Oral teaching model

Abstract

The present application relates to the technical field of oral teaching, and particularly relates to an oral teaching model. The present application comprises a lower gingival model strip, and an upper gingival model strip assembled above the lower gingival model strip, and a plurality of mimic tooth models are uniformly assembled on the top of the lower gingival model strip and the bottom of the upper gingival model strip. The present application is convenient for adjusting and positioning the positions of the mimic tooth models through the structural design of the feedback mechanism and the anti-falling mechanism, and can simulate the sound of pain according to the separation state of the mimic tooth model from the lower gingival model strip and the upper gingival model strip, so as to facilitate the understanding of the relationship between the teeth and the gums of a person, and improve the flexibility of the present device. Furthermore, the present application can adjust various angles and positions of the mimic tooth model through the structural design of the universal adjusting mechanism, which is beneficial to simulate the condition of the teeth of a person in a loose state, and the structure is simple and convenient to carry and reuse.

Description

Technical Field

[0001] This invention relates to the field of oral education technology, and in particular to an oral education model. Background Technology

[0002] As an independent discipline, stomatology integrates the principles and technologies of modern biology, basic medicine, clinical medicine, engineering, and many natural sciences. It focuses on the prevention and treatment of oral and maxillofacial diseases, demonstrating significant practicality, comprehensiveness, and interdisciplinary nature. In training stomatology professionals, practical skills are crucial because dentists directly treat real patients. Therefore, using specially designed dental extraction simulation models for teaching purposes to provide practice closely resembling clinical experience is extremely important.

[0003] Current teaching models consist of a base, a wax rim, and several plastic teeth. The wax rim is placed directly on the base, and the plastic teeth are embedded in it. Heating softens the wax rim, allowing the teeth to be repositioned. However, this model is limited by the properties of wax. Furthermore, other existing dental simulation models for tooth extraction, while capable of simulating the extraction process, often use adhesives to fix the teeth. This not only limits reusability but also increases the risk of damage from frequent use, thus increasing costs. Therefore, we propose a new dental teaching model. Summary of the Invention

[0004] The purpose of this invention is to provide an oral teaching model to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An oral teaching model includes a lower gingival model strip and an upper gingival model strip mounted above the lower gingival model strip. Multiple simulated tooth models are evenly distributed on the top of the lower gingival model strip and the bottom of the upper gingival model strip. Metal bent strips are fixed to both ends of the lower gingival model strip, with one end of each metal bent strip fixed to the upper gingival model strip. A feedback mechanism is installed between the lower gingival model strip, the upper gingival model strip, and the simulated tooth models. This feedback mechanism is used to simulate simulated connections and separations between the lower gingival model strip, the upper gingival model strip, and the simulated tooth models.

[0007] Preferably, the feedback mechanism includes a docking component and an auxiliary component. The top of the lower gingival model strip and the bottom of the upper gingival model strip are each provided with a semi-circular opening corresponding to the position of the simulated tooth model. The docking component is assembled on the inner side of the semi-circular opening, and the auxiliary component is assembled between the docking component and the lower gingival model strip.

[0008] Preferably, the docking assembly includes an inner track, a first movable plate, a second movable plate, a lower connecting cylinder, and an upper connecting cylinder. The bottom of each semi-annular opening is provided with an inner track. The inner side of each semi-annular opening is slidably connected to a first movable plate, which is assembled and connected to the simulated tooth model. The inner side of each inner track is equipped with a second movable plate, which is transitionally fitted with the inner track. The top of each second movable plate is threadedly connected to a lower connecting cylinder, and the top of each lower connecting cylinder is slidably connected to an upper connecting cylinder, which is threadedly connected to the first movable plate.

[0009] Preferably, the docking assembly further includes a limiting elastic ring, a first positioning seat, a first inner post, a first connecting spring, a mating joint, a second positioning seat, a second inner post, a second connecting spring, and a sealing plate. The inner sides of both the lower and upper connecting cylinders are fitted with limiting elastic rings. One side of each of the two limiting elastic rings is respectively in contact with a first positioning seat and a second positioning seat. A first inner post is fixed to the top of the first positioning seat. A first connecting spring is sleeved on the outer side of the first inner post. The bottom of the first connecting spring is fixed to the first positioning seat. A mating joint is fixed to the top of the first connecting spring and is slidably connected to the first inner post. A second inner post is fixed to the bottom of the second positioning seat. A second connecting spring is sleeved on the outer side of the second inner post. A sealing plate is fixed to the bottom of the second connecting spring and is slidably connected to the second inner post.

