Occlusion recording device for intraoral scanning and modeling of patient with multiple tooth loss

Abstract

The invention relates to the technical field of medical instruments, in particular to an occlusion recording device for intraoral scanning and mold taking of a patient with multiple tooth loss, which comprises a bracket, a mold seat for adhering a silicon rubber mold is mounted on the bracket, the silicon rubber mold is used for performing occlusion recording on tooth loss, a pressing plate is rotatably arranged on the bracket, and the pressing plate is rotatably arranged on the bracket. A pressing frame penetrating through the bracket is fixed to the pressing plate, a bottom plate is fixed to the bottom of the bracket, a movable frame is arranged below the bracket and located on the inner side of the bottom plate, and first springs are connected between the four corners of the upper wall of the movable frame and the bottom wall of the bracket; the lower jaw teeth or the upper jaw teeth are automatically fixed when occlusion recording is carried out on the upper jaw teeth or the lower jaw teeth, a patient can be assisted to keep a stable and correct occlusion relation, and the operation is simple and convenient. And the silicone rubber mold is used for directly recording and transferring the jaw position relation and the tooth loss condition, so that the precision is high, the efficiency is high and the comfort level is high.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically to a bite registration device for intraoral scanning and impression taking of patients with multiple tooth loss. Background Art

[0002] During the intraoral scanning of patients with multiple tooth loss, obtaining a correct and stable occlusal relationship is of great significance, because:

[0003] 1) A stable occlusal relationship helps to ensure the accuracy of the scanning results. Only in a stable occlusal state can the true morphology of teeth, gums and surrounding soft tissues, as well as the accurate mandibular position, be accurately captured, so as to obtain a more refined three-dimensional model.

[0004] 2) A stable occlusal relationship can better reflect the functional state of the patient's oral cavity. This is crucial for subsequent restoration design, occlusal adjustment and treatment planning.

[0005] 3) If the occlusal relationship is unstable during scanning, it may lead to inaccurate fabrication of restorations, mismatched artificial tooth arrangements, causing problems such as temporomandibular joint problems, occlusal disorders, dysfunction or occlusal pain.

[0006] However, patients with multiple tooth loss often lack a stable occlusal relationship, which results in an inability to directly obtain a stable and correct bite registration during intraoral scanning. Existing clinical practices mostly use wax rims in the patient's mouth to record the jaw relationship and then transfer it to the printed model, which leads to complex repair processes, low efficiency, and the wax rims are prone to falling off the teeth, resulting in low accuracy, large errors and low comfort. Therefore, we propose a bite registration device for intraoral scanning and impression taking of patients with multiple tooth loss to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a bite registration device for intraoral scanning and impression taking of patients with multiple tooth loss. The bite registration device designed in this patent for intraoral scanning and impression taking of patients with multiple tooth loss can assist the patient to maintain a stable and correct occlusal relationship, directly record and transfer the jaw relationship through a silicone rubber mold, with high accuracy, high efficiency and high comfort. It will realize the full process of denture impression making and can be used to assist in intraoral impression taking for implant dentures, removable dentures and complete denture restorations of patients with multiple tooth loss. Therefore, we provide a bite registration device for intraoral scanning and impression taking of patients with multiple tooth loss to solve the problems raised in the above background art.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] An occlusal record device for intraoral scanning and impression taking for patients with multiple tooth loss, comprising a bracket, on which a mold base for adhering a silicone rubber mold is installed, the silicone rubber mold is used for occlusal recording of tooth loss, a pressing plate is rotatably arranged on the bracket, a pressing frame penetrating through the bracket is fixed on the pressing plate, a bottom plate is fixed at the bottom of the bracket, and a movable frame is arranged inside the bottom plate and below the bracket, and first springs are connected between the four corners of the upper wall of the movable frame and the bottom wall of the bracket;

[0010] When the pressing plate rotates, it will drive the pressing frame at the bottom of the pressing plate to squeeze the movable frame and drive it to move downward;

[0011] Swing arms are respectively hinged on both sides of the bracket, a limiting clip is fixed at the bottom end of the swing arm, the swing arm and the movable frame are connected and cooperated through a linkage structure, and when the movable frame moves downward, it will drive the swing arm to rotate to drive the limiting clip to rotate to both sides of the tooth to clamp and fix the tooth;

[0012] A telescopic component for driving the swing arm to rotate and reset is also arranged on the swing arm.

