, more precise, efficient, minimally invasive, and safe surgical procedures can be achieved. For example, 3D imaging data of the jawbone and dental model scan data can be fused to design and fabricate various digital surgical guides. By incorporating the positional information of the teeth into the guide, precise positioning of the guide can be achieved. While previous literature has documented various surgical guide techniques, some using tooth positioning and others not, there are still no reports of digital surgical guide techniques that can simultaneously perform bone grafting with intercalation. Problems such as how to safely obtain appropriately sized bone fragments, how to trim the removed bone fragments to ensure good fit between their edges and the recipient area, and how to precisely position and firmly fix the removed bone fragments to reconstruct the aesthetic contour of the bone defect area remain unsolved. These issues are crucial for the precise design and implementation of the entire digital process of bone grafting with intercalation using digital methods. To address the current challenges of bone grafting with intercalation, we have invented a full-process guide plate technique for simultaneous implantation of bone grafts with intercalation, aiming to achieve precise, minimally invasive, efficient, and safe surgical results while reducing the sensitivity of surgical techniques. Summary of the Invention

[0005] This invention relates to a complete guide plate and its manufacturing method for simultaneous bone grafting and implantation. This invention enables precise, minimally invasive, and safe acquisition of intraoral autologous bone fragments, and provides doctors with guidance throughout the entire process of bone fragment acquisition, trimming, implantation, and implant placement, reducing the difficulty of surgery and assisting doctors to complete the entire surgery more accurately, efficiently, and safely.

[0006] The purpose of this invention is to provide a complete guide plate and its fabrication method for simultaneous bone grafting and implantation. Due to the small size of the osteotomy guide plate, the stable fixation of the osteotomy guide plate, and the segmented design of the osteotomy guide plate, it is possible to accurately, minimally invasively, and safely obtain several intraoral autologous bone grafts. The bone graft positioning and trimming plate can be inserted into the bone graft positioning slot. The combination of the two allows for the positioning and trimming of the bone graft to be implanted. The guide drill holes on the bone graft positioning and trimming plate can be used to drill holes in the recipient area. Then, the bone graft can be accurately implanted according to the designed bone graft implantation position and direction using the bone graft positioning slot. The dental bone model printed using resin material can be used to assist in the preoperative trial fitting of the combined guide plate, as well as to assist in intraoperative bone graft trimming and obtaining a well-mixed, appropriate amount of granular bone filling material. This modular guide plate can guide doctors through all the processes of bone graft acquisition, trimming, implantation, and simultaneous implant placement. It enables simultaneous bone grafting and implantation without interference between the implant and the bone graft screws, shortening the treatment cycle, reducing the difficulty of the surgery, and assisting doctors to perform the surgery more accurately, efficiently, safely, and minimally invasively.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This invention provides a complete guide plate for simultaneous bone grafting and implantation, comprising an implantation guide plate for bone grafts and implants, a bone graft positioning and trimming plate, a tooth positioning device for the bone harvesting area, an osteotomy guide plate, a bone model of the edentulous area, and a bone model of the bone harvesting area. The top of the implantation guide plate for bone grafts and implants is connected to the bottom of the bone graft positioning and trimming plate. The osteotomy guide plate can be connected to the tooth positioning device for the bone harvesting area and can also be fixed to the bone harvesting area according to the plurality of positioning points. The bone model of the edentulous area and the bone model of the bone harvesting area can be used for guide plate trial fitting and can also be used to determine the volume of artificial granular bone filling material to be implanted, so as to facilitate rapid implantation after thorough mixing of autologous bone particles obtained from bone graft trimming with an appropriate amount of artificial granular bone material.

[0009] Wherein: the bone graft and implantation guide plate includes an implantation guide ring (1), a recipient tooth positioning base plate (2), a connecting rod a (3), a bone graft positioning groove a (4), a bone graft positioning groove b (5), and a connecting rod b (8); the recipient tooth positioning base plate (2) is connected to the implantation guide ring (1) through the connecting rod a (3), and the bone graft positioning groove a (4) and the bone graft positioning groove b (5) are connected to the recipient tooth positioning base plate (2) through the connecting rod b (8); the bone graft positioning groove a (4) includes a bone graft implantation guide hole a1 (17), a bone graft implantation guide hole a2 (18), and a bone graft placement observation window (21), and the bone graft positioning groove b (5) includes a bone graft implantation guide hole b1 (19) and a bone graft implantation guide hole b2 (20).

[0010] Wherein: the bone fragment positioning and trimming plate includes bone fragment positioning and trimming plate a (6) and bone fragment positioning and trimming plate b (7); wherein, bone fragment positioning and trimming plate a (6) includes guide drill bit ring a1 (13) and guide drill bit ring a2 (14), the hole passage in the middle of guide drill bit ring a1 (13) is guide drill bit hole a1 (9), and the hole passage in the middle of guide drill bit ring a2 (14) is guide drill bit hole a2 (10); bone fragment positioning and trimming plate b (7) includes Guide drill ring b1 (15) and guide drill ring b2 (16), the hole passage in the middle of guide drill ring b1 (15) is guide drill hole b1 (11), and the hole passage in the middle of guide drill ring b2 (16) is guide drill hole b2 (12); the bone piece positioning and trimming plate a (6) and bone piece positioning and trimming plate b (7) can be connected by digitally virtual designed bone graft nail a1 (40) and digitally virtual designed bone graft nail a2 (41).

[0011] Wherein: the bone graft and implantation guide plate includes an implantation guide ring (1), a recipient tooth positioning base plate (2), a connecting rod a (3), a bone graft positioning groove a (4), a bone graft positioning groove b (5), and a connecting rod b (8); the recipient tooth positioning base plate (2) is connected to the implantation guide ring (1) through the connecting rod a (3), and the bone graft positioning groove a (4) and the bone graft positioning groove b (5) are connected to the recipient tooth positioning base plate (2) through the connecting rod b (8); the bone graft positioning groove a (4) includes a bone graft implantation guide hole a1 (17), a bone graft implantation guide hole a2 (18), and a bone graft placement observation window (21); the bone graft positioning groove b (5) includes a bone graft implantation guide hole b1 (19) and a bone graft implantation guide hole b2 (20).

[0012] Wherein: the bone fragment positioning and trimming plate includes bone fragment positioning and trimming plate a (6) and bone fragment positioning and trimming plate b (7); wherein, bone fragment positioning and trimming plate a (6) includes guide drill bit ring a1 (13) and guide drill bit ring a2 (14), the hole passage in the middle of guide drill bit ring a1 (13) is guide drill bit hole a1 (9), and the hole passage in the middle of guide drill bit ring a2 (14) is guide drill bit hole a2 (10); bone fragment positioning and trimming plate b (7) includes Guide drill bit ring b1 (15) and guide drill bit ring b2 (16), the hole passage in the middle of guide drill bit ring b1 (15) is guide drill bit hole b1 (11), and the hole passage in the middle of guide drill bit ring b2 (16) is guide drill bit hole b2 (12); the bone piece positioning and trimming plate a (6) and bone piece positioning and trimming plate b (7) can be connected by digitally virtual designed bone graft nail a1 (40) and digitally virtual designed bone graft nail a2 (41);

[0013] Wherein: the tooth positioning device for the bone harvesting area includes a tooth positioning base plate (22), a guide drill ring A1 (25), a guide drill ring A2 (26), a guide drill ring c (28), a connecting rod d (29), and a connecting rod c (44); wherein, the hole passage in the middle of the guide drill ring A1 (25) is the guide drill hole A1 (23), the hole passage in the middle of the guide drill ring A2 (26) is the guide drill hole A2 (24), and the hole passage in the middle of the guide drill ring c (28) is the guide drill hole c (27).

[0014] The osteotomy guide plate includes an osteotomy guide plate outer frame (42) and an osteotomy guide plate partition frame (36); wherein, the osteotomy guide plate outer frame (42) has osteotomy guide plate 2 (32), osteotomy guide plate 3 (33), osteotomy guide plate 4 (34), osteotomy guide plate 5 (35) and osteotomy guide plate fixation hole c (30); the osteotomy guide plate partition frame (36) has osteotomy guide plate 1 (31); the groove between the osteotomy guide plate outer frame (42) and the osteotomy guide plate partition frame (36) is the osteotomy guide plate partition cutting groove (48);

[0015] The tooth positioning base plate (22) in the bone harvesting area can be connected to the outer frame of the osteotomy guide plate (42) via connecting rod d (29), connecting rod c (44), guide drill ring A1 (25), guide drill ring A2 (26), and guide drill ring c (28).

