Digital guide plate for oral cavity tumor excision and contemporaneous bone implantation and preparation method thereof

Abstract

The invention discloses a digital guide plate for oral cavity tumor excision and contemporaneous bone implantation and a preparation method, the digital guide plate comprises a tumor excision indication guide plate, an autogenous bone osteotomy indication guide plate, an implantation indication guide plate, an implantation reduction guide plate and an autogenous bone reduction guide plate, and the preparation method comprises the following steps: constructing a virtual model and determining a tumor excision range; oral implantation planning is conducted, the position and range of a reconstructed titanium plate are determined, a digital guide plate is printed in a 3D mode, and a temporary abutment is connected to an implantation reduction guide plate through model operation training. By applying the digital guide plate, tumor resection, autogenous bone resection, autogenous bone reduction and precise implant implantation can be achieved in the same operation process. The digitized guide plate is used for guiding the implant to be implanted, the position of the implant is used as a reference, autogenous bone reduction can be accurately guided, and the precision of implant repair can be remarkably improved. The technical problems that in the prior art, the implant position is judged according to experience of doctors, and the autogenous bone reduction precision is not ideal can be solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a digital guide plate for oral tumor resection with simultaneous bone implantation and a preparation method thereof. Background Art

[0002] In combined oral implant and maxillofacial surgery, particularly those involving simultaneous tumor resection and implant placement, achieving functional recovery, tissue repair, and reconstructive reconstruction of the post-tumor area remains a significant clinical challenge. While existing technologies can address tumor resection, bone reconstruction, and implant placement independently, these technologies still face limitations and challenges in practical application.

[0003] First, after tumor resection, the loss of soft and hard tissues in the maxillofacial area often leads to serious changes in the patient's facial appearance, which in turn affects their quality of life and functional recovery. Traditional technical means mainly rely on autologous bone transplantation to reconstruct the missing maxillofacial bone structure after tumor resection. However, when performing autologous bone transplantation, the traditional method mainly relies on the experience of maxillofacial surgeons to perform autologous bone transplantation, and bone transplantation reduction is difficult. Secondly, implant restoration is one of the common means to reconstruct the patient's function and appearance. Modern oral implant technology is relatively mature, but usually when oral implantation is performed in conjunction with maxillofacial surgery, due to the lack of effective coordination and positioning means, especially when performing autologous bone transplantation and reduction, it is often difficult to ensure the accurate positioning of the implant and the precise reduction of the autologous bone, which increases the complexity of the operation, prolongs the recovery time, and may also affect the recovery of postoperative function.

[0004] Traditional autologous bone transplantation relies heavily on the surgeon's experience to determine implant placement and autologous bone repositioning, which can lead to errors and makes it difficult to achieve ideal precision and stability. This not only increases surgical risk but can also compromise the ultimate outcome. Furthermore, staged tumor resection and implant placement often require multiple surgeries, placing a significant physical and psychological burden on the patient. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a digital guide plate and preparation method for oral tumor resection with simultaneous bone implantation, which can achieve effective integration and precise positioning during tumor resection, autologous bone transplantation and reduction, and implant placement during oral tumor resection with simultaneous bone implantation, thereby reducing the number of surgeries during oral tumor resection with simultaneous bone implantation, reducing surgical risks, and improving the effect of postoperative functional recovery.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] Digital guide plate for oral tumor resection and simultaneous bone implantation, including:

[0008] Tumor resection indicator guide, used to indicate the range of tumor resection;

[0009] Autologous bone osteotomy indicator guide, used to indicate the length, position and segmentation of autologous bone osteotomy;

[0010] Implantation guide, used to guide the implantation of autologous bone;

[0011] Implant reduction guide, which uses the position of the implant to assist in the reduction of the autologous bone;

[0012] The shape of the guide plate is consistent with the shape of the expected reduction bone block to hold the autologous bone.

[0013] Furthermore, the tumor resection indication guide plate includes a tumor resection indication guide plate main body fixed on the jaw bone and adapted to the tumor resection morphology. The tumor resection indication guide plate main body is provided with a retention hole A adapted to the retention bone screw and a titanium nail indication hole A adapted to the titanium nail. There are at least two tumor resection indication guide plate main bodies.

