A simulation training device and method for multi-tooth extraction root canal treatment

Abstract

This invention relates to the field of root canal treatment simulation training, specifically a multi-tooth position extracted root canal treatment simulation training device, comprising: a dental arch support with several tooth position holes extending through it; a silicone cap detachably and sealingly installed on the upper part of the tooth position holes; and an electrical connection component detachably and sealingly installed on the bottom of the tooth position holes. Different elastic gradients are provided on the portions of the silicone cap covering the tooth position holes. The dental arch support is detachably mounted on a base, and a conduction component is installed inside the base. The conduction component contains a conduction circuit, which connects the electrical connection component and a root probe. This invention also provides a multi-tooth position extracted root canal treatment simulation training method, compatible with multiple training modes; it also provides calibration, anomaly detection, and handling methods for the conduction pathway, preventing corrosion and damage to some metal components from affecting the use of the entire dental arch model and extending the lifespan of the dental arch model.

Description

Technical Field

[0001] This invention relates to the field of root canal treatment simulation training, specifically to a multi-tooth extraction root canal treatment simulation training device and method. Background Technology

[0002] Root canal treatment is a crucial and complex procedure in dental practice, demanding extremely high precision and skill from dentists. Currently, many dental teaching institutions and hospitals still use traditional artificial or simulated models for root canal treatment training. These models often fail to simulate the actual structure of teeth and the details of root canal treatment, and cannot comprehensively simulate all the key steps in the treatment process, from pulpotomy to root canal cleaning, shaping, and filling. Furthermore, existing models are relatively simple in material and structural design, lacking realism in operation, and most are not reusable, resulting in high teaching costs.

[0003] Chinese Patent CN218159345U discloses a practice device for simulating root canal treatment in an intraoral environment. It includes an integrally formed frame and a movable spring pad on the frame. The frame contains a cavity for holding an electrolyte solution. The spring pad has a fixing hole in its center corresponding to the shape and size of the extracted tooth. The electrolyte solution at the bottom of the cavity is connected to one end of a conductive rod, and the other end of the conductive rod is connected to one end of a root canal measuring instrument. The other end of the root canal measuring instrument is connected to a root canal instrument placed inside the root canal of the extracted tooth. This solution uses an extracted tooth combined with a root canal measuring instrument to simulate the real root canal treatment process. However, this practice device does not distinguish tooth positions, cannot combine extracted teeth in different positions for multi-position simulation training, and cannot be combined with a head model training device for realistic oral environment simulation training.

[0004] The operating space for multiple extracted teeth simultaneously mounted on different positions of a dental arch mold differs from that for a single extracted tooth. A single-position device is unlikely to simulate the actual operating space. Therefore, during training, extracted teeth are often mounted on a dental arch mold, which is then placed inside the oral cavity of a simulated head model training device. In this position, the extracted teeth are similar to those used in actual surgery, being tilted. When performing procedures such as pulpotomy, root canal cleaning, shaping, and filling, not only is the operating space different from a horizontal position, but the angle and force applied are also significantly different.

[0005] Extracted teeth often have irregular shapes, making it difficult to stably install them into the slots of regular cylindrical molds. In an inclined state, how to make the extracted teeth relatively stable and fixed in the slots of regular tooth row molds becomes a problem.

[0006] Furthermore, metal guidewires are prone to corrosion and damage when immersed in electrolyte for extended periods, and once damaged, they are difficult to remove and replace. The training difficulty, operation time, and number of operations vary depending on the tooth position; therefore, the degree and time of damage to metal guidewires at different tooth positions also differ. If metal guidewires are uniformly embedded under the dental arch model, damage to some tooth-position metal guidewires may render the entire dental arch model unusable.

[0007] Therefore, there is an urgent need for a root canal treatment simulation training device that is suitable for fixing extracted teeth, can be compatible with single tooth position operation and multi-tooth position operation, can be compatible with operation in a wide horizontal space and operation in a narrow inclined space within a head model training device, and can facilitate the maintenance and replacement of fragile metal components. Summary of the Invention

[0008] The purpose of this invention is to provide a simulation training device and method for multi-tooth extraction root canal treatment, so as to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A simulation training device for multi-tooth extraction root canal treatment includes: a dental arch support with a plurality of tooth position holes extending through it; a silicone cap detachably and sealingly installed on the upper part of each tooth position hole; and an electrical connection assembly detachably and sealingly installed on the bottom of each tooth position hole. The silicone cap and the electrical connection assembly enable the formation of a sealed cavity inside each tooth position hole, the sealed cavity being used to hold a conductive liquid. The root of the extracted tooth can penetrate the silicone cap, extend into the corresponding tooth position hole, and be immersed in the conductive liquid.

[0011] The portion of the silicone cap covering the tooth orifice is provided with different elastic gradients, providing elastic deformation support that increases from the outer periphery to the center of the tooth orifice;

[0012] The dental arch support is detachably mounted on the base, and a conductive component is detachably installed inside the base. The conductive component is provided with a conductive circuit, and the conductive circuit connects the electrical connection component and the root probe.

