Periodontal surgery guide device
By designing a periodontal surgical guide device and utilizing the spacing adjustment mechanism between the support plate and the dental wax layer, the problem of tissue ischemia and swelling caused by traction on the wound edge in existing technologies has been solved, achieving a more stable and less invasive surgical procedure.
Patent Information
- Application Number
- CN202521983430.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-16
AI Technical Summary
In existing techniques, in order to fully expose the surgical area, it is necessary to use sutures or retractors to pull the wound edges on both sides, which leads to ischemia and swelling of the surrounding tissues and increases the trauma of the surgery.
A periodontal surgery guide device was designed, comprising symmetrically arranged support plates and dental wax layers. There is a spacing adjustment mechanism between the support plates, which can be adjusted by threaded rods and rotating tubes. The device fits the upper and lower jaws through the dental wax layers and is stabilized by tooth positioning components, thereby reducing tissue ischemia and swelling.
By adjusting the spacing between the support plates and the design of the dental wax layer, ischemia and swelling of the surrounding tissues are reduced, improving the stability of the surgery and reducing trauma.
Smart Images

Figure CN224671657U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of surgical guide technology, specifically relating to a periodontal surgical guide device. Background Technology
[0002] Minimally invasive periapical surgery is a common root canal surgery for treating pulpitis and periapical periodontitis. It is a procedure performed with the aid of a dental microscope and microsurgical instruments. The main steps include flap elevation, bone removal, periapical curettage, periapical resection, periapical preparation, periapical filling, and suturing.
[0003] In recent years, with the widespread clinical use of dental microscopes and the clinical application of microsurgical instruments, the operability of periapical surgery has been enhanced, and the effectiveness of periapical closure has been continuously improved, greatly increasing the success rate of periapical surgery. The use of dental microscopes and microsurgical instruments allows for more precise and minimally invasive procedures;
[0004] However, in order to expose the surgical area as fully as possible during surgery, it is necessary to use sutures or retractors to pull the wound edges on both sides. This inevitably leads to ischemia and swelling of the surrounding tissues, increasing the trauma of the surgery. Therefore, we propose a traction-type retractor for periapical surgery to solve the above-mentioned problems. Utility Model Content
[0005] (1) Technical problems to be solved
[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a periodontal surgical guide device. The periodontal surgical guide device aims to solve the technical problem that in order to fully expose the surgical area as much as possible, it is necessary to use silk thread or hooks to pull the wound edges on both sides, which inevitably leads to ischemia and swelling of the surrounding tissues and increases the trauma of the surgery.
[0007] (2) Technical solution
[0008] To address the aforementioned technical problems, this utility model provides a periodontal surgical guide device comprising symmetrically arranged support plates and dental wax layers bonded to the outside of the support plates. A spacing adjustment mechanism is installed between the two support plates. A tooth positioning component is embedded and fixed to the outside of the dental wax layer. The spacing adjustment mechanism includes a threaded rod integrally formed on the upper support plate and a rotating tube rotatably inserted into the lower support plate via a bearing. The bottom end of the threaded rod is threaded into the rotating tube, and a knob is fixedly sleeved on the top end of the rotating tube.
[0009] When using this technical solution, a spacing adjustment mechanism is provided between the two support plates. The dental wax layer on the two support plates fits against the upper and lower jaws, and the tooth positioning element on the dental wax layer is fitted onto the teeth. This keeps the two support plates stable with respect to the upper and lower teeth. A knob drives the rotating tube to rotate, and the threaded rod moves up and down within the rotating tube during rotation, thereby adjusting the spacing between the two support plates. The two support plates and the dental wax layer open the oral cavity, reducing ischemia and swelling of the surrounding tissues. A receiving groove is provided on the side wall of the dental wax layer. The positioning cone on the inner wall of the receiving groove, as well as the embedded part and protrusion on the two curved parts, increase the contact area and stability with the dental wax layer.
[0010] Preferably, a positioning mechanism is installed between the two support plates. The positioning mechanism includes a fixed rod and a sliding rod slidably inserted into the fixed rod. The fixed rod and the sliding rod are respectively fixed to the two support plates.
