A lateral placement implant restoration structure
The lateral placement implant restoration structure uses limiting slots and threaded connections to fix the insertion crown to the abutment, solving the adhesive irritation problem and improving the stability and ease of operation of the implant restoration system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA AEROSPACE SCI & IND GRP 731 HOSPITAL
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-30
AI Technical Summary
In traditional implant-bonded crown restorations, the adhesive can easily be squeezed out and solidify between the crown and the abutment, causing irritation to the gums and bone tissue, affecting the lifespan of the implant restoration and the patient's experience.
The implant prosthesis adopts a lateral placement structure. Through the cooperation of the first limiting groove, the second limiting groove and the fixation block, as well as the threaded connection of the fixing screw and the positioning screw in the screw hole, the insertion crown and the abutment are stably fixed, avoiding the use of adhesive.
It enhances the stability of the implant restoration system, avoids the use of adhesives, reduces irritation to oral tissues, and improves the reliability and ease of operation of the restoration.
Smart Images

Figure CN224421193U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oral technology, and in particular to a lateral placement implant prosthesis structure. Background Technology
[0002] Dental implant systems are an important means of modern dental restoration, typically consisting of an implant, abutment, crown, and retention screws. The abutment is connected to the implant at its base, and the abutment and implant are securely connected together by retention screws; the crown is then cemented to the retention portion of the abutment.
[0003] In traditional implant-bonded crown restoration procedures, the adhesive is easily squeezed out and solidified between the crown and the abutment, and remains under the gum line, making it difficult to clean. This irritates the gums and bone tissue around the implant, leading to peri-implantitis, which affects the lifespan of the implant restoration and the patient's experience. Therefore, this invention proposes a lateral placement implant restoration structure to help solve the above problems. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a lateral placement implant restoration structure.
[0005] To achieve the above objectives, this utility model provides a lateral placement implant restoration structure, including a crown. A first limiting groove is longitudinally formed through the center of the front of the crown. Several second limiting grooves are symmetrically formed through both sides of the front of the crown, and the second limiting grooves communicate with the first limiting grooves. An abutment is installed inside the crown. The abutment includes an upper abutment body, a middle abutment body fixedly disposed at the bottom of the upper abutment body, and a lower abutment body fixedly disposed at the bottom of the middle abutment body. The upper abutment body is disposed inside the crown and is engaged in the first limiting groove. Several retention blocks are symmetrically fixedly disposed on both sides of the upper abutment body and are engaged in the second limiting grooves. An implant is installed at the bottom of the abutment.
[0006] Furthermore, the top of the implant has a first threaded hole, and the top of the abutment has a second threaded hole longitudinally. The inner diameters of the first threaded hole and the second threaded hole are the same and they are located on the same axis. A positioning screw is inserted into the first threaded hole and the second threaded hole.
[0007] Furthermore, the positioning crown has symmetrical through-holes on both sides, the first screw holes are connected to the second limiting slot, the top of the fixing block has a through-hole, and the top of the middle base has symmetrical through-holes on both sides. The inner diameters of the first screw holes, the second screw holes and the third screw holes are the same and located on the same axis. The first screw holes, the second screw holes and the third screw holes are threaded with fixing screws.
[0008] Furthermore, the lower base, upper base, and middle base are integrally formed and fixed, and the second limiting slot is correspondingly set with the fixing block.
[0009] Furthermore, the central abutment is located at the bottom of the insertion crown, and the central abutment and the insertion crown are mutually restrictive and fitted together.
[0010] Furthermore, the outer diameter of the fixing screw is smaller than the outer diameter of the positioning screw. When the fixing screw is tightened, its top end is flush with the top end of the upper base body. When the positioning screw is tightened, its top end is flush with the top end of the insertion crown.
[0011] Furthermore, the top of the positioning screw is provided with a first locking hole, and the top of the fixing screw is provided with a second locking hole, both of which are square holes.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model achieves the limiting and fixing between the implant crown and the abutment through the cooperation of the first limiting slot, the second limiting slot and the fixing block, and the threaded connection of the fixing screw in the first screw hole, the second screw hole and the third screw hole, which enhances the overall stability. The positioning screw is threaded into the first threaded hole of the implant and the second threaded hole of the abutment, which firmly fixes the abutment to the implant, further improving the stability of the entire implant restoration system and ensuring the reliability of the restoration during long-term use.
[0014] 2. When the fixing screw of this utility model is tightened, its top end is flush with the top end of the upper base body, and when the positioning screw is tightened, its top end is flush with the top end of the insertion crown, so that the screw will not protrude from the surface of the restoration after tightening, thus avoiding irritation to the oral tissue.