[0016] The present invention provides a complete guide plate for simultaneous implantation of bone grafts in bone grafting and its manufacturing method, comprising the following design steps:

[0017] 1) Reconstructing the jawbone model and overlaying the dental arch scan model to generate the edentulous area bone model and the bone harvesting area bone model: Obtain the patient's dental arch scan model, which can be obtained through intraoral scanning or by scanning a plaster model of the patient's dental arch. Take a CBCT scan of the patient's jawbone, obtain DICOM format data, and import it into Mimics Research software. Use the "Masks" → "Calculate Part" command to reconstruct the jawbone model, including the original bone and teeth of the edentulous area and the bone and teeth of the bone harvesting area. Save the model as STL format. Import the jawbone model and dental arch scan data into Geomagic Studio software. Select the crown portion of the teeth on the jawbone model, right-click the jawbone model, select "pin", click "Alignment" → "Best Fit Alignment" in the menu bar, select the dental arch scan model in the "Float" box, and click "Apply" to register the dental arch scan model to the jawbone model with the crown portion of the teeth on the jawbone model as a reference. Then click "Polygons" → "Trim" → "Trim with" in the menu bar. "Curve" to cut off the crown portion of the jawbone model and the non-crown portion of the dental arch scan model respectively. Select the two cut models and click "Polygons" → "Combine" in the menu bar to combine them into a whole, i.e., the jawbone model. Use the "Polygons" → "Trim" → "Trim with Curve" function to trim the jawbone model, retaining only a few teeth and jawbone surfaces adjacent to the edentulous area and the bone harvesting area, respectively generating preliminary jawbone models of the edentulous area and the bone harvesting area.

[0018] 2) Design of implant and bone models for the edentulous area: In Mimics Research software, import a standard crown model for the corresponding edentulous site. Use the "Move" and "Rotate" commands to move the standard crown model to the edentulous area. Then, adjust the morphology of the standard crown model according to the edentulous space, adjacent teeth, and opposing teeth to form several target crown restorations. Design the position, diameter, and length of several implants to be placed according to the target crowns. The implants to be placed can be represented by cylinders of different diameters and lengths generated using the "Analyze" menu → "Cylinder" → "Draw" command. The minimum number of implants to be placed is one, ensuring that the implant is located within the jawbone to obtain sufficient initial stability, and that the position and angle of the implant meet the restorative requirements of the target restoration. The long axis of the implant usually extends from the target crown restoration. The implant protrudes from the center of the lingual-palatal surface of the anterior teeth or the occlusal surface of the posterior teeth, with the ridge of the implant approximately 3-4 mm from the gingival margin of the target tooth crown. Then, the alveolar bone morphology of the target bone increment at the bone defect site in the edentulous area is reconstructed. The specific steps are as follows: Using the "Duplicate" command, several cylinders representing the proposed implant are copied. Right-clicking the copied cylinder model, selecting the "Properties" command, and increasing the "Radius" value by 2 mm will yield several new cylinders with a radius 2 mm larger than the cylinder representing the proposed implant. Based on the requirement of 2 mm of bone volume around the implant to maintain its long-term stability, these thickened cylinders represent the range of bone increment that needs to be increased. Several cylinders with a thickness of approximately 0 mm are generated on the labial or buccal side and the lingual or palatal side of these thickened cylinders.A 5-2mm thin slice is used to ensure the thickened cylinder is completely positioned within and in contact with the bone slice on the labial, buccal, lingual, or palatal side. The angle of the bone slice is adjusted to allow for greater contact between the apical and mesial / distal sides of the bone slice and the remaining alveolar bone in the edentulous area. The ridge crest of the bone slice is at the same height as the ridge crest of the implant or slightly extends coronally beyond the implant ridge crest by 0-1mm. This is achieved using a Boolean... The "Operation" → "Subtract" command subtracts several thin bone slices from the original bone in the edentulous area to obtain several digitally designed bone slice models for implantation. This design aims to ensure a 2mm bone volume around the implant, with the implant ridge tip flush with the augmented bone surface or located 0-1mm below it. Next, several long cylinders with a diameter of 1-2mm are created, roughly perpendicular to the bone slice models and penetrating both the labial / buccal and lingual / palatal bone slices and the original bone in the edentulous area. The position and angle of these cylinders must avoid the implant and important anatomical structures such as tooth roots, nerves, and blood vessels within the jawbone of the edentulous area, leaving a safety distance of at least 1-2mm. These cylinders represent the bone graft screws that will fix the bone slices to the jawbone, thus obtaining digitally designed bone graft screw models. Finally, the bone slice models are compared with the bone graft screw models using "Boolean Operation".

[0019] The “Subtract” command performs subtraction to obtain a model of the bone graft to be implanted with several bone graft holes.

[0020] 3) Fabrication of bone fragments and implant placement guides: In Geomagic Studio software, right-click on the several cylindrical models representing the implants designed in step 2), select the "Duplicate" command to copy them, and then change the height of the copied cylinders to generate several new cylinders. The height of the new cylinders should be from 3mm to 7mm from the original bone crest of the edentulous area, i.e., a length of 4mm. Select a pressure plate with a suitable diameter, ensuring the radius of the pressure plate in the implant guide toolbox is larger than the radius of the implant. Then, create several thickened cylinders with the same axis and length as the new cylinders, but with a radius 2mm larger than the selected pressure plate in the implant guide toolbox. Create several cylinders representing the pressure plates with the same axis and length as the new cylinders, but with the same radius as the selected pressure plate in the implant guide toolbox. Finally, connect the thickened cylinders and the cylinders representing the pressure plates using "Boolean →..."

[0021] The "Subtract" command subtracts to obtain several implant guide rings, each 4mm long and 2mm thick. The passage in the middle of the implant guide ring is the implantation path. The position and angle of the implant guide ring can guide the position and angle of implantation, and the height of the implant guide ring can indicate the depth of implantation. The implant guide ring, used in conjunction with the pressure plate in the matching implant guide tool kit, can accurately guide the preparation of the implant cavity and the precise implantation. On both sides of the edentulous area, the "Polygons" → "Trim" → "Trim with Curve" command is used to cut thin slices of the coronal surface of several non-loose crowns adjacent to the edentulous area on both sides. Then, the "Polygons" → "Shell" command is used to thicken the cut crown shell slices to 1-2mm along the outer direction of the crown to form a target tooth positioning base plate model, which is a concave shell with a thickness of 1-2mm, and the inner concave surface fits the corresponding crown surface.Using the "Bounded Components" function, select several thin surface models of the inner and outer surfaces of the bone graft models to be implanted, as well as the surface model of the crest near the alveolar ridge. Similarly, using the "Polygons" → "Shell" command, thicken the three thin surface planes selected from each bone graft model to 0.5-1mm along the outer side of the bone graft model to form a groove-like device. Extend the cylindrical model representing the bone graft nail to be implanted by 2-3mm at each end along the long axis of the cylinder to form several new cylinders. Then generate several... The new cylinder has the same axis and length, but a thickened cylinder with a radius increased by 1-2 mm. Subtracting several grooved devices from these thickened cylinders using the "Boolean" → "Subtract" command yields several grooved devices with preliminary bone graft implantation guide holes. Subtracting these thickened cylinders from the new cylinders using the "Boolean" → "Subtract" command again yields several hollow rings. These are then processed using "Polygons" → "Trim" → "Trim". The "with Plane" function uses the inner surface plane of the vertical outer groove plate of each grooved device to trim the hollow ring. The portion cut off in the middle of the hollow ring is deleted, retaining the short hollow rings located inside the initial bone graft implantation guide hole on the outer groove plate of each grooved device and on the outer side of the grooved device away from the original bone. These retained short hollow rings are the guide drill rings, and their internal central passage is the guide drill hole, which can be used to guide the drill bit to drill holes in the original bone of the edentulous area. Several guide drill rings are added to several grooved devices using the "Boolean" → "Union" command to obtain the initial bone graft positioning groove. Then, the "Polygons" → "Trim" → "Trim with" command is used to... The "Plane" function divides the initial bone graft positioning slots using a plane that horizontally bisects several guide rings. It then duplicates ("Duplicate") and deletes ("Delete") the corresponding guide rings and their basal portions on the labial or buccal and lingual or palatal sides of the initial bone graft positioning slots. A bone graft placement observation window is then created, resulting in several bone graft positioning slots with semi-circular implantation guide holes. The corresponding duplicated portions are the guide rings and the initial bone graft positioning slots. The root portion can be added using the "Boolean" → "Union" command to generate a bone fragment positioning and trimming plate. This bone fragment positioning and trimming plate has a guide drill ring. The guide drill ring and the bone graft screw implantation guide hole on the corresponding bone fragment positioning groove are plug-in connected. The bone fragment positioning and trimming plate can be inserted into the bone fragment positioning groove using the guide drill ring on it to form a combined device, which is used to drill holes in the original bone of the edentulous area. After removing the bone fragment positioning and trimming plate, the bone graft screw implantation guide hole on the bone fragment positioning groove can be used to guide the implantation of the bone graft screw.Design a rod-shaped connecting structure to connect several implant guide rings and the recipient tooth positioning base plate model. This connecting structure is denoted as connecting rod a. Design a rod-shaped connecting structure to connect several bone segment positioning slots and the recipient tooth positioning base plate model. This connecting structure is denoted as connecting rod b. Finally, use the menu bar "Polygons" → "Combine" command to combine the above implant guide ring model, recipient tooth positioning base plate model, connecting rod a model, bone segment positioning slot model, and connecting rod b model to form an integrated device, which is the bone segment and implant placement guide. Observe its placement path to ensure that it can be placed without interference on the edentulous bone model, that is, to ensure that it can be placed without interference when the soft tissue is cut open and the bone surface is exposed during the operation.

