Micro-implant, micro-implant supporting type guide plate and matched use method of micro-implant and micro-implant supporting type guide plate

Abstract

The invention relates to the technical field of oral implantation, and discloses a micro-implant, a micro-implant support type guide plate and a matched use method, the micro-implant and the micro-implant support type guide plate are included, and the micro-implant and the micro-implant support type guide plate are matched for use. The method comprises the following steps: 1) preoperative preparation; 2) preliminary design; (3) implanting a micro implant; 4) manufacturing a guide plate; and 5) implanting the implant and taking out the micro implant. Compared with the prior art, the device has the advantages that the same precision as that of a tooth support type guide plate operation is realized in an edentulous jaw implantation operation, and the micro implant is used for replacing natural teeth to perform high-precision positioning on the position of a conventional implant, so that the problems that a traditional guide plate is complicated to manufacture and depends on manual judgment are solved; operation time is obviously shortened, steps are reduced, and efficiency is improved; the operation of opening the gingiva in a large area is avoided, and operation wounds and postoperative recovery time are reduced; the comfort level is improved; the dental implant is suitable for various edentulous jaw oral implant operations, especially implant operations in a complex oral environment, and has higher applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of oral implantology, and specifically refers to a micro-implant, a micro-implant supported guide plate and a method for their combined use. Background Art

[0002] In oral implant surgery, accurately positioning the implant is the key to ensuring the success of the surgery and the long-term stability of the implant. In the prior art, three types of guide plates are usually used: tooth-supported guide plates, mucosa-supported guide plates, and bone-supported guide plates. Among them, the bone-supported guide plate is no longer commonly used because of its large trauma and difficult operation. In clinical work, the tooth-supported guide plate is superior to the mucosa-supported guide plate.

[0003] The reasons are as follows:

[0004] 1. The mucosa has certain elasticity and mobility, resulting in deviation during impression taking.

[0005] 2. When the guide plate is inserted and fixed with retention pins, due to the deformation and movement of the oral mucosa, there is a deviation between the implant guiding position and the designed guiding position.

[0006] In edentulous implant surgery, only the mucosa-supported guide plate can be used because there are no teeth available. Therefore, the accuracy of implant placement in edentulous implant surgery is worse than that in tooth-supported guide plate implant surgery.

[0007] In view of the deficiencies in the prior art, the present invention proposes a micro-implant, a micro-implant supported guide plate and a method for their combined use, aiming to improve the positioning accuracy of the implant, simplify the surgical process, reduce surgical trauma, improve the comfort of patients, and ensure the accuracy of implant placement. Summary of the Invention

[0008] The object of the present invention is to solve the problems mentioned in the background art, and provide a micro-implant, a micro-implant supported guide plate and a method for their combined use.

[0009] To solve the above technical problems, the technical solution provided by the present invention is: a micro-implant and a micro-implant supported guide plate, including a micro-implant and a micro-implant supported guide plate;

[0010] The micro-implant includes a micro-implant root and a micro-implant crown. The micro-implant root is a threaded structure. The micro-implant crown is fixedly arranged on the top of the micro-implant root. The micro-implant crown is a hexahedron. The dimensions of the micro-implant crown increase sequentially from the occlusal surface to the root surface. The central part of the occlusal surface of the micro-implant crown is provided with a connecting groove with a wider outer width and a narrower inner width to facilitate the formation of an insertion path;

[0011] The micro-implant supported guide plate is U-shaped. The inner surface of the micro-implant supported guide plate is provided with grooves and protrusions that match the shape of the crown of the micro-implant. The grooves on the inner surface of the connecting guide plate are used in relative matching with the outer shape of the crown of the micro-implant, and the central protrusion of the groove on the inner surface of the guide plate is in the relative position with the groove in the center of the crown of the micro-implant for matching use.

[0012] A number of guide rings are provided on the micro-implant supported guide plate.

[0013] As a preferred solution, the number of the connecting grooves and protrusions is 3 to 4.

[0014] As a preferred solution, the root of the micro-implant is thinner and shorter than that of a conventional implant, and its length is selected according to the thickness of the patient's oral mucosa to ensure that after the micro-implant is implanted, the root is implanted 3 to 4 mm under the bone, and the root length is the mucosa thickness plus 3 to 4 mm.

