Novel implant structure with double implant retention and novel guide plate system

Abstract

The utility model provides a novel double-implant retention implant structure and a novel guide plate system, and relates to the field of oral implantation. The implant structure comprises a first implant and a second implant; the novel guide plate system comprises an implantation guide plate and a correction guide plate, the implantation guide plate is of an integrally-formed structure and comprises a sleeving part, a first implantation part and a second implantation part, and the correction guide plate comprises an insertion block and a positioning piece. The implant structure is fixed through double implants, and the problems of poor stability of the implants, disproportionality of crown roots of short implants and the like in the immediate planting process are effectively solved by utilizing transverse and longitudinal mutual restraining force. Meanwhile, a double-implant implanting guide plate system formed by matching an implanting guide plate and a correcting guide plate is adopted, and the accuracy of the relative positions of the first implant and the second implant is ensured through mutual positioning verification between the implants and between the guide plates.

Description

Technical Field

[0001] This utility model relates to the field of oral implant technology, specifically to a novel implant structure and a novel guide plate system for dual implant fixation. Background Technology

[0002] Dental implant restoration effectively restores tooth function and offers advantages such as stability, durability, no damage to adjacent teeth, and aesthetic comfort, making it the preferred treatment option for most patients with missing teeth. Immediate implantation is a highly efficient tooth replacement technique that involves placing the implant into the alveolar bone immediately after tooth extraction, without waiting for the extraction wound to fully heal. This effectively reduces alveolar bone resorption, accelerates functional recovery, reduces the number of surgeries, and shortens the treatment period. However, immediate implantation also faces some challenges. For example, because the extraction socket is usually larger than the implant diameter, the initial stability of the implant relies primarily on a small amount of bone tissue in the extraction socket, leading to insufficient initial implant stability. Furthermore, in clinical practice, many patients cannot meet the implant depth requirements due to insufficient alveolar bone volume and limitations imposed by factors such as the maxillary sinus and nerve canal. In order to solve the problem of insufficient bone volume, bone grafting surgery is usually used to increase bone height, thereby achieving the positioning and fixation of the implant. However, bone grafting surgery is not only lengthy and costly, but also carries certain surgical risks, making it difficult for many patients to accept. This further reduces the stability of the implant positioning, leading to loosening during subsequent use, poor implantation results, and the risk of secondary damage to the patient. Utility Model Content

[0003] To address the problems existing in the prior art, the purpose of this utility model is to provide a novel implant structure with dual implant fixation. This implant structure uses dual implants for fixation and utilizes the mutual restraint forces in the lateral and longitudinal directions to effectively solve problems such as poor implant stability and imbalance of crown-root ratio in short implants during immediate implantation.

[0004] Another objective of this invention is to provide a novel guide plate system for implanting the aforementioned implant mechanism.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A novel implant structure with dual implant fixation includes a first implant and a second implant. The first implant has a screw hole in the middle of its top surface, and the screw hole is a countersunk hole. The outer surface of the first implant has external threads, and the root square part of the first implant has an opening groove. An installation hole is opened in the opening groove, and the installation hole is a through hole. The inner wall of the installation hole has internal threads, and the central axis of the installation hole is perpendicular to that of the screw hole. The second implant is set with corresponding installation holes. One end of the second implant is set with a spiral head structure, and the other end is set with a conical structure. Multiple micropores are evenly arranged in the conical structure, and the micropores are perpendicular to the central axis of the second implant. A through groove is set in the middle of the second implant, and the through groove communicates with the micropores.

[0007] Based on further optimization of the above solution, the screw hole and the mounting hole are not connected.

[0008] Based on further optimization of the above scheme, the width of the through groove is smaller than the diameter of the second implant.

[0009] A novel guide plate system for a novel implant structure for dual implant retention includes an implantation guide plate and an orthodontic guide plate. The implantation guide plate is an integrally molded structure, including a sleeve portion, a first implant portion, and a second implant portion. Sleeve portions are respectively provided on both sides of the first implant portion, and the sleeve portions are set to correspond to the crown structures of the adjacent teeth on both sides of the extraction socket. The first implant portion is located above the extraction socket, and a first implant through hole is opened in the middle of the first implant portion corresponding to the extraction socket. The second implant portion is located below the front end of the first implant portion and is a vertical guide plate structure. A second implant through hole is opened at the lower end of the second implant portion corresponding to the installation hole of the first implant. Orthodontic through holes are respectively opened on the front and rear sidewalls of the top of the first implant portion. The orthodontic guide plate includes an insert and a positioning element. The positioning element is set on the bottom surface of the insert corresponding to the screw hole of the first implant. The insert is set to correspond to the first implant through hole, and a positioning through hole is opened on the insert corresponding to the orthodontic through hole.