[0013] The occlusal record device for intraoral scanning and impression taking for patients with multiple tooth loss as described above: a through groove is opened on the bracket, and the pressing frame penetrates through the through groove.

[0014] The occlusal record device for intraoral scanning and impression taking for patients with multiple tooth loss as described above: an adhesive is adhered to the upper surface of the mold base, and the silicone rubber mold is fixedly adhered to the upper surface of the mold base through the adhesive.

[0015] The occlusal record device for intraoral scanning and impression taking for patients with multiple tooth loss as described above: the bottom cross-section of the bottom plate is arc-shaped, and a soft rubber layer is fixedly adhered to the lower surface of the bottom plate.

[0016] The occlusal record device for intraoral scanning and impression taking of patients with multiple tooth loss as described above: The linkage structure includes a fixed seat fixed on the bracket. A second connecting rod is inserted through the fixed seat. A pull rod is fixed on the movable frame and passes through the bracket. A first mounting frame and a second mounting frame are fixed on the bracket. A cam is rotatably arranged on the first mounting frame. A pressure rod is fixed on the cam. A fixed rod is fixed on the second mounting frame. A rotating frame is rotatably mounted on the second mounting frame. A second spring is connected between the pressure rod and the fixed rod. An articulated rod is arranged between the cam and the pull rod. The two ends of the articulated rod are respectively articulated with the cam and the pull rod. One end of the rotating frame is rotatably provided with a rotating wheel, and the other end is fixed with a first rectangular frame. A convex rod is fixed at one end of the second connecting rod and is movably clamped in the first rectangular frame. An activity groove is formed on the fixed seat. The second connecting rod passes through the activity groove. A first connecting rod is rotatably mounted on two swing arms. A second rectangular frame is fixed at one end of the second connecting rod and is movably sleeved on the first connecting rod.

[0017] The occlusal record device for intraoral scanning and impression taking of patients with multiple tooth loss as described above: The telescopic assembly includes a rectangular groove plate and a rectangular plate. The rectangular plate is movably clamped inside the rectangular groove plate. One end of the rectangular groove plate is articulated with a swing arm. One end of the rectangular plate is articulated with another swing arm. A rectangular groove is formed on the rectangular groove plate. A regulating rod is fixed on the rectangular plate and is located inside the rectangular groove.

[0018] The occlusal record device for intraoral scanning and impression taking of patients with multiple tooth loss as described above: A support rod is fixed on the bracket. A support seat is fixed on the support rod. The mold base is fixedly installed on the support seat.

[0019] The occlusal record device for intraoral scanning and impression taking of patients with multiple tooth loss as described above: A rotating rod is rotatably arranged on the support seat. The pressing plate is fixed on the rotating rod.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: A mold base is installed on the bracket, and a silicone rubber mold is adhered to the mold base. A swing arm and a limit clip are rotatably arranged on the bracket. When performing bite registration in the mouth of a patient with multiple missing teeth, the bracket is placed on the upper or lower teeth, and correspondingly, the upper or lower teeth are fixed by rotating and clamping the upper or lower teeth through the limit clip. Then, when performing bite registration in the mouth of a patient with multiple missing teeth, the upper and lower teeth of the patient bite. At this time, the silicone rubber mold on the mold base can cover the lower or upper teeth, and the silicone rubber mold deforms during biting before curing. After biting for a period of time, the silicone rubber mold cures, so as to record the tooth loss situation of the patient through the silicone rubber mold. By automatically fixing the lower or upper teeth when performing bite registration on the upper or lower teeth, it can assist the patient to maintain a stable and correct occlusion relationship, and directly record and transfer the jaw relationship and tooth loss situation through the silicone rubber mold, with high precision, high efficiency, and high comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. 6 is a schematic view of the overall structure of the bite registration device for intraoral scanning and impression taking of patients with multiple missing teeth from the first perspective.