[0015] A method for the combined use of a micro-implant and a micro-implant supported guide plate specifically includes the following steps:

[0016] 1) Preoperative preparation: The patient completes cone beam computed tomography (CBCT) scanning and preoperative examinations, and is confirmed to meet the conditions for implant surgery;

[0017] 2) Preliminary design: The normal implant sites in the patient's oral cavity are initially designed. On the premise of avoiding the normal implant sites, 3 - 4 micro-implant sites are designed, and according to the thickness of the patient's oral mucosa, a micro-implant with a suitable length model is selected;

[0018] 3) Micro-implant implantation: 3 to 4 micro-implants are respectively implanted at the alveolar ridge crest, and it is required to maintain the insertion path, with the position to replace the function of the natural tooth, for the subsequent production of the guide plate and the precise positioning of the implant;

[0019] 4) Guide plate production: CBCT is taken again, a mold is made, and a micro-implant supported guide plate is made. The guide plate is designed with a guiding structure that matches the implanted micro-implant;

[0020] 5) Implant implantation and micro-implant removal: The made guide plate is used to guide the precise implantation of the conventional implant. After confirming that the implantation position of the conventional implant is accurate, the previously implanted micro-implant is removed by reverse rotation.

[0021] As a preferred solution, the selection of the micro-implant is based on the thickness of the patient's oral mucosa to ensure the stability of the micro-implant after implantation.

[0022] As a preferred solution, before implanting the micro-implant, it also includes the step of local anesthesia of the implantation site to relieve the pain and discomfort of the patient.

[0023] As a preferred solution, after the implant is implanted, it also includes performing an X-ray examination to confirm the position of the implant.

[0024] The advantages of the present invention compared with the prior art are as follows:

[0025] 1. Improve positioning accuracy: Through the matching connection between the micro-implant and the micro-implant supported guide plate, high-precision positioning of the implant position is achieved, avoiding the implant positioning deviation caused by only using the mucosa-supported guide plate in edentulous implant surgery, and the problems of complex traditional guide plate production and relying on manual judgment.

[0026] 2. Simplify the surgical process: Using the method of the present invention can significantly shorten the operation time, reduce the surgical steps, and improve the surgical efficiency.

[0027] 3. Reduce surgical trauma: The implantation trauma of the micro-implant is small, and the use of the supported guide plate avoids the operation of widely flipping the gingiva in traditional surgery, reducing the surgical trauma and postoperative recovery time.

[0028] 4. Improve patient comfort: Due to the short operation time and small trauma, the postoperative discomfort and pain of the patient are significantly reduced, improving the patient's comfort.

[0029] 5. Enhance applicability: The method of the present invention is applicable to various oral environments, especially for implant surgery in emergency or complex oral environments, with higher applicability. Description of the Drawings

[0030] Figure 1 is a schematic structural diagram of the micro-implant of the present invention.

[0031] Figure 2 is a cross-sectional view of the connection between the micro-implant and the micro-implant supported guide plate of the present invention.

[0032] Figure 3 is a top view of the position of the micro-implant on the patient's alveolar ridge.

[0033] Figure 4 is a schematic structural diagram of the micro-implant supported guide plate of the present invention.

[0034] As shown in the figure: 1. Micro-implant, 2. Micro-implant supported guide plate, 101. Root of the micro-implant, 102. Crown of the micro-implant, 1021. Connection groove, 201. Alveolar ridge line, 202. Connection protrusion, 203. Guide ring, 2021. Link groove. Detailed Embodiments

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In combination with the accompanying drawings, a micro-implant and a micro-implant supported guide plate include a micro-implant 1 and a micro-implant supported guide plate 2;

[0039] The micro-implant 1 includes a micro-implant root 101 and a micro-implant crown 102. The micro-implant root 101 is a threaded structure. The micro-implant crown 102 is fixedly arranged at the top of the micro-implant root 101. The micro-implant crown 102 is a hexahedron. The size of the micro-implant crown 102 increases sequentially from the occlusal surface to the root direction. A connecting groove 1021 with a wider outer width and a narrower inner width is provided on the occlusal surface of the micro-implant crown 102;

[0040] The micro-implant supported guide plate 2 is U-shaped. A connecting groove 2021 and a protrusion 202 are provided on the inner surface of the patient's micro-implant supported guide plate 2. The connecting protrusion 202 is opposite to the connecting groove 1021 in position. The connecting groove 2021 is used in matching with the micro-implant crown 102;

[0041] A plurality of guide rings 203 are provided on the micro-implant supported guide plate 2.

