Multifunctional protective mouthpiece for perioperative period

Abstract

The application discloses a multifunctional protective mouthpiece for a perioperative period, which comprises a fixing sleeve, connecting steel wires, a mouthpiece positioning cord and a rubber sleeve; the fixing sleeve is movably sleeved on the outside of a tooth to be fixed, and a tooth positioning air bag is arranged in the fixing sleeve and used for fixing the tooth to be fixed; the connecting steel wires are installed on the fixing sleeve through steel wire buckles on the fixing sleeve; the mouthpiece positioning cord is arranged at both ends of the fixing sleeve through a positioning cord installation mechanism on the fixing sleeve and is used in cooperation with the tooth of a patient; the rubber sleeve is sleeved at an opening at the lower end of the fixing sleeve; the mouthpiece can effectively fix the tooth to be fixed in the perioperative period, so that the tooth to be fixed is prevented from being knocked off due to oral operation, tooth shaking is effectively avoided, and the problem of gum bleeding is avoided, and the mouthpiece has the characteristics of good fixing effect, simple and convenient use and high fixing safety.

Description

Technical Field

[0001] This invention relates to the field of oral medical device technology, specifically to a multifunctional protective dental crown for perioperative use. Background Technology

[0002] The perioperative period encompasses the entire surgical process, from the patient's decision to undergo surgery until basic recovery. It includes the preoperative, intraoperative, and postoperative periods, specifically from the confirmation of surgical treatment until the completion of related treatments, lasting approximately 5-7 days preoperatively to 7-12 days postoperatively. In elderly patients, dental problems may lead to surgical delays, disrupting the normal surgical procedure and increasing hospital stay and costs. Clinically, patients with significant tooth mobility often face multiple risks, such as:

[0003] 1. There is a possibility that during the surgical procedure, the endotracheal tube may knock out a tooth, and the dislodged tooth may fall into the trachea and cause the patient to suffocate.

[0004] 2. During the surgery, oral manipulation may knock out the patient's loose teeth. After the teeth are knocked out, bleeding increases, which may cause the patient to choke, suffocate, or develop respiratory infections.

[0005] 3. If a loose tooth is extracted before the operation, some patients will disagree, and some diabetic patients are contraindicated to extraction.

[0006] Therefore, during the perioperative period, it is necessary to stabilize the patient's teeth to ensure they do not fall out during the procedure and to prevent bleeding from the tooth roots. While there are many styles of braces on the market, most are designed for orthodontic treatment and tooth shaping. For example, patent number CN202110396620.1 discloses a multifunctional orthodontic brace comprising an upper and lower brace. The lower brace is made of a soft polymer material. The upper brace includes a soft body and an outer hard layer covering it. The soft body is also made of a soft polymer material. Each side of the soft body has a receiving cavity, with an electromagnet in one cavity and a permanent magnet in the other. The openings of both cavities are equipped with magnetic plates fixedly connected to the electromagnet / permanent magnet. A soft layer covers the magnetic plates. A controller cavity is located at one end of the soft layer, containing a controller and a battery. The output of the device is connected to a control switch that is electrically connected to the battery and electromagnet; it is a multifunctional orthodontic appliance that avoids wear on the upper and lower braces when biting, and can automatically change the squeezing force between the teeth and the braces according to the pressure value of the teeth and the braces to improve wearing comfort; Patent No. CN115252179A discloses an adjustable invisible orthodontic appliance, including a brace body with an alveolar groove, the brace body including a brace layer and a solid-liquid conversion layer filled in the brace layer, the brace layer being made of plastic insulating material, a control device for controlling the solid-liquid conversion layer being provided on the outer wall of the brace body, and several protrusions being provided on the side of the outer and inner walls of the brace body near the alveolar groove, the protrusions on the outer wall of the brace body being opposite to the protrusions on the inner wall of the brace body, and magnets of opposite polarity being provided in the protrusions on the outer wall of the brace body and the protrusions on the inner wall of the brace body. This invention can adjust the shape to soft and then hard according to the tooth movement during orthodontic treatment. The shape can be adjusted at any time as the orthodontic treatment progresses. The function of invisible orthodontics can be achieved with one set of braces, effectively avoiding waste and wear and tear, and is convenient to use. However, since the above-mentioned multifunctional orthodontic braces and aligners are integral structures, they need to be put on the gums as a whole during use, and cannot be fixed to the patient's loose teeth as needed. After use, it is not possible to fix the patient's loose teeth in a localized manner. It is inconvenient to use during the surgical maintenance period, and it affects the patient's mouth opening degree after use, making the later surgical operation difficult. Therefore, the above-mentioned orthodontic braces and aligners cannot be directly used for tooth fixation during the perioperative period.