[0014] Furthermore, a connecting rod is connected between adjacent tumor resection indication guide plate bodies.

[0015] Furthermore, the autologous bone osteotomy indicator guide plate includes an autologous bone osteotomy indicator guide plate body adapted to the size of the target transplanted autologous bone segment and covering the target transplanted autologous bone segment, the autologous bone osteotomy indicator guide plate body having two autologous bone osteotomy indicator guide plate bodies, and an osteotomy connecting rod connected between the autologous bone osteotomy indicator guide plate bodies;

[0016] The main body of the autologous bone osteotomy indicator guide plate is provided with a retention hole B matched with the retention bone screw and a titanium nail indicator hole B matched with the titanium nail.

[0017] Furthermore, the implantation indicator guide includes an implantation indicator guide body that is adapted to the size of the target transplanted autologous bone segment and covers the target transplanted autologous bone segment. There are at least two implantation indicator guide bodies, and implantation connecting rods are connected between adjacent implantation indicator guide bodies.

[0018] Furthermore, the implant guide plate body is provided with an implant guide ring hole for guiding implantation, and an observation window A for observing the position of the implant guide plate and providing a water inlet for cooling water;

[0019] The implantation indicator guide plate body is provided with a retention hole C adapted to the retention bone screw and a titanium screw indication hole C adapted to the titanium screw.

[0020] Furthermore, the implant reduction guide includes a composite abutment, a temporary abutment, an implant reduction fixation plate installed in the patient's mouth, and an implant reduction hole plate provided on the implant reduction fixation plate for assisting in the reduction of the target transplanted autologous bone; the composite abutment is provided on the implant, the temporary abutment is provided on the composite abutment, and the implant reduction hole plate is provided with a reduction hole that is compatible with the temporary abutment.

[0021] Furthermore, an observation window B is provided on the implant repositioning and fixing plate, and the implant repositioning and fixing plate is mounted on the dental arch of the remaining teeth in the patient's oral cavity, or fixed on the patient's jawbone.

[0022] Furthermore, the autologous bone reduction guide includes an autologous bone reduction guide body that is adapted to the target transplanted autologous bone and is used to hold the target transplanted autologous bone. A retention hole D is provided on the autologous bone reduction guide body, and the autologous bone reduction guide body is fixed to the patient's jaw through a retention bone screw adapted to the retention hole D.

[0023] The method for preparing a digital guide plate for oral tumor resection with simultaneous bone implantation comprises the following steps:

[0024] Step 1: Use 3D software to construct the patient's jaw, autologous bone, tumor, and dentition models based on the patient's information;

[0025] Step 2: Determine the extent of tumor resection based on the nature, location, size, and extent of the tumor;

[0026] Step 3: Refer to the existing dental arch contour and tumor resection range to perform virtual tooth arrangement design and determine the implant site based on the tooth arrangement information;

[0027] Step 4: Determine the position and range of the reconstruction titanium plate based on the implant site. The reconstruction titanium plate must accurately connect the normal jaw tissue and the target transplanted autologous bone;

[0028] Step 5: Determine the three-dimensional data information of the tumor resection guide, the autologous bone osteotomy guide, the implant guide, the implant reduction guide, the autologous bone reduction guide, and the ideal bone augmentation model in a three-dimensional software based on the above information, then export the three-dimensional data information in STL format and input it into a 3D printer to print the tumor resection guide, the autologous bone osteotomy guide, the implant guide, the implant reduction guide, the autologous bone reduction guide, and the ideal bone augmentation model;

[0029] Step 6. Use the implant indicator guide to fully implant the implant in the ideal bone augmentation model. Install the composite abutment and temporary abutment on the ideal bone augmentation model and insert the temporary abutment into the implant reduction guide. Fix the temporary abutment and implant reduction guide with resin and release the connection between the composite abutment and temporary abutment.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention features a simple structure, scientifically designed, and easy-to-use technology. During oral tumor resection with simultaneous bone implantation, the digital guide of the present invention, guided by a restoration-oriented concept, enables tumor resection, autologous bone resection, autologous bone reduction, and precise implant placement during the same surgical procedure. By guiding implant placement with the digital guide and using the implant's position as a reference, autologous bone reduction can be precisely guided, significantly improving the accuracy of autologous bone implantation and reducing operational errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of the virtual patient head model constructed by the present invention.