[0022] Figure 2 FIG. 10 is a schematic view of the overall structure of the bite registration device for intraoral scanning and impression taking of patients with multiple missing teeth from the second perspective.

[0023] Figure 3 FIG. 14 is a schematic view of the overall structure of the mold base of the bite registration device for intraoral scanning and impression taking of patients with multiple missing teeth after decomposition.

[0024] Figure 4 FIG. 18 is a schematic view of the overall structure of the bite registration device for intraoral scanning and impression taking of patients with multiple missing teeth from the third perspective.

[0025] Figure 5 FIG. 22 is a schematic view of the overall structure of the bottom plate of the bite registration device for intraoral scanning and impression taking of patients with multiple missing teeth after decomposition.

[0026] Figure 6 FIG. 26 is a schematic view of the Figure 1 partial structure of the bite registration device for intraoral scanning and impression taking of patients with multiple missing teeth.

[0027] Figure 7 FIG. 32 is a schematic view of the linkage structure of the bite registration device for intraoral scanning and impression taking of patients with multiple missing teeth.

[0028] Figure 8 FIG. 36 is a schematic view of the telescopic assembly of the bite registration device for intraoral scanning and impression taking of patients with multiple missing teeth.

[0029] Figure 9Schematic structural diagram of an embodiment of an occlusion recording device for intraoral scanning and impression taking for patients with multiple tooth losses.

[0030] In the figure: 1, bracket; 2, mold base; 3, support; 4, support rod; 5, silicone rubber mold; 6, rotating rod; 7, pressing plate; 8, pressing frame; 9, bottom plate; 10, movable frame; 11, first spring; 12, swing arm; 13, limit clamp; 14, first connecting rod; 15, fixed seat; 16, second connecting rod; 17, pull rod; 18, cam; 19, pressing rod; 20, fixed rod; 21, second spring; 22, articulated rod; 23, rotating frame; 24, runner; 25, first rectangular frame; 26, convex rod; 27, movable groove; 28, second rectangular frame; 29, rectangular groove plate; 30, rectangular plate; 31, rectangular groove; 32, adjusting rod; 33, first mounting bracket; 34, second mounting bracket; 35, through groove. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Please refer to Figures 1 to 9 , as an embodiment of the present invention, an occlusion recording device for intraoral scanning and impression taking for patients with multiple tooth losses includes a bracket 1, on which a mold base 2 for adhering to the silicone rubber mold 5 is installed. The silicone rubber mold 5 is used for occlusion recording of tooth loss. A pressing plate 7 is rotatably provided on the bracket 1, and a pressing frame 8 penetrating the bracket 1 is fixed on the pressing plate 7. A bottom plate 9 is fixed at the bottom of the bracket 1. A movable frame 10 is provided inside the bottom plate 9 below the bracket 1. First springs 11 are connected between the four corners of the upper wall of the movable frame 10 and the bottom wall of the bracket 1;

[0033] When the pressing plate 7 rotates, it will drive the pressing frame 8 at the bottom of the pressing plate 7 to squeeze the movable frame 10 and drive it to move downward;

[0034] Swing arms 12 are respectively hinged on both sides of the bracket 1. A limit clamp 13 is fixed at the bottom end of the swing arm 12. The swing arm 12 and the movable frame 10 are connected through a linkage structure. When the movable frame 10 moves downward, it will drive the swing arm 12 to rotate to drive the limit clamp 13 to rotate to clamp and fix the teeth on both sides of the teeth;

[0035] A telescopic component for driving the swing arm 12 to rotate and reset is also provided on the swing arm 12.