[0015] 3. The insertion crown of this utility model is fitted to the abutment by lateral positioning, which is simple to operate and easy to implement. Compared with the traditional implant adhesive crown restoration operation, this system does not require the use of adhesive, avoiding the situation where the adhesive is squeezed out and solidified between the crown and the abutment and remains under the gum line, which is difficult to clean. Attached Figure Description
[0016] To more clearly illustrate the solutions in this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a perspective view provided by this utility model;
[0018] Figure 2 This is the front view provided by this utility model;
[0019] Figure 3 This is a sectional view provided by this utility model;
[0020] Figure 4 This is a front view of the base and plug crown provided by this utility model before installation;
[0021] Figure 5 This is a sectional view of the base and plug crown provided by this utility model before installation;
[0022] Figure 6 This is a top view of the positioning screw provided by this utility model;
[0023] Figure 7 This is a top view of the fixing screw provided by this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Insertion crown; 2. Abutment; 21. Upper abutment body; 22. Middle abutment body; 23. Lower abutment body; 3. Retention block; 4. Second limiting slot; 5. First limiting slot; 6. First screw hole; 7. Second screw hole; 8. Third screw hole; 9. Second threaded hole; 10. Fixing screw; 11. Positioning screw; 12. Implant; 13. First threaded hole; 14. First locking hole; 15. Second locking hole. Detailed Implementation
[0026] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] The terms "comprising" and "having," and any variations thereof, used in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order.
[0028] Please see Figure 1-7 A lateral placement implant prosthesis structure includes an insertion crown 1. A first limiting groove 5 is longitudinally formed through the center of the front of the insertion crown 1. Several second limiting grooves 4 are symmetrically formed through both sides of the front of the insertion crown 1, and the second limiting grooves 4 communicate with the first limiting grooves 5. An abutment 2 is installed inside the insertion crown 1. The abutment 2 includes an upper abutment body 21, a middle abutment body 22 fixedly disposed at the bottom of the upper abutment body 21, and a lower abutment body 23 fixedly disposed at the bottom of the middle abutment body 22. The lower abutment body 23, the upper abutment body 21, and the middle abutment body 22 are integrally formed and fixedly disposed. The upper abutment body 21 is disposed inside the insertion crown 1, serving to support and connect the insertion crown 1. The upper abutment body 21 is snapped into the first limiting groove 5. The middle abutment body 22 is located at the bottom of the insertion crown 1, serving to limit the insertion of the crown. The middle base 22 and the plug crown 1 are positioned to ensure that the entire base 2 is accurately positioned within the plug crown 1. The design of the middle base 22 makes the connection between the base 2 and the plug crown 1 more stable, and also provides support for the lower base 23. Several retaining blocks 3 are symmetrically fixed on both sides of the upper base 21. The second limiting slot 4 is set one-to-one with the retaining block 3. The retaining block 3 is installed in the second limiting slot 4. The upper base 21 is designed to cooperate with the first limiting slot 5 and the retaining block 3 in the plug crown 1 to achieve the lateral positioning and initial fixation of the plug crown 1. The fixing screw 10 is threaded into the first screw hole 6, the second screw hole 7 and the third screw hole 8 to further fix the plug crown 1 and the base 2 together, enhancing the overall stability.
[0029] The abutment 2 has an implant 12 mounted at its bottom. A lower abutment body 23 connects to the implant 12, securely fixing the abutment 2 to the implant 12. The structural design of the lower abutment body 23 allows for a tight fit with the implant 12. The abutment 2 and implant 12 are fixed together by positioning screws 11, ensuring the stability of the entire implant restoration system. By dividing the abutment 2 into upper, middle, and lower parts, the occlusal force can be better distributed and transmitted, reducing damage caused by excessive local stress, making the entire implant restoration system more stable and reliable during long-term use.
[0030] The top of the implant 12 has a first threaded hole 13, and the top of the abutment 2 has a second threaded hole 9 longitudinally. The inner diameters of the first threaded hole 13 and the second threaded hole 9 are the same and they are located on the same axis. A positioning screw 11 is inserted into the first threaded hole 13 and the second threaded hole 9. The abutment 2 is firmly fixed to the implant 12 by the positioning screw 11 being threaded into the first threaded hole 13 and the second threaded hole 9.
[0031] The positioning crown 1 has symmetrical through-holes 6 on both sides, which are connected to the second limiting groove 4. The top of the retaining block 3 has a through-hole 7. The top of the middle base body 22 has symmetrical through-holes 8 on both sides. The inner diameters of the first screw hole 6, the second screw hole 7 and the third screw hole 8 are the same and they are located on the same axis. The first screw hole 6, the second screw hole 7 and the third screw hole 8 are threaded with fixing screws 10. The fixing screws 10 are threaded into the first screw hole 6, the second screw hole 7 and the third screw hole 8, which further fixes the crown 1 and the base 2 together and enhances the overall stability.
[0032] As an improvement to the above technical solution, the outer diameter of the fixing screw 10 is smaller than the outer diameter of the positioning screw 11. When the fixing screw 10 is tightened, its top end is flush with the top end of the upper abutment body 21. When the positioning screw 11 is tightened, its top end is flush with the top end of the insertion crown 1, thus securing the abutment 2 and the implant 12 together. When the fixing screw 10 is tightened, its top end is flush with the top end of the upper abutment body 21, thus securing the insertion crown 1, the retention block 3, and the middle abutment body 22 together. When the positioning screw 11 is tightened, its top end is flush with the top end of the insertion crown 1, so that the screw will not protrude from the surface of the restoration after tightening, thus avoiding irritation to the oral tissues.
