A spliced ​​fixed bridge repair

Abstract

This utility model discloses a spliced ​​fixed bridge restoration, including two retainers. Each retainer includes an abutment tooth and a crown. The crown is installed on the abutment tooth. Sub-bridges are fixedly installed on opposite sides of the two crowns. The two sub-bridges are detachably and fixedly connected. A retaining protrusion is fixedly installed on the upper inclined surface of one of the sub-bridges. A bridge connector is provided above the sub-bridge. A retaining groove is formed at the bottom of the bridge connector. The retaining protrusion is adapted to the retaining groove. The bridge connector is installed and fixed to the sub-bridge by the retaining protrusion being engaged in the retaining groove. The two sub-bridges of this utility model restoration are independently set, which facilitates the installation of the two crowns onto the abutment teeth on both sides. Then, the two sub-bridges are fixedly connected by tightening the connecting bolts, avoiding excessive grinding or repair of the abutment teeth and reducing damage to the patient's teeth.

Description

Technical Field

[0001] This utility model relates to the field of oral technology, and in particular to a spliced ​​fixed bridge restoration. Background Technology

[0002] Fixed prosthesis is a common dental restoration technique, commonly known as porcelain crown and bridge restoration, also called fixed partial prosthesis or fixed bridge restoration. Its main purpose is to restore missing teeth in the dentition, restore the patient's chewing function and aesthetics. Among fixed prostheses, the double-ended fixed bridge is the most common form. This type of fixed bridge has abutments at both ends of the bridge body, which are fixed to the abutment teeth to form a fixed whole with the abutment teeth.

[0003] In traditional fixed bridge restorations, the restoration, as a whole, is usually inserted into the abutment teeth in only one direction. Therefore, the abutment teeth must be properly prepared to form a common path of insertion. However, in actual clinical practice, it is often encountered that even after tooth preparation, the adjacent teeth of the missing tooth still cannot achieve a common path of insertion. In order to achieve successful installation of the restoration, it is usually necessary to remove the nerves of these adjacent teeth and seek a common path of insertion through excessive grinding or local repair. This approach not only causes unnecessary damage to the patient's teeth but may also increase the patient's pain and financial burden. Therefore, this invention proposes a spliced ​​fixed bridge restoration to 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 spliced ​​fixed bridge repair body.

[0005] To achieve the above objectives, this utility model provides a spliced ​​fixed bridge restoration, including two retainers. Each retainer includes an abutment tooth and a crown. The crown is mounted on the abutment tooth. Sub-bridge bodies are fixedly mounted on opposite sides of the two crowns. The two sub-bridge bodies are detachably and fixedly connected. A retention protrusion is fixedly mounted on the upper inclined surface of one of the sub-bridge bodies. A bridge connector is provided above the sub-bridge body. A retention groove is formed at the bottom of the bridge connector. The retention protrusion is adapted to the retention groove. The bridge connector is fixedly mounted to the sub-bridge body by being engaged in the retention groove through the retention protrusion.

[0006] Furthermore, a hollow groove is provided at the bottom of the crown, and the upper part of the abutment tooth is fixedly bonded to the hollow groove by an adhesive.

[0007] Furthermore, a retaining ring is fixedly provided on the front and rear sides of the end of the sub-bridge body away from the crown body. The retaining ring is a cylindrical structure. The four retaining rings on the two sub-bridge bodies are arranged in an overlapping manner. The inner side of the retaining ring is provided with a thread. A connecting bolt is passed through the four retaining rings. The connecting bolt is threaded with the retaining ring.

[0008] Furthermore, the connecting bolt has a screw-like structure, and the connecting bolt includes a threaded rod and a screw head. The threaded rod is fixedly connected to the screw head, and a locking hole is provided at the end of the screw head away from the threaded rod. The locking hole is square in shape.

[0009] Furthermore, the crown includes a base layer, an outer anti-corrosion layer is fixedly disposed on the outer side of the base layer, an inner anti-corrosion layer is fixedly disposed on the inner side of the base layer, and the side of the inner anti-corrosion layer away from the base layer is polished to form a smooth layer.

[0010] Furthermore, the sub-bridge body is a solid triangular structure, the base layer is made of titanium alloy, and both the outer and inner anti-corrosion layers are titanium dioxide oxide films.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This invention utilizes a structure including retention rings to sequentially install two crowns onto the abutment teeth on both sides. The upper part of the abutment teeth is fixedly glued into the hollow groove with adhesive. Sub-bridges are fixedly installed on opposite sides of the crowns of the two retention bodies. The retention rings of the two sub-bridges are cross-concentrically aligned. Connecting bolts are inserted into the four retention rings, and the two sub-bridges are fixedly connected by tightening the connecting bolts. The bridge connector is placed on top of the sub-bridges, and the bridge connector is fixed to the sub-bridges by engaging the retention protrusion into the retention groove. This completes the installation of the entire restoration and restores the patient's chewing function.