[0036] In this embodiment, a die holder 2 is installed on the bracket 1. The die holder 2 is used for adhering the silicone rubber mold 5. A swing arm 12 and a limit clip 13 are rotatably arranged on the bracket 1. When performing an occlusion record on the oral cavity of a patient with multiple missing teeth, the bracket 1 is placed on the maxillary teeth or mandibular teeth. Correspondingly, the limit clip 13 is rotatably clamped on the maxillary teeth or mandibular teeth to fix the maxillary teeth or mandibular teeth. Further, when performing an occlusion record on the oral cavity of a patient with multiple missing teeth, when the patient's upper and lower teeth bite, it will squeeze the pressure plate 7 to one side and drive the pressure plate 7 to rotate, thereby driving the pressure frame 8 to rotate. While the pressure plate 7 rotates, it will drive the pressure frame 8 at the bottom of the pressure plate 7 to squeeze the movable frame 10 and drive it to move downward. While the movable frame 10 moves downward, it will drive the swing arm 12 to rotate to drive the limit clip 13 to rotate to clamp the teeth on both sides of the teeth. The silicone rubber mold 5 on the die holder 2 can cover the mandibular teeth or maxillary teeth, and the silicone rubber mold 5 deforms during occlusion before curing. After occluding for a period of time, the silicone rubber mold 5 cures, so as to record the tooth loss situation of the patient through the silicone rubber mold 5. The telescopic assembly can drive the swing arm 12 to rotate and reset, so as to drive the limit clip 13 to rotate and reset, thus facilitating the release of the fixation of the limit clip 13 on the teeth and facilitating the disassembly of the silicone rubber mold 5.

[0037] As a further solution of the present invention, a through groove 35 is opened on the bracket 1, and the pressure frame 8 is arranged through the through groove 35.

[0038] In this embodiment, by opening a through groove 35 on the bracket 1, the inner surface size of the through groove 35 is adapted to the outer surface size of the pressure frame 8. The through groove 35 can allow the pressure frame 8 to pass freely. Further, while the pressure plate 7 rotates, it will drive the pressure frame 8 at the bottom of the pressure plate 7 to rotate, and the pressure frame 8 can pass through the through groove 35 so that the pressure frame 8 can swing downward.

[0039] As a further solution of the present invention, an adhesive is adhered to the upper surface of the die holder 2, and the silicone rubber mold 5 is fixedly adhered to the upper surface of the die holder 2 through the adhesive.

[0040] In this embodiment, the silicone rubber mold 5 is fixedly adhered to the die holder 2, so as to fix the silicone rubber mold 5 through a plurality of die holders 2. The cooperation of the die holder 2 and the silicone rubber mold 5 can adapt to the use of silicone rubber molds 5 of different specifications, so that the size of the silicone rubber mold 5 can be customized according to the patient's oral cavity, with a wide range of applications. And the adhesion of the die holder 2 and the silicone rubber mold 5 facilitates the quick disassembly and assembly of the silicone rubber mold 5 from the die holder 2, improving the use convenience.

[0041] As a further solution of the present invention, the bottom section of the bottom plate 9 is arc-shaped, and a soft rubber layer is fixedly adhered to the lower surface of the bottom plate 9.

[0042] In this embodiment, the bottom plate 9 presses on the upper or lower teeth. The upper or lower teeth are fixed by the rotation and clamping of the limit clip 13 on both sides of the upper or lower teeth. The bottom cross-section of the bottom plate 9 is arc-shaped, which can better fit on the upper or lower teeth of the patient. The soft rubber layer improves the comfort when the upper and lower teeth bite, avoiding damage to the upper or lower teeth caused by the excessive hardness of the bottom plate 9.

[0043] As a further solution of the present invention, the linkage structure includes a fixed seat 15 fixed on the bracket 1. A second connecting rod 16 is inserted through the fixed seat 15. A pull rod 17 is fixed on the movable frame 10 and passes through the bracket 1. A first mounting bracket 33 and a second mounting bracket 34 are fixed on the bracket 1. A cam 18 is rotatably arranged on the first mounting bracket 33. A pressing rod 19 is fixed on the cam 18. A fixed rod 20 is fixed on the second mounting bracket 34. A second spring 21 is connected between the pressing rod 19 and the fixed rod 20. An articulated rod 22 is arranged between the cam 18 and the pull rod 17. Both ends of the articulated rod 22 are respectively articulated with the cam 18 and the pull rod 17. One end of the rotating frame 23 is rotatably provided with a runner 24, and the other end is fixed with a first rectangular frame 25. A convex rod 26 is fixed at one end of the second connecting rod 16 and is movably clamped in the first rectangular frame 25. An activity groove 27 is formed on the fixed seat 15, and the second connecting rod 16 passes through the activity groove 27. A first connecting rod 14 is rotatably installed on both swing arms 12. A second rectangular frame 28 is fixed at one end of the second connecting rod 16 and is movably sleeved on the first connecting rod 14.