[0013] Preferably, the tooth positioning hole has three depth gradients with different inner diameters from top to bottom; the upper part of the tooth positioning hole is a support hole for providing basic support for the periphery of the extracted tooth; the middle to bottom part of the tooth positioning hole is a conductive liquid hole for holding the conductive liquid; the bottom end of the tooth positioning hole is an electrical connection hole, and the outer periphery of the electrical connection hole is provided with an electrical connection thread for connecting to the electrical connection assembly.

[0014] Preferably, a support sleeve is provided at the bottom end of the silicone cap corresponding to the center of the tooth position hole, and the outer periphery of the support sleeve matches the inner periphery of the support hole, so that the bottom end of the silicone cap is elastically engaged inside the tooth position hole; an elastic cap is provided at the top inside the support sleeve, and an elastic hole is provided at the center of the elastic cap; a duckbill valve is provided at the bottom of the elastic cap where it meets the support sleeve.

[0015] Preferably, the elastic deformation capacity of the silicone cap covering the outer periphery of the tooth position hole is lower than that of the support sleeve, and the elastic deformation capacity of the support sleeve is lower than that of the elastic cap and the duckbill valve;

[0016] When the extracted tooth penetrates the elastic hole and extends into the tooth position hole, the elastic cap and the duckbill valve form an elastic fill between the inner wall of the support sleeve and the outer periphery of the extracted tooth.

[0017] Preferably, the number of electrical connection components is the same as the number of tooth holes; the electrical connection component includes an insulating sleeve, and the inner circumference of the insulating sleeve is provided with an insulating sleeve thread that matches the thread of the electrical connection hole, so that the electrical connection component can be thread-sealed and installed at the bottom of the electrical connection hole;

[0018] The insulating sleeve has a sliding cavity at its center, and the spring is installed in the sliding cavity. The spring is sleeved on the outer periphery of the electrical contact post, so that the electrical contact post can slide and extend relative to the insulating sleeve through the sliding cavity. The electrical contact post is made of conductive material.

[0019] Preferably, the upper part of the conductive assembly is provided with the same number of contact electrodes corresponding to the center of the tooth position hole; the front end of the conductive assembly is provided with a connecting wire extending out of the front end of the base; when the dental arch seat is installed on the base, the electrical contact post in the electrical contact assembly abuts against the contact electrode;

[0020] When the root canal instrument contacts the root of the extracted tooth, the conductive fluid receives a signal and connects to the root canal instrument in sequence through the electrical terminal in the electrical connection assembly, the contact electrode in the conductive assembly, and the connecting wire.

[0021] Preferably, the dental arch support has multiple fixing holes on the portion distinct from the tooth position holes; the silicone cover has silicone cover fixing holes corresponding to the fixing holes, and the silicone cover fixing pins pass through the silicone cover fixing holes and are installed in the fixing holes, so that the silicone cover is installed on the dental arch support.

[0022] Preferably, the bottom of the dental arch support is further provided with a plurality of mounting blocks, the inner wall of the mounting blocks is provided with mounting grooves, the mounting grooves are provided with mounting threads, and the mounting screws are matched with the mounting threads; the outer periphery of the base is provided with mounting holes corresponding to the mounting grooves, and the dental arch support can be installed on the base through the mounting screws.

[0023] Preferably, it also includes a mounting base, the outer periphery of which matches the outer periphery of the base, and is also provided with mounting holes corresponding to the mounting groove. The mounting screw can be threaded through the mounting holes of the mounting base and the base in sequence and installed in the mounting groove at the bottom of the dental arch support. The mounting base is provided with a magnetic suction device that matches the magnetic suction structure of the simulated head model training device, so that the dental arch support and the base can be magnetically installed inside the simulated head model training device.

[0024] A simulation training method for multi-tooth extraction root canal treatment includes the following steps:

[0025] S1. Equipment Installation:

[0026] The silicone cap, the dental arch support, the electrical connection assembly, the conductive assembly, and the base are installed sequentially.

[0027] S2. Calibrate the conduction path to confirm it is functioning correctly:

[0028] Add conductive liquid; inject an appropriate amount of conductive liquid into the tooth position hole;

[0029] Establish a conduction path for the root cannula; connect one end of the conduction wire of the root cannula to the conduction assembly; clamp the other end of the conduction wire of the root cannula onto the K file, so that the K file penetrates the silicone cap and extends into the tooth position hole of the dental arch seat to contact the conductive liquid;

[0030] Debug the root probe, use the data displayed by the root probe to calibrate the conduction path, and eliminate any abnormalities in the conduction path;

[0031] S3. Handling abnormal conduction pathways:

[0032] When the electrical signal in the conduction path is abnormal, the abnormality should be judged first, then the abnormality should be handled, and the subsequent operation should be carried out after the abnormality is eliminated.