[0010] Preferably, the auxiliary components include a pressure sensor, a pressure-applying rubber head, a sound simulator, and a microcontroller. The pressure sensor is fixed to the top of the connector, the pressure-applying rubber head is fixed to the bottom of the sealing piece, the sound simulator is fixed to one side of the lower gingival model strip, and the microcontroller is fixed to the top of one end of the lower gingival model strip. The microcontroller is electrically connected to the sound simulator and the pressure sensor via wires.

[0011] Preferably, the outer sides of the lower connecting cylinder and the upper connecting cylinder are equipped with an anti-detachment mechanism, which is used to assist in the stable connection between the lower connecting cylinder and the upper connecting cylinder.

[0012] Preferably, the anti-detachment mechanism includes a docking part, a limiting bead, a force-applying movable sleeve, a rubber ring, and a fitting gap. The docking part is integrally fixed to the top of the lower connecting cylinder. Multiple spherical through holes are evenly distributed on the inner side of the docking part. A limiting bead is provided on the inner side of each spherical through hole. The limiting bead is sized to match the spherical through hole. A force-applying movable sleeve is slidably connected to the outer side of the lower connecting cylinder. A rubber ring is provided on the inner side of the docking part. A fitting gap is provided in the area between the force-applying movable sleeve and the docking part. A reset metal spring is inserted on the inner side of the fitting gap. One end of the metal spring is fixed to the force-applying movable sleeve, and the other end of the metal spring is fixed to the docking part.

[0013] Preferably, a universal adjustment mechanism is assembled between the simulated tooth model and the first movable plate, the universal adjustment mechanism being used to simulate the loosening of the simulated tooth model on the lower gingival model strip and the upper gingival model strip.

[0014] Preferably, the universal adjustment mechanism includes a connecting fixed ball, a spherical shell, a storage groove, a return spring, a mating movable ball, and spherical recesses. A connecting fixed ball is fixed to the top of each of the first movable plates. A spherical shell is sleeved on the outer side of each connecting fixed ball. The spherical shell is fixed to the inner side of the simulated tooth model. A storage groove is formed on the top of the inner side of each spherical shell. A return spring is fixed to the top of the inner side of each storage groove. A mating movable ball is fixed to the bottom of each return spring. The mating movable ball is slidably connected to the storage groove. Multiple spherical recesses are evenly distributed on the outer side of each connecting fixed ball, and the spherical recesses are slidably connected to the mating movable ball.

[0015] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0016] Meanwhile, through the above technical solutions, the present invention has at least the following beneficial effects:

[0017] 1. Through the structural design of the feedback mechanism and the anti-detachment mechanism, this invention makes it easy to adjust and position the simulated tooth model. At the same time, it can simulate the sound of pain based on the separation status of the simulated tooth model from the lower and upper gingival model strips, which helps to understand the relationship between human teeth and gums and improves the flexibility of this device.

[0018] 2. Through the structural design of the universal adjustment mechanism, this invention enables the device to adjust various angles and orientations of the simulated tooth model, which is beneficial for simulating the condition of human teeth when they are loose. At the same time, the structure is simple, easy to carry, and easy to reuse. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the connection structure between the lower gingival model strip and the simulated tooth model of the present invention;

[0022] Figure 3 This is a schematic diagram of the connection structure between the second movable plate and the lower connecting cylinder of the present invention;

[0023] Figure 4 This is a cross-sectional structural diagram of the lower connecting cylinder and the upper connecting cylinder of the present invention;

[0024] Figure 5 This is a schematic diagram of the connection structure between the limiting elastic ring and the second positioning seat of the present invention.

[0025] Figure 6 This is a schematic diagram of the connection structure between the first movable plate and the connecting fixed ball of the present invention;

[0026] Figure 7 This is a schematic diagram of the cross-sectional structure of the spherical shell of the present invention;

[0027] Figure 8 This is a schematic diagram of the connection structure between the storage groove and the movable ball of the present invention.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] In the diagram: 1. Lower gingival model strip; 2. Upper gingival model strip; 3. Mimicry tooth model; 4. Metal bending strip; 5. Semi-circular opening; 6. Inner track; 7. First movable plate; 8. Second movable plate; 9. Lower connecting cylinder; 10. Upper connecting cylinder; 11. Limiting elastic ring; 12. First positioning seat; 13. First inner connecting post; 14. First connecting spring; 15. Connecting joint; 16. Pressure sensor; 17. Second positioning seat; 18. Second inner connecting post; 19. Second connecting spring; 20. Sealing piece; 21. Pressure-applying rubber head; 22. Connecting part; 23. Limiting bead; 24. Force-applying movable sleeve; 25. Rubber ring; 26. Fitting gap opening; 27. Connecting fixing ball; 28. Spherical shell; 29. ​​Storage groove; 30. Return spring; 31. Fitting movable ball; 32. Spherical recess; 33. Sound simulator; 34. Microcontroller. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0031] Example 1