[0007] To address the above issues, there is an urgent need to design a multifunctional protective dental crown specifically for perioperative use, in order to solve the problems existing in the current technology. Summary of the Invention

[0008] To address the aforementioned problems, this invention aims to provide a multifunctional protective dental crown for perioperative use. This crown, through the design of a fixing sleeve, connecting wires, a positioning cable, a tooth positioning airbag, a positioning cable installation mechanism, and an arc adjustment mechanism, effectively secures the teeth to be fixed during the perioperative period, preventing them from being dislodged during oral procedures. It also effectively prevents tooth movement, thereby avoiding gum bleeding. It features excellent fixation, ease of use, and high fixation safety.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0010] A multifunctional protective dental crown for perioperative use includes a fixing sleeve, connecting wires, a dental crown positioning cable, and a rubber sleeve;

[0011] The fixing sleeve is movably fitted on the outside of the tooth to be fixed, and a tooth positioning airbag and the tooth to be fixed are provided inside the fixing sleeve.

[0012] The connecting steel wire is installed on the fixing sleeve through the steel wire buckle on the fixing sleeve;

[0013] The positioning cable of the braces is set at both ends of the fixed sleeve through the positioning cable installation mechanism on the fixed sleeve and is used in conjunction with the patient's teeth;

[0014] The rubber sleeve is fitted onto the lower opening of the fixed sleeve.

[0015] Preferably, the fixing sleeve is a U-shaped sleeve structure, and the fixing sleeve is provided with a wire groove, a tooth gap clearance groove and a movable installation groove;

[0016] The wire slots are symmetrically arranged on the front and rear sides of the fixing sleeve and are used in conjunction with the connecting wires. The wire slots are also provided with interconnected wire buckle slots that are used in conjunction with the wire buckles.

[0017] The tooth gap clearance grooves are symmetrically arranged on the left and right sides of the fixing sleeve;

[0018] The movable mounting slots are symmetrically opened on the fixed sleeve and are used in conjunction with the positioning bladder plate set on the outside of the tooth positioning airbag.

[0019] Preferably, the inner side of the tooth positioning airbag is further provided with a tooth positioning groove for use with the tooth to be fixed, and an inflation port is also provided on the tooth positioning airbag.

[0020] Preferably, the positioning cable installation mechanism includes an adjusting screw, a movable block, and a positioning cable connector;

[0021] The adjusting screw is rotatably mounted in the movable mounting slot via a bearing.

[0022] The movable block is set in the movable mounting slot and is screwed to the movable block;

[0023] The positioning cable connector is rotatably mounted on the movable block via a pin and a torsion spring, and is used in conjunction with the angle adjustment component mounted on the movable block.

[0024] Preferably, the angle adjustment assembly is disposed on the rear side plate of the movable block and includes a bidirectional screw, a screw block, a hinge rod, and a top block;

[0025] The bidirectional screw is rotatably mounted on the rear side plate via a bearing;

[0026] The screw block is movably disposed in the adjustment groove on the rear side plate and is screwed to the bidirectional screw.

[0027] One end of the hinge rod is hinged to the screw block, and the other end is hinged to the top block;

[0028] The top block is used in conjunction with the positioning cable connector.

[0029] Preferably, the positioning cable connector is further provided with a positioning lock hole for use with the dental brace positioning cable, and a threaded pressing member is also provided offset on the positioning cable connector. The threaded pressing member is screwed onto the positioning cable connector and is used in conjunction with the clearance groove provided on the positioning cable connector.

[0030] Preferably, the brace positioning cable includes several flexible strips and a caliper.

[0031] The flexible cable is provided with screw rods and screw grooves at both ends for use;

[0032] The clasp has a tapered structure and is screwed to the screw rod.

[0033] Preferably, an arc adjustment mechanism is also installed on the connecting steel wire between two adjacent fixed sleeves, the arc adjustment mechanism including an arc adjustment steel plate and a screw-in adjustment component;

[0034] The arc adjustment steel plate is a steel plate with an arc, and connecting plates are symmetrically arranged on the inner side of the arc adjustment steel plate.

[0035] The screw-in adjusting component is rotatably mounted on the connecting plate via a bearing and is screwed to the connecting steel wire.