[0010] Based on further optimization of the above scheme, the first planting through hole is a rectangular hole, and the corresponding cross-section of the insert is rectangular, thereby achieving anti-rotation during the insertion process of the insert; the shortest side of the first planting through hole is greater than the outer diameter of the first implant.

[0011] Based on further optimization of the above scheme, the correction through hole and the positioning through hole can be set as any one of rectangular hole, circular hole, and elliptical hole; the correction through hole and the positioning through hole are connected and positioned by inserting positioning pins.

[0012] Based on further optimization of the above scheme, an indicator mark is provided on the surface of the insertion block on the upper side of the positioning through hole to indicate the overlap between the positioning through hole and the correction through hole, thereby facilitating the insertion of the positioning pin.

[0013] The following are the technical effects of this utility model:

[0014] This invention utilizes a dual-implant retention system with a first and a second implant. Through mutual lateral and longitudinal restraint forces, it effectively enhances the initial stability of the implant during immediate placement, while increasing the osseointegration area and preventing implant dislodgement or loosening after implantation. This invention also addresses the issue of an excessively large crown-to-root ratio by employing a dual-implant system, thereby avoiding the surgical risks associated with bone grafting and mitigating the problems of prolonged treatment time and increased costs. Furthermore, the through-type design of the second implant promotes nutrient delivery, thereby facilitating the ingrowth of new bone, blood vessels, and nerves, ensuring long-term implant stability. This dual-implant structure is suitable for patients with small sinus-crist and canal-crist distances, as well as for patients requiring immediate anterior tooth implantation, demonstrating broad applicability and strong practicality.

[0015] This invention utilizes a dual-implant implantation guide system formed by the combination of an implantation guide and an orthodontic guide. The implantation guide provides vertical positioning for the first implant and preliminary positioning for the second implant. The orthodontic guide, in conjunction with the implanted first implant, then positions the second implant. Through mutual positioning verification between implants and between guides, the system ensures the accuracy of the relative positions of the first and second implants, preventing displacement or loosening of the implantation guide during implantation. This avoids the deviations caused by traditional tooth-supported, mucosa-supported, and bone-supported guides. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the novel implant structure in an embodiment of this utility model.

[0017] Figure 2 This is a schematic diagram of the implanted guide plate in an embodiment of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the correction guide plate in an embodiment of this utility model.

[0019] Figure 4 This is a schematic diagram of the implantation process of the guide plate in an embodiment of this utility model.

[0020] Among them, 11, first implant; 111, opening groove; 112, mounting hole; 113, screw hole; 12, second implant; 121, micro-hole; 122, through groove; 20, implantation guide plate; 21, sleeve part; 22, first implantation part; 221, first implantation through hole; 222, correction through hole; 23, second implantation part; 230, second implantation through hole; 30, correction guide plate; 31, insert block; 311, positioning through hole; 312, indicator mark; 32, positioning component. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1:

[0023] A novel implant structure with dual implant fixation, referring to Figure 1 As shown, the implant includes a first implant 11 and a second implant 12. A screw hole 113 is formed in the center of the top surface 11 of the first implant, and the screw hole 113 is a countersunk hole (the screw hole 113 is used to install a fixing screw for connection with the implantation abutment; simultaneously, a connecting groove for the implantation abutment can also be formed in the center of the top surface of the first implant 11, the connecting groove being located above the screw hole 113 and interconnected). The outer surface of the first implant 11 is provided with external threads, and an opening groove 111 is provided at the root square portion (i.e., the center of the bottom end) of the first implant 11. An installation hole 112 is formed in the opening groove 111, and the installation hole 112 is a through hole. The inner wall of the installation hole 112 is provided with internal threads, and the central axis of the installation hole 112 is perpendicular to the central axis of the screw hole 113 (e.g., ...). Figure 1 (As shown); the screw hole 113 and the mounting hole 112 are not connected. The second implant 12 is provided corresponding to the mounting hole 112 (that is, the outer wall of the second implant 12 is provided with an external thread and the external thread of the second implant 12 matches the internal thread of the mounting hole 112, such as...). Figure 1 (as shown) and one end of the second implant 12 (i.e. Figure 1 The right end shown is configured as a spiral head structure, and the other end (i.e. Figure 1 The left end (as shown) is configured as a cone structure, with multiple micropores 121 evenly distributed at the cone structure (the number of micropores can be set according to the actual situation). The micropores 121 are perpendicular to the central axis of the second implant 12. A through groove 122 is provided in the middle of the second implant 12, and the through groove 122 communicates with the micropores 121. The width of the through groove 122 is smaller than the diameter of the second implant 12 (e.g., ...). Figure 1 (As shown).