[0033] Figure 2 Schematic diagram of the patient's autologous bone model constructed in the present invention.

[0034] Figure 3 Schematic diagram of the tumor model and tumor resection range on the jaw model of the present invention.

[0035] Figure 4 Schematic diagram of the tumor resection range after tumor resection on the jaw model of the present invention.

[0036] Figure 5 Schematic diagram of the autologous bone segment (target transplanted autologous bone segment) on the autologous bone model of the present invention.

[0037] Figure 6 This is a diagram of the virtual tooth arrangement of the present invention Figure 1 .

[0038] Figure 7 This is a diagram of the virtual tooth arrangement of the present invention Figure 2 .

[0039] Figure 8 This is a schematic diagram of the virtual tooth arrangement within the tumor resection range on the jaw model of the present invention.

[0040] Figure 9 Schematic diagram of the virtual tooth arrangement and reconstruction titanium plate located within the tumor resection range on the jaw model of the present invention.

[0041] Figure 10 Schematic diagram of the tumor resection guide plate of the present invention Figure 1 (Segmented Tumor Resection Indicator Guide).

[0042] Figure 11 Schematic diagram of the tumor resection guide plate of the present invention Figure 2 (Segmented Tumor Resection Indicator Guide).

[0043] Figure 12 Schematic diagram of the tumor resection guide plate of the present invention Figure 3 (One-piece tumor resection indicator guide).

[0044] Figure 13 Schematic diagram of the autologous bone osteotomy guide of the present invention.

[0045] Figure 14 This is a schematic diagram of the main body of the autologous bone osteotomy indicator guide of the present invention.

[0046] Figure 15 This is a corresponding diagram of the mandibular reconstruction titanium plate and one of the segmented tumor resection indicator guides of the present invention.

[0047] Figure 16 These are corresponding diagrams of the mandibular reconstruction titanium plate of the present invention, the autologous bone osteotomy indicator guide plate, and another segmented tumor resection indicator guide plate.

[0048] Figure 17 This is a schematic diagram of the main body of the planting indication guide of the present invention.

[0049] Figure 18 Schematic diagram of the maxillary implant reduction guide of the present invention.

[0050] Figure 19 This is a schematic diagram of the implant reduction guide of the present invention.

[0051] Figure 20 This is a schematic diagram of the main body of the mandibular autologous bone reduction guide plate of the present invention.

[0052] Figure 21 Schematic diagram of the implantation guide plate on the ideal bone augmentation model of the present invention.

[0053] Figure 22 Schematic diagram of the implantation guide and implantation reduction guide on the ideal bone augmentation model of the present invention Figure 1 .

[0054] Figure 23 Schematic diagram of the implantation guide and implantation reduction guide on the ideal bone augmentation model of the present invention Figure 2 .

[0055] Figure 24 Schematic diagram of the temporary base of the present invention.

[0056] Figure 25 Schematic diagram of the composite base of the present invention.

[0057] The names corresponding to the reference numerals are:

[0058] 1-Tumor resection indicator guide, 2-Autologous bone osteotomy indicator guide, 3-Implantation indicator guide, 4-Implantation reduction guide, 5-Autologous bone reduction guide, 6-Jaw, 7-Tumor resection indicator guide body, 9-Connecting rod, 10-Retention hole A, 11-Titanium nail indicator hole A, 12-Autologous bone osteotomy indicator guide body, 14-Osteotomy connecting rod, 15-Retention hole B, 16-Titanium nail indicator hole B, 17-Implantation indicator guide body, 18-Implantation connecting rod, 19-Implantation guide ring hole, 20-Observation window A, 21-Retention window Position hole C, 22-titanium nail indicator hole C, 23-implant reduction fixation plate, 24-implant reduction hole plate, 25-temporary abutment, 26-composite abutment, 27-observation window B, 28-autogenous bone reduction guide body, 29-retention hole D, 30-reduction hole, 31-reconstruction titanium plate, 32-jaw model, 33-tumor model, 34-dentition model, 35-reference line, 36-autogenous bone model, 37-mandibular nerve canal, 38-tumor resection range, 39-autogenous bone segment, 40-virtual tooth arrangement, 41-ideal bone augmentation model. DETAILED DESCRIPTION

[0059] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0060] Example 1.