[0011] Furthermore, the outer wall of the support plate is provided with a receiving groove, and multiple positioning cones are bonded and fixed to the inner wall of the receiving groove.
[0012] Furthermore, the dental wax layer is embedded in the receiving groove, and the plurality of positioning cones are also embedded in the dental wax layer.
[0013] Furthermore, the tooth positioning component includes a tooth connection portion that is U-shaped and fitted onto the tooth, and curved portions integrally formed at both ends of the tooth connection portion, with an insert portion integrally formed on each of the two curved portions that is inserted into the dental wax layer.
[0014] Furthermore, a protruding plate is fixedly connected between the two embedded parts. The protruding plate is embedded in the dental wax layer, and a groove is formed at the center of the protruding plate.
[0015] Furthermore, the tooth positioning component includes a tooth connection part that is U-shaped and sleeved on the tooth, and curved parts integrally formed at both ends of the tooth connection part. The bottom end of the tooth connection part is bonded and fixed with an anti-detachment part.
[0016] (3) Beneficial effects
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] This invention features a spacing adjustment mechanism between two support plates. The dental wax layer on the two support plates fits against the upper and lower jaws, while the tooth positioning element on the dental wax layer is fitted onto the teeth. This stabilizes the two support plates relative to the upper and lower teeth. A knob drives a rotating tube to rotate, and the threaded rod moves up and down within the rotating tube during rotation, thereby adjusting the spacing between the two support plates. The two support plates and the dental wax layer open up the oral cavity, reducing ischemia and swelling of the surrounding tissues.
[0019] The presence of a receiving groove on the sidewall of the dental wax layer, along with the positioning cone on the inner wall of the receiving groove and the insert and protrusion on the two curved sections, increases the contact area and stability with the dental wax layer. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the internal structure of the support plate in this utility model;
[0023] Figure 3 This is a schematic diagram of the tooth positioning component in this utility model;
[0024] Figure 4 This utility model Figure 1 An enlarged schematic diagram of the structure at point A in the middle.
[0025] The labels in the attached diagram are as follows: 1. Support plate; 2. Dental wax layer; 3. Tooth positioning component; 4. Fixing rod; 5. Slide rod; 6. Positioning cone; 7. Receiving groove; 8. Tooth connection part; 9. Bend part; 10. Groove; 11. Protruding plate; 12. Embedded part; 13. Anti-dislodgement part; 14. Rotating tube; 15. Threaded rod; 16. Knob. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] This specific embodiment is a periodontal surgical guide device, the structural schematic diagram of which is shown below. Figures 1 to 4 As shown, the device includes a support plate 1 symmetrically arranged with a dental wax layer 2 bonded to the outside of the support plate 1. A spacing adjustment mechanism is installed between the two support plates 1. A tooth positioning component 3 is embedded and fixed on the outside of the dental wax layer 2. The spacing adjustment mechanism includes a threaded rod 15 integrally formed on the upper support plate 1 and a rotating tube 14 rotatably inserted into the lower support plate 1 via a bearing. The bottom end of the threaded rod 15 is threaded into the rotating tube 14, and a knob 16 is fixedly sleeved on the top end of the rotating tube 14. The dental wax layer 2 on the two support plates 1 fits against the upper and lower jaws, while the tooth positioning component 3 on the dental wax layer 2 is sleeved on the teeth, thereby stabilizing the two support plates 1 with the upper and lower teeth. The knob 16 drives the rotating tube 14 to rotate, and the threaded rod 15 rises and falls within the rotating tube 14 during rotation, thereby adjusting the spacing between the two support plates 1.
[0028] A positioning mechanism is installed between the two support plates 1. The positioning mechanism includes a fixed rod 4 and a sliding rod 5 that is slidably inserted into the fixed rod 4. The fixed rod 4 and the sliding rod 5 are respectively fixed to the two support plates 1. The outer wall of the support plate 1 is provided with a receiving groove 7. Multiple positioning cones 6 are bonded and fixed to the inner wall of the receiving groove 7. The dental wax layer 2 is embedded in the receiving groove 7. The multiple positioning cones 6 are all embedded in the dental wax layer 2. The positioning cones 6 on the inner wall of the receiving groove 7 increase the contact area and stability with the dental wax layer 2.