[0013] 2. The two sub-bridges of this utility model restoration are independently designed, which makes it easy to install the two crowns onto the abutment teeth on both sides respectively, and then fix the two sub-bridges together by tightening the connecting bolts, avoiding excessive grinding or repair of the abutment teeth and reducing damage to the patient's teeth.

[0014] 3. This utility model improves the corrosion resistance of the crown surface by setting an outer anti-corrosion layer and an inner anti-corrosion layer, both of which are titanium dioxide oxide films. By grinding the side of the inner anti-corrosion layer away from the base layer to form a smooth layer, the inside of the hollow groove is smooth, which makes it easy to insert and install the abutment tooth in the hollow groove. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is the front view provided by this utility model;

[0017] Figure 2 This is a sectional view provided by this utility model;

[0018] Figure 3 This is a partial top view of the connection between the two sub-bridges provided by this utility model;

[0019] Figure 4 This is a top sectional view of the screw head provided by this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the crown provided by this utility model;

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Bridge body connector; 2. Retention groove; 3. Crown body; 31. Outer anti-corrosion layer; 32. Base layer; 33. Inner anti-corrosion layer; 34. Smooth layer; 4. Hollow groove; 5. Abutment tooth; 6. Sub-bridge body; 7. Retention ring; 8. Retention protrusion; 9. Threaded rod; 10. Threaded head; 11. Locking hole; 12. Retention body; 13. Connecting bolt. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] Please see Figure 1-5A splice-type fixed bridge restoration includes two retainers 12, each consisting of an abutment tooth 5 and a crown 3. The crown 3 is mounted on the abutment tooth 5, and a hollow groove 4 is formed at the bottom of the crown 3. The upper part of the abutment tooth 5 is fixedly bonded to the hollow groove 4 with an adhesive. The two crowns 3 are then sequentially mounted onto the abutment teeth 5 on both sides, and the upper part of the abutment tooth 5 is fixedly bonded to the hollow groove 4 with an adhesive. The adhesive material can be zinc oxide, zinc phosphate, zinc polycarboxylate, glass ionomer, composite glass ionomer, resin, ionomer resin, etc.

[0026] Two sub-bridge bodies 6 are fixedly installed on opposite sides of the two crown bodies 3. The sub-bridge bodies 6 are solid triangular structures. The two sub-bridge bodies 6 are detachably fixedly connected. Retention rings 7 are fixedly installed on the front and rear sides of the end of the sub-bridge body 6 away from the crown body 3. The retention rings 7 are cylindrical structures. The four retention rings 7 on the two sub-bridge bodies 6 are arranged in a cross-over pattern. The inner side of the retention rings 7 is provided with threads. A connecting bolt 13 passes through the four retention rings 7. The connecting bolt 13 is threaded with the retention rings 7. The retention rings 7 of the two sub-bridge bodies 6 are cross-over concentrically overlapped. The connecting bolt 13 is inserted into the four retention rings 7. The two sub-bridge bodies 6 are fixedly connected by tightening the connecting bolt 13.

[0027] One of the sub-bridge bodies 6 has a retention protrusion 8 fixedly installed on the upper inclined surface. A bridge connector 1 is installed above the sub-bridge body 6. A retention groove 2 is opened at the bottom of the bridge connector 1. The retention protrusion 8 is adapted to the retention groove 2. The bridge connector 1 is installed and fixed to the sub-bridge body 6 by the retention protrusion 8 being engaged in the retention groove 2. The bridge connector 1 is placed on top of the sub-bridge body 6 and engaged in the retention groove 2 by the retention protrusion 8, thus installing and fixing the bridge connector 1 to the sub-bridge body 6, completing the installation of the entire restoration and restoring the patient's chewing function. The two sub-bridge bodies 6 are set independently, which makes it convenient to install the two crowns 3 onto the abutment teeth 5 on both sides respectively. Then, the two sub-bridge bodies 6 are fixedly connected by tightening the connecting plug 13, avoiding excessive grinding or repair of the abutment teeth and reducing damage to the patient's teeth.

[0028] As an improvement to the above technical solution, the connecting bolt 13 has a screw-like structure. The connecting bolt 13 includes a threaded rod 9 and a screw head 10. The threaded rod 9 is fixedly connected to the screw head 10. A locking hole 11 is provided at the end of the screw head 10 away from the threaded rod 9. The locking hole 11 is square in shape. The locking hole 11 facilitates the insertion of tools, thereby realizing the tightening or loosening operation of the connecting bolt 13.