[0061] like Figure 1-Figure 25 As shown, the digital guide plate for oral tumor resection and simultaneous bone implantation provided by the present invention comprises:

[0062] The tumor resection indication guide 1 is used to indicate the tumor resection range 38 .

[0063] The tumor resection indicator guide plate 1 includes a main body 7 fixed to the jawbone 6 and adapted to the tumor resection configuration. The main body 7 is provided with a retention hole A10 adapted for a bone screw and a titanium nail indicator hole A11 adapted for a titanium nail. The main body 7 comprises at least two main bodies 7. Connecting rods 9 connect adjacent main bodies 7.

[0064] The tumor resection guide plate 1 has a retention hole A10 on it to indicate the insertion of the retention bone screw to assist the retention of the guide plate. At the same time, there is a titanium screw indication hole A11 on it to indicate the position of the titanium screw on the future fixation reconstruction titanium plate 31. The tumor resection guide plate can be connected or divided into sections, and can be adjusted according to the usage habits of different doctors. Figure 12As shown, this is a one-piece tumor resection indicator guide 1, as shown in Figure 10 and 11 Shown is a segmented tumor resection indicator guide 1.

[0065] The autologous bone osteotomy indication guide plate 2 is used to indicate the length, position and segmentation of the autologous bone osteotomy.

[0066] The autologous bone osteotomy indicator guide 2 includes an autologous bone osteotomy indicator guide body 12 that is adapted to the size of the target transplanted autologous bone segment and covers the target transplanted autologous bone segment. There are two autologous bone osteotomy indicator guide bodies 12, and an osteotomy connecting rod 14 is connected between the autologous bone osteotomy indicator guide bodies 12; the autologous bone osteotomy indicator guide body 12 is provided with a retention hole B15 adapted to the retention bone screw, and a titanium nail indication hole B16 adapted to the titanium nail.

[0067] The autologous bone osteotomy guide plate 2 has retention holes B15 to assist in guide plate retention. These holes coincide with retention holes C21 on the implant guide plate 3 and serve as a reference for repositioning the implant guide plate 3. Similar to the tumor resection guide plate, it also has titanium nail indicator holes B16 to indicate the location of the titanium nails for future fixation of the reconstruction titanium plate 31. These holes also serve as retention holes during the osteotomy phase to assist in guide plate fixation.

[0068] The implantation indicator guide 3 is used to guide the implantation of autologous bone.

[0069] The implantation indicator guide 3 includes an implantation indicator guide body 17 that is adapted to the size of the target transplanted autologous bone segment and covers the target transplanted autologous bone segment. There are at least two implantation indicator guide bodies 17, and implantation connecting rods 18 are connected between adjacent implantation indicator guide bodies 17.

[0070] The implantation guide plate body 17 is provided with an implantation guide ring hole 19 for guiding the implantation, and an observation window A20 for observing the position of the implantation guide plate and providing a water inlet for cooling water;

[0071] The implantation indicator guide body 17 is provided with a retention hole C21 adapted to the retention bone screw and a titanium screw indication hole C22 adapted to the titanium screw.

[0072] The implant indicator guide 3 is used to guide the implantation of the implant throughout the entire process on the autologous bone. It is a bone-supported structure with a retention hole C21 on it, which matches the retention hole B15 on the autologous bone osteotomy guide to assist in the retention of the guide. There is a titanium nail indicator hole C22 to indicate the position of the titanium nail on the future fixed reconstruction titanium plate 31. It can also be used as a retention hole during the implantation stage to assist in the fixation of the guide. It is consistent with the position of the titanium nail indicator hole B16 on the autologous bone osteotomy indicator guide 2. There is an implant guide ring hole 19 on the guide to guide the implantation. The position and size design of the implant guide ring hole 19 are related to the implant system used. The appropriate compensation height and diameter size are selected according to the corresponding implant system. There is an observation window A20 on the guide to assist in observing the position of the guide. It also serves as a cooling hole to provide a channel for the injection of cooling water during the drilling process to avoid overheating during the implantation process, avoid bone burns, and affect the implantation effect.

