A strip-shaped full-mouth implant and a manufacturing method thereof

Abstract

The present invention discloses a band-shaped full-mouth implant and a manufacturing method thereof, and the technical scheme thereof mainly includes the following steps: A1: obtaining a medical image of the jaw, performing an image scan on the jaw of the patient, obtaining the original image data of the jaw of the patient after the scanning, and selecting the jaw data without obvious damage as the control data; A2: image data processing, importing the original image data and the control data into the image processing software for data processing, and reconstructing the three-dimensional model data of the jaw of the patient according to the processing result; A3: implant printing, inputting the acquired three-dimensional model data into a 3D printing device, and printing out the corresponding implant and guide plate. The present invention designs the implant into a band-shaped shape, so that only a very thin layer of bone needs to be removed to bury it in the alveolar bone, and there is enough bone binding area after bone binding is achieved, the operation is less traumatic, easy to carry out, and the operation time and cost are reduced.

Description

Technical Field

[0001] The present invention relates to the field of oral implants, and in particular to a strip-shaped full-mouth implant and a manufacturing method thereof. Background Art

[0002] There are many edentulous people in my country, and full-mouth removable dentures are not comfortable and easily accelerate alveolar bone resorption. The emergence of implant dentures has solved the needs of many edentulous patients, but the severe bone resorption in the posterior teeth area of ​​edentulous patients has brought huge challenges to implant restoration.

[0003] Currently, the main approaches to addressing insufficient bone stock are: 1. Angled implant placement in the maxillary sinus and mental foramen areas; 2. Transzygomatic implant placement and transpterygoid implant placement in the maxillary tuberosity area; and 3. Short implant placement. These approaches address some clinical challenges, but others remain unresolved. Angled implant placement is clinically challenging and requires high precision in the secondary restoration. The use of composite guides increases mechanical complications; transzygomatic implant placement is surgically invasive and carries the risk of eye damage, while transpterygoid implant placement carries the risk of arterial damage. Short implants concentrate stress, reduce the osseointegration area, and increase the failure rate. All of these implant methods rely on a monolithic bridge to distribute occlusal forces. The bridge and implant are connected by a composite guide, which occupies a significant amount of vertical space in the mouth. During surgery, the surgeon must assess the patient's vertical distance and smile line to determine whether osteotomy is necessary, increasing surgical trauma. Difficulty cleaning between the prosthesis base and the gingiva is another persistent issue for both doctors and patients. Micromotion between the implant and guide can easily lead to marginal bone resorption and food impaction between the prosthesis and the gingiva.

[0004] In the prior art, the patent document with application number: CN202110712644.3 discloses a method for the joint design of bone augmentation and implant dentures and a method for manufacturing a bone augmentation model. In the joint design method of bone augmentation and implant dentures of the present invention, the hard tissue model and the oral model do not need to be fused. It is only necessary to align and overlap the medical image, hard tissue model and oral model, so that the restoration and implant can be designed on the oral model respectively, and the bone augmentation can be designed on the hard tissue model. Not only is the data operation simpler, but the restoration and implant designed based on the original oral model are more accurate than the fused data. In addition, during the design, the original medical image that can fully display the soft and hard tissues of the oral cavity and jaw is used as a reference to adjust the restoration, implant and bone augmentation.

[0005] Bone augmentation surgery is technically difficult, invasive, and has a low success rate. The main reason for this is that the tapered structure of the implant requires sufficient width and height to provide sufficient bone integration area to withstand occlusal forces. Current implants are all conical, similar to tooth roots, and the area is increased by threads on the surface of the root structure. This structure often requires the alveolar bone height to be greater than 6 mm and the width to be greater than 5 mm. However, elderly people have been missing teeth for a long time, and the alveolar bone has atrophied, resulting in insufficient bone height and width, and complex surgery is often required for bone augmentation. In areas where the posterior alveolar bone is insufficient, increasing the front implant length to 13 to 18 mm adds additional trauma, a risk of fracture, and severe postoperative reactions. Slanted implants are also a common solution for insufficient bone volume. However, this type of implant, which is inconsistent with the direction of the occlusal force, can easily cause alveolar bone absorption, and the implant is also prone to mechanical complications such as fracture due to lateral force. Full-mouth implants usually require 10 to 12 implants, which is expensive. The upper crown is connected by an internal hexagon, which is prone to mechanical complications such as fracture. The process of taking molds to make dentures is complicated. If the model is slightly deformed, the denture often cannot be worn. The production precision is high, and the implants are often implanted in partitions with intervals of 3-6 mm. The alveolar bone in the non-implant area will accelerate atrophy due to the lack of occlusal force. Due to anatomical conditions, there are exposed screw holes, which affects the appearance.

[0006] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Summary of the Invention

[0007] The purpose of the present invention is to provide a strip-shaped full-mouth implant and a manufacturing method thereof, so as to solve the problems existing in the existing tapered implants.