[0033] The method for judging abnormal conduction pathways is as follows:

[0034] Move the K-file up and down and observe the data displayed on the root gauge.

[0035] If the electrical signal returns to normal after moving the K-file down, it is determined that the conductive fluid is insufficient.

[0036] If the electrical signal is still abnormal when the K-file is moved down to the bottom of the contact point, the metal conductive device is considered to be damaged.

[0037] The methods for handling abnormal conduction pathways are as follows:

[0038] If the abnormality is caused by insufficient conductive fluid, inject more conductive fluid into the tooth position hole until the K file moves up and the root canal shows normal data.

[0039] If the cause of the abnormality is damage to the metal conductive device, first replace the electrical connection assembly at the corresponding tooth position; if the abnormality persists after replacing the electrical connection assembly, then replace the conductive assembly.

[0040] S4. After recalibrating and confirming no abnormalities, install the extracted tooth;

[0041] S5. Select training mode and start simulation training for multi-tooth extraction root canal treatment.

[0042] Compared with the prior art, the beneficial effects of the present invention are:

[0043] 1. The present invention provides a simulation training device for multi-tooth position extracted tooth root canal treatment, which can simultaneously install extracted teeth in multiple positions and is compatible with single tooth position open operation space training mode and multi-tooth position crowded operation space training mode.

[0044] 2. The present invention provides a simulation training device for multi-tooth position extracted tooth root canal treatment, wherein the silicone cap has different elastic gradients, so that there is progressive elastic filling support between the irregular outer periphery of the extracted tooth and the regular inner wall of the tooth position hole of the tooth arch seat.

[0045] 3. The present invention provides a simulation training device for multi-tooth position extracted root canal treatment, which is equipped with electrical connection components and conductive components that can be disassembled and replaced separately relative to the dental arch base. The conductive metal devices are changed from a whole to a modular part, avoiding the corrosion and damage of some metal devices due to long-term immersion in conductive liquid, which affects the use of the entire dental arch model and extends the service life of the dental arch model.

[0046] 4. The present invention provides a simulation training device for multi-tooth position extracted root canal treatment, which provides a magnetic mounting structure adapted to the simulated head model training device and is compatible with oral tilt training mode; and is also compatible with single tooth position and multi-tooth position, as well as oral tilt environment of upper and lower teeth and other training modes.

[0047] 5. This invention also provides a simulation training method for multi-tooth position extracted root canal treatment, which clarifies the calibration of conduction pathways and the methods for judging and handling abnormalities, making the training process more standardized and highly practical. Attached Figure Description

[0048] Figure 1 An appearance diagram of a simulation training device for multi-tooth site extracted root canal treatment;

[0049] Figure 2Exploded view of a simulation training device for multi-tooth extraction root canal treatment;

[0050] Figure 3 This is a partial cross-sectional view of the slots in the silicone cap and tooth seat;

[0051] Figure 4 This is a diagram of the bottom structure of the tooth row seat;

[0052] Figure 5 This is a cross-sectional view of the electrical connection assembly;

[0053] Figure 6 This is a diagram of the conductive component's appearance.

[0054] Figure 7 This is a cross-sectional view of the extracted tooth in its installed state.

[0055] In the diagram: 1. Tooth row seat; 101. Conductive fluid hole; 102. Support hole; 103. Electrical connection hole; 104. Electrical connection hole thread; 105. Mounting block; 106. Mounting groove; 107. Mounting thread; 108. Fixing hole; 2. Silicone cap; 201. Support sleeve; 202. Elastic cap; 203. Elastic hole; 204. Duckbill valve; 205. Silicone cap fixing hole; 3. Electrical connection assembly; 301. Insulating sleeve; 302. Electrical connection post; 303. Spring; 304. Insulating sleeve thread; 4. Conductive assembly; 401. Contact electrode; 402. Connecting wire; 5. Base; 6. Mounting seat; 7. Mounting screw; 8. Silicone cap fixing pin; 9. Extracted tooth. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0058] like Figure 1 and Figure 2As shown, the present invention provides a simulation training device for multi-tooth position extracted root canal treatment, including a tooth arch seat 1. According to the simulation training needs of different tooth positions, the tooth arch seat 1 has several tooth position holes permeating it. A silicone cover 2 is detachably and sealingly installed on the upper part of the tooth position hole, and an electrical connection component 3 is detachably and sealingly installed on the bottom of the tooth position hole. The silicone cover 2 and the electrical connection component 3 enable the tooth position hole to form a sealed cavity, which is used to hold conductive liquid. The root of the extracted tooth 9 can penetrate the silicone cover 2, extend into the corresponding tooth position hole, and be immersed in the conductive liquid.

[0059] The portion of the silicone cap 2 covering the tooth position hole is designed with different elastic gradients. When the extracted tooth 9 is installed on the dental arch seat 1 through the silicone cap 2, the tooth position hole in the dental arch seat 1 provides basic support, and the silicone cap 2 provides elastic deformation support that increases from the periphery to the center of the tooth position hole, in order to adapt to extracted teeth 9 of different sizes.