[0033] The top of the positioning screw 11 has a first locking hole 14, and the top of the fixing screw 10 has a second locking hole 15. Both the first locking hole 14 and the second locking hole 15 are square holes. The square holes are designed to facilitate the use of tools to tighten or loosen the positioning screw 11 or the fixing screw 10. The first locking hole 14 on the top of the positioning screw 11 and the second locking hole 15 on the top of the fixing screw 10 are square holes, which facilitates the use of tools (such as an L-shaped Allen wrench) for tightening operations.
[0034] The working principle and usage of this utility model:
[0035] In use, the upper abutment 21 is secured in the first limiting slot 5, and the retaining block 3 is secured in the second limiting slot 4, achieving initial positioning and fixation of the crown and abutment. Then, the fixing screw 10 is threaded into the first screw hole 6, the second screw hole 7, and the third screw hole 8 to further secure the crown 1 and abutment 2 together, enhancing overall stability. The positioning screw 11 is threaded into the first threaded hole 13 and the second threaded hole 9 to firmly fix the abutment 2 onto the implant 12. When the fixing screw 10 is tightened, its top is flush with the top of the upper abutment 21; when the positioning screw 11 is tightened, its top is flush with the top of the crown 1, ensuring that the screws do not protrude from the surface of the restoration after tightening, avoiding irritation to oral tissues. The positioning screw 11 has a first retaining hole 14 at its top, and the fixing screw 10 has a second retaining hole 15 at its top; both are square holes, facilitating tightening with tools.
[0036] Specifically, the process is as follows: First, the abutment 2 is fixed to the implant 12 using the positioning screw 11. Then, the insertion crown 1 is engaged with the retaining block 3 on the abutment 2 from the side through the first limiting groove 5 and the second limiting groove 4 to complete the initial positioning. Finally, the fixing screw 10 passes through the first screw hole 6, the second screw hole 7, and the third screw hole 8 to further fix the insertion crown 1 to the abutment 2. Through the lateral positioning of the abutment 2 and the insertion crown 1, and the fixing of the positioning screw 11 and the fixing screw 10, a stable connection of the entire implant restoration system can be achieved.
[0037] The above description is only used to illustrate the technical solution of this utility model, and is not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A lateral placement implant restoration structure, characterized in that: The device includes a connector crown (1), a first limiting groove (5) is longitudinally opened through the center of the front of the connector crown (1), and several second limiting grooves (4) are symmetrically arranged through the two sides of the front of the connector crown (1). The second limiting grooves (4) communicate with the first limiting grooves (5). A base (2) is installed inside the connector crown (1). The base (2) includes an upper base body (21), and a middle base body is fixedly arranged at the bottom of the upper base body (21). The abutment (22) has a lower abutment (23) fixedly installed at the bottom of the middle abutment (22), and an upper abutment (21) is installed inside the insertion crown (1). The upper abutment (21) is installed in the first limiting slot (5). Several retaining blocks (3) are symmetrically fixed on both sides of the upper abutment (21). The retaining blocks (3) are installed in the second limiting slot (4). An implant (12) is installed at the bottom of the abutment (2).
2. The lateral placement implant restoration structure according to claim 1, characterized in that: The implant (12) has a first threaded hole (13) at the top and a second threaded hole (9) is longitudinally opened at the top of the abutment (2). The first threaded hole (13) and the second threaded hole (9) have the same inner diameter and are located on the same axis. A positioning screw (11) is inserted into the first threaded hole (13) and the second threaded hole (9).
3. The lateral placement implant restoration structure according to claim 2, characterized in that: The positioning crown (1) has a first screw hole (6) symmetrically through-hole on both sides. The first screw hole (6) communicates with the second limiting groove (4). The top of the retaining block (3) has a second screw hole (7). The top of the middle base body (22) has a third screw hole (8) symmetrically arranged on both sides. The inner diameters of the first screw hole (6), the second screw hole (7) and the third screw hole (8) are the same and located on the same axis. The first screw hole (6), the second screw hole (7) and the third screw hole (8) are threaded with a fixing screw (10).
4. The lateral placement implant restoration structure according to claim 1, characterized in that: The lower base (23), upper base (21) and middle base (22) are integrally formed and fixedly arranged, and the second limiting slot (4) is correspondingly arranged with the fixing block (3).
5. The lateral placement implant restoration structure according to claim 1, characterized in that: The central base (22) is located at the bottom of the insertion crown (1), and the central base (22) and the insertion crown (1) are in a limiting fit.
6. The lateral placement implant restoration structure according to claim 3, characterized in that: The outer diameter of the fixing screw (10) is smaller than the outer diameter of the positioning screw (11). When the fixing screw (10) is tightened, its top end is flush with the top end of the upper base body (21). When the positioning screw (11) is tightened, its top end is flush with the top end of the insertion crown (1).
7. The lateral placement implant restoration structure according to claim 3, characterized in that: The top of the positioning screw (11) is provided with a first locking hole (14), and the top of the fixing screw (10) is provided with a second locking hole (15). Both the first locking hole (14) and the second locking hole (15) are square holes.