[0022] 4) Selection of bone harvesting area and generation of osteotomy guide plate: In Geomagic Studio software, using the "Object Mover" function under the "Tools" menu, several digitally designed bone graft models with bone graft screw holes generated in step 2) are moved and stacked together parallel to the long axis of the digitally designed bone graft screws. Using the "Polygons" → "Combine" command in the menu bar, the stacked bone graft models are combined into a single whole, i.e., a bone graft combination model with bone graft screw holes. Then, using "Tools" → "Object Mover"... The "Mover" function moves the bone graft model to a safe bone harvesting area on the jawbone model. Adjusting the placement of the bone graft model ensures the following: ① The bone graft model is at least 2-3 mm away from important anatomical structures such as nerve canals, blood vessels, and tooth roots within the jawbone; ② The direction of the bone graft screw holes on the bone graft model is approximately perpendicular to the surface of the jawbone in the harvesting area; ④ The bone graft model is completely located within the jawbone tissue in the harvesting area; ⑤ The outer contour of the bone graft model should be as close as possible to the bone surface of the harvesting area. A projection of the bone graft model onto the jawbone surface in the harvesting area is then made along the direction of the bone graft screw holes on the bone graft model. Based on the projection of the outermost contour of the surface thin slice, several straight and / or curved osteotomy lines and osteotomy planes are generated. Several vertical osteotomy planes are also created based on the dividing planes between several bone slices in the bone slice assembly model. The jawbone surface surrounding the bone harvesting area is selected, and the "Polygons" → "Shell" command is used to evenly thicken the selected jawbone surface thin slice by 2-3 mm outwards to form a jawbone surface thin plate. Then, the "Polygons" → "Combine" command is used to combine each osteotomy plane with the thin plate. Finally, "Polygons" → "Trim" → "Trim" is used on the thin plate. Use the "with Plane" / "Trim with Curve" command to draw the outer border of the osteotomy guide, ensuring that: ① there is a 1-2mm distance between the outer border of the osteotomy guide and each osteotomy plane, which is the width of the outer frame of the osteotomy guide; ② design several long cylinders with a diameter of 1-2mm between the outer border of the osteotomy guide and the osteotomy plane to represent the osteotomy guide fixation screws. Adjust the position and angle of the long cylinders so that there is a 2-3mm safe distance between their implantation position and important anatomical structures, and the fixation screws are about 1-2mm wide from the outer border of the osteotomy guide.The overlapping portions between several osteotomy planes and the thickened thin plate of the jawbone surface are several osteotomy guide plates. The portions of the thickened thin plate of the jawbone surface outside the osteotomy guide plates and the outer frame of the osteotomy guide plates are deleted to form a preliminary osteotomy guide plate model. Among them, several horizontal partitions between the vertical osteotomy planes are osteotomy guide plate partitions. A linear shallow groove is generated at the junction of the osteotomy guide plate partitions and the outer frame of the osteotomy guide plate, which is the osteotomy guide plate partition cutting groove. It can be used to indicate the position for cutting the osteotomy guide plate during the operation. Then, by performing the "Boolean" → "Subtract" operation on several long cylinders representing osteotomy guide plate fixation screws and the osteotomy guide plate model, an osteotomy guide plate model with several osteotomy guide plate fixation holes c can be obtained.

[0023] 5) Generation of tooth positioning device for bone harvesting area: In Geomagic Studio software, create several new cylinders with the same axis as the long cylinder representing the osteotomy guide fixation screw in step 4), and a diameter and height of 5-6mm. Adjust their spatial position along the long axis so that they are 1-2mm away from the jawbone surface of the bone harvesting area. Perform a "Boolean" → "Subtract" operation on them and the long cylinder representing the osteotomy guide fixation screw in step 4) to obtain several guide drill bit rings c models for the tooth positioning device for bone harvesting area. The central hole is the guide drill bit hole c. Create several new cylinders that are moved to the bone harvesting area in step 4). A new cylinder, with the same axis as the long cylinder representing the bone graft screw on the bone graft assembly model in the bone region, and with a diameter and height of 5-6 mm, is adjusted along its long axis to position it 1-2 mm away from the surface of the jawbone in the bone harvesting area. Then, it is subjected to a "Boolean" → "Subtract" operation with the long cylinders representing the bone graft screws on the bone graft assembly model in step 4) to obtain several guide drill bit ring models for the tooth positioning device in the bone harvesting area. The central hole is the guide drill bit hole. Using "Polygons" → "Trim" → "Trim with"... Using the "Curve" command, the coronal surface of the highest point of several non-loose crowns adjacent to the bone harvesting area is cut. Then, using the "Polygons" → "Shell" command, the cut thin slice is thickened to 1-2 mm along the outer direction of the crown to form a tooth positioning base model for the bone harvesting area. Its concave surface fits the corresponding crown surface. A rod-shaped connecting structure is set to connect several guide drill ring models and the tooth positioning base model for the bone harvesting area. This connecting structure is denoted as connecting rod c. Together with the tooth positioning base plate model in the bone harvesting area, this connecting structure is denoted as connecting rod d; finally, using the menu bar "Polygons" → "Combine" command, the above-mentioned guide drill ring c model, guide drill ring model, tooth positioning base plate model in the bone harvesting area, connecting rod c model and connecting rod d model are combined to form an integrated device. Observe its positioning path to ensure that it can be positioned without interference on the bone model in the bone harvesting area, which means that it can be positioned without interference when the soft tissue is cut open and the bone surface is exposed during the operation. This integrated device is the tooth positioning device in the bone harvesting area.

[0024] 6) A complete guide plate assembly for simultaneous bone grafting and implantation: In Geomagic Studio software, the implantation guide plate and bone graft positioning and trimming plate for the bone graft and implant are placed in the corresponding positions of the preliminary edentulous bone model. The digitally designed bone graft screws are subtracted from the preliminary edentulous bone model using the "Boolean" → "Subtract" command to obtain the edentulous bone model with bone graft screw holes. The implantation guide plate and bone graft positioning and trimming plate for the bone graft and implant are fixed to the edentulous bone model using thin screws. The bone harvesting area tooth positioning device and osteotomy guide plate are placed in the corresponding positions of the preliminary bone harvesting area bone model. The digitally designed osteotomy guide retainer screws are subtracted from the preliminary bone model of the bone harvesting area using the "Boolean" → "Subtract" command to obtain a bone model of the bone harvesting area with retainer screw holes. The bone harvesting area tooth positioning device and osteotomy guide can be fixed to the bone model of the bone harvesting area using slender screws. All guide components are placed in the same coordinate system, which allows all components of the full guide used for simultaneous bone grafting and implantation to be connected into two wholes, the edentulous area and the bone harvesting area, through slender screws, providing convenience for guide storage, disinfection, transfer and clinical use.

[0025] 7) Design and measure the osteotomy depth of each osteotomy guide plate and the drilling depth at several guide drill holes in Mimics Research software to ensure that they avoid important anatomical structures such as nerves, blood vessels, and tooth roots.

[0026] 8) Import the complete guide plate for simultaneous bone grafting and implantation generated in step 6) into 3D printing software, which is located in the same coordinate system. Use medical-grade titanium alloy or cobalt-chromium alloy to 3D print the implantation guide plate, bone graft positioning and trimming plate, tooth positioning device for the bone harvesting area, and osteotomy guide plate. Use medical-grade resin to print the bone model of the edentulous area and the bone harvesting area. This includes the implantation guide plate, bone graft positioning and trimming plate, tooth positioning device for the bone harvesting area, osteotomy guide plate, bone model of the edentulous area, and bone model of the bone harvesting area. The top of the implantation guide plate is connected to the bottom of the bone graft positioning and trimming plate. After connection, the implantation guide plate and the bone graft positioning and trimming plate are used together to trim the morphology and edges of the removed bone graft and to drill holes in the original bone of the recipient area. The key edge morphology of the whole plate is the same as that of the bone fragment to be implanted in the recipient area. The bone fragment after being modified according to the bone fragment positioning and trimming plate can achieve good fit with the original bone in the recipient area. Several positioning points corresponding to the bone donor area can be set in the recipient area through the guide drill holes on the bone fragment positioning and trimming plate, so that the bone fragments can be accurately transplanted to the recipient area. The osteotomy guide plate can be connected to the tooth positioning device in the bone harvesting area, and can also be fixed in the bone harvesting area according to the several positioning points. The osteotomy guide plate is used to guide the osteotomy instrument to cut several bone fragments in the jawbone. The tooth bone model in the edentulous area and the tooth bone model in the bone harvesting area can be used for guide plate trial before operation, assist in bone fragment trimming during operation, and can also be used to determine the volume of artificial granular bone filling material to be implanted, so as to facilitate the rapid implantation after the autologous bone particles obtained from the trimmed bone fragments are fully mixed with an appropriate amount of artificial granular bone material.