[0042] The number of the connecting protrusions 202 is 3 to 4.

[0043] The root 101 of the micro-implant is thinner and shorter than that of the conventional implant. Its length is selected according to the thickness of the patient's oral mucosa to ensure that after the micro-implant is implanted, the root is implanted 3-4 mm under the bone, and the root length is the mucosa thickness plus 3-4 mm.

[0044] A method for the combined use of a micro-implant and a micro-implant-supported guide plate specifically includes the following steps:

[0045] 1) Preoperative preparation: The patient completes cone-beam computed tomography (CBCT) scanning and preoperative examinations and is confirmed to meet the conditions for implant surgery.

[0046] 2) Preliminary design: Conduct a preliminary design of the normal implant sites in the patient's oral cavity. On the premise of avoiding the normal implant sites, design 3-4 micro-implant sites, and select a micro-implant with a suitable length model according to the thickness of the patient's oral mucosa.

[0047] 3) Micro-implant implantation: Implant 3-4 micro-implants respectively at the alveolar ridge crest, and require to maintain the insertion path, taking the function of replacing the natural tooth as the position for the subsequent production of the guide plate and the precise positioning of the implant.

[0048] 4) Guide plate production: Take another CBCT scan to obtain accurate oral structure information, take a mold, and produce a micro-implant-supported guide plate, which is designed with a guiding structure matching the implanted micro-implant.

[0049] 5) Implant implantation and micro-implant removal: Use the produced guide plate to guide the precise implantation of the conventional implant. After confirming that the implantation position of the conventional implant is accurate, reverse-rotate and remove the previously implanted micro-implant.

[0050] The selection of the micro-implant is based on the thickness of the patient's oral mucosa to ensure the stability of the micro-implant after implantation.

[0051] Before implanting the micro-implant, it also includes the step of local anesthesia of the implanting site to relieve the patient's pain and discomfort.

[0052] After the implant is implanted, it also includes performing an X-ray examination to confirm the position of the implant.

[0053] When the present invention is specifically implemented, preoperative preparation: The patient completes CBCT scanning and preoperative examinations and is confirmed to meet the conditions for implant surgery.

[0054] Preliminary design: Select a suitable micro-implant length model according to the patient's oral condition.

[0055] Micro-implant implantation: Implant 3-4 micro-implants at the alveolar ridge crest and maintain the insertion path.

[0056] Guide plate fabrication: A micro-implant-supported guide plate is fabricated based on CBCT data. The connecting grooves and protrusions on the guide plate match the crowns of the implanted micro-implants and the grooves on the crowns.

[0057] Implant placement and micro-implant removal: A micro-implant-supported guide plate is used to guide the placement of conventional implants. After confirming the correct position, the micro-implants are removed.

[0058] Example 1:

[0059] For an edentulous patient with a moderately thick oral mucosa, micro-implants of conventional length are selected for implantation. The implant placement surgery is completed according to the above overall working method. After the surgery, X-ray examination is performed to confirm the correct position of the implants, and regular monitoring and maintenance are carried out. This example verifies the effectiveness and feasibility of the method of the present invention.

[0060] Example 2:

[0061] For an edentulous patient with a thin oral mucosa, shorter micro-implants are selected for implantation to ensure that the top of the micro-implant protrudes a certain distance from the alveolar ridge crest after implantation. The surgical procedure is the same as that in Example 1, and X-ray examination and regular monitoring are also carried out after the surgery. This example further verifies the applicability of the method of the present invention in different oral environments.

[0062] Example 3:

[0063] For a patient with a complex oral anatomical structure, according to the different thicknesses of the oral mucosa, shorter-rooted micro-implants are selected at the thin mucosa area, and longer-rooted micro-implants are selected at the thicker mucosa area. A micro-implant-supported guide plate is designed to adapt to the patient's oral characteristics. In the preliminary design stage, personalized design is carried out based on the patient's CBCT data to ensure the tight fit between the guide plate and the micro-implants. Then the surgery is completed according to the above overall working method, and necessary examinations and monitoring are carried out after the surgery. This example demonstrates the application effect of the method of the present invention in a complex oral environment.