[0060] The tooth seat 1 is detachably mounted on the base 5. A conductive assembly 4 is detachably installed at the bottom of the base 5. The conductive assembly 4 contains a conductive circuit, which connects to the electrical connector 3 and the root canal measuring instrument. When a root canal instrument (such as a K-file) contacts the root of the extracted tooth, the conductive fluid inside the tooth position fork receives a signal and sequentially connects to the root canal measuring instrument via the electrical connector 3 and the conductive assembly 4. The root canal measuring instrument provides real-time feedback on the operation, helping the operator determine the depth and force of the operation.

[0061] Specifically, such as Figure 3 As shown, the dental arch support 1 simulates the shape of the jawbone and periodontal tissues, with the upper end being the dental arch end and the lower end being the mounting end. The number and position of the tooth positioning holes correspond to the tooth positions required for training. Multiple fixing holes 108 are provided on the portion of the dental arch support 1 that differs from the tooth positioning holes; these fixing holes 108 are used to fix the silicone cap 2.

[0062] The tooth positioning hole has three different depth gradients with different inner diameters from top to bottom. The upper part of the tooth positioning hole is a support hole 102, which is used to provide basic support for the periphery of the extracted tooth 9; the middle to bottom part of the tooth positioning hole is a conductive liquid hole 101, which is used to hold conductive liquid; the bottom end of the tooth positioning hole is an electrical connection hole 103, and the outer periphery of the electrical connection hole 103 is provided with an electrical connection hole thread 104 for connection with the electrical connection assembly 3.

[0063] The silicone cover 2 has a silicone cover fixing hole 205 corresponding to the fixing hole 108. The silicone cover fixing pin 8 passes through the silicone cover fixing hole 205 and is installed in the fixing hole 108, so that the silicone cover 2 is installed on the dental seat 1. When cleaning or replacement is required, the fixing pin 8 can be removed to remove the silicone cover 2. The silicone cover fixing pin 8 can be a quick-insert and re-insert post pin or a more stable threaded pin, depending on different installation requirements.

[0064] A support sleeve 201 is provided at the bottom end of the silicone cap 2, corresponding to the center of the tooth position hole. The outer periphery of the support sleeve 201 matches the inner periphery of the support hole 102, allowing the bottom end of the silicone cap 2 to be elastically engaged inside the tooth position hole. An elastic cap 202 is provided at the top inside the support sleeve 201, and an elastic hole 203 is provided at the center of the elastic cap 202. A duckbill valve 204 is provided at the bottom of the elastic cap 202 where it meets the support sleeve 201.

[0065] Centered on the central axis of the tooth position hole, the silicone cap 2 has an increasing elastic deformation gradient from the outside to the inside of the contact part with the tooth position hole. Specifically, the elastic deformation capacity of the area covering the outer periphery of the tooth position hole of the tooth seat 1 is lower than that of the support sleeve 201, and the elastic deformation capacity of the support sleeve 201 is much lower than that of the elastic cap 202 and the duckbill valve 204.

[0066] When the extracted tooth 9 is not installed, the support sleeve 201, the elastic cap 202, and the duckbill valve 204 are in the preset state. At this time, the duckbill valve 204 is completely retracted inside the support sleeve 201, and the bottom is curled up, so that the upper end of the conductive liquid hole 101 is in a closed state to prevent the conductive liquid from spilling out. When the extracted tooth 9 penetrates the elastic hole 203 and extends into the tooth position hole, the elastic cap 202 is squeezed downward and deformed outward, and the duckbill valve 204 expands according to the deformation of the outer periphery of the root of the extracted tooth 9. At this time, the elastic cap 202 and the duckbill valve 204 are squeezed and completely deformed, forming an elastic filling between the inner wall of the support sleeve 201 and the outer periphery of the extracted tooth 9.

[0067] Because extracted teeth are natural teeth completely detached from the periodontal tissue, their irregular shape and lack of standard dimensions make them difficult to stably mount in standard cylindrical sockets. During root canal training, the training equipment is often placed inside the mouth of the prosthetic head training device. At this time, both the training equipment and the extracted tooth are tilted. If the relative positions of the extracted tooth and the training equipment cannot be kept fixed, it will affect the angle and force applied by the operator during training, weakening the training effect. Therefore, fixing extracted teeth requires not only the basic support of the standard socket but also elastic support that can relatively flexibly fill the irregular gaps between the extracted tooth and the standard socket, achieving the effect of stably "squeezing" the extracted tooth into the tooth position foramen.