[0027] The advantages of this invention are:

[0028] 1. This invention enables fully digital surgical guidance for simultaneous implant placement in bone grafting with bone fragments. It guides the entire process of bone fragment acquisition, trimming, implantation, and simultaneous implant placement. Utilizing precise guidance with a guide plate, it avoids interference between the bone graft screws and the implant position, allowing for simultaneous implant placement during bone grafting, shortening the patient's treatment cycle and reducing the number of surgeries. The technical solution provided by this invention offers clinicians a reference and guidance for the entire surgical procedure, improving surgical outcomes while reducing the steps and time required for intraoperative measurement and design, lowering surgical difficulty, and reducing reliance on the surgeon's experience. This invention is based on the concept of "designing dental implants and bone augmentation guided by the prosthesis". It uses digital software to design several three-dimensional bone graft models to be implanted and several bone graft screw models to fix them in the original bone of the edentulous area. Several bone graft positioning grooves and bone graft positioning trimming plates are designed and generated. The two components are connected by a pin and can record the shape and three-dimensional spatial position of the bone graft to be implanted. The several bone graft models are superimposed to form a whole model. By translating and rotating to a safe bone harvesting area, a suitable bone harvesting site is found. The bone graft screw holes on the bone graft model to be implanted can be moved into the bone tissue of the bone harvesting area. According to the direction of the bone graft screw hole, it is translated out of the bone surface to obtain the spatial position of the bone graft to be used in the bone harvesting area. This bone fragment positioning and trimming plate, combined with the bone fragment positioning groove, can achieve multiple functions: In use, the bone fragment positioning and trimming plate is first connected to the bone fragment positioning groove via a pin-type connection. A guide drill ring on the bone fragment positioning and trimming plate is used to drill holes in the bone defect area. The resulting holes are aligned with the holes on the cut bone fragment, thus enabling bone fragment positioning and fixation. Then, the guide drill holes and the holes on the cut bone fragment model are aligned to accurately position the bone fragment in the bone fragment positioning groove. Afterward, the edges of key parts of the bone fragment are trimmed according to the bone fragment positioning and trimming plate, roughly at the root of the bone fragment and the proximal and distal edges of the bone fragment in contact with the original bone. The edges of the bone fragment positioning and trimming plate... The shape (excluding the edge that connects with the groove) is the same as the key edge shape of the bone fragment to be implanted in the designed bone recipient area. Therefore, it can be used as a reference for trimming the bone fragment, so as to make the trimmed bone fragment fit well with the original bone in the bone recipient area as much as possible. It can also effectively avoid the increased operation time, bone fragment removal time, and surgical contamination risks caused by the surgeon repeatedly placing the bone fragment in the bone recipient area for comparison due to the lack of suitable bone fragment edge shape and bone fragment area reference. After trimming, the bone fragment positioning trimming plate is removed, and the bone fragment is fixed to the jawbone directly by using bone graft screws inserted through the bone graft screw implantation guide hole on the bone fragment positioning groove. This can guide the bone fragment to achieve accurate positioning and firm fixation in the bone recipient area.

[0029] 2. In the bone fragment acquisition process of this invention, the tooth positioning device in the bone harvesting area has multiple functions: First, the tooth positioning device in the bone harvesting area can be used to drill holes in the bone surface. These holes can be used to accurately position the osteotomy guide plate, and at the same time, they can be used directly for retention screws to firmly fix the osteotomy guide plate to the jawbone. In addition, the holes obtained by drilling holes in the bone surface using the tooth positioning device in the bone harvesting area are the holes required for fixing the cut bone fragments in the bone recipient area. They can be used for both accurate positioning of the bone fragments in the bone recipient area and for firm fixation of the bone fragments in the bone recipient area. By using retention screws to fix the osteotomy guide plate to the bone harvesting area, it is not necessary to assist in fixing the osteotomy guide plate during bone harvesting. The osteotomy guide plate part after removing the tooth positioning device is smaller, making the patient more comfortable. It can avoid the interference of the tooth positioning device and intermediate connecting device and other structures on the osteotomy instruments and the doctor's field of vision during bone harvesting. The separate design of the bone harvesting area allows for the use of different materials for different parts. For example, the osteotomy guide plate, which guides the osteotomy instruments, must ensure sufficient strength and rigidity; therefore, a high-strength metal material should be used. This material also reduces the size of the guide plate and the incision. The tooth positioning device can be printed using either metal or medical resin to reduce costs. Furthermore, the osteotomy guide plate in this invention can accurately, efficiently, and controllably harvest bone fragments. It ensures that the harvested bone fragments are approximately the same size as the bone fragments to be implanted, and the dividing grooves on the osteotomy guide plate allow for the harvesting of multiple bone fragments from a single plate within the same harvesting area. The bone fragments are then sequentially cut and removed from the jawbone, avoiding the difficulties in bone segmentation and the risk of fragment breakage and contamination that can occur with traditional freehand methods of first harvesting a block of bone and then dividing it into multiple fragments.

[0030] 3. In clinical application, the bone model of the edentulous area and bone harvesting area printed using resin material has multiple functions: First, it can be used for preoperative trial fitting of various metal guides. After the guides are printed, each guide can be tried on the printed bone model of the edentulous area and bone harvesting area. If a guide cannot be positioned correctly, it can be adjusted or redesigned in time before surgery to avoid the guide being unusable during surgery. Second, since the entire bone graft area often needs to be covered with a collagen membrane after bone grafting in clinical application, the absorbable collagen membrane can be trimmed in vitro using the guide located on the bone model of the edentulous area as a reference. Third, the trimmed bone graft can be placed in the bone graft and implantation guide before being placed in the edentulous area bone. The model is created by filling the gaps between the bone fragments and the edentulous bone model with the collected autologous bone fragments. Artificial bone granules are then poured into the gaps until they are completely filled, thus determining the volume of the implanted artificial bone granules. The mixture is then poured into a sterile cup and thoroughly mixed. Finally, after the bone fragments are fixed in the recipient area in the mouth, the mixed granular bone mixture is added. This method can meet the volume requirements of the granular bone implant in the recipient area while avoiding waste of artificial bone granules. It also ensures thorough and uniform mixing of the implanted autologous bone fragments and artificial bone granules, maximizing the bone formation, bone induction, and bone guiding effects of the autologous bone fragments, thereby potentially promoting more uniform and stable bone formation within the bone fragment.

[0031] 4. In this invention, all bone drilling operations are completed under the guidance of the guide drill bit hole according to the designed position, direction, and depth indication. Through digital virtual software design, the bone drill, bone graft screw, and implant can avoid important anatomical structures such as nerves, blood vessels, adjacent tooth roots, and maxillary sinus inside the jawbone. At the same time, it avoids the interference between the bone graft screw and the implanted implant, which would prevent the implant from being implanted at the same time as bone grafting, thus improving the safety of the operation. With the guide plate scheme proposed in this invention, all drilling operations can be performed directly on the patient's entire jawbone, which can effectively avoid the problems of accidental bone fragment detachment, contamination, and drilling difficulties that occur when drilling the removed free bone fragments (pieces) in previous surgeries due to the difficulty in fixing the free bone.

[0032] 5. This invention can be combined with other designs to add corresponding functions. For patients who also need maxillary sinus lift bone grafting, a maxillary sinus fenestration guide can be designed. Specifically, a maxillary sinus fenestration groove can be drawn and designed on the labial (buccal) side bone fragment positioning and trimming plate. At the same time, if there are impacted supernumerary teeth or impacted residual roots in the jawbone, corresponding indicator windows can also be drawn and designed on the labial (buccal) side bone fragment positioning and trimming plate for corresponding guidance during the operation, or the corresponding indicator windows can be connected separately to the tooth positioning device in the recipient area as another part of the guide.

[0033] 6. All components of this invention can be connected into two integrated units. Using slender screws, the implantation guide and bone graft positioning and trimming plate can be fixed to the edentulous area bone model. Similarly, the bone harvesting area tooth positioning device and osteotomy guide can be fixed to the bone harvesting area bone model. This allows all components of the complete guide used for simultaneous bone grafting and implantation to be connected into two integrated units—the edentulous area and the bone harvesting area—using slender screws, facilitating guide storage, disinfection, transfer, and clinical use. Attached Figure Description

[0034] Figure 1 This is an enlarged schematic diagram of the implantation guide plate and bone plate positioning and trimming plate of the bone fragment and implant of the present invention.

[0035] Figure 2 This is an enlarged left-side view of the implantation guide plate and bone plate positioning and trimming plate of the bone fragment and implant of the present invention.

[0036] Figure 3 This is an enlarged posterior view of the implantation guide plate and bone plate positioning and trimming plate of the bone graft and implant of the present invention.

[0037] Figure 4 A schematic diagram of the side structure space of the bone graft and implant guide plate of the present invention, which is connected to the bone graft positioning and trimming plate and matched with the digitally virtual designed bone graft, the digitally virtual designed bone graft screw and the digitally virtual designed implant.

[0038] Figure 5 This is a top view of the installation of the digitally virtual designed bone graft, the digitally virtual designed bone screw, and the digitally virtual designed implant according to the present invention.

[0039] Figure 6 This is a schematic diagram illustrating the use and installation of the bone graft and implantation guide plate connecting the bone graft positioning and trimming plate of the present invention.

[0040] Figure 7 This is an enlarged schematic diagram of the osteotomy guide plate of the present invention;

[0041] Figure 8 This is an enlarged schematic diagram of the structure of the osteotomy guide plate connected to the digitally virtual designed osteotomy guide plate fixation screw of the present invention.

[0042] Figure 9 This is an enlarged schematic diagram of the tooth positioning device for the bone harvesting area of ​​the present invention;

[0043] Figure 10 This is an enlarged schematic diagram of the tooth positioning device for the bone harvesting area of ​​the present invention after being matched with the osteotomy guide plate;

[0044] Figure 11This is a schematic diagram illustrating the use and installation of the bone harvesting area tooth positioning device and osteotomy guide plate of the present invention.

[0045] Figure 12 A schematic diagram illustrating the process of using the bone fragments cut by the digitally virtual osteotomy guide plate of the present invention;

[0046] Figure 13 This is an enlarged schematic diagram of the proposed implantable bone fragment a and the proposed implantable bone fragment b, which are digitally designed virtually according to the present invention.