[0032] Reference Figure 1-5 An oral teaching model includes a lower gingival model strip 1 and an upper gingival model strip 2 mounted above the lower gingival model strip 1. Multiple simulated tooth models 3 are evenly distributed on the top of the lower gingival model strip 1 and the bottom of the upper gingival model strip 2. Metal bent strips 4 are fixed to both ends of the lower gingival model strip 1, with one end of each metal bent strip 4 fixed to the upper gingival model strip 2. A feedback mechanism is installed between the lower gingival model strip 1, the upper gingival model strip 2, and the simulated tooth models 3. This feedback mechanism simulates the simulated connection and separation between the lower gingival model strip 1, the upper gingival model strip 2, and the simulated tooth models 3. In later oral teaching, students will encounter a series of in-depth and highly practical learning contents, one important aspect of which is the detailed operation and study of the simulated tooth models. To help students better understand tooth structure, arrangement rules, and treatment plan formulation, they can independently arrange the number of these highly realistic simulated tooth models 3 in a hierarchical manner. This process goes beyond simple physical placement; it requires students to scientifically and rationally arrange these models based on their knowledge, such as the order of tooth growth, occlusal relationships, and the characteristics of tooth development in different age groups. Through such exercises, students not only deepen their understanding of fundamental theories such as oral anatomy, physiology, and pathology, but also improve their spatial imagination, logical thinking, and practical skills, laying a solid foundation for becoming excellent dentists in the future.

[0033] The feedback mechanism includes a docking component and an auxiliary component. The top of the lower gingival model strip 1 and the bottom of the upper gingival model strip 2 are both provided with semi-circular openings 5 ​​corresponding to the positions of the simulated tooth model 3. The docking component is installed on the inner side of the semi-circular opening 5, and the auxiliary component is installed between the docking component and the lower gingival model strip 1.

[0034] The docking assembly includes an inner track 6, a first movable plate 7, a second movable plate 8, a lower connecting cylinder 9, and an upper connecting cylinder 10. The bottom of each semi-annular opening 5 has an inner track 6. The inner side of each semi-annular opening 5 is slidably connected to a first movable plate 7, which is assembled and connected to the simulated tooth model 3. The inner side of each inner track 6 is fitted with a second movable plate 8, which transitionally fits with the inner track 6. The top of each second movable plate 8 is threadedly connected to a lower connecting cylinder 9, and the top of each lower connecting cylinder 9 is slidably connected to an upper connecting cylinder 10, which is threadedly connected to the first movable plate 7. In practice, the inner side of the inner track 6 is lined with an iron liner, and the inner side of the second movable plate 8 is equipped with a magnet to increase the connection stability between the inner track 6 and the second movable plate 8.

[0035] The docking assembly also includes a limiting elastic ring 11, a first positioning seat 12, a first inner post 13, a first connecting spring 14, a docking joint 15, a second positioning seat 17, a second inner post 18, a second connecting spring 19, and a sealing plate 20. The inner sides of both the lower connecting cylinder 9 and the upper connecting cylinder 10 are fitted with limiting elastic rings 11. One side of each of the two limiting elastic rings 11 is respectively in contact with the first positioning seat 12 and the second positioning seat 17. The top of the first positioning seat 12 is fixed with the first inner post 13, and the outer side of the first inner post 13 is fitted with the first connecting spring 14. The bottom of the first connecting spring 14 is connected to the first inner post 19. The positioning seat 12 is fixed, and the top of the first connecting spring 14 is fixed with a connector 15. The connector 15 is slidably connected to the first inner post 13. The bottom of the second positioning seat 17 is fixed with a second inner post 18. The outer side of the second inner post 18 is sleeved with a second connecting spring 19. The bottom of the second connecting spring 19 is fixed with a sealing piece 20. The sealing piece 20 is slidably connected to the second inner post 18. There is a gap between the sealing piece 20 and the pressure-applying rubber head 21, which facilitates increasing the deformation amplitude of the pressure-applying rubber head 21 when it contacts the pressure sensor 16, and can provide buffer protection for the pressure sensor 16.