[0068] In this invention, the upper support hole 102 of the tooth position hole of the dental arch seat 1 is a standard cylindrical slot hole, providing basic support; the support sleeve 201 of the silicone cover 2 serves as a transitional insertion structure between the top plane of the tooth position hole and the tooth position hole, requiring both a certain degree of hardness to prevent the silicone cover 2 from collapsing excessively inward when the extracted tooth 9 is inserted downward into the tooth position hole, and a certain degree of elasticity to ensure that extracted teeth 9 of different sizes have sufficient elastic penetration space; the elastic cover 202 serves as a direct deformation component for the extraction of the extracted tooth 9 into the tooth position hole, requiring strong elastic deformation capability, and after being squeezed, elastically filling the gap between the irregular outer periphery of the extracted tooth 9 and the inner wall of the support sleeve 201, ensuring that the root of the extracted tooth 9 can be "squeezed" into the tooth position hole to a suitable depth and fully immersed in the conductive liquid, and also ensuring that the outer periphery of the extracted tooth 9 can be stably "squeezed" in, and will not shift up and down or tilt in the circumferential direction as the operator grinds. The duckbill valve is a commonly used one-way valve in medical devices, and its principle will not be elaborated here. The duckbill valve 204 is located at the bottom of the elastic cap 202 and inside the supporting sleeve 201. In this invention, it not only functions as a one-way valve to seal the conductive liquid in the conductive liquid hole 101, but also serves as an extension elastic component of the elastic cap 202 to further fill the peripheral gap of the extracted tooth 9 and assist in the elastic fixation of the lower part of the extracted tooth 9.

[0069] The surface of the tooth seat 1 is insulated, the inner surface of the tooth position hole is insulated and corrosion-resistant, and the silicone cover 2 is made of elastic insulating material.

[0070] Furthermore, such as Figure 4 and Figure 5 As shown, the number of electrical connector assemblies 3 is the same as the number of toothed holes. Each electrical connector assembly 3 includes an insulating sleeve 301, which is made of insulating material or has an insulating surface treatment. The inner circumference of the insulating sleeve 301 has an insulating sleeve thread 304 that matches the thread 104 of the electrical connector hole, allowing the electrical connector assembly 3 to be thread-sealed and installed at the bottom of the electrical connector hole 103. A sliding cavity is provided at the center of the insulating sleeve 301, and a spring 303 is installed in the sliding cavity. The spring 303 is sleeved on the outer circumference of the electrical connector post 302, allowing the electrical connector post 302 to slide and extend relative to the insulating sleeve 301 through the sliding cavity. The electrical connector post 302 is made of conductive material.

[0071] When the electrical connector assembly 3 is installed at the bottom of the dental arch support 1, the insulating sleeve 301 insulates and seals the electrical connector hole 103. One end of the electrical connector post 302 extends into the electrical connector hole 103, contacting the conductive liquid in the conductive liquid hole 101, while the other end protrudes from the bottom of the dental arch support 1, forming an electrical conductive interface connecting the inside and outside of the tooth position hole. Most existing training devices design the metal wires and dental arch support as an integrated structure. However, prolonged immersion in conductive liquid can cause corrosion and damage to the metal wires. The degree and duration of damage may vary in different tooth positions. The integrated structure is inconvenient for disassembly and replacement, and replacing all metal wires every time some are damaged results in material waste. Therefore, providing separate detachable electrical connector assemblies 3 for different tooth positions greatly facilitates replacement of damaged metal wires and saves material waste.

[0072] When the electrical connector 302 is damaged and needs to be replaced, first drain the conductive fluid from the conductive fluid hole 101, then remove the base 5 to fully expose the electrical connector assembly 3 at the bottom of the toothed seat 1, unscrew the damaged electrical connector assembly 3 and replace it with a new one.

[0073] The bottom of the dental arch seat 1 is also provided with several mounting blocks 105. The inner wall of the mounting block 105 is provided with mounting grooves 106, and the mounting grooves 106 are provided with mounting threads 107. The mounting screws 7 are matched with the mounting threads 107. The outer periphery of the base 5 and the mounting seat 6 are provided with mounting holes corresponding to the mounting grooves 106. The dental arch seat 1 can be installed on the base 5 alone or on both the base 5 and the mounting seat 6 at the same time by means of the mounting screws 7.

[0074] The outer periphery of the mounting base 6 matches the outer periphery of the base 5, and it is also provided with mounting holes corresponding to the mounting groove 106. The mounting screws 7 can pass through the mounting holes of the mounting base 6 and the base 5 in sequence and be threaded into the mounting groove 106 at the bottom of the dental arch seat 1. The mounting base 6 is provided with a magnetic suction device that matches the magnetic suction structure of the simulated head model training device, so that the dental arch seat 1 and the base 5 can be magnetically installed inside the simulated head model training device.

[0075] When the dental arch support 1 is installed alone on the base 5, the simulation training device provided by this invention can be used as an independent training device. When the dental arch support 1 is installed on both the base 5 and the mounting base 6, the simulation training device provided by this invention can be installed on the magnetic interface inside the simulated head model training device. The simulated head model training device simulates the oral cavity environment, and both the maxilla and mandible are equipped with magnetic interfaces, so two sets of the simulation training devices provided by this invention can be installed simultaneously.