[0029] As an improvement to the above technical solution, the crown 3 includes a base layer 32, which is made of titanium alloy. An outer anti-corrosion layer 31 is fixedly provided on the outer side of the base layer 32, and an inner anti-corrosion layer 33 is fixedly provided on the inner side of the base layer 32. Both the outer anti-corrosion layer 31 and the inner anti-corrosion layer 33 are titanium dioxide oxide films, which improves the corrosion resistance of the surface of the crown 3. The side of the inner anti-corrosion layer 33 away from the base layer 32 is polished to form a smooth layer 34, which makes the inside of the hollow groove 4 smooth, making it easy to insert and install the abutment tooth 5 into the hollow groove 4.

[0030] The working principle and usage of this utility model:

[0031] In use, the two crowns 3 are sequentially installed onto the abutment teeth 5 on both sides. The upper part of the abutment teeth 5 is fixedly glued into the hollow groove 4. Sub-bridge bodies 6 are fixed on opposite sides of the crowns 3 of the two retainers 12. The retention rings 7 of the two sub-bridge bodies 6 are cross-concentrically aligned. The connecting bolts 13 are inserted into the four retention rings 7. The two sub-bridge bodies 6 are fixedly connected by tightening the connecting bolts 13. The bridge connector 1 is placed on top of the sub-bridge bodies 6 and is engaged into the retention groove 2 by the retention protrusion 8. The bridge connector 1 and the sub-bridge bodies 6 are then installed and fixed, completing the installation of the entire restoration and restoring the patient's oral cavity. The two sub-bridges 6 are independently designed for chewing function, making it easy to install the two crowns 3 onto the abutment teeth 5 on both sides. The two sub-bridges 6 are then fixedly connected by tightening the connecting bolts 13, avoiding excessive grinding or repair of the abutment teeth and reducing damage to the patient's teeth. The outer anti-corrosion layer 31 and the inner anti-corrosion layer 33 are both titanium dioxide oxide films, which improve the corrosion resistance of the crown surface 3. By polishing the side of the inner anti-corrosion layer 33 away from the base layer 32 to form a smooth layer 34, the inside of the hollow groove 4 is smooth, making it easy to insert the abutment teeth 5 into the hollow groove 4.

[0032] 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 spliced ​​fixed bridge repair, characterized in that: The device includes a retainer (12), and two retainers (12) are provided. The retainer (12) includes an abutment tooth (5) and a crown (3). The crown (3) is installed on the abutment tooth (5). A sub-bridge body (6) is fixedly provided on the opposite side of the two crown bodies (3). The two sub-bridge bodies (6) are detachably and fixedly connected. A retaining protrusion (8) is fixedly provided on the upper inclined surface of one of the sub-bridge bodies (6). A bridge body connector (1) is provided above the sub-bridge body (6). A retaining groove (2) is provided at the bottom of the bridge body connector (1). The retaining protrusion (8) is adapted to the retaining groove (2). The bridge body connector (1) is fixedly installed and fixed to the sub-bridge body (6) by being held in the retaining groove (2) by the retaining protrusion (8).

2. The spliced ​​fixed bridge repair body according to claim 1, characterized in that: The bottom of the crown (3) is provided with a hollow groove (4), and the upper part of the abutment tooth (5) is fixedly attached to the hollow groove (4) by adhesive.

3. The spliced ​​fixed bridge repair body according to claim 1, characterized in that: The sub-bridge body (6) is fixedly provided with retaining rings (7) on the front and rear sides of the end away from the crown body (3). The retaining rings (7) are cylindrical structures. The four retaining rings (7) on the two sub-bridge bodies (6) are arranged in a cross-over manner. The inner side of the retaining rings (7) is provided with threads. A connecting bolt (13) is passed through the four retaining rings (7). The connecting bolt (13) is threadedly engaged with the retaining rings (7).

4. The spliced ​​fixed bridge repair body according to claim 3, characterized in that: The connecting bolt (13) has a screw-like structure. The connecting bolt (13) includes a threaded rod (9) and a screw head (10). The threaded rod (9) and the screw head (10) are fixedly connected. A locking hole (11) is provided at the end of the screw head (10) away from the threaded rod (9). The locking hole (11) is square.

5. The spliced ​​fixed bridge repair according to claim 4, characterized in that: The crown (3) includes a base layer (32), an outer anti-corrosion layer (31) is fixedly provided on the outer side of the base layer (32), an inner anti-corrosion layer (33) is fixedly provided on the inner side of the base layer (32), and the side of the inner anti-corrosion layer (33) away from the base layer (32) is polished to form a smooth layer (34).

6. The spliced ​​fixed bridge repair according to claim 5, characterized in that: The sub-bridge body (6) is a solid triangular structure, the base layer (32) is made of titanium alloy, and the outer anti-corrosion layer (31) and the inner anti-corrosion layer (33) are both titanium dioxide oxide films.

Images