[0008] The above technical objectives of the present invention are achieved by the following technical solutions: A method for manufacturing a strip-shaped full-mouth implant comprises the following steps: A1: Obtain a medical image of the jaw and scan the patient's jaw. After the scan is completed, the original image data of the patient's jaw is obtained, and the jaw data without obvious damage is selected as the control data; A2: Image data processing: importing the original image data and control data into image processing software for data processing, and reconstructing the patient's jaw 3D model data based on the processing results; A3: Implant printing: input the acquired 3D model data into the 3D printing device to print out the corresponding implant and guide.

[0009] Acquiring jaw image data in step A1 includes the following steps: B1: jaw scanning, using a CBCT scanner to scan the jaws of the patient and a normal person to obtain original image data and control data respectively; B2: Data output: export the scanned image data in DICOM format for subsequent processing.

[0010] The image data processing in step A2 includes the following steps: C1: Image segmentation: Input the original image data and control data into the data processing software Mimics, set the grayscale value range of the jaw, separate the jaw from other tissues, and then segment the jaw area to obtain the jaw mask; C2: 3D reconstruction. After the segmentation is completed, the 3D model of the jaw is generated through the 3D reconstruction function of Mimics, and the 3D model is converted into STL format and exported.

[0011] Implant printing in step A3 includes the following steps: D1: Import the pre-processed 3D model data into the 3D printing equipment and set the parameters. After printing, clean it and perform surface acid etching and sandblasting to improve the implant bone integration ability.

[0012] A strip-shaped full-mouth implant, comprising: The guide plate has an installation space and is a horseshoe-shaped plate structure, which is convenient for adapting to other structures in the oral cavity; Implant, the implant is set on the guide plate. After the implant is accurately implanted into the alveolar bone, the bone tissue will gradually form a close bone bond with the threaded implant; An artificial crown is provided with a connecting portion on the first end of the artificial crown, and multiple artificial crowns are arranged on the guide plate in cooperation with the base through the connecting portion, and the second end of the artificial crown is extended to the outside of the guide plate.

[0013] The present invention is further configured such that the guide plate is a component made of resin and is formed by 3D printing.

[0014] The present invention is further configured as follows: the implant is a component made of a titanium tube, and the diameter of the implant is 1-5 mm.

[0015] The present invention is further configured such that the surface of the implant portion is covered with a sandblasting acid etching coating.

[0016] In summary, compared with the prior art, the present invention has the following beneficial effects: 1. Simplify the surgical process and save time: The implant is designed in a strip shape, so only a very thin layer of bone needs to be removed to embed it in the alveolar bone. After osseointegration, there is enough bone integration area. The operation is minimally invasive and easy to perform. It can also be implanted in various low-lying alveolar bones. In terms of design, CBCT can be used to design different sizes of strip implants according to the amount of bone in various areas of the mouth. There is no need to open multiple holes in the alveolar bone. Only 2-3 mm of cortical bone needs to be removed to embed the strip implant, which reduces the operation time and cost. 2. Wide range of applicable populations: Even if the alveolar bone height is only 3 mm, implants can be performed. It is suitable for severe patients with complete mouth loss and elderly patients; 3. Reduce trauma and postoperative reactions: Since only a 2-3 mm cavity is prepared, the trauma and flap are small, and the postoperative reaction is also reduced accordingly. The strip implants are evenly distributed on the alveolar ridge top, so that the alveolar bone is subjected to uniform vertical force, reducing alveolar bone absorption. The strip implants are personalized according to each person's alveolar bone morphology through CBCT, and the guide plate is integrally cast on the strip implant to reduce the risk of mechanical complications. 4. Avoid damage to important structures: The surgery will not be affected by important structures such as the maxillary sinus and inferior alveolar nerve, thereby improving surgical safety; there are no exposed screw holes after implantation, thereby improving aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic flow diagram of the present invention. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to diagrams and specific embodiments.

[0020] like Figure 2 As shown, the present invention proposes a method for manufacturing a strip-shaped full-mouth implant, comprising the following steps: A1: Obtain a medical image of the jaw and scan the patient's jaw. After the scan is completed, the original image data of the patient's jaw is obtained, and the jaw data without obvious damage is selected as the control data; A2: Image data processing: importing the original image data and control data into image processing software for data processing, and reconstructing the patient's jaw 3D model data based on the processing results; Based on the original image data and the control data, a 3D model of the patient's jaw is reconstructed to provide a reference model for the design of the implant. The shape and size of the implant are optimized through analysis of the 3D model. A3: Implant printing: input the acquired 3D model data into the 3D printing device to print out the corresponding implant and guide plate; Based on the patient's jaw 3D model data, implants and guides that perfectly match the patient's jaw can be printed, and precise implants and guides can be quickly produced through 3D printing.