[0073] The implant reduction guide 4 utilizes the position of the implant to assist in the reduction of the autologous bone.

[0074] The implant reduction guide 4 includes a composite abutment 26, a temporary abutment 25, an implant reduction plate 23 installed in the patient's mouth, and an implant reduction hole plate 24 provided on the implant reduction plate 23 to assist in the reduction of the target transplanted autologous bone. The composite abutment 26 is provided on the implant, the temporary abutment 25 is provided on the composite abutment 26, and the implant reduction hole plate 24 is provided with a reduction hole 30 that is compatible with the temporary abutment 25. The implant reduction plate 23 is provided with an observation window B27. The implant reduction plate 23 is installed on the remaining dental arch of the patient's mouth or fixed to the patient's jaw 6.

[0075] The implant reduction guide 4 is used to assist the reduction of the autologous bone by using the position of the implant. If the patient has remaining teeth, the tooth support retention method is adopted. If the patient has no remaining teeth, the bone support retention method is adopted. Figure 19The tooth-supported retention method is shown, and the structure of the bone-supported retention method is similar to that of the tooth-supported retention method. The implant reduction guide 4 has an observation window B27 to determine the position of the guide, and at the same time has a reduction hole 30 for the temporary abutment to pass through. The purpose is to put the composite abutment and the temporary abutment in place after the implant of the model surgery (the composite abutment and the temporary abutment are connected by screws). The temporary abutment can pass through the reduction hole 30 and be surrounded by resin material to lock the position of the temporary abutment, so that in the subsequent actual operation process, the transplant position of the autologous bone can be determined by connecting the implant on the autologous bone with the temporary abutment on the reduction guide, and the autologous bone can be reset according to the implant information. The design of the reduction hole diameter is related to the diameter of the temporary abutment, and its radius is at least 1mm larger than the radius of the temporary abutment, reserving a relative tolerance space to ensure that the temporary abutment can pass through the reduction hole, and at the same time there is space to inject resin material for fixation. The height of the reduction hole should refer to the gingival height of the selected composite abutment and the height of the temporary abutment, to avoid it being too low so that the resin will be injected into the connection between the composite abutment and the temporary abutment, affecting the subsequent connection between the abutments; to avoid it being too high so that the reduction hole is higher than the height of the temporary abutment and cannot play the fixed positioning function. The height of the reduction hole is preferably 4-5mm, where the distance from the lower edge of the reduction hole to the implant platform = the gingival height of the composite abutment + 3-4mm buffer observation space. The upper edge of the reduction hole needs to ensure that the temporary abutment is at least 3mm higher than the upper edge of the reduction hole, so that the guiding effect of the reduction hole is more ideal.

[0076] The autologous bone reduction guide plate 5 has a shape consistent with the shape of the expected reduction bone block so as to hold the autologous bone.

[0077] The autologous bone reduction guide 5 includes an autologous bone reduction guide body 28 that is adapted to the target transplanted autologous bone and is used to hold the target transplanted autologous bone. A retention hole D29 is provided on the autologous bone reduction guide body 28. The autologous bone reduction guide body 28 is fixed to the patient's jaw 6 through a retention bone screw adapted to the retention hole D29.

[0078] In conventional single-layer autogenous bone transplantation, an implant reduction guide can be used to guide the reduction of the autogenous bone. However, for multi-layer autogenous bone transplantation, an autogenous bone reduction guide is often designed and manufactured to assist in the reduction of the underlying autogenous bone. For both single-layer and multi-layer autogenous bone reduction, an autogenous bone reduction guide can be used as an auxiliary alternative to confirm the correct reduction of the implant reduction guide. The autogenous bone reduction guide has retention holes D29, which align with retention holes A10 on the tumor resection indicator guide 1 to assist in positioning the guide. The guide's shape aligns with the shape of the intended reduction bone fragment to enclose the target autogenous bone for transplantation.