[0047] Figure 14 This is a schematic diagram showing the installation of all components of a full-process guide plate for simultaneous implantation of bone grafts in bone grafting according to the present invention.

[0048] In the picture:

[0049] 1-Implant guide ring; 2-Recipient tooth positioning plate; 3-Connecting rod a; 4-Bone fragment positioning groove a; 5-Bone fragment positioning groove b; 6-Bone fragment positioning trimming plate a; 7-Bone fragment positioning trimming plate b; 8-Connecting rod b; 9-Guide drill hole a1; 10-Guide drill hole a2; 11-Guide drill hole b1; 12-Guide drill hole b2; 13-Guide drill ring a1; 14-Guide drill ring a2; 15-Guide drill ring b1; 16-Guide 17-Guide drill bit ring b2; 18-Guide hole a1 for bone graft implantation; 19-Guide hole a2 for bone graft implantation; 20-Guide hole b2 for bone graft implantation; 21-Observation window for bone graft placement; 22-Tooth positioning base plate for bone harvesting area; 23-Guide drill bit hole A1; 24-Guide drill bit hole A2; 25-Guide drill bit ring A1; 26-Guide drill bit ring A2; 27-Guide drill bit hole c; 28-Guide drill bit ring c; 29- Connecting rod d; 30-Osteotomy guide plate retention hole c; 31-Osteotomy guide plate 1; 32-Osteotomy guide plate 2; 33-Osteotomy guide plate 3; 34-Osteotomy guide plate 4; 35-Osteotomy guide plate 5; 36-Osteotomy guide plate separator frame; 37-Digitally virtual designed implant; 38-Digitally virtual designed bone fragment a; 39-Digitally virtual designed bone fragment b; 40-Digitally virtual designed bone graft screw a1; 41-Digitally virtual designed bone graft screw a2; 42-Osteotomy guide plate outer frame; 43-Osteotomy guide plate outer frame line; 44-Connecting rod c; 45-Digitally virtual designed osteotomy guide plate retention screw; 46-Digitally virtual designed bone graft screw hole a1; 47-Digitally virtual designed bone graft screw hole a2; 48-Osteotomy guide plate separator cutting groove; 49-Digitally virtual designed jawbone osteotomy plane; 50-Edible bone model; 51-Bone model of bone harvesting area. Detailed Implementation

[0050] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the invention.

[0051] See Figure 1-13 ;

[0052] This invention provides a complete guide plate for simultaneous bone grafting and implantation, comprising an implantation guide plate for bone grafts and implants, a bone graft positioning and trimming plate, a tooth positioning device for the bone harvesting area, an osteotomy guide plate, a bone model of the edentulous area, and a bone model of the bone harvesting area. The top of the implantation guide plate for bone grafts and implants is connected to the bottom of the bone graft positioning and trimming plate. The osteotomy guide plate can be connected to the tooth positioning device for the bone harvesting area and can also be fixed to the bone harvesting area according to the plurality of positioning points. The bone model of the edentulous area and the bone model of the bone harvesting area can be used for guide plate trial fitting and can also be used to determine the volume of artificial granular bone filling material to be implanted, so as to facilitate rapid implantation after thorough mixing of autologous bone particles obtained from bone graft trimming with an appropriate amount of artificial granular bone material.

[0053] Wherein: the bone graft and implantation guide plate includes an implantation guide ring (1), a recipient tooth positioning base plate (2), a connecting rod a (3), a bone graft positioning groove a (4), a bone graft positioning groove b (5), and a connecting rod b (8); the recipient tooth positioning base plate (2) is connected to the implantation guide ring (1) through the connecting rod a (3), and the bone graft positioning groove a (4) and the bone graft positioning groove b (5) are connected to the recipient tooth positioning base plate (2) through the connecting rod b (8); the bone graft positioning groove a (4) includes a bone graft implantation guide hole a1 (17), a bone graft implantation guide hole a2 (18), and a bone graft placement observation window (21), and the bone graft positioning groove b (5) includes a bone graft implantation guide hole b1 (19) and a bone graft implantation guide hole b2 (20).

[0054] Wherein: the bone fragment positioning and trimming plate includes bone fragment positioning and trimming plate a (6) and bone fragment positioning and trimming plate b (7); wherein, bone fragment positioning and trimming plate a (6) includes guide drill bit ring a1 (13) and guide drill bit ring a2 (14), the hole passage in the middle of guide drill bit ring a1 (13) is guide drill bit hole a1 (9), and the hole passage in the middle of guide drill bit ring a2 (14) is guide drill bit hole a2 (10); bone fragment positioning and trimming plate b (7) includes Guide drill ring b1 (15) and guide drill ring b2 (16), the hole passage in the middle of guide drill ring b1 (15) is guide drill hole b1 (11), and the hole passage in the middle of guide drill ring b2 (16) is guide drill hole b2 (12); the bone piece positioning and trimming plate a (6) and bone piece positioning and trimming plate b (7) can be connected by digitally virtual designed bone graft nail a1 (40) and digitally virtual designed bone graft nail a2 (41).

[0055] Wherein: the bone graft and implantation guide plate includes an implantation guide ring (1), a recipient tooth positioning base plate (2), a connecting rod a (3), a bone graft positioning groove a (4), a bone graft positioning groove b (5), and a connecting rod b (8); the recipient tooth positioning base plate (2) is connected to the implantation guide ring (1) through the connecting rod a (3), and the bone graft positioning groove a (4) and the bone graft positioning groove b (5) are connected to the recipient tooth positioning base plate (2) through the connecting rod b (8); the bone graft positioning groove a (4) includes a bone graft implantation guide hole a1 (17), a bone graft implantation guide hole a2 (18), and a bone graft placement observation window (21); the bone graft positioning groove b (5) includes a bone graft implantation guide hole b1 (19) and a bone graft implantation guide hole b2 (20).

[0056] Wherein: the bone fragment positioning and trimming plate includes bone fragment positioning and trimming plate a (6) and bone fragment positioning and trimming plate b (7); wherein, bone fragment positioning and trimming plate a (6) includes guide drill bit ring a1 (13) and guide drill bit ring a2 (14), the hole passage in the middle of guide drill bit ring a1 (13) is guide drill bit hole a1 (9), and the hole passage in the middle of guide drill bit ring a2 (14) is guide drill bit hole a2 (10); bone fragment positioning and trimming plate b (7) includes Guide drill bit ring b1 (15) and guide drill bit ring b2 (16), the hole passage in the middle of guide drill bit ring b1 (15) is guide drill bit hole b1 (11), and the hole passage in the middle of guide drill bit ring b2 (16) is guide drill bit hole b2 (12); the bone piece positioning and trimming plate a (6) and bone piece positioning and trimming plate b (7) can be connected by digitally virtual designed bone graft nail a1 (40) and digitally virtual designed bone graft nail a2 (41);

[0057] Wherein: the tooth positioning device for the bone harvesting area includes a tooth positioning base plate (22), a guide drill ring A1 (25), a guide drill ring A2 (26), a guide drill ring c (28), a connecting rod d (29), and a connecting rod c (44); wherein, the hole passage in the middle of the guide drill ring A1 (25) is the guide drill hole A1 (23), the hole passage in the middle of the guide drill ring A2 (26) is the guide drill hole A2 (24), and the hole passage in the middle of the guide drill ring c (28) is the guide drill hole c (27).

[0058] The osteotomy guide plate includes an outer frame (42) and a partition frame (36); wherein, the outer frame (42) has osteotomy guide plate 2 (32), osteotomy guide plate 3 (33), osteotomy guide plate 4 (34), osteotomy guide plate 5 (35) and osteotomy guide plate fixation hole c (30); the partition frame (36) has osteotomy guide plate 1 (31); the groove between the outer frame (42) and the partition frame (36) is the osteotomy guide plate partition cutting groove (48);

[0059] The tooth positioning base plate (22) in the bone harvesting area can be connected to the outer frame of the osteotomy guide plate (42) via connecting rod d (29), connecting rod c (44), guide drill ring A1 (25), guide drill ring A2 (26), and guide drill ring c (28).

[0060] The present invention provides a complete guide plate for simultaneous implantation of bone grafts in bone grafting and its manufacturing method, comprising the following design steps:

[0061] 1) Reconstructing the jawbone model and overlaying the dental arch scan model to generate the edentulous area bone model and the bone harvesting area bone model: Obtain the patient's dental arch scan model, which can be obtained through intraoral scanning or by scanning a plaster model of the patient's dental arch. Take a CBCT scan of the patient's jawbone, obtain DICOM format data, and import it into Mimics Research software. Use the "Masks" → "Calculate Part" command to reconstruct the jawbone model, including the original bone and teeth of the edentulous area and the bone and teeth of the bone harvesting area. Save the model as STL format. Import the jawbone model and dental arch scan data into Geomagic Studio software. Select the crown portion of the teeth on the jawbone model, right-click the jawbone model, select "pin", click "Alignment" → "Best Fit Alignment" in the menu bar, select the dental arch scan model in the "Float" box, and click "Apply" to register the dental arch scan model to the jawbone model with the crown portion of the teeth on the jawbone model as a reference. Then click "Polygons" → "Trim" → "Trim with" in the menu bar. "Curve" to cut off the crown portion of the jawbone model and the non-crown portion of the dental arch scan model respectively. Select the two cut models and click "Polygons" → "Combine" in the menu bar to combine them into a whole, i.e., the jawbone model. Use the "Polygons" → "Trim" → "Trim with Curve" function to trim the jawbone model, retaining only a few teeth and jawbone surfaces adjacent to the edentulous area and the bone harvesting area, respectively generating preliminary jawbone models of the edentulous area and the bone harvesting area.