[0076] Furthermore, such as Figure 6As shown, the upper part of the conductive assembly 4, installed inside the base 5, has the same number of contact electrodes 401 as the center of the tooth position hole at the bottom of the tooth seat 1; the front end of the conductive assembly 4 is provided with a connecting wire 402 extending out of the front end of the base 5. When the tooth seat 1 is installed on the base 5, the bottom surface of the mounting block 105 abuts against the upper surface of the conductive assembly 4, and the electrical contact post 302 in the electrical connection assembly 3 abuts against the contact electrodes 401. When the root canal instrument contacts the root of the extracted tooth 9, the conductive fluid receives the signal and connects to the root canal instrument in sequence through the electrical contact post 302 in the electrical connection assembly 3, the contact electrodes 401 of the conductive assembly 4, and the connecting wire 402.

[0077] The housing of the conductive component 4 is insulated, and only the contact electrodes 401 and the front end interface of the connecting wire 402 are conductive on the exposed part. Insulation is provided between different contact electrodes 401, and they are independently conductive to the connecting wire 402 to prevent short circuits.

[0078] like Figure 7 As shown, in use, the electrical connection component 3 is installed at the bottom of the electrical connection hole 103 corresponding to the tooth position hole of the dental arch seat 1; the conductive component 4 is installed in the base 5; the dental arch seat 1 with the electrical connection component 3 installed is installed on the base 5 and the mounting seat 6 with the conductive component 4 installed by the mounting screw 7. An appropriate amount of conductive liquid is injected into the tooth position hole required for training, and the silicone cover 2 is installed on the dental arch seat 1 by the silicone cover fixing pin. The extracted tooth 9 is inserted through the elastic hole 203 corresponding to the tooth position on the silicone cover 2, and the elastic cover 202 and the duckbill valve 204 are pushed down so that the lower part of the extracted tooth 9 extends into the conductive liquid hole 101, leaving only the crown part exposed above the silicone cover 2.

[0079] If performing extraoral simulation training, the root cannula can be directly connected for operation. If performing intraoral environment simulation training using the simulated head model, the mounting base 6 is installed on the magnetic interface inside the simulated head model. At this time, the extracted tooth 9 and the dental arch seat 1 are in an inclined state. The support sleeve 201, elastic cover 202, and duckbill valve 204 on the silicone cover 2 fill the gap between the extracted tooth 9 and the dental arch seat 1, sealing the conductive liquid inside the tooth position hole of the dental arch seat 1.

[0080] The root canal instrument's conductive wire is connected to the exposed connecting wire 402 of the conductive component 4. When the root canal instrument (such as a K file) comes into contact with the root of the extracted tooth, the conductive fluid receives the signal and connects to the root canal instrument in sequence through the electrical contact post 302 in the electrical contact component 3, the contact electrode 401 of the conductive component 4, and the connecting wire 402. The root canal instrument provides real-time feedback on the operation, helping students judge the depth and force of the operation.

[0081] Based on the aforementioned simulation training device for multi-tooth extracted root canal treatment, the present invention also provides a simulation training method for multi-tooth extracted root canal treatment, comprising the following steps:

[0082] S1. Equipment installation;

[0083] Install the silicone cap 2, tooth socket 1, electrical connection assembly 3, conductive assembly 4 and base 5 in sequence;

[0084] S2. Calibrate the conduction path to confirm that the conduction path is normal;

[0085] Add conductive fluid; inject an appropriate amount of conductive fluid (physiological saline) into the tooth position hole corresponding to the target tooth position of the dental arch seat 1. At this time, the bottom of the duckbill valve 204 is rolled up to prevent the conductive fluid from flowing back and overflowing.

[0086] Establish a conduction path for the root cannula; connect one end of the conduction wire of the root cannula to the conduction component 4; clamp the other end of the conduction wire of the root cannula onto the K file, so that the K file penetrates the silicone cap 2 and extends into the tooth position hole of the tooth seat 1 to contact the conductive liquid;

[0087] Debug the root probe, use the data displayed by the root probe to calibrate the conduction path, and eliminate any abnormalities in the conduction path;

[0088] S3, Handling abnormal conduction pathways;

[0089] When there is an abnormal electrical signal in the conduction path, it is necessary to first determine the abnormality, then handle the abnormality, and only after the abnormality is eliminated can subsequent operations be carried out.

[0090] The method for judging abnormal conduction pathways is as follows:

[0091] Move the K-file up and down and observe the data displayed on the root gauge.

[0092] If the electrical signal returns to normal after moving the K-file down, it is determined that the conductive fluid is insufficient.

[0093] If the electrical signal is still abnormal when the K-file is moved down to the bottom of the contact point, the metal conductive device is considered to be damaged.