[0024] Example 2:

[0025] A novel guide plate system for a novel implant structure with dual implant fixation, used for implantation of the novel implant structure described in Example 1, includes an implantation guide plate 20 and a correction guide plate 30, wherein the implantation guide plate 20 is a one-piece molded structure (e.g., Figure 2As shown), it includes a fitting part 21, a first implant part 22, and a second implant part 23. Fitting parts 21 are respectively provided on both sides of the first implant part 22, and the fitting parts 21 are configured to correspond to the crown structures of the adjacent teeth on both sides of the extraction socket (the implantation guide 20 is printed using 3D printing technology, so the fitting parts 21 correspond to the shape of the adjacent teeth on both sides of the extraction socket within the printer's internal cavity, ensuring that the fitting parts 21 can fit onto the outer walls of the adjacent teeth on both sides of the extraction socket). The first implant part 22 is located above the extraction socket, and a first implantation through-hole 221 is opened in the middle of the first implant part 22 corresponding to the extraction socket. The first implantation through-hole 221 is a rectangular hole (e.g., ...). Figure 2 As shown), the corresponding insert 31 has a rectangular cross-section, thus achieving anti-rotation during the insertion process; the shortest side of the first planting through hole 221 is greater than the outer diameter of the first implant 11. The second planting part 23 is located below the front end of the first planting part 22 and the second planting part 23 has a vertical guide plate structure (as shown). Figure 2 As shown), a second planting through hole 230 is opened at the lower end of the second planting part 23 (i.e., the end away from the first planting part 22) corresponding to the mounting hole 112 of the first implant 11 (as shown). Figure 2 As shown, the inner diameter of the second implantation through-hole 230 is slightly larger than the inner diameter of the mounting hole 112), and correction through-holes 222 are respectively opened on the front and rear sidewalls of the top of the first implantation part 22 (as shown). Figure 2 (As shown). The correction guide plate 30 includes an insert block 31 and a positioning element 32 (as shown). Figure 3 As shown), the positioning element 32 is provided on the bottom surface of the insertion block 31 corresponding to the screw hole 113 of the first implant 11. The insertion block 31 is provided corresponding to the first implantation through hole 221, and a positioning through hole 311 is provided on the insertion block 31 corresponding to the correction through hole 222. The correction through hole 222 and the positioning through hole 311 can be set as any one of rectangular holes, circular holes, and elliptical holes (see...). Figure 2 and Figure 3 As shown, a rectangular hole is used in this embodiment); the straightening through hole 222 and the positioning through hole 311 are connected and positioned by inserting a positioning pin (the positioning pin can be designed according to the specific structure of the straightening through hole 222 and the positioning through hole 311, which can be understood by those skilled in the art); an indicator mark 312 is provided on the surface of the insert block 31 on the upper side of the positioning through hole 311 (the indicator mark can be made by opening an indicator hole, setting a scale line or other forms) to indicate the overlap between the positioning through hole 311 and the straightening through hole 222, thereby facilitating the insertion of the positioning pin.