[0036] The auxiliary components include a pressure sensor 16, a pressure-applying rubber head 21, a sound simulator 33, and a microcontroller 34. The pressure sensor 16 is fixed to the top of the connector 15, the pressure-applying rubber head 21 is fixed to the bottom of the sealing piece 20, the sound simulator 33 is fixed to one side of the lower gingival model strip 1, and the microcontroller 34 is fixed to the top of one end of the lower gingival model strip 1. The microcontroller 34 is electrically connected to the sound simulator 33 and the pressure sensor 16 via wires. The pressure threshold of the pressure sensor 16 is set by the microcontroller 34. When the pressure reaches the threshold, the pressure sensor 16 transmits a signal to the microcontroller 34. The microcontroller 34 processes the signal and emits a simulated human pain sound to the sound simulator 33.

[0037] The lower connecting cylinder 9 and the upper connecting cylinder 10 are equipped with anti-detachment mechanisms on their outer sides. The anti-detachment mechanisms are used to assist in the stable connection between the lower connecting cylinder 9 and the upper connecting cylinder 10.

[0038] The anti-detachment mechanism includes a docking part 22, a limiting bead 23, a force-applying movable sleeve 24, a rubber ring 25, and a mating gap 26. The docking part 22 is integrally fixed to the top of the lower connecting cylinder 9. Multiple spherical through holes are evenly distributed on the inner side of the docking part 22. A limiting bead 23 is provided on the inner side of each spherical through hole. The limiting bead 23 is sized to match the spherical through hole. The force-applying movable sleeve 24 is slidably connected to the outer side of the lower connecting cylinder 9. A rubber ring 25 is provided on the inner side of the docking part 22. A mating gap 26 is provided in the area between the force-applying movable sleeve 24 and the docking part 22. A reset metal spring is inserted on the inner side of the mating gap 26. One end of the metal spring is fixed to the force-applying movable sleeve 24, and the other end of the metal spring is fixed to the docking part 22. When the force-applying movable sleeve 24 is pressed, the force-applying movable sleeve 24 compresses the reset metal spring to deform, thereby releasing the limiting bead 23 and making it easy for the user to separate the upper connecting cylinder 10 from the lower connecting cylinder 9.

[0039] Example 2

[0040] Further optimizations to Example 1, specifically, such as... Figure 6-8 As shown, a universal adjustment mechanism is assembled between the simulated tooth model 3 and the first movable plate 7. The universal adjustment mechanism is used to simulate the loosening of the simulated tooth model 3 on the lower gingival model strip 1 and the upper gingival model strip 2.

[0041] The universal adjustment mechanism includes a connecting fixed ball 27, a spherical shell 28, a storage groove 29, a return spring 30, a mating movable ball 31, and spherical recesses 32. The top of the first movable plate 7 is fixed with a connecting fixed ball 27. A spherical shell 28 is sleeved on the outside of each connecting fixed ball 27. The spherical shell 28 is fixed to the inside of the simulated tooth model 3. A storage groove 29 is provided on the top of the inside of each spherical shell 28. A return spring 30 is fixed on the top of the inside of each storage groove 29. A mating movable ball 31 is fixed to the bottom of the return spring 30. The mating movable ball 31 is slidably connected to the storage groove 29. Multiple spherical recesses 32 are evenly distributed on the outside of each connecting fixed ball 27. The spherical recesses 32 are slidably connected to the mating movable ball 31. When it is necessary to simulate the loose and movable state of the simulated tooth model 3, the simulated tooth model is shaken. 3. This causes the simulated tooth model 3 to move along the outer side of the spherical shell 28 along the connecting fixed ball 27. Because the connecting fixed ball 27 is in ball contact with the spherical shell 28, the movable ball 31 is slidably connected to the spherical recess 32, and the movable ball 31 is fixed to the return spring 30. One end of the return spring 30 is fixed to the receiving groove 29, and the receiving groove 29 is slidably connected to the movable ball 31. Therefore, when the simulated tooth model 3 is shaken, the movable ball 31 is pushed by the connecting fixed ball 27 and retracts into the receiving groove 29. At this time, the return spring 30 is in a compressed state. When the shaking is finished, the movable ball 31 enters the corresponding spherical recess 32. At this time, the return spring 30 returns to its original position and pushes the movable ball 31 to connect with the inner side of the spherical recess 32, thus completing the positioning of the orientation and angle of the simulated tooth model 3.