[0062] 2) Design of implant and bone models for the edentulous area: In Mimics Research software, import a standard crown model for the corresponding edentulous site. Use the "Move" and "Rotate" commands to move the standard crown model to the edentulous area. Then, adjust the morphology of the standard crown model according to the edentulous space, adjacent teeth, and opposing teeth to form several target crown restorations. Design the position, diameter, and length of several implants to be placed according to the target crowns. The implants to be placed can be represented by cylinders of different diameters and lengths generated using the "Analyze" menu → "Cylinder" → "Draw" command. The minimum number of implants to be placed is one, ensuring that the implant is located within the jawbone to obtain sufficient initial stability, and that the position and angle of the implant meet the restorative requirements of the target restoration. The long axis of the implant usually extends from the target crown restoration. The implant protrudes from the center of the lingual-palatal surface of the anterior teeth or the occlusal surface of the posterior teeth, with the ridge of the implant approximately 3-4 mm from the gingival margin of the target tooth crown. Then, the alveolar bone morphology of the target bone increment at the bone defect site in the edentulous area is reconstructed. The specific steps are as follows: Using the "Duplicate" command, several cylinders representing the proposed implant are copied. Right-clicking the copied cylinder model, selecting the "Properties" command, and increasing the "Radius" value by 2 mm will yield several new cylinders with a radius 2 mm larger than the cylinder representing the proposed implant. Based on the requirement of 2 mm of bone volume around the implant to maintain its long-term stability, these thickened cylinders represent the range of bone increment that needs to be increased. Several cylinders with a thickness of approximately 0 mm are generated on the labial or buccal side and the lingual or palatal side of these thickened cylinders.A 5-2mm thin slice is used to ensure the thickened cylinder is completely positioned within and in contact with the bone slice on the labial, buccal, lingual, or palatal side. The angle of the bone slice is adjusted to allow for greater contact between the apical and mesial / distal sides of the bone slice and the remaining alveolar bone in the edentulous area. The ridge crest of the bone slice is at the same height as the ridge crest of the implant or slightly extends coronally beyond the implant ridge crest by 0-1mm. This is achieved using a Boolean... The "Operation" → "Subtract" command subtracts several thin bone slices from the original bone in the edentulous area to obtain several digitally designed bone slice models for implantation. This design aims to ensure a 2mm bone volume around the implant, with the implant ridge tip flush with the augmented bone surface or located 0-1mm below it. Next, several long cylinders with a diameter of 1-2mm are created, roughly perpendicular to the bone slice models and penetrating both the labial / buccal and lingual / palatal bone slices and the original bone in the edentulous area. The position and angle of these cylinders must avoid the implant and important anatomical structures such as tooth roots, nerves, and blood vessels within the jawbone of the edentulous area, leaving a safety distance of at least 1-2mm. These cylinders represent the bone graft screws that will fix the bone slices to the jawbone, thus obtaining digitally designed bone graft screw models. Finally, the bone slice models are compared with the bone graft screw models using "Boolean Operation".

[0063] The “Subtract” command performs subtraction to obtain a model of the bone graft to be implanted with several bone graft holes.

[0064] 3) Fabrication of bone fragments and implant placement guides: In Geomagic Studio software, right-click on the several cylindrical models representing the implants designed in step 2), select the "Duplicate" command to copy them, and then change the height of the copied cylinders to generate several new cylinders. The height of the new cylinders should be from 3mm to 7mm from the original bone crest of the edentulous area, i.e., a length of 4mm. Select a pressure plate with a suitable diameter, ensuring the radius of the pressure plate in the implant guide toolbox is larger than the radius of the implant. Then, create several thickened cylinders with the same axis and length as the new cylinders, but with a radius 2mm larger than the selected pressure plate in the implant guide toolbox. Create several cylinders representing the pressure plates with the same axis and length as the new cylinders, but with the same radius as the selected pressure plate in the implant guide toolbox. Finally, connect the thickened cylinders and the cylinders representing the pressure plates using "Boolean →..."

[0065] The "Subtract" command subtracts to obtain several implant guide rings, each 4mm long and 2mm thick. The passage in the middle of the implant guide ring is the implantation path. The position and angle of the implant guide ring can guide the position and angle of implantation, and the height of the implant guide ring can indicate the depth of implantation. The implant guide ring, used in conjunction with the pressure plate in the matching implant guide tool kit, can accurately guide the preparation of the implant cavity and the precise implantation. On both sides of the edentulous area, the "Polygons" → "Trim" → "Trim with Curve" command is used to cut thin slices of the coronal surface of several non-loose crowns adjacent to the edentulous area on both sides. Then, the "Polygons" → "Shell" command is used to thicken the cut crown shell slices to 1-2mm along the outer direction of the crown to form a target tooth positioning base plate model, which is a concave shell with a thickness of 1-2mm, and the inner concave surface fits the corresponding crown surface.Using the "Bounded Components" function, select several thin surface models of the inner and outer surfaces of the bone graft models to be implanted, as well as the surface model of the crest near the alveolar ridge. Similarly, using the "Polygons" → "Shell" command, thicken the three thin surface planes selected from each bone graft model to 0.5-1mm along the outer side of the bone graft model to form a groove-like device. Extend the cylindrical model representing the bone graft nail to be implanted by 2-3mm at each end along the long axis of the cylinder to form several new cylinders. Then generate several... The new cylinder has the same axis and length, but a thickened cylinder with a radius increased by 1-2 mm. Subtracting several grooved devices from these thickened cylinders using the "Boolean" → "Subtract" command yields several grooved devices with preliminary bone graft implantation guide holes. Subtracting these thickened cylinders from the new cylinders using the "Boolean" → "Subtract" command again yields several hollow rings. These are then processed using "Polygons" → "Trim" → "Trim". The "with Plane" function uses the inner surface plane of the vertical outer groove plate of each grooved device to trim the hollow ring. The portion cut off in the middle of the hollow ring is deleted, retaining the short hollow rings located inside the initial bone graft implantation guide hole on the outer groove plate of each grooved device and on the outer side of the grooved device away from the original bone. These retained short hollow rings are the guide drill rings, and their internal central passage is the guide drill hole, which can be used to guide the drill bit to drill holes in the original bone of the edentulous area. Several guide drill rings are added to several grooved devices using the "Boolean" → "Union" command to obtain the initial bone graft positioning groove. Then, the "Polygons" → "Trim" → "Trim with" command is used to... The "Plane" function divides the initial bone graft positioning slots using a plane that horizontally bisects several guide rings. It then duplicates ("Duplicate") and deletes ("Delete") the corresponding guide rings and their basal portions on the labial or buccal and lingual or palatal sides of the initial bone graft positioning slots. A bone graft placement observation window is then created, resulting in several bone graft positioning slots with semi-circular implantation guide holes. The corresponding duplicated portions are the guide rings and the initial bone graft positioning slots. The root portion can be added using the "Boolean" → "Union" command to generate a bone fragment positioning and trimming plate. This bone fragment positioning and trimming plate has a guide drill ring. The guide drill ring and the bone graft screw implantation guide hole on the corresponding bone fragment positioning groove are plug-in connected. The bone fragment positioning and trimming plate can be inserted into the bone fragment positioning groove using the guide drill ring on it to form a combined device, which is used to drill holes in the original bone of the edentulous area. After removing the bone fragment positioning and trimming plate, the bone graft screw implantation guide hole on the bone fragment positioning groove can be used to guide the implantation of the bone graft screw.Design a rod-shaped connecting structure to connect several implant guide rings and the recipient tooth positioning base plate model. This connecting structure is denoted as connecting rod a. Design a rod-shaped connecting structure to connect several bone segment positioning slots and the recipient tooth positioning base plate model. This connecting structure is denoted as connecting rod b. Finally, use the menu bar "Polygons" → "Combine" command to combine the above implant guide ring model, recipient tooth positioning base plate model, connecting rod a model, bone segment positioning slot model, and connecting rod b model to form an integrated device, which is the bone segment and implant placement guide. Observe its placement path to ensure that it can be placed without interference on the edentulous bone model, that is, to ensure that it can be placed without interference when the soft tissue is cut open and the bone surface is exposed during the operation.