[0026] Working principle:

[0027] During the implantation process using the novel implant structure described in Example 1, firstly, based on the patient's extraction socket and the adjacent teeth on both sides of the extraction socket, an implantation guide 20 is printed using 3D printing technology (the first implantation through-hole 221 and the second implantation through-hole 230 are respectively opened according to the first implant 11 and the second implant 12). Simultaneously, an orthodontic guide 30 is designed based on the first implantation through-hole 221 and the screw holes 113 of the first implant 11. Then, the implantation guide 20 is placed at the extraction socket, ensuring that the first implantation through-hole 221 corresponds to the extraction socket (the insertion guide 20 is achieved by the sleeve 21 connecting to the adjacent teeth on both sides of the extraction socket, and the second implant 23 contacting the anterior gingival wall of the extraction socket). (Fixed and positioned); then, the first implant is inserted into the extraction socket through the first implant through hole 221; then, the orthodontic guide 30 is inserted into the corresponding first implant through hole 221 (during this process, the positioning member 32 cooperates with the screw hole 113; when the bottom end of the indicator mark 312 is located on the upper side of the end face of the first implant part 22, the orthodontic through hole 222 coincides with the positioning through hole 311, and the orthodontic guide 30 and the implant guide 20 are fixed and positioned by the insertion of the positioning pin). At this time, the second implant 12 is implanted through the second implant through hole 230 to ensure that the second implant mounting hole 112 matches, and at the same time, the conical end of the second implant 12 is implanted into the alveolar bone on the other side (i.e., the posterior side).

[0028] Example 3:

[0029] As another preferred embodiment of this utility model, based on the above-described embodiment 2, in order to ensure a stable fit between the correction guide plate 30 and the first implant 11 and to avoid damage to the inner wall of the screw hole 113, the positioning member 31 includes a support shaft, a protective strip, and a spring (such as...). Figure 3 As shown, the support shaft is located in the middle of the bottom surface of the insert block 31, and protective strips are provided on both sides of it. The top of the protective strips is fixedly connected to the bottom surface of the insert block 31, and the bottom of the protective strips is connected to the bottom of the support shaft through a spring piece. The upper end of the support shaft is set as a tapered structure with a smaller top and a larger bottom, which is used to support the top of the protective strips.

Claims

1. A novel implant structure for dual implant retention, characterized by: The first implant and the second implant are included, a screw hole is formed in the middle of the top surface of the first implant and the screw hole is a counterbore, external threads are arranged on the outer surface of the first implant and an opening groove is arranged on the root side of the first implant, an installation hole is formed in the opening groove and the installation hole is a through hole, internal threads are arranged on the inner wall of the installation hole and the central axis of the installation hole and the screw hole are perpendicular to each other; the second implant is arranged corresponding to the installation hole and one end of the second implant is arranged as a screw head structure and the other end is arranged as a cone structure, a plurality of micropores are uniformly arranged at the cone structure and the micropores are perpendicular to the central axis of the second implant, a through groove is arranged in the middle of the second implant and the through groove is communicated with the micropores.

2. A novel implant structure for dual implant-retained according to claim 1, characterized in that: The width of the through groove is smaller than the diameter of the second implant.

3. A novel guide system for a novel implant structure with dual implant retention as claimed in claim 1 or 2, characterized in that: The implant guide plate and the correction guide plate are included, the implant guide plate is an integral structure, including a sleeving part, a first implant part and a second implant part, the first implant part is provided with the sleeving part on both sides, the sleeving part is arranged corresponding to the tooth crown structure of the adjacent teeth on both sides of the tooth extraction socket, the first implant part is located above the tooth extraction socket and a first implant through hole is formed in the middle of the first implant part corresponding to the tooth extraction socket, the second implant part is located below the front end of the first implant part and is a vertical guide plate structure, a second implant through hole is formed in the lower end of the second implant part corresponding to the installation hole of the first implant, and a correction through hole is formed in the front and rear sidewalls of the top end of the first implant part; the correction guide plate includes a plug and a positioning piece, the positioning piece is arranged on the bottom surface of the plug corresponding to the screw hole of the first implant, the plug is arranged corresponding to the first implant through hole and a positioning through hole is formed in the plug corresponding to the correction through hole.

4. A novel guide system for a novel implant structure with dual implant retention as claimed in claim 3, characterized in that: The first implant through hole is a rectangular hole and the corresponding plug cross section is a rectangle; the shortest side of the first implant through hole is greater than the outer diameter of the first implant.

5. A novel guide system for a novel implant structure with dual implant retention as claimed in claim 3, wherein: The correction through hole and the positioning through hole can be arranged as any one of a rectangular hole, a circular hole and an elliptical hole; the correction through hole and the positioning through hole are connected and positioned through a plug-in positioning pin.

6. A novel guide system for a novel implant structure with dual implant retention as claimed in claim 3, characterized in that: An indication mark is arranged on the surface of the plug on the upper side of the positioning through hole.

Images