[0042] In summary:

[0043] This invention addresses the technical problem of current teaching models, which consist of a base, a wax rim, and several plastic teeth. The wax rim is placed directly on the base, and the plastic teeth are embedded in it. Heating softens the wax rim, allowing the teeth to be repositioned. However, this model is limited by the properties of wax, and other existing dental simulation models for tooth extraction, while capable of simulating the extraction process, often use adhesives to fix the teeth. This not only limits the reusability of the model but also easily leads to damage from frequent use, increasing costs. The invention adopts the technical solutions described in the above embodiments. The implementation process of the above technical solutions is as follows:

[0044] During use, when the position of the simulated tooth model 3 needs to be adjusted, push the simulated tooth model 3 so that the simulated tooth model 3 drives the first movable plate 7 to move along the inner side of the semi-annular opening 5. Because the second movable plate 8 and the inner track 6 are in transition fit, there is frictional resistance. After the position of the simulated tooth model 3 is adjusted, the simulated tooth model 3 can be positioned. At this time, the distance between two adjacent simulated tooth models 3 is determined to simulate the gap between human teeth.

[0045] When simulating the loosening state between the simulated tooth model 3 and the lower gingival model strip 1 and the upper gingival model strip 2, the pressure threshold of the pressure sensor 16 is first set by the microcontroller 34, providing a first threshold and a second threshold. Then, the force-applying movable sleeve 24 is pressed down with medical forceps, causing the force-applying movable sleeve 24 to compress and retract the reset metal spring. At this time, the circumferential limitation on the limiting bead 23 is released. Then, the simulated tooth model 3 is pulled upward, causing the simulated tooth model 3 to move upward through the first movable plate 7 and drive the upper connecting cylinder 10, thereby reducing the pressure of the force-applying movable sleeve 24 on the pressure sensor 16. When the pressure reaches the first threshold, the pressure sensor 16 transmits a signal to the microcontroller 34, which processes the signal and emits a sound simulating mild human pain to the sound simulator 33. When the pressure reaches the second threshold, the pressure sensor 16 transmits a signal to the microcontroller 34, which processes the signal and emits a sound simulating severe human pain to the sound simulator 33, thereby achieving the purpose of simulation teaching.

[0046] With the above-mentioned settings, this application will certainly solve the above-mentioned technical problems, and at the same time achieve the following technical effects:

[0047] 1. Through the structural design of the feedback mechanism and the anti-detachment mechanism, this invention makes it easy to adjust and position the simulated tooth model 3. At the same time, it can simulate the sound of pain based on the separation status of the simulated tooth model 3 from the lower gingival model strip 1 and the upper gingival model strip 2, which helps to understand the relationship between human teeth and gums and improves the flexibility of this device.

[0048] 2. Through the structural design of the universal adjustment mechanism, this invention enables the device to adjust various angles and orientations of the simulated tooth model 3, which is beneficial for simulating the condition of human teeth when they are loose. At the same time, the structure is simple, easy to carry, and easy to reuse.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A dental teaching model, characterized in that, The device includes a lower gingival model strip (1) and an upper gingival model strip (2) mounted above the lower gingival model strip (1). Multiple simulated tooth models (3) are evenly distributed on the top of the lower gingival model strip (1) and the bottom of the upper gingival model strip (2). Metal bent strips (4) are fixed to both ends of the lower gingival model strip (1), and one end of each metal bent strip (4) is fixed to the upper gingival model strip (2). A feedback mechanism is installed between the lower gingival model strip (1), the upper gingival model strip (2), and the simulated tooth models (3). This feedback mechanism is used to simulate the simulated connection and separation between the lower gingival model strip (1), the upper gingival model strip (2), and the simulated tooth models (3). The structure includes a docking component and an auxiliary component. The top of the lower gingival model strip (1) and the bottom of the upper gingival model strip (2) are both provided with semi-circular openings (5) corresponding to the positions of the simulated tooth model (3). A docking component is fitted inside the semi-circular openings (5). An auxiliary component is fitted between the docking component and the lower gingival model strip (1). The docking component includes an inner rail (6), a first movable plate (7), a second movable plate (8), a lower connecting cylinder (9), and an upper connecting cylinder (10). An inner rail (6) is provided at the bottom of each semi-circular opening (5). A first movable plate (7) is slidably connected to the inner side of each semi-circular opening (5). The first movable plate (7) is assembled and connected to the simulated tooth model (3). The inner rail... The inner side of the track (6) is equipped with a second movable plate (8), which is transitionally fitted with the inner track (6). The top of the second movable plate (8) is threadedly connected to a lower connecting cylinder (9), and the top of the lower connecting cylinder (9) is slidably connected to an upper connecting cylinder (10). The upper connecting cylinder (10) is threadedly connected to the first movable plate (7). The outer sides of the lower connecting cylinder (9) and the upper connecting cylinder (10) are equipped with an anti-detachment mechanism. The anti-detachment mechanism is used to assist in the stable connection between the lower connecting cylinder (9) and the upper connecting cylinder (10). The anti-detachment mechanism includes a docking part (22), a limiting bead (23), a force-applying movable sleeve (24), a rubber ring (25), and a mating gap (26). The top of the connecting tube (9) is integrally fixed with a docking part (22). Multiple spherical through holes are evenly distributed on the inner side of the docking part (22). Limiting beads (23) are provided on the inner side of each spherical through hole. The limiting beads (23) are matched with the spherical through holes. A force-applying movable sleeve (24) is slidably connected to the outer side of the lower connecting tube (9). A rubber ring (25) is provided on the inner side of the docking part (22). A fitting gap (26) is provided in the area between the force-applying movable sleeve (24) and the docking part (22). A reset metal spring is passed through the inner side of the fitting gap (26). One end of the metal spring is fixed to the force-applying movable sleeve (24), and the other end of the metal spring is fixed to the docking part (22).