[0044] In this embodiment, when taking an occlusion record in the mouth of a patient with multiple missing teeth, when the patient's upper and lower teeth occlude, it will squeeze the pressing plate 7 to one side, driving the pressing plate 7 to rotate, thereby driving the pressing frame 8 to rotate. While the pressing plate 7 rotates, it will drive the pressing frame 8 at the bottom of the pressing plate 7 to squeeze the movable frame 10, driving it to move downward. While the movable frame 10 moves downward, it will drive the pull rod 17 to move downward. While the pull rod 17 moves downward, it will pull one end of the cam 18 downward for dragging, thereby driving the cam 18 to rotate, and then driving the other end of the cam 18 to rotate. When the cam 18 swings to the vertical position, the elastic telescopic amount of the second spring 21 gradually increases. Until when it deflects beyond the maximum stretching length in the vertical position, the second spring 21 quickly contracts. Furthermore, using the elastic force of the second spring 21 to drive one end of the cam 18 to quickly deflect, thereby driving the pressing rod 19 at one end of the cam 18 to swing onto the runner 24 and squeeze the runner 24, thereby driving the runner 24 to rotate, and then driving the rotating frame 23 to rotate, and then driving the first rectangular frame 25 at one end of the rotating frame 23 to rotate, thereby squeezing the convex rod 26 by clamping it in the first rectangular frame 25 through the convex rod 26, thereby pushing the second connecting rod 16 at one end of the convex rod 26 to move. By the movement of the second connecting rod 16, it drives the second rectangular frame 28 at one end of the second connecting rod 16 to squeeze the first connecting rod 14 and push the first connecting rod 14 to move, thereby driving the swing arm 12 on the first connecting rod 14 to rotate, and then driving the limit clip 13 at the bottom of the swing arm 12 to rotate. By the rapid deflection of the limit clip 13, the bracket 1 is quickly clamped and fixed on the upper or lower teeth.

[0045] As a further solution of the present invention, the telescopic assembly includes a rectangular groove plate 29 and a rectangular plate 30. The rectangular plate 30 is movably clamped inside the rectangular groove plate 29. One end of the rectangular groove plate 29 is hinged to the swing arm 12, and one end of the rectangular plate 30 is hinged to another swing arm 12. A rectangular groove 31 is opened on the rectangular groove plate 29, and an adjusting rod 32 located inside the rectangular groove 31 is fixed on the rectangular plate 30.

[0046] In this embodiment, when the swing arm 12 deflects, it will drive the rectangular plate 30 to be movably inserted inside the rectangular groove plate 29. The movable insertion of the rectangular plate 30 inside the rectangular groove plate 29 can change the telescopic amount between the rectangular plate 30 and the rectangular groove plate 29. After the occlusion record of the upper or lower teeth is completed, the adjusting rod 32 is toggled to slide in the rectangular groove 31, driving one end of the rectangular plate 30 to be withdrawn from the rectangular groove plate 29, so that one end of the rectangular plate 30, the swing arm 12, expands outward, thereby releasing the fixation of the swing arm 12 on the upper or lower teeth, and thus facilitating the quick removal of the bracket 1 from the upper or lower teeth.

[0047] As a further solution of the present invention, a support rod 4 is fixed on the bracket 1, and a support 3 is fixed on the support rod 4. The mold base 2 is fixedly installed on the support 3.

[0048] In this embodiment, a through hole with an inner diameter size adapted to the outer diameter size of the support rod 4 is provided on the support 3, and the support rod 4 is fixedly inserted into the through hole, and the die holder 2 is stably supported by the support 3.

[0049] As a further solution of the present invention, a rotating rod 6 is rotatably provided on the support 3, and a pressing plate 7 is fixed on the rotating rod 6.

[0050] In this embodiment, a through hole with an inner diameter size adapted to the outer diameter size of the rotating rod 6 is provided on the support 3, and the rotating rod 6 is movably inserted into the through hole, and the rotating rod 6 can rotate in the through hole.