[0094] The methods for handling abnormal conduction pathways are as follows:

[0095] If the abnormality is caused by insufficient conductive fluid, inject more conductive fluid into the tooth position hole until the K file moves up and the root canal shows normal data.

[0096] If the cause of the abnormality is damage to the metal conductive device, first replace the electrical connection assembly 3 of the corresponding tooth position; if the abnormality persists after replacing the electrical connection assembly 3, then replace the conductive assembly 4.

[0097] The steps for replacing electrical connection assembly 3 are as follows:

[0098] The conductive liquid is drawn out from the conductive liquid hole 101;

[0099] Remove base 5 to fully expose the bottom of tooth seat 1;

[0100] Loosen the electrical connection component 3 with the abnormal tooth position and replace it with a new electrical connection component 3.

[0101] S4. After recalibrating and finding no abnormalities, install the extracted tooth 9;

[0102] Select a suitable extracted tooth 9 and install it on the silicone cover 2 corresponding to the target tooth position of the dental arch seat 1;

[0103] The present invention provides a tooth arch seat 1 with multiple tooth positions, so that multiple extracted teeth 9 can be inserted simultaneously in one training session, and root canal treatment operations at different tooth positions can be completed continuously.

[0104] S5. Select training mode and start simulation training for multi-tooth extraction root canal treatment;

[0105] If you are conducting extraoral simulation training, you can start the training directly.

[0106] If intraoral simulation training is to be performed, the training device and the extracted tooth 9 can be installed in the magnetic interface of the simulated head model training device through the mounting seat 6, and then the training can be started.

[0107] This invention provides a multi-tooth position dental arch support 1 to provide basic support for the extracted tooth 9, and a silicone cap 2 with progressively enhanced elastic deformation capability to provide gradient elastic deformation support for the extracted tooth 9. This invention also provides a solution for disassembling and replacing metal guides for different tooth positions, which facilitates the partial removal and replacement of metal wires that have been corroded and damaged by long-term immersion in conductive liquid. This invention also provides a multi-tooth position extracted root canal treatment simulation training method, which can be applied to training operations for different tooth positions and different simulation scenarios, greatly improving the training effect.

[0108] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0109] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A simulation training device for multi-tooth extraction root canal treatment, characterized in that, include: A dental arch support (1) is provided with several tooth position holes; a silicone cap (2) is detachably and sealed on the upper part of the tooth position hole, and an electrical connection assembly (3) is detachably and sealed on the bottom of the tooth position hole; the silicone cap (2) and the electrical connection assembly (3) can form a sealed cavity inside the tooth position hole, and the sealed cavity is used to hold conductive liquid; the root of the extracted tooth (9) can penetrate the silicone cap (2) and extend into the corresponding tooth position hole and be immersed in the conductive liquid; The silicone cap (2) covering the portion of the tooth position hole is provided with different elastic gradients, providing elastic deformation support that increases from the outer periphery to the center of the tooth position hole; The dental arch support (1) is detachably mounted on the base (5), and a conductive assembly (4) is detachably mounted inside the base (5). A conductive circuit is provided inside the conductive assembly (4), and the conductive circuit connects the electrical connection assembly (3) and the root probe.

2. The simulation training device for multi-tooth extraction root canal treatment according to claim 1, characterized in that, The tooth position hole has three different inner diameter depth gradients from top to bottom; the upper part of the tooth position hole is a support hole (102) for providing basic support for the periphery of the extracted tooth (9); the middle to bottom part of the tooth position hole is a conductive liquid hole (101) for holding the conductive liquid; the bottom end of the tooth position hole is an electrical connection hole (103), and the outer periphery of the electrical connection hole (103) is provided with an electrical connection hole thread (104) for connecting with the electrical connection assembly (3).

3. The simulation training device for multi-tooth extraction root canal treatment according to claim 2, characterized in that, The bottom end of the silicone cap (2) is provided with a support sleeve (201) corresponding to the center of the tooth position hole. The outer periphery of the support sleeve (201) matches the inner periphery of the support hole (102), so that the bottom end of the silicone cap (2) is elastically engaged inside the tooth position hole. An elastic cap (202) is provided at the top inside the support sleeve (201), and an elastic hole (203) is provided at the center of the elastic cap (202). A duckbill valve (204) is provided at the bottom of the elastic cap (202) where it connects with the support sleeve (201).

4. The simulation training device for multi-tooth extraction root canal treatment according to claim 3, characterized in that, The elastic deformation capacity of the silicone cap (2) covering the outer periphery of the tooth position hole is lower than that of the support sleeve (201), and the elastic deformation capacity of the support sleeve (201) is less than that of the elastic cap (202) and the duckbill valve (204). When the extracted tooth (9) penetrates the elastic hole (203) and extends into the tooth position hole, the elastic cap (202) and the duckbill valve (204) form an elastic fill between the inner wall of the support sleeve (201) and the outer periphery of the extracted tooth (9).