2. The oral teaching model according to claim 1, characterized in that, The docking assembly further includes a limiting elastic ring (11), a first positioning seat (12), a first inner post (13), a first connecting spring (14), a docking joint (15), a second positioning seat (17), a second inner post (18), a second connecting spring (19), and a sealing plate (20). The inner sides of the lower connecting cylinder (9) and the upper connecting cylinder (10) are both fitted with limiting elastic rings (11). One side of each of the two limiting elastic rings (11) is respectively in contact with the first positioning seat (12) and the second positioning seat (17). The top of the first positioning seat (12) is fixed with the first inner post (13). A first connecting spring (14) is sleeved on the outside of the inner connecting post (13). The bottom of the first connecting spring (14) is fixed to the first positioning seat (12). A connector (15) is fixed on the top of the first connecting spring (14). The connector (15) is slidably connected to the first inner connecting post (13). A second inner connecting post (18) is fixed on the bottom of the second positioning seat (17). A second connecting spring (19) is sleeved on the outside of the second inner connecting post (18). A sealing piece (20) is fixed on the bottom of the second connecting spring (19). The sealing piece (20) is slidably connected to the second inner connecting post (18).

3. The oral teaching model according to claim 2, characterized in that, The auxiliary components include a pressure sensor (16), a pressure-applying rubber head (21), a sound simulator (33), and a microcontroller (34). The pressure sensor (16) is fixed to the top of the connector (15), the pressure-applying rubber head (21) is fixed to the bottom of the sealing piece (20), the sound simulator (33) is fixed to one side of the lower gingival model strip (1), and the microcontroller (34) is fixed to the top of one end of the lower gingival model strip (1). The microcontroller (34) is electrically connected to the sound simulator (33) and the pressure sensor (16) via wires.

4. The oral teaching model according to claim 1, characterized in that, A universal adjustment mechanism is assembled between the simulated tooth model (3) and the first movable plate (7). The universal adjustment mechanism is used to simulate the loosening of the simulated tooth model (3) on the lower gingival model strip (1) and the upper gingival model strip (2).

5. The oral teaching model according to claim 4, characterized in that, The universal adjustment mechanism includes a connecting fixed ball (27), a spherical shell (28), a storage groove (29), a return spring (30), a mating movable ball (31), and a spherical recess (32). The top of the first movable plate (7) is fixed with a connecting fixed ball (27). The outer side of the connecting fixed ball (27) is fitted with a spherical shell (28). The spherical shell (28) is fixed to the inner side of the simulated tooth model (3). The top of the inner side of the spherical shell (28) is provided with a storage groove (29). The top of the inner side of the storage groove (29) is fixed with a return spring (30). The bottom of the return spring (30) is fixed with a mating movable ball (31). The mating movable ball (31) is slidably connected to the storage groove (29). The outer side of the connecting fixed ball (27) is provided with multiple spherical recesses (32). The spherical recesses (32) are slidably connected to the mating movable ball (31).

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