[0079] Example 2.

[0080] like Figure 1-Figure 25As shown, the method for preparing a digital guide plate for oral tumor resection with simultaneous bone implantation provided by the present invention comprises the following steps:

[0081] Step 1: Use 3D software to construct the patient's jaw, autologous bone, tumor, and dentition models based on the patient's information.

[0082] Model construction: A virtual patient is constructed based on the patient information, including intraoral information, imaging information, and facial information. The patient's jaw model 32, autologous bone model 36, tumor model 33, and dentition model 34 are constructed. Reference lines 35 for the facial midline, orbitoauricular plane, and planes are drawn on the virtual patient, and the mandibular nerve canal 37 is drawn.

[0083] Step 2: Determine the extent of tumor resection based on the nature, location, size, and extent of the tumor.

[0084] Determine the extent of tumor resection: The extent of tumor resection is determined based on the nature, location, size, and extent of the tumor. If the tumor is invasive, a resection margin of at least 0.5 cm outside the lesion should be designed. The extent of autologous bone segment 39 will also be determined based on the extent of tumor resection, along with the planning of the arteriovenous and autologous segment placement.

[0085] Step 3: Design a virtual tooth arrangement 40 with reference to the existing dental arch contour and tumor resection range, and determine the implant site based on the tooth arrangement information.

[0086] Oral implant planning: Virtual tooth arrangement design is performed based on the existing dental arch contour and tumor resection extent, guided by restoration. Implant sites are planned based on this information, and the appropriate implant system and model are selected. Bicortical retention is preferred, with the restorative space equally divided. For crown or bridge restorations, implants are placed as parallel as possible.

[0087] Step 4: Determine the position and range of the reconstruction titanium plate based on the implant site. The reconstruction titanium plate must accurately connect the normal jaw tissue and autologous bone.

[0088] Determine the position and extent of the reconstruction titanium plate: The reconstruction titanium plate must connect to the normal jaw tissue and the target autologous bone graft. The reconstruction titanium plate should not be too close to the crown to avoid affecting subsequent soft tissue surgery. Design the position of the titanium screw fixation channel on the reconstruction titanium plate to facilitate subsequent reconstruction titanium plate fixation.

[0089] Step 5. Determine the three-dimensional data information of the tumor resection guide, autologous bone osteotomy guide, implant guide, implant reduction guide, autologous bone reduction guide, and ideal bone augmentation model in the three-dimensional software based on the above information, then export the three-dimensional data information in STL format and input it into the 3D printer to print out the tumor resection guide, autologous bone osteotomy guide, implant guide, implant reduction guide, autologous bone reduction guide, and ideal bone augmentation model 41.

[0090] Step 6: Use the implantation guide to fully implant the implant in the ideal bone augmentation model 41. Install the composite abutment and temporary abutment on the model after implantation and insert the temporary abutment into the implantation reduction guide. Fix the temporary abutment and implantation reduction guide with resin and release the connection between the composite abutment and temporary abutment.

[0091] Model surgical practice: Before the formal operation on the patient, a model surgical practice is required to transfer the position of the temporary abutment in advance to facilitate the subsequent reduction of the formal operation. In the model surgical practice, the ideal bone augmentation model 41 is used, and the implant indicator guide is used in the ideal bone augmentation model 41 to perform the full implantation of the implant. The composite abutment and temporary abutment are installed on the ideal bone augmentation model, and the implant reduction guide is used to confirm whether the temporary abutment has passed through the reduction hole of the guide, and then the temporary abutment and reduction guide are fixed with resin material. The implant reduction guide connected to the temporary abutment is sterilized to facilitate the use of the formal operation. The subsequent formal operation can directly use the tooth support / bone support structure of the implant reduction guide to reduce it to the jaw position, and use the connection between the temporary abutment and the target transplanted autologous bone to reduce the position of the autologous bone to the ideal position, so as to achieve "repair-oriented" tumor resection with simultaneous implantation.