[0036] The beneficial effects of this invention are: This invention discloses a multifunctional protective dental crown for perioperative use. Compared with the prior art, the improvement of this invention lies in:

[0037] This invention designs a multifunctional protective dental crown for perioperative use, comprising a fixing sleeve, connecting wires, a dental crown positioning cable, and a rubber sleeve. In use:

[0038] 1. Through the structural design of the fixation sleeve, it can be effectively fitted on the outside of the tooth to be fixed, and the tooth positioning airbag is inflated to flexibly wrap and position the tooth to be fixed, effectively forming a whole with the fixation sleeve and the tooth to be fixed, ensuring the fixation effect of the tooth to be fixed and the safety of the perioperative surgery.

[0039] 2. Through the design of connecting steel wires, multiple fixation sleeves can be connected, so that they can be fixed independently or in a band-like manner, to complete the joint fixation of one or more teeth to be fixed, avoiding the teeth from falling out during surgery, and effectively reducing the patient's pain through one-time fixation;

[0040] 3. The design of the brace positioning cable allows it to be used in conjunction with the patient's effective teeth to fix the brace, ensuring the fixation effect on the teeth to be fixed. When removing it, simply rotate the clasp to loosen the flexible cable and remove the protective brace. It is simple and convenient to use.

[0041] 4. The rubber sleeve design separates the fixing sleeve from the patient's gums and tongue coating during use, protecting the patient's tongue coating and gums and effectively preventing scratches to the patient's tongue coating and gums;

[0042] 5. Through the design of the positioning cable installation mechanism, the tilt position of the positioning cable connector can be adjusted according to the shape and location of the tooth to be fixed and its relative position and shape relationship with the effective tooth during use. This allows the positioning cable of the braces to fully contact the effective tooth, ensuring the fixation effect and preventing it from being suspended and scratching the patient's oral tissue.

[0043] 6. The design of the curvature adjustment mechanism allows for adjustment of the relative curvature between the two adjustment and fixing sleeves, making it suitable for fixing adjacent teeth at different positions. This further ensures the applicability and effectiveness of the protective dental crown, which has the advantages of good fixation effect, simple and convenient use, and high fixation safety. Attached Figure Description

[0044] Figure 1 This is a diagram illustrating the effect of using the multifunctional protective dental brace of this invention.

[0045] Figure 2 This is a schematic diagram of the structure of the multifunctional protective dental brace of the present invention.

[0046] Figure 3 This is an exploded view of the multifunctional protective dental brace of the present invention.

[0047] Figure 4 This is a schematic diagram of the structure of the fixing sleeve of the present invention.

[0048] Figure 5This is a schematic diagram of the tooth positioning airbag of the present invention.

[0049] Figure 6 This is a partial enlarged view of the fixing sleeve A of the present invention.

[0050] Figure 7 This is a schematic diagram of the positioning cable installation mechanism of the present invention.

[0051] Figure 8 This is a cross-sectional view of the positioning cable installation mechanism 1-1 of the present invention.

[0052] Figure 9 This is a cross-sectional view of the positioning cable installation mechanism 2-2 of the present invention.

[0053] Figure 10 This is an exploded view of the brace positioning cable of the present invention.

[0054] Figure 11 This is a schematic diagram of the structure of the multifunctional protective dental crown with two fixing sleeves according to the present invention.

[0055] Figure 12 This is a schematic diagram of the arc adjustment mechanism of the present invention.

[0056] The components are: 1. Fixed sleeve, 11. Wire groove, 12. Wire buckle groove, 13. Gap clearance groove, 14. Movable mounting groove, 2. Connecting wire, 3. Gap positioning cable, 31. Flexible cable, 311. Threaded rod, 312. Threaded groove, 32. Taper, 4. Rubber sleeve, 5. Positioning cable installation mechanism, 51. Adjusting screw, 52. Movable block, 53. Rear side plate, 54. Positioning cable connector, 541. Positioning lock hole, 542. 55. Leaving groove, 56. Pin, 57. Torsion spring, 58. Angle adjustment assembly, 591. Bidirectional screw, 502. Screw block, 513. Hinge rod, 524. Top block, 53. Threaded pressing component, 6. Steel wire thread, 70. Tooth positioning airbag, 71. Positioning bladder plate, 72. Inflation port, 73. Tooth positioning groove, 8. Tooth to be fixed, 91. Curvature adjustment mechanism, 92. Curvature adjustment steel plate, 93. Connecting plate, 94. Screw adjustment component. Detailed Implementation

[0057] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0058] Example 1: Refer to Appendix Figure 1-12 The illustrated perioperative multifunctional protective dental crown includes a fixing sleeve 1, a connecting wire 2, a dental crown positioning cable 3, and a rubber sleeve 4; wherein

[0059] The fixing sleeve 1 is movably sleeved on the outside of the tooth 8 to be fixed, and a tooth positioning airbag 7 is provided inside the fixing sleeve 1 to work with the tooth 8 to be fixed. When in use, the tooth positioning airbag 7 is inflated to fix the tooth 8 to be fixed.