[0066] 4) Selection of bone harvesting area and generation of osteotomy guide plate: In Geomagic Studio software, using the "Object Mover" function under the "Tools" menu, several digitally designed bone graft models with bone graft screw holes generated in step 2) are moved and stacked together parallel to the long axis of the digitally designed bone graft screws. Using the "Polygons" → "Combine" command in the menu bar, the stacked bone graft models are combined into a single whole, i.e., a bone graft combination model with bone graft screw holes. Then, using "Tools" → "Object Mover"... The "Mover" function moves the bone graft model to a safe bone harvesting area on the jawbone model. Adjusting the placement of the bone graft model ensures the following: ① The bone graft model is at least 2-3 mm away from important anatomical structures such as nerve canals, blood vessels, and tooth roots within the jawbone; ② The direction of the bone graft screw holes on the bone graft model is approximately perpendicular to the surface of the jawbone in the harvesting area; ④ The bone graft model is completely located within the jawbone tissue in the harvesting area; ⑤ The outer contour of the bone graft model should be as close as possible to the bone surface of the harvesting area. A projection of the bone graft model onto the jawbone surface in the harvesting area is then made along the direction of the bone graft screw holes on the bone graft model. Based on the projection of the outermost contour of the surface thin slice, several straight and / or curved osteotomy lines and osteotomy planes are generated. Several vertical osteotomy planes are also created based on the dividing planes between several bone slices in the bone slice assembly model. The jawbone surface surrounding the bone harvesting area is selected, and the "Polygons" → "Shell" command is used to evenly thicken the selected jawbone surface thin slice by 2-3 mm outwards to form a jawbone surface thin plate. Then, the "Polygons" → "Combine" command is used to combine each osteotomy plane with the thin plate. Finally, "Polygons" → "Trim" → "Trim" is used on the thin plate. Use the "with Plane" / "Trim with Curve" command to draw the outer border of the osteotomy guide, ensuring that: ① there is a 1-2mm distance between the outer border of the osteotomy guide and each osteotomy plane, which is the width of the outer frame of the osteotomy guide; ② design several long cylinders with a diameter of 1-2mm between the outer border of the osteotomy guide and the osteotomy plane to represent the osteotomy guide fixation screws. Adjust the position and angle of the long cylinders so that there is a 2-3mm safe distance between their implantation position and important anatomical structures, and the fixation screws are about 1-2mm wide from the outer border of the osteotomy guide.The overlapping portions between several osteotomy planes and the thickened thin plate of the jawbone surface are several osteotomy guide plates. The portions of the thickened thin plate of the jawbone surface outside the osteotomy guide plates and the outer frame of the osteotomy guide plates are deleted to form a preliminary osteotomy guide plate model. Among them, several horizontal partitions between the vertical osteotomy planes are osteotomy guide plate partitions. A linear shallow groove is generated at the junction of the osteotomy guide plate partitions and the outer frame of the osteotomy guide plate, which is the osteotomy guide plate partition cutting groove. It can be used to indicate the position for cutting the osteotomy guide plate during the operation. Then, by performing the "Boolean" → "Subtract" operation on several long cylinders representing osteotomy guide plate fixation screws and the osteotomy guide plate model, an osteotomy guide plate model with several osteotomy guide plate fixation holes c can be obtained.

[0067] 5) Generation of tooth positioning device for bone harvesting area: In Geomagic Studio software, create several new cylinders with the same axis as the long cylinder representing the osteotomy guide fixation screw in step 4), and a diameter and height of 5-6mm. Adjust their spatial position along the long axis so that they are 1-2mm away from the jawbone surface of the bone harvesting area. Perform a "Boolean" → "Subtract" operation on them and the long cylinder representing the osteotomy guide fixation screw in step 4) to obtain several guide drill bit rings c models for the tooth positioning device for bone harvesting area. The central hole is the guide drill bit hole c. Create several new cylinders that are moved to the bone harvesting area in step 4). A new cylinder, with the same axis as the long cylinder representing the bone graft screw on the bone graft assembly model in the bone region, and with a diameter and height of 5-6 mm, is adjusted along its long axis to position it 1-2 mm away from the surface of the jawbone in the bone harvesting area. Then, it is subjected to a "Boolean" → "Subtract" operation with the long cylinders representing the bone graft screws on the bone graft assembly model in step 4) to obtain several guide drill bit ring models for the tooth positioning device in the bone harvesting area. The central hole is the guide drill bit hole. Using "Polygons" → "Trim" → "Trim with"... Using the "Curve" command, the coronal surface of the highest point of several non-loose crowns adjacent to the bone harvesting area is cut. Then, using the "Polygons" → "Shell" command, the cut thin slice is thickened to 1-2 mm along the outer direction of the crown to form a tooth positioning base model for the bone harvesting area. Its concave surface fits the corresponding crown surface. A rod-shaped connecting structure is set to connect several guide drill ring models and the tooth positioning base model for the bone harvesting area. This connecting structure is denoted as connecting rod c. Together with the tooth positioning base plate model in the bone harvesting area, this connecting structure is denoted as connecting rod d; finally, using the menu bar "Polygons" → "Combine" command, the above-mentioned guide drill ring c model, guide drill ring model, tooth positioning base plate model in the bone harvesting area, connecting rod c model and connecting rod d model are combined to form an integrated device. Observe its positioning path to ensure that it can be positioned without interference on the bone model in the bone harvesting area, which means that it can be positioned without interference when the soft tissue is cut open and the bone surface is exposed during the operation. This integrated device is the tooth positioning device in the bone harvesting area.

[0068] 6) A complete guide plate assembly for simultaneous bone grafting and implantation: In Geomagic Studio software, the implantation guide plate and bone graft positioning and trimming plate for the bone graft and implant are placed in the corresponding positions of the preliminary edentulous bone model. The digitally designed bone graft screws are subtracted from the preliminary edentulous bone model using the "Boolean" → "Subtract" command to obtain the edentulous bone model with bone graft screw holes. The implantation guide plate and bone graft positioning and trimming plate for the bone graft and implant are fixed to the edentulous bone model using thin screws. The bone harvesting area tooth positioning device and osteotomy guide plate are placed in the corresponding positions of the preliminary bone harvesting area bone model. The digitally designed osteotomy guide retainer screws are subtracted from the preliminary bone model of the bone harvesting area using the "Boolean" → "Subtract" command to obtain a bone model of the bone harvesting area with retainer screw holes. The bone harvesting area tooth positioning device and osteotomy guide can be fixed to the bone model of the bone harvesting area using slender screws. All guide components are placed in the same coordinate system, which allows all components of the full guide used for simultaneous bone grafting and implantation to be connected into two wholes, the edentulous area and the bone harvesting area, through slender screws, providing convenience for guide storage, disinfection, transfer and clinical use.

[0069] 7) Design and measure the osteotomy depth of each osteotomy guide plate and the drilling depth at several guide drill holes in Mimics Research software to ensure that they avoid important anatomical structures such as nerves, blood vessels, and tooth roots.

[0070] 8) Import the complete guide plate for simultaneous bone grafting and implantation generated in step 6) into 3D printing software, which is located in the same coordinate system. Use medical-grade titanium alloy or cobalt-chromium alloy to 3D print the implantation guide plate, bone graft positioning and trimming plate, tooth positioning device for the bone harvesting area, and osteotomy guide plate. Use medical-grade resin to print the bone model of the edentulous area and the bone harvesting area. This includes the implantation guide plate, bone graft positioning and trimming plate, tooth positioning device for the bone harvesting area, osteotomy guide plate, bone model of the edentulous area, and bone model of the bone harvesting area. The top of the implantation guide plate is connected to the bottom of the bone graft positioning and trimming plate. After connection, the implantation guide plate and the bone graft positioning and trimming plate are used together to trim the morphology and edges of the removed bone graft and to drill holes in the original bone of the recipient area. The key edge morphology of the whole plate is the same as that of the bone fragment to be implanted in the recipient area. The bone fragment after being modified according to the bone fragment positioning and trimming plate can achieve good fit with the original bone in the recipient area. Several positioning points corresponding to the bone donor area can be set in the recipient area through the guide drill holes on the bone fragment positioning and trimming plate, so that the bone fragments can be accurately transplanted to the recipient area. The osteotomy guide plate can be connected to the tooth positioning device in the bone harvesting area, and can also be fixed in the bone harvesting area according to the several positioning points. The osteotomy guide plate is used to guide the osteotomy instrument to cut several bone fragments in the jawbone. The tooth bone model in the edentulous area and the tooth bone model in the bone harvesting area can be used for guide plate trial before operation, assist in bone fragment trimming during operation, and can also be used to determine the volume of artificial granular bone filling material to be implanted, so as to facilitate the rapid implantation after the autologous bone particles obtained from the trimmed bone fragments are fully mixed with an appropriate amount of artificial granular bone material.

[0071] Method of using this invention (can be operated on a model):

[0072] 1. Trial fitting: Trial fitting of bone grafts and implantation guides and bone graft positioning and trimming plates on the bone model of the edentulous area; trial fitting of bone harvesting area tooth positioning device and osteotomy guide on the bone model of the bone harvesting area. If the guide cannot be positioned or is unstable during trial fitting, the corresponding components should be redesigned and manufactured in a timely manner.

[0073] 2. Disinfection: Before the operation, a high-pressure high-temperature sterilizer was used to sterilize all the metal components of a full-process guide plate used for simultaneous bone grafting and implantation; ethylene oxide was used to sterilize the edentulous bone model and the bone harvesting area model made of resin material.