[0092] The application of the digital guide in this invention enables precise manipulation of tumor resection, autologous bone resection and reduction, and implant placement. The digital guide provides visual guidance during surgery, allowing the surgeon to precisely control implant placement and autologous bone reduction, significantly improving surgical accuracy and safety.

[0093] The present invention uses restoration-oriented implant placement to formulate a personalized implant placement plan based on the bone defect and soft tissue status of the area after tumor resection and virtual tooth arrangement 40. Based on this, the digital guide is used to guide the precise implant placement position of the implant to ensure functional restoration and appearance reconstruction.

[0094] The present invention accurately positions the autologous bone for reduction, uses a digital guide to refer to the implantation position of the implant, and uses the temporary abutment position picked up in the preoperative model surgery to subsequently connect the composite abutment and the implant to guide the reduction of the autologous bone, ensuring the stability and accuracy after the autologous bone transplant. This can effectively avoid reduction errors in traditional surgery and avoid increasing the difficulty of repair.

[0095] The present invention can realize the simultaneous performance of multi-step surgeries. By using a digital guide, steps such as tumor resection, autologous bone resection and reduction, and implant placement can be integrated into the same operation. This can not only effectively reduce the number of surgeries, but also effectively reduce the surgical risks of patients, effectively shorten the postoperative recovery time, and improve the overall treatment effect.

[0096] The digital guide plate for oral tumor resection with simultaneous bone implantation of the present invention is used in surgery. First, the tumor resection indication guide is used to remove the bone block in the patient's lesion area. Then, the autologous bone osteotomy indication guide is used to obtain the ideal autologous bone block. Then, the implant indication guide is used to complete the implantation of the implant on the autologous bone block. Then, the implant reduction guide connected to the temporary abutment in the model surgery is matched with the autologous bone block connected to the composite abutment. Finally, the autologous bone block is restored in the patient's mouth through the implant reduction guide using a tooth-supported / bone-supported structure or a bone-supported structure. At the same time, the autologous bone reduction guide can be selectively used to assist in retention according to the situation.

[0097] Finally, it should be noted that the above embodiments are merely preferred embodiments of the present invention and are intended to illustrate the technical solutions of the present invention, but are not intended to limit the scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, any changes or modifications that are insignificant to the main design concept and spirit of the present invention, provided that the technical problems they solve are consistent with the present invention, shall be included within the scope of protection of the present invention. Furthermore, any direct or indirect application of the technical solutions of the present invention to other related technical fields shall also be included within the scope of protection of the present invention.

Claims

1. A digital guide plate for oral tumor resection with simultaneous bone implantation, characterized by: include: A tumor resection indication guide (1), used for indicating the range of tumor resection; Autologous bone osteotomy indicator guide (2), used to indicate the length, position and segmentation of autologous bone osteotomy; An implantation guide plate (3) for guiding the implantation of autologous bone; An implant reduction guide (4) utilizes the position of the implant to assist in the reduction of the autologous bone; The guide plate (5) for autologous bone reduction is consistent with the shape of the expected reduction bone block so as to hold the autologous bone.

2. The digital guide plate for oral tumor resection with simultaneous bone implantation according to claim 1, characterized in that: The tumor resection indicating guide plate (1) comprises a tumor resection indicating guide plate main body (7) fixed on the jaw (6) and adapted to the tumor resection morphology. The tumor resection indicating guide plate main body (7) is provided with a retention hole A (10) adapted to the retention bone screw and a titanium nail indicating hole A (11) adapted to the titanium nail. The tumor resection indicating guide plate main body (7) comprises at least two pieces.

3. The digital guide plate for oral tumor resection with simultaneous bone implantation according to claim 2, characterized in that: A connecting rod (9) is connected between adjacent tumor resection indication guide plate bodies (7).