[0021] In this embodiment, obtaining jaw image data in step A1 includes the following steps: B1: Jaw scan: Use CBCT scanner to scan the jaws of patients and normal subjects to obtain original image data and control data respectively; Compared with traditional CT, CBCT scanners have higher resolution, can clearly display the fine structure of the jaw, and can scan from multiple directions and angles, which can better complete the three-dimensional reconstruction of the jaw; B2: Data output, export the scanned image data in DICOM format for subsequent processing; When using the CBCT scanner, select the Export option to export the scanned image data to a designated storage medium in the DICOM format, a format widely used in various medical imaging devices. Exporting image data in the DICOM format ensures data compatibility and readability, allowing for easy import into image processing software for subsequent processing and analysis.

[0022] In this embodiment, the image data processing in step A2 includes the following steps: C1: Image segmentation: Input the original image data and control data into the data processing software Mimics, set the grayscale value range of the jaw, separate the jaw from other tissues, and then segment the jaw area to obtain the jaw mask; The purpose of image segmentation is to obtain an accurate representation of the jaw in the image to provide support for subsequent 3D model reconstruction. The segmented jaw mask is used for subsequent 3D reconstruction, measurement, and analysis. C2: 3D reconstruction. After the segmentation is completed, the 3D model of the jaw is generated through the 3D reconstruction function of Mimics, and the 3D model is converted into STL format and exported.

[0023] In this embodiment, the implant printing in step A3 includes the following steps: D1: Import the pre-processed three-dimensional model data into the 3D printing equipment and set the parameters. After printing is completed, it is cleaned and surface polished to improve surface smoothness, thereby reducing discomfort after implantation. The D1 step can provide patients with high-quality implants through precise printing, personalized customization and high surface smoothness processing, and help improve the success rate of implant surgery and patient comfort.

[0024] In summary, the function and usage principle of the production method of horseshoe-shaped banded full-mouth implants are as follows: Through CBCT scanning and high-precision image processing technology, the patient's jaw three-dimensional model can be accurately obtained, so as to design a horseshoe-shaped banded full-mouth implant that perfectly matches the patient's jaw. 3D printing technology ensures the production accuracy of implants and guides. Targeted implants can better adapt to the patient's jaw morphology. Guides are used to help doctors more accurately locate the position and direction of implants during surgery, reducing the risk of surgical complications. The shape and size of the implants have been optimized to better fit the patient's jaw, reducing discomfort after implantation. Surface polishing improves the smoothness of the implants and reduces the foreign body sensation and discomfort after implantation.

[0025] like Figure 1 As shown, a strip-shaped full-mouth implant includes a guide plate 1 with an installation space thereon. The guide plate 1 is a horseshoe-shaped plate structure with multiple abutments 4 provided on the guide plate 1. The horseshoe-shaped plate structure is designed to facilitate adaptation to other structures in the oral cavity and to provide the guide plate 1 with a larger contact area in the oral cavity, thereby improving the stability and support of the implant 2. The multiple abutments 4 provided on the guide plate provide space for accurate installation of the artificial crown 3. The position and number of the abutments 4 in the figure are for ease of explanation only and should not be construed as limiting the present application. Implant 2 is set on the guide plate 1 and is integrally formed with the guide plate 1. Before the implant surgery, the dentist will perform local anesthesia, remove a layer of bone from the patient, and accurately implant the implant 2 into the alveolar bone to allow the implant 2 to be fully integrated with the alveolar bone. During the implantation process of implant 2, implant 2 can moderately squeeze the bone tissue. This squeezing effect helps stimulate the regeneration and proliferation of bone cells. The bone tissue will gradually form a close bone bond with the threaded implant part, thereby enhancing the stability of implant 2.

[0026] An artificial crown 3 is provided with a connecting portion on the first end of the artificial crown 3. Multiple artificial crowns 3 are arranged on the guide plate 1 in cooperation with the base 4 through the connecting portion. The second end of the artificial crown 3 is extended to the outside of the guide plate 1. The artificial crown 3 can restore the functionality of the patient's missing teeth so that the patient can chew food normally.

[0027] Preferably, the guide plate 1 is a component made of resin and formed by 3D printing. The guide plate 1 provides a support platform for the implant 2 and the artificial crown 3. The resin material is relatively light, which can reduce the patient's oral burden, improve comfort, and reduce rejection reactions. Preferably, the implant 2 is a hollow titanium tube with a diameter of 1-5 mm. The 3D-printed implant 2 can conform to the shape of the patient's remaining alveolar bone. In areas with sufficient bone, the diameter can be designed to be 4 or 5 mm, and in areas with insufficient bone, the diameter can be designed to be 1 mm or 2 mm. In extreme cases where the width is sufficient but the height is insufficient, the shape of the implant 2 can be changed to a flat plate or an arc shape. The hollow titanium tube reduces the overall weight and reduces the burden on patients while ensuring strength. Titanium has excellent biocompatibility and will not cause allergic or rejection reactions. The surface of implant 2 is covered with a sandblasting and acid etching coating. The sandblasting and acid etching treatment increases the roughness of the titanium sheet surface, which is conducive to the adhesion and proliferation of osteoblasts.