[0029] The tooth positioning component 3 includes a tooth connecting part 8 with a U-shaped structure that is fitted onto the tooth and curved parts 9 integrally formed at both ends of the tooth connecting part 8. Each of the two curved parts 9 has an embedded part 12 that is inserted into the dental wax layer 2. A protruding plate 11 is fixedly connected between the two embedded parts 12. The protruding plate 11 is embedded in the dental wax layer 2, and a groove 10 is provided at the center of the protruding plate 11. The tooth positioning component 3 includes a tooth connecting part 8 with a U-shaped structure that is fitted onto the tooth and curved parts 9 integrally formed at both ends of the tooth connecting part 8. An anti-detachment part 13 is bonded and fixed at the bottom end of the tooth connecting part 8. The embedded parts 12 and the protruding plate 11 on the two curved parts 9 increase the stability of the connection between the tooth positioning component 3 and the dental wax layer 2.
[0030] Working principle: When using the device of this technical solution, the dental wax layer 2 is preheated and then molded in the receiving groove 7. The embedding part 12 on multiple tooth positioning parts 3 is inserted into the dental wax layer 2 and fixed. Two support plates 1 are inserted into the oral cavity, and the dental wax layer 2 on the support plate 1 is in contact with the inner wall of the oral cavity. At the same time, the tooth connecting part 8 on the tooth positioning part 3 is fitted onto the teeth in the oral cavity. The anti-dislodgement part 13 is located on the outside of the teeth and positions the support plate 1. The knob 16 is held to drive the rotating tube 14 to rotate. During the rotation of the rotating tube 14, the threaded rod 15 rises and falls inside it, thereby adjusting the distance between the two support plates 1. The two support plates 1 and the dental wax layer 2 open the oral cavity, reducing the ischemia and swelling of the surrounding tissues.
[0031] All technical features in this embodiment can be freely combined according to actual needs.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A periodontal surgical guide device, characterized in that, The device includes a dental wax layer (2) symmetrically arranged on a support plate (1) and bonded to the outside of the support plate (1). A spacing adjustment mechanism is installed between the two support plates (1). A tooth positioning component (3) is embedded and fixed on the outside of the dental wax layer (2). The spacing adjustment mechanism includes a threaded rod (15) integrally formed on the upper support plate (1) and a rotating tube (14) rotatably inserted into the lower support plate (1) through a bearing. The bottom end of the threaded rod (15) is threaded into the rotating tube (14), and a knob (16) is fixedly sleeved on the top end of the rotating tube (14).
2. The periodontal surgical guide device according to claim 1, characterized in that, A positioning mechanism is installed between the two support plates (1). The positioning mechanism includes a fixed rod (4) and a sliding rod (5) that is slidably inserted into the fixed rod (4). The fixed rod (4) and the sliding rod (5) are respectively fixed to the two support plates (1).
3. The periodontal surgical guide device according to claim 1, characterized in that, The outer wall of the support plate (1) is provided with a receiving groove (7), and a plurality of positioning cones (6) are bonded and fixed to the inner wall of the receiving groove (7).
4. The periodontal surgical guide device according to claim 3, characterized in that, The dental wax layer (2) is embedded in the receiving groove (7), and the plurality of positioning cones (6) are also embedded in the dental wax layer (2).
5. A periodontal surgical guide device according to any one of claims 1-4, characterized in that, The tooth positioning component (3) includes a tooth connection part (8) in a U-shape that is fitted onto the tooth and a curved part (9) integrally formed at both ends of the tooth connection part (8). Each of the two curved parts (9) has an insert part (12) integrally formed into the dental wax layer (2).
6. A periodontal surgical guide device according to claim 5, characterized in that, A protruding plate (11) is fixedly connected between the two embedded parts (12). The protruding plate (11) is embedded in the dental wax layer (2), and a groove (10) is provided at the center of the protruding plate (11).
7. A periodontal surgical guide device according to any one of claims 1-4, characterized in that, The tooth positioning component (3) includes a tooth connection part (8) in a U-shape that is sleeved on the tooth and a curved part (9) integrally formed at both ends of the tooth connection part (8). The bottom end of the tooth connection part (8) is bonded and fixed with an anti-detachment part (13).