4. The digital guide plate for oral tumor resection with simultaneous bone implantation according to claim 1, characterized in that: The autologous bone osteotomy indicator guide plate (2) comprises an autologous bone osteotomy indicator guide plate body (12) adapted to the size of the target transplanted autologous bone segment and covering the target transplanted autologous bone segment, the autologous bone osteotomy indicator guide plate bodies (12) are provided with two, and an osteotomy connecting rod (14) is connected between the autologous bone osteotomy indicator guide plate bodies (12); The autogenous bone osteotomy indicator guide plate body (12) is provided with a fixing hole B (15) adapted to the fixing bone screw and a titanium screw indicator hole B (16) adapted to the titanium screw.

5. The digital guide plate for oral tumor resection with simultaneous bone implantation according to claim 1, characterized in that: The implantation indicator guide plate (3) comprises an implantation indicator guide plate body (17) adapted to the size of the target transplanted autologous bone segment and covering the target transplanted autologous bone segment, and there are at least two implantation indicator guide plate bodies (17), and implantation connecting rods (18) are connected between adjacent implantation indicator guide plate bodies (17).

6. The digital guide plate for oral tumor resection with simultaneous bone implantation according to claim 5, characterized in that: The implantation guide plate body (17) is provided with an implantation guide ring hole (19) for guiding implantation, and an observation window A (20) for observing the position of the implantation guide plate and for providing a water inlet for cooling water. The implantation indicator guide plate body (17) is provided with a fixing hole C (21) adapted to the fixing bone screw and a titanium screw indicating hole C (22) adapted to the titanium screw.

7. The digital guide plate for oral tumor resection with simultaneous bone implantation according to claim 1, characterized in that: The implant reduction guide (4) comprises a composite base (26), a temporary base (25), an implant reduction fixing plate (23) installed in the patient's mouth, and an implant reduction hole plate (24) provided on the implant reduction fixing plate (23) for assisting the reduction of the target transplanted autologous bone; the composite base (26) is provided on the implant, the temporary base (25) is provided on the composite base (26), and the implant reduction hole plate (24) is provided with a reduction hole (30) adapted to the temporary base (25).

8. The digital guide plate for oral tumor resection with simultaneous bone implantation according to claim 7, characterized in that: An observation window B (27) is provided on the implant repositioning and fixing plate (23), and the implant repositioning and fixing plate (23) is installed on the dental arch of the remaining teeth in the patient's oral cavity, or fixed on the patient's jaw (6).

9. The digital guide plate for oral tumor resection with simultaneous bone implantation according to claim 1, characterized in that: The autologous bone reduction guide plate (5) includes an autologous bone reduction guide plate body (28) adapted to the target transplanted autologous bone and used to hold the target transplanted autologous bone. A retention hole D (29) is provided on the autologous bone reduction guide plate body (28). The autologous bone reduction guide plate body (28) is fixed to the patient's jaw (6) through a retention bone screw adapted to the retention hole D (29).

10. The method for preparing a digital guide plate for oral tumor resection with simultaneous bone implantation according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Use 3D software to construct the patient's jaw, autologous bone, tumor, and dentition models based on the patient's information; Step 2: Determine the extent of tumor resection based on the nature, location, size, and extent of the tumor; Step 3: Refer to the existing dental arch contour and tumor resection range to perform virtual tooth arrangement design and determine the implant site based on the tooth arrangement information; Step 4: Determine the position and range of the reconstruction titanium plate based on the implant site. The reconstruction titanium plate must accurately connect the normal jaw tissue and the target transplanted autologous bone; Step 5: Determine the three-dimensional data information of the tumor resection guide, the autologous bone osteotomy guide, the implant guide, the implant reduction guide, the autologous bone reduction guide, and the ideal bone augmentation model in a three-dimensional software based on the above information, then export the three-dimensional data information in STL format and input it into a 3D printer to print the tumor resection guide, the autologous bone osteotomy guide, the implant guide, the implant reduction guide, the autologous bone reduction guide, and the ideal bone augmentation model; Step 6. Use the implant indicator guide to fully implant the implant in the ideal bone augmentation model. Install the composite abutment and temporary abutment on the ideal bone augmentation model and insert the temporary abutment into the implant reduction guide. Fix the temporary abutment and implant reduction guide with resin and release the connection between the composite abutment and temporary abutment.

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