[0060] The connecting steel wire 2 is installed on the fixing sleeve 1 through the steel wire buckle 6 on the fixing sleeve 1, connecting two adjacent fixing sleeves 1 so that it can fix multiple loose teeth at the same time.

[0061] The braces positioning cable 3 is installed at both ends of the fixed sleeve 1 through the positioning cable installation mechanism 5 on the fixed sleeve 1, and is used in conjunction with the patient's teeth to fix the position of the fixed sleeve 1.

[0062] The rubber sleeve 4 is fitted onto the lower opening of the fixed sleeve 1 to protect the patient's tongue and gums during use, preventing them from being scratched.

[0063] Preferably, to facilitate the placement of the fixing sleeve 1 on the outside of the patient's tooth 8 to be fixed during use, the fixing sleeve 1 is designed as a U-shaped sleeve structure, and is provided with a wire groove 11, a tooth gap clearance groove 13, and a movable mounting groove 14; wherein

[0064] The wire slots 11 are symmetrically arranged on the front and rear sides of the fixing sleeve 1 and are used in conjunction with the connecting wire 2. They are used to lock the connecting wire 2 in the wire slots 11 during use, so as to prevent the connecting wire 2 from being exposed and affecting the patient's use. In addition, the wire slots 11 are also provided with interconnected wire buckle slots 12, which are used in conjunction with wire buckles 6. They are used to install the wire buckles 6 in the wire buckle slots 12 during use, so as to install and fix the connecting wire 2.

[0065] The tooth gap clearance groove 13 is symmetrically arranged on the left and right sides of the fixing sleeve 1. It plays a clearance role when the fixing sleeve 1 is installed, making room for the tooth gap so that it can be easily inserted into the patient's tooth 8 to be fixed.

[0066] The movable mounting slots 14 are symmetrically opened on the fixed sleeve 1 for installing the positioning cable mounting mechanism 5. They are used in conjunction with the positioning bladder 71 located on the outside of the tooth positioning airbag 7, so that the positioning bladder 71 expands when inflated, and the squeezing action between the positioning bladder 71 and the adjacent teeth plays a preliminary positioning role for the tooth 8 to be fixed.

[0067] Preferably, to facilitate the fixation of the tooth 8 to be fixed by the expansion of the tooth positioning airbag 7 during use, a tooth positioning groove 73 is also provided inside the tooth positioning airbag 7 to cooperate with the tooth 8 to be fixed and fix the tooth 8; at the same time, to facilitate the inflation of the tooth positioning airbag 7, an inflation port 72 is also provided on the tooth positioning airbag 7, and inflation is performed into the tooth positioning airbag 7 through the inflation port 72 during use.

[0068] Preferably, for ease of connection and fixation, an external thread is provided on the connecting steel wire 2 to cooperate with the steel wire buckle 6.

[0069] The usage process and operating principle of the perioperative multifunctional protective dental brace described in this embodiment include:

[0070] First, select different numbers of fixation sleeves 1 according to the required number of adjacent teeth 8 to be fixed. Then, install the positioning cable 3 on the fixation sleeve 1 through the positioning cable installation mechanism 5. After installation, use dental forceps to install this fixation structure on the teeth 8 to be fixed in the patient's mouth, so that the positioning cable 3 contacts the surface of the adjacent teeth to fix the fixation sleeve 1, ensuring the fixation effect of the fixation sleeve 1 on the teeth 8 to be fixed. Finally, pressurize the tooth positioning airbag 7 through the air inlet 72, so that the tooth positioning airbag 7 can further position the teeth 8 to be fixed in the fixation sleeve 1. At the same time, the expansion of the positioning bladder 71 of the tooth positioning airbag 7 during the pressurization process compresses the adjacent teeth, further positioning the spatial position of the teeth 8 to be fixed, thereby completing the fixation of the teeth 8 to be fixed during the perioperative period, so as to prevent the teeth 8 to be fixed from being knocked out due to oral operation, and effectively avoid tooth movement, thus avoiding the problem of gum bleeding.