[0064] In the present invention, the pre-implanted micro-implants are connected to the connecting grooves and protrusions on the micro-implant-supported guide plate in a matching manner with the crowns of the micro-implants, ensuring the precise positioning of the micro-implant-supported guide plate. Then, the guide rings on the micro-implant-supported guide plate are used to guide the precise implantation of conventional implants, thereby achieving high-precision positioning of the implants.

[0065] In summary, a micro-implant and a micro-implant-supported guide plate of the present invention and their cooperative use method can significantly improve the positioning accuracy of implants in edentulous implant surgery, simplify the surgical procedure, reduce surgical trauma, improve the patient's comfort, and ensure the long-term stability of the implants.

[0066] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and design, without creative efforts, structural modes and embodiments similar to the technical solution without departing from the gist of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A micro-implant and a micro-implant supporting guide plate, characterized in that: Includes micro-implants and micro-implant supported guides; The micro-implant comprises a micro-implant root and a micro-implant crown, wherein the micro-implant root is a threaded structure, the micro-implant crown is fixedly arranged at the top of the micro-implant root, the micro-implant crown is a hexagon, the size of the micro-implant crown increases from the maxillary surface to the root, and a connecting groove with a wide outside and a narrow inside is arranged in the center of the maxillary surface of the micro-implant crown to facilitate the formation of a placement channel; The micro-implant supporting guide plate is U-shaped, and the inner surface of the micro-implant supporting guide plate is provided with grooves and protrusions matching the shape of the micro-implant crown. The inner surface groove of the connecting guide plate is relatively matched with the outer shape of the micro-implant crown for use, and the central protrusion of the inner surface groove of the guide plate is relatively positioned with the central groove of the micro-implant crown for use; The micro-implant supporting guide plate is provided with a plurality of guide rings.

2. The micro-implant and micro-implant supporting guide plate according to claim 1, characterized in that: The number of the connecting grooves and protrusions is the same as the number of the implanted micro-implants.

3. The micro-implant and micro-implant supporting guide plate according to claim 1, characterized in that: The root of the micro-implant is thinner and shorter than that of a conventional implant. Its length is selected according to the thickness of the patient's oral mucosa to ensure that after the micro-implant is implanted, the root is implanted 3 to 4 mm below the bone and the root length is the mucosa thickness plus 3 to 4 mm to ensure the stability of the micro-implant after implantation.

4. A method for using a micro-implant and a micro-implant supporting guide plate, characterized in that: The specific steps include: 1) Preoperative preparation: The patient completes cone beam computed tomography and preoperative examinations to determine whether he or she meets the conditions for implant surgery; 2) Preliminary design: Perform preliminary design of conventional implant sites in the patient's mouth. Design 3-4 micro-implant sites while avoiding conventional implant sites. Select micro-implants of appropriate length and size based on the thickness of the patient's oral mucosa. 3) Micro-implant implantation: 3 to 4 micro-implants are implanted on the top of the alveolar ridge, and they are required to remain in place to replace the functional position of natural teeth, which is used for the subsequent preparation of guide plates and precise positioning of implants; 4) Guide plate making: cone beam computed tomography is taken again to obtain accurate oral structure information, and a mold is taken to make a micro-implant-supported guide plate, which is designed with a guiding structure that matches the implanted micro-implant; 5) Implant placement and micro-implant removal: Use the prepared guide to guide the precise placement of conventional implants. After confirming that the conventional implant placement is accurate, reversely rotate and remove the previously implanted micro-implant.

5. The method for using a micro-implant and a micro-implant supporting guide plate according to claim 4, characterized in that: The micro-implant is selected based on the thickness of the patient's oral mucosa to ensure the stability of the micro-implant after implantation.

6. The method for using a micro-implant and a micro-implant supporting guide plate according to claim 4, characterized in that: Before implanting the micro-implant, a local anesthesia step is also included at the implantation site to reduce the patient's pain and discomfort.

7. The method for using a micro-implant and a micro-implant supporting guide plate according to claim 4, characterized in that: After the implant is placed, an X-ray is also taken to confirm the position of the implant.

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