[0028] The function and use of a strip-shaped full-mouth implant are as follows: the implant and the guide are integrated into one, the operation is convenient and simple, the doctor's technical sensitivity is not high, the patient's residual bone volume is not high, and no screw retention is required, which reduces mechanical complications. It is especially suitable for oral restoration of elderly patients. The unique horseshoe-shaped plate structure of the ribbon-shaped full-mouth implant adapts well to the complex structures of the oral cavity, ensuring a close fit between the implant and the surrounding tissue. The ribbon-shaped full-mouth implant is primarily used to address the problem of full or partial tooth loss in patients. By implanting the implant and forming a close osseointegration with the alveolar bone, it provides stable support for the artificial crown, thereby restoring the patient's chewing function and oral aesthetics. The restoration of the artificial crown can significantly improve the patient's chewing efficiency, allowing them to enjoy food normally. Once the implant is successfully placed, its maintenance cost is relatively low, and it can provide patients with stable oral support for a long time.

[0029] Usage: A detailed oral examination and evaluation is performed, followed by local anesthesia. A layer of bone is removed from the patient to prepare for implant placement. The implant is then precisely placed in the alveolar bone, allowing it to fully integrate with the bone. The implant's threads moderately squeeze the bone tissue, stimulating the regeneration and proliferation of bone cells. After implant placement, a period of time is allowed for the implant to form a tight bone bond with the alveolar bone. In summary, with its unique advantages and beneficial effects, full-mouth band implants offer patients an effective solution for tooth loss, providing them with a denture that meets both aesthetic and partial chewing requirements.

[0030] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "left," "right," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances. As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0031] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for manufacturing a strip-shaped full-mouth implant, characterized in that: The following steps are involved: A1: Obtain a medical image of the jaw and scan the patient's jaw. After the scan is completed, the original image data of the patient's jaw is obtained, and the jaw data without obvious damage is selected as the control data; A2: Image data processing: importing the original image data and control data into the image processing software for data processing, and reconstructing the patient's jaw 3D model data based on the processing results; A3: Implant printing: input the acquired 3D model data into the 3D printing device to print out the corresponding implant and guide plate.

2. The method for manufacturing a strip-shaped full-mouth implant according to claim 1, characterized in that: The step A1 of acquiring jaw image data includes the following steps: B1: jaw scanning, using CBCT scanner to scan the jaws of patients and normal people, and obtain original image data and control data respectively; B2: Data output: export the scanned image data in DICOM format for subsequent processing.

3. The method for manufacturing a strip-shaped full-mouth implant according to claim 1, characterized in that: Image data processing in step A2 The following steps are involved: C1: Image segmentation: input the original image data and control data into the data processing software Mimics, set the gray value range of the jaw, separate the jaw from other tissues, and then segment the jaw area to obtain the jaw mask; C2: 3D reconstruction. After the segmentation is completed, the 3D model of the jaw is generated through the 3D reconstruction function of Mimics, and the 3D model is converted into STL format for export.

4. The method for manufacturing a strip-shaped full-mouth implant according to claim 1, characterized in that: The implant printing in step A3 includes the following steps: D1: Import the pre-processed 3D model data into the 3D printing equipment and set the parameters. After printing, clean it and perform surface acid etching and sandblasting to improve the bone bonding ability of the implant.

5. A strip-shaped full-mouth implant, manufactured according to the manufacturing method of a strip-shaped full-mouth implant according to any one of claims 1 to 4, characterized in that: include, The guide plate has a mounting space and is a horseshoe-shaped plate structure, which is convenient for adapting to other structures in the oral cavity; Implant, the implant is set on the guide plate. After the implant is accurately implanted into the alveolar bone, the bone tissue will gradually form a close bone bond with the threaded implant; An artificial crown, wherein a connecting portion is arranged on the first end of the artificial crown, a plurality of artificial crowns are arranged on the guide plate in cooperation with the base through the connecting portion, and a second end of the artificial crown is extended to the outside of the guide plate.

6. The strip-shaped full-mouth implant according to claim 5, characterized in that: The guide plate is a component made of resin and formed by 3D printing.

7. The strip-shaped full-mouth implant according to claim 5, characterized in that: The implant is a component made of a titanium tube, and the diameter of the implant is 1-5 mm.

8. The strip-shaped full-mouth implant according to claim 5, characterized in that: The surface of the implant is covered with a sandblasted acid-etched coating.

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