[0071] Example 2: Unlike Example 1, since teeth are not regularly shaped, to ensure the contact surface between the adjusting brace positioning cable 3 and the effective teeth (fixed teeth) beside the tooth 8 to be fixed during use, the positioning cable installation mechanism 5 is designed to include an adjusting screw 51, a movable block 52, and a positioning cable connector 54; wherein...

[0072] The adjusting screw 51 is rotatably mounted in the movable mounting slot 14 via a bearing;

[0073] The movable block 52 is movably installed in the movable mounting slot 14 and is screwed to the movable block 52. During use, the height of the movable block 52 can be adjusted by rotating the adjusting screw 51 so that it can be adapted to teeth of different sizes.

[0074] The positioning cable connector 54 is rotatably mounted on the movable block 52 via a pin 55 and a torsion spring 56, and is used in conjunction with the angle adjustment component 57 provided on the movable block 52 to adjust the tilt angle of the positioning cable connector 54. The positioning cable connector 54 is also connected to the brace positioning cable 3.

[0075] Preferably, to facilitate adjustment of the tilt angle of the positioning cable connector 54 during use, and to ensure the contact surface between the dental positioning cable 3 and the effective tooth (fixed tooth) beside the tooth 8 to be fixed, the angle adjustment component 57 is designed to be mounted on the rear plate 53 of the movable block 52, including a bidirectional screw 571, a screw block 572, a hinge rod 573, and a top block 574; wherein

[0076] The bidirectional screw 571 is rotatably mounted on the rear side plate 53 via a bearing;

[0077] The screw block 572 is movably installed in the adjustment groove 531 on the rear side plate 53 and is screwed to the bidirectional screw 571. The two screw blocks 572 can be adjusted to move towards each other or away from each other by rotating the bidirectional screw 571.

[0078] One end of the hinge rod 573 is hinged to the screw block 572, and the other end is hinged to the top block 574;

[0079] The top block 574 is used in conjunction with the positioning cable connector 54. During use, the relative distance between the two screw blocks 572 is adjusted by rotating the bidirectional screw 571, so that the top block 574 rests on the positioning cable connector 54 to adjust the connection tilt of the positioning cable connector 54.

[0080] Preferably, to facilitate the connection of the end of the braces positioning cable 3 to the positioning cable connector 54, a positioning locking hole 541 is also provided on the positioning cable connector 54. This facilitates the insertion of the end of the braces positioning cable 3 during use. In order to fix the position of the braces positioning cable 3 in the positioning locking hole 541 during use and prevent it from being pulled out when the braces positioning cable 3 is under force, a threaded pressing member 58 is also installed off-center on the positioning cable connector 54. The threaded pressing member 58 is screwed onto the positioning locking hole 541 and works in conjunction with the relief groove 542 provided on the positioning cable connector 54 to fix the braces positioning cable 3.

[0081] Preferably, to facilitate use with the patient's effective teeth (fixed teeth) to fix the fixation sleeve 1, the positioning cable 3 is designed to include several flexible cables 31 and clasps 32; wherein

[0082] The flexible cable 31 is provided with screw rods 311 and screw grooves 312 at both ends for use. In use, the length of the dental positioning cable 3 is increased by the connection between the screw rods 311 and the screw grooves 312.

[0083] The cone 32 has a conical structure and is screwed to the screw rod 311. When the flexible cable 31 is inserted into the tooth gap during use, the flexible cable 31 is tightened by rotating the cone 32 with tooth pliers to fix the fixing sleeve 1.

[0084] The usage process and operating principle of the brace positioning cable 3 and positioning cable installation mechanism 5 described in this embodiment include: First, based on the position of the tooth 8 to be fixed and the shape of the effective teeth near the tooth 8, the connection inclination of the positioning cable connector 54 is adjusted by rotating the bidirectional screw 571. After adjustment, the corresponding number of flexible cable sections 31 are selected according to the fixing requirements, and the flexible cable sections 31 are connected to form the brace positioning cable 3. Then, the fixing sleeve 1 is installed on the tooth 8 to be fixed. After the tooth positioning airbag 7 is inflated and positioned, the brace positioning cable 3 passes around the effective teeth, and the flexible cable 31 is tightened by rotating the caliper cone 32 with dental forceps, thus completing the fixing of the fixing sleeve 1.