[0051] The working principle of the invention is as follows: A die holder 2 is installed on a bracket 1, and a silicone rubber mold 5 is adhered to the die holder 2. A swing arm 12 and a limit clip 13 are rotatably arranged on the bracket 1. When making an occlusion record for a patient with multiple missing teeth in the oral cavity, the bracket 1 is placed on the upper or lower teeth, and correspondingly, the upper or lower teeth are fixed by the limit clip 13 rotating and clamping on the upper or lower teeth. Then, when making an occlusion record for a patient with multiple missing teeth in the oral cavity, when the patient's upper and lower teeth occlude, it will squeeze the pressure plate 7 to one side and drive the pressure plate 7 to rotate, thereby driving the pressure frame 8 to rotate. While the pressure plate 7 rotates, it will drive the pressure frame 8 at the bottom of the pressure plate 7 to squeeze the movable frame 10 and drive it to move downward. While the movable frame 10 moves downward, it will drive the pull rod 17 to move downward. While the pull rod 17 moves downward, it will pull one end of the cam 18 downward to drag and drive the cam 18 to rotate, thereby driving the other end of the cam 18 to rotate. When the cam 18 swings to the vertical position, the elastic elongation of the second spring 21 gradually increases. Until when it deflects beyond the maximum stretching length in the vertical position, the second spring 21 quickly contracts. Then, the elastic force of the second spring 21 is used to drive one end of the cam 18 to quickly deflect, thereby driving the pressing rod 19 at one end of the cam 18 to swing onto the runner 24 and squeeze the runner 24, thereby driving the runner 24 to rotate, thereby driving the rotating frame 23 to rotate, thereby driving the first rectangular frame 25 at one end of the rotating frame 23 to rotate and squeeze the convex rod 26 by clamping the convex rod 26 in the first rectangular frame 25, thereby pushing the second connecting rod 16 at one end of the convex rod 26 to move. The movement of the second connecting rod 16 drives the second rectangular frame 28 at one end of the second connecting rod 16 to squeeze the first connecting rod 14 and push the first connecting rod 14 to move, thereby driving the swing arm 12 on the first connecting rod 14 to rotate, thereby driving the limit clip 13 at the bottom of the swing arm 12 to rotate. Through the quick deflection of the limit clip 13, the bracket 1 is quickly clamped and fixed on the upper or lower teeth. While the movable frame 10 moves downward, it will drive the swing arm 12 to rotate to drive the limit clip 13 to rotate to both sides of the tooth to clamp and fix the tooth. The silicone rubber mold 5 on the die holder 2 can cover the lower or upper teeth, and the silicone rubber mold 5 deforms during occlusion before curing. After occluding for a period of time, the silicone rubber mold 5 cures, thereby recording the tooth loss situation of the patient through the silicone rubber mold 5. When the swing arm 12 deflects, it will drive the rectangular plate 30 to be movably inserted into the rectangular groove plate 29. The movable insertion of the rectangular plate 30 into the rectangular groove plate 29 can change the elongation between the rectangular plate 30 and the rectangular groove plate 29. After the occlusion record of the upper or lower teeth is completed, the adjusting rod 32 is toggled to slide in the rectangular groove 31 to drive one end of the rectangular plate 30 to be pulled out of the rectangular groove plate 29, thereby expanding one end of the rectangular plate 30, i.e., the swing arm 12, outward, thereby releasing the fixation of the swing arm 12 on the upper or lower teeth, and thus facilitating the quick removal of the bracket 1 from the upper or lower teeth.

[0052] The above embodiments are exemplary and not restrictive. Therefore, all technical solutions of the present invention that can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention are encompassed within the present invention.