5. The simulation training device for multi-tooth extraction root canal treatment according to claim 2, characterized in that, The number of electrical connection components (3) is the same as the number of tooth holes; the electrical connection component (3) includes an insulating sleeve (301), and the inner circumference of the insulating sleeve (301) is provided with an insulating sleeve thread (304) that matches the thread (104) of the electrical connection hole, so that the electrical connection component (3) can be thread-sealed and installed at the bottom of the electrical connection hole (103). The insulating sleeve (301) has a sliding cavity in the center, and the spring (303) is provided in the sliding cavity. The spring (303) is sleeved on the outer periphery of the electrical connector (302), so that the electrical connector (302) can slide and extend relative to the insulating sleeve (301) through the sliding cavity. The electrical connector (302) is made of conductive material.

6. The simulation training device for multi-tooth extraction root canal treatment according to claim 5, characterized in that, The upper part of the conductive component (4) is provided with the same number of contact electrodes (401) corresponding to the center of the tooth position hole; the front end of the conductive component (4) is provided with a connecting wire (402) extending out of the front end of the base (5); when the tooth seat (1) is installed on the base (5), the electrical contact post (302) in the electrical contact component (3) abuts against the contact electrode (401); When the root canal instrument contacts the root of the extracted tooth (9), the conductive fluid receives the signal and connects to the root canal instrument in sequence through the electrical terminal (302) in the electrical connection assembly (3), the contact electrode (401) of the conductive assembly (4), and the connecting wire (402).

7. The simulation training device for multi-tooth extraction root canal treatment according to claim 1, characterized in that, The dental arch support (1) is provided with multiple fixing holes (108) on the part that is different from the tooth position hole; the silicone cover (2) is provided with a silicone cover fixing hole (205) corresponding to the fixing hole (108), and the silicone cover fixing nail (8) passes through the silicone cover fixing hole (205) and is installed in the fixing hole (108) so that the silicone cover (2) is installed on the dental arch support (1).

8. The simulation training device for multi-tooth extraction root canal treatment according to claim 1, characterized in that, The bottom of the dental seat (1) is also provided with a number of mounting blocks (105). The inner wall of the mounting block (105) is provided with a mounting groove (106). The mounting groove (106) is provided with a mounting thread (107). The mounting screw (7) matches the mounting thread (107). The outer periphery of the base (5) is provided with mounting holes corresponding to the mounting groove (106). The dental seat (1) can be installed on the base (5) through the mounting screw (7).

9. The simulation training device for multi-tooth extraction root canal treatment according to claim 8, characterized in that, It also includes a mounting base (6), the outer periphery of which matches the outer periphery of the base (5), and is also provided with mounting holes corresponding to the mounting groove (106). The mounting screw (7) can be threaded through the mounting holes of the mounting base (6) and the base (5) in sequence and installed in the mounting groove (106) at the bottom of the dental arch seat (1). The mounting base (6) is provided with a magnetic suction device that matches the magnetic suction structure of the simulated head model training device, so that the dental arch seat (1) and the base (5) can be magnetically installed inside the simulated head model training device.

10. A method for simulating multi-tooth extraction root canal treatment using the training device according to claim 1, comprising the following steps: S1. Equipment Installation: Install the silicone cap (2), the dental arch seat (1), the electrical connection assembly (3), the conductive assembly (4), and the base (5) in sequence; S2. Calibrate the conduction path to confirm it is functioning correctly: Add conductive liquid; inject an appropriate amount of conductive liquid into the tooth position hole; Establish a conduction path for the root cannula; connect one end of the conduction wire of the root cannula to the conduction component (4); clamp the other end of the conduction wire of the root cannula onto the K file, so that the K file penetrates the silicone cap (2) and extends into the tooth position hole of the dental arch seat (1) to contact the conductive liquid; Debug the root probe, use the data displayed by the root probe to calibrate the conduction path and eliminate abnormalities in the conduction path; S3. Handling abnormal conduction pathways: When the electrical signal in the conduction path is abnormal, the abnormality should be judged first, then the abnormality should be handled, and the subsequent operation should be carried out after the abnormality is eliminated. The method for judging abnormal conduction pathways is as follows: Move the K-file up and down and observe the data displayed on the root gauge. If the electrical signal returns to normal after the K-file is moved down, it is determined that the conductive fluid is insufficient. If the electrical signal is still abnormal when the K-file is moved down to the bottom of the contact point, the metal conductive device is considered to be damaged. The methods for handling abnormal conduction pathways are as follows: If the abnormality is caused by insufficient conductive fluid, inject more conductive fluid into the tooth position hole until the K file moves up and the root canal shows normal data. If the cause of the abnormality is damage to the metal conductive device, replace the electrical connection assembly (3) at the corresponding tooth position first; if the abnormality persists after replacing the electrical connection assembly (3), replace the conductive assembly (4). S4. After recalibrating without any abnormalities, install the extracted tooth (9). S5. Select training mode and start simulation training for multi-tooth extraction root canal treatment.

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