[0085] Example 3: Unlike the above examples, in order to adjust the relative curvature between the two adjusting fixing sleeves 1 during use, so that it can be applied to the fixing of adjacent teeth 8 at different positions, a curvature adjustment mechanism 9 is also installed on the connecting steel wire 2 between the two adjacent fixing sleeves 1. The curvature adjustment mechanism 9 includes a curvature adjustment steel plate 91 and a screw-connected adjustment component 92; wherein

[0086] The arc adjustment steel plate 91 is a steel plate with an arc, and a connecting plate 911 is symmetrically arranged on the inner side of the arc adjustment steel plate 91.

[0087] The screw-on adjustment component 92 is rotatably mounted on the connecting plate 911 via a bearing and is screwed to the connecting steel wire 2. In use, the curvature of the arc adjustment steel plate 91 is adjusted by rotating the screw-on adjustment component 92, thereby adjusting the curvature of the connecting steel wire 2, so that the relative curvature between the two adjusting fixing sleeves 1 meets the fixing requirements between adjacent teeth 8 to be fixed, and the teeth 8 to be fixed are fixed.

[0088] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional protective dental crown for perioperative use, characterized in that: Includes a fixing sleeve, connecting steel wire, toothed positioning cable, and rubber sleeve; The fixing sleeve has a U-shaped sleeve structure and is movably fitted on the outside of the tooth to be fixed. The fixing sleeve is provided with a wire slot, a tooth gap clearance slot and a movable installation slot. A tooth positioning airbag is provided inside the fixing sleeve. A tooth positioning groove is provided on the inner side of the tooth positioning airbag to cooperate with the tooth to be fixed. A positioning bladder is provided on the outer side of the tooth positioning airbag. The positioning bladder cooperates with the movable installation slot. An inflation port is provided on the tooth positioning airbag. The wire slots are symmetrically arranged on the front and rear sides of the fixed sleeve, and the wire slots are provided with interconnected wire buckle slots; the connecting wire is clamped in the wire slot and fixed to the fixed sleeve by the wire buckle installed in the wire buckle slot; an arc adjustment mechanism is installed on the connecting wire between two adjacent fixed sleeves. The arc adjustment mechanism includes an arc adjustment steel plate and a screw-in adjustment component. The arc adjustment steel plate is a steel plate with an arc. A connecting plate is symmetrically arranged on the inner side of the arc adjustment steel plate. The screw-in adjustment component is rotatably mounted on the connecting plate through a bearing and is screwed to the connecting wire. The brace positioning cable is mounted at both ends of the fixed sleeve via a positioning cable installation mechanism on the fixed sleeve and is used in conjunction with the patient's teeth. The positioning cable installation mechanism includes an adjusting screw, a movable block, and a positioning cable connector. The adjusting screw is rotatably mounted in a movable mounting slot via a bearing. The movable block is mounted in the movable mounting slot and screwed to the adjusting screw. The positioning cable connector is rotatably mounted on the movable block via a pin and a torsion spring and is used in conjunction with an angle adjustment assembly mounted on the rear side plate of the movable block. The angle adjustment assembly includes a bidirectional screw, a threaded block, a hinge, and a top block. The bidirectional screw is rotatably mounted on the rear side plate via a bearing. The threaded block is movably mounted in an adjustment slot on the rear side plate and screwed to the bidirectional screw. One end of the hinge is hinged to the threaded block, and the other end is hinged to the top block. The top block is used in conjunction with the positioning cable connector. The positioning cable connector is provided with a positioning locking hole and a threaded pressing component is also offset on the positioning cable connector. The threaded pressing component is screwed to the positioning cable connector and is used in conjunction with a clearance groove on the positioning cable connector. The brace positioning cable includes several flexible cables and a locking cone. The two ends of the flexible cables are provided with a screw rod and a screw groove for cooperation. The locking cone has a conical structure and is screwed to the screw rod. The rubber sleeve is fitted onto the lower opening of the fixed sleeve.

2. The perioperative multifunctional protective dental crown according to claim 1, characterized in that: The tooth gap clearance grooves are symmetrically arranged on the left and right sides of the fixing sleeve.

3. The perioperative multifunctional protective dental crown according to claim 1, characterized in that: The retaining sleeve is made of an elastic material.

4. The perioperative multifunctional protective dental crown according to claim 1, characterized in that: The connecting steel wire is provided with external threads for use with the wire thread.

5. The perioperative multifunctional protective dental crown according to claim 1, characterized in that: The arc adjustment steel plate is made of a bendable metal material.

6. The perioperative multifunctional protective dental crown according to claim 1, characterized in that: The inner wall of the rubber sleeve is provided with anti-slip texture.

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