Claims

1. An occlusal registration device for intraoral scanning and impression taking of patients with multiple tooth loss, comprising a bracket (1), characterized in that, A mold base (2) for adhering a silicone rubber mold (5) is installed on the bracket (1). The silicone rubber mold (5) is used for occlusal recording of tooth loss. A pressing plate (7) is rotatably arranged on the bracket (1). A pressing frame (8) fixedly arranged on the pressing plate (7) penetrates through the bracket (1). A bottom plate (9) is fixedly arranged at the bottom of the bracket (1). An active frame (10) is arranged inside the bottom plate (9) below the bracket (1). First springs (11) are connected between the four corners of the upper wall of the active frame (10) and the bottom wall of the bracket (1). When the pressing plate (7) rotates, it will drive the pressing frame (8) at the bottom of the pressing plate (7) to extrude the active frame (10) and drive it to displace downward. Swing arms (12) are respectively hinged on both sides of the bracket (1). A limiting clip (13) is fixedly arranged at the bottom end of the swing arm (12). The swing arm (12) and the active frame (10) are connected and cooperated through a linkage structure. When the active frame (10) displaces downward, it will drive the swing arm (12) to rotate so as to drive the limiting clip (13) to rotate to clamp and fix the teeth on both sides of the teeth. A telescopic component for driving the swing arm (12) to rotate and reset is further arranged on the swing arm (12).

2. The occlusal record device for intraoral scanning and impression taking of patients with multiple missing teeth according to claim 1, characterized in that, A through groove (35) is formed on the bracket (1), and the pressing frame (8) penetrates through the through groove (35).

3. The occlusal record device for intraoral scanning and impression taking of patients with multiple tooth loss according to claim 1, characterized in that, An adhesive is adhered to the upper surface of the mold base (2), and the silicone rubber mold (5) is fixedly adhered to the upper surface of the mold base (2) through the adhesive.

4. The occlusal registration device for intraoral scanning and impression taking of patients with multiple tooth loss according to claim 1, characterized in that, The bottom cross section of the bottom plate (9) is arc-shaped, and a soft rubber layer is fixedly adhered to the lower surface of the bottom plate (9).

5. The occlusal record device for intraoral scanning and impression taking of patients with multiple tooth loss according to claim 1, characterized in that, The linkage structure includes a fixed seat (15) fixed on the bracket (1). A second connecting rod (16) is inserted through the fixed seat (15). A pull rod (17) fixedly arranged on the active frame (10) penetrates through the bracket (1). A first mounting frame (33) and a second mounting frame (34) are fixed on the bracket (1). A cam (18) is rotatably arranged on the first mounting frame (33). A pressing rod (19) is fixedly arranged on the cam (18). A fixed rod (20) is fixed on the second mounting frame (34). A rotating frame (23) is rotatably installed on the second mounting frame (34). A second spring (21) is connected between the pressing rod (19) and the fixed rod (20). An articulated rod (22) is arranged between the cam (18) and the pull rod (17). The two ends of the articulated rod (22) are respectively hinged to the cam (18) and the pull rod (17). A runner (24) is rotatably arranged at one end of the rotating frame (23), and a first rectangular frame (25) is fixed at the other end. A convex rod (26) which is movably clamped in the first rectangular frame (25) is fixed at one end of the second connecting rod (16). An activity groove (27) is formed on the fixed seat (15), and the second connecting rod (16) penetrates through the activity groove (27). A first connecting rod (14) is rotatably installed on the two swing arms (12). A second rectangular frame (28) which is movably sleeved on the first connecting rod (14) is fixed at one end of the second connecting rod (16).

6. The occlusal record device for intraoral scanning and impression taking for patients with multiple tooth loss according to claim 1, characterized in that, The telescopic component includes a rectangular groove plate (29) and a rectangular plate (30). The rectangular plate (30) is movably clamped inside the rectangular groove plate (29). One end of the rectangular groove plate (29) is hinged to the swing arm (12), and one end of the rectangular plate (30) is hinged to another swing arm (12). A rectangular groove (31) is formed in the rectangular groove plate (29), and an adjusting rod (32) located inside the rectangular groove (31) is fixed on the rectangular plate (30).

7. The occlusal record device for intraoral scanning and impression taking for patients with multiple tooth loss according to claim 1, wherein, A support rod (4) is fixed on the bracket (1), and a support (3) is fixed on the support rod (4). The die base (2) is fixedly installed on the support (3).

8. The occlusal record device for intraoral scanning and impression taking of patients with multiple tooth loss according to claim 7, characterized in that, A rotating rod (6) is rotatably arranged on the support (3), and the pressing plate (7) is fixed on the rotating rod (6).

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