[0074] 3. Expose the bone surface of the surgical area: Design the incision based on the position of the guide plate during the trial fitting, and expose the bone surface of the edentulous area and the bone harvesting area respectively;

[0075] 4. Implant placement and primary bone drilling in the edentulous area: The bone graft and implant guide plate are positioned in the corresponding tooth position in the edentulous area, ensuring that the groove of the recipient tooth positioning plate is fully fitted to the corresponding tooth surface. Using a series of implant cavity preparation drills and a clamping plate adapted to the inner diameter of the implant guide ring, the primary bone in the edentulous area is prepared for implant cavity preparation according to the designed drilling depth through the holes inside several implant guide rings. After cavity preparation, several implants of the corresponding size are inserted along the implant guide rings to complete the implant placement surgery. Then, several bone graft positioning and trimming plates are connected to the corresponding bone graft positioning grooves through guide drill rings and bone graft screws inserted into the guide holes using a pin-type connection. A bone drill is used to drill holes in the primary bone in the edentulous area along the guide drill holes on the bone graft positioning and trimming plates according to the designed drilling depth. After drilling is completed, the bone graft and implant guide plate, along with the bone graft positioning and trimming plates connected to them, are removed.

[0076] 4. Drilling, positioning, and fixing the osteotomy guide plate in the bone harvesting area: Position the tooth positioning device in the corresponding tooth row of the patient's bone harvesting area, ensuring that the groove of the tooth positioning plate is fully fitted to the corresponding tooth surface. Use a bone drill to drill holes along the inner diameter of several guide drill holes on the tooth positioning device to the designed drilling depth. After completing all drilling, remove the tooth positioning device. At this point, several screw retention holes are left on the bone surface of the proposed bone harvesting site, which correspond to the positions of several osteotomy guide retention holes on the osteotomy guide plate. Align the positions of the several osteotomy guide retention holes on the osteotomy guide plate with the positions of the holes on the bone surface completed under the guidance of the guide drill holes c of the tooth positioning device. Directly use screws to fix the osteotomy guide plate to the bone surface of the proposed bone harvesting site along the inner diameter of each osteotomy guide retention hole.

[0077] 5. Obtaining autologous bone fragments using osteotomy guides: Using an ultrasonic osteotome or fissure drill, first closely adhere to the four outermost osteotomy guides. According to the position and direction indicated by the osteotomy guides, cut the bone according to the designed osteotomy depths of each plane. After cutting, the first autologous bone fragment can be obtained. Take out the outermost bone fragment with the bone graft screw hole, and use the fissure drill to cut along the dividing cutting groove of the osteotomy guide. Cut off the dividing frame of the osteotomy guide and remove it. Then continue to complete the osteotomy along the osteotomy guide within one grid inside it to obtain the next bone fragment. Repeat this process until all the designed bone fragments with bone graft screw holes are obtained. Loosen the retaining screws of the osteotomy guide and remove the osteotomy guide.

[0078] 6. Positioning and trimming the harvested autologous bone fragments: Place the obtained bone fragments into the corresponding bone fragment positioning slots connected to the bone fragment positioning and trimming plates, ensuring that the bone implant screw holes on the bone fragments align with the guide drill holes on the bone fragment positioning and trimming plates to accurately position the bone fragments within the positioning slots. Use tools such as straight milling heads to trim the bone fragments along the apical and mesial-distal edges of the bone fragment positioning and trimming plates and the mesial-distal edges of the bone fragment positioning slots, removing excess material. After trimming, remove the bone fragment positioning and trimming plates. Place the bone fragments containing the bone fragments and the implantation guide plate of the implant into the edentulous bone model, checking the fit between the edges of the bone fragments and the portion representing the original bone on the edentulous bone model. If there are areas of poor fit, continue trimming the bone fragments until they fit well with the portion representing the original bone on the edentulous bone model.

[0079] 7. Obtain an appropriate amount of uniformly mixed autologous bone fragments and artificial granular bone substitute material: Grind the autologous bone fragments obtained during the bone fragment trimming process into granular autologous bone fragments, and pour them into the bone fragments placed between the bone fragments and the implant guide placed on the bone model of the edentulous area in step 6. Then pour artificial granular bone substitute material into the remaining gaps between the bone fragments until the designed bone increment space between the bone fragments is filled. After that, collect the granular autologous bone fragments and artificial granular bone substitute material between the bone fragments into a sterile container and mix them thoroughly for later use.

[0080] 8. Positioning and fixing bone fragments in the edentulous area: Place the bone fragments (with the bone fragments removed and the implant guide plate containing the bone fragments) into the corresponding positions in the edentulous area. Then, pass several bone graft screws sequentially through the corresponding bone graft screw implantation guide holes on the bone fragments and implant guide plates, the bone graft screw holes on the bone fragments, the holes in the original bone of the edentulous area, the bone graft screw holes on the bone fragments on the other side, and the bone graft screw guide holes on the bone fragments and implant guide plates on the other side. This achieves precise fixation of the bone fragments to the original bone of the edentulous area according to the designed position. Finally, remove the bone fragments and implant guide plates.

[0081] 9. Implantation of granular bone augmentation material: The uniformly mixed bone augmentation material obtained in step 7 is implanted between the bone fragments;

[0082] 10. Suturing: Perform tension-reducing sutures on the soft tissue of the recipient bone area and suture the donor bone area.

[0083] Because this invention is a customized modular guide, all components of the guide need to be integrated into a single unit to prevent interchangeability with components of other guides. Therefore, before sterilization, the bone graft and implant placement guide, along with the bone graft positioning and trimming plate, can be fixed to the edentulous bone model using slender screws. Similarly, the bone harvesting area tooth positioning device and osteotomy guide can be fixed to the bone harvesting area bone model using slender screws, forming two separate parts for easy sterilization and storage. (Reference) Figure 14 .

[0084] As described above, the present invention can be sufficiently realized. The above description is merely a reasonable embodiment of the present invention, and the scope of protection of the present invention includes, but is not limited to, these embodiments. Any non-substantial modifications or alterations made by those skilled in the art based on the technical solutions of the present invention are included within the scope of the present invention.

Claims

1. A complete guide plate for simultaneous implantation of bone grafts in bone grafting, characterized in that: The device includes an implantation guide for bone fragments and implants, a bone fragment positioning and trimming plate, a tooth positioning device for the bone harvesting area, an osteotomy guide, a bone model of the edentulous area, and a bone model of the bone harvesting area. The top of the implantation guide for bone fragments and implants is connected to the bottom of the bone fragment positioning and trimming plate. The osteotomy guide can be connected to the tooth positioning device for the bone harvesting area and can also be fixed to the bone harvesting area according to several positioning points. The bone model of the edentulous area and the bone model of the bone harvesting area can be used for trial fitting of the guide. The implantation guide plate for the bone graft and implant includes an implant guide ring (1), a recipient tooth positioning base plate (2), a connecting rod a (3), a bone graft positioning groove a (4), a bone graft positioning groove b (5), and a connecting rod b (8); the recipient tooth positioning base plate (2) is connected to the implant guide ring (1) via the connecting rod a (3), and the bone graft positioning groove a (4) and the bone graft positioning groove b (5) are connected to the recipient tooth positioning base plate (2) via the connecting rod b (8); the bone graft positioning groove a (4) includes a bone graft implantation guide hole a1 (17), a bone graft implantation guide hole a2 (18), and a bone graft placement observation window (21); the bone graft positioning groove b (5) includes a bone graft implantation guide hole b1 (19) and a bone graft implantation guide hole b2 (20). The bone fragment positioning and trimming plate includes bone fragment positioning and trimming plate a (6) and bone fragment positioning and trimming plate b (7); wherein, bone fragment positioning and trimming plate a (6) includes guide drill bit ring a1 (13) and guide drill bit ring a2 (14), the hole passage in the middle of guide drill bit ring a1 (13) is guide drill bit hole a1 (9), and the hole passage in the middle of guide drill bit ring a2 (14) is guide drill bit hole a2 (10); bone fragment positioning and trimming plate b (7) includes guide drill bit ring a1 (9) and guide drill bit ring a2 (14) and guide drill bit ring a2 (10); The guide drill bit ring b1 (15) and the guide drill bit ring b2 (16) are connected by a guide drill bit hole b1 (11) in the middle of the guide drill bit ring b1 (15) and a guide drill bit hole b2 (12) in the middle of the guide drill bit ring b2 (16). The bone fragment positioning and trimming plate a (6) and the bone fragment positioning and trimming plate b (7) can be connected by a digitally virtual bone graft nail a1 (40) and a digitally virtual bone graft nail a2 (41). The tooth positioning device for the bone harvesting area includes a tooth positioning base plate (22), a guide drill ring A1 (25), a guide drill ring A2 (26), a guide drill ring c (28), a connecting rod d (29), and a connecting rod c (44); wherein, the hole passage in the middle of the guide drill ring A1 (25) is the guide drill hole A1 (23), the hole passage in the middle of the guide drill ring A2 (26) is the guide drill hole A2 (24), and the hole passage in the middle of the guide drill ring c (28) is the guide drill hole c (27). The osteotomy guide plate includes an osteotomy guide plate outer frame (42) and an osteotomy guide plate partition frame (36); wherein, the osteotomy guide plate outer frame (42) has osteotomy guide plate 2 (32), osteotomy guide plate 3 (33), osteotomy guide plate 4 (34), osteotomy guide plate 5 (35) and osteotomy guide plate retention hole c (30); the osteotomy guide plate partition frame (36) has osteotomy guide plate 1 (31); the groove between the osteotomy guide plate outer frame (42) and the osteotomy guide plate partition frame (36) is the osteotomy guide plate partition cutting groove (48); the tooth positioning base plate (22) of the bone harvesting area can be connected to the osteotomy guide plate outer frame (42) through connecting rod d (29), connecting rod c (44), guide drill ring A1 (25), guide drill ring A2 (26), and guide drill ring c (28).

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