A dental portable device for dental replantation

Abstract

The application relates to a portable tooth device for tooth replantation, belonging to the medical technical field. The portable tooth device for tooth replantation comprises a base, a recess is formed in the base, a recessed area corresponding to a tooth tip is arranged at the bottom of the recess, one side of the base is in an open state, a first fixing rod is arranged in the recess of the base, a first slot for fixing a tooth crown is formed in the first fixing rod, a second fixing rod is arranged in the recess of the base, a side wall is used for closing the opening of the base, a third fixing rod is arranged on the side wall, and a top cover comprises a rear tooth top cover and a front tooth top cover used for cutting roots; the base, the first fixing rod, the second fixing rod and the third fixing rod matched with the tooth crown shape are customized, the tooth crown is fixed on four sides, the fixation of the tooth crown is more firm and close, the stability of the in-vitro operation of the extracted diseased tooth is ensured, the in-vitro operation time is further shortened, and mechanical damage to the periodontal membrane is avoided; the assembled device is in a close state.

Description

Technical Field

[0001] This application relates to the field of medical technology, and in particular to a portable device for tooth replantation. Background Technology

[0002] For cases where root canal treatment / retreatment has failed, or where microsurgical apical surgery is unsuitable or has failed due to various factors, tooth replantation is one method for preserving the affected tooth. Recent systematic reviews and meta-analyses show that the survival rate of teeth undergoing intentional tooth replantation (transplantation) is as high as 90%. In intentional tooth replantation (transplantation), the affected tooth is stained with methylene blue in vitro, and the root surface is observed under a microscope for cracks, missed root canals, isthmuses, etc. In vitro apical resection and backward preparation and filling are then performed. The time the extracted tooth remains in vitro, whether the periodontal ligament is damaged, and the degree of damage are important factors affecting the survival rate of the replanted tooth. After extraction, the tooth should be preserved in a liquid medium that maintains the activity of the periodontal ligament. HBSS (Hank's balanced salt solution) is the best preservation solution for avulsed teeth recommended by the American College of Endodontists.

[0003] Currently, in clinical practice, the crown of the affected tooth is often held in place with saline-soaked gauze or clamps, and then inverted for a series of procedures such as apical resection. Both methods have various drawbacks, such as the periodontal ligament not being effectively preserved, affecting cell activity, and the poor stability of the clamping, which increases the time spent outside the body and may damage the periodontal ligament if not handled carefully, thus affecting the prognosis of the replanted tooth. Summary of the Invention

[0004] This application provides a portable device for tooth replantation surgery to address the current problems in the clinical preservation and treatment of extracted teeth in related technologies.

[0005] This application provides a portable dental device for tooth replantation surgery, including... The base has a groove, the bottom of which has a recessed area corresponding to the tooth cusp, and one side of the base is open. The first fixing rod is disposed in the groove of the base, and the first fixing rod has a first slot for fixing the tooth crown; The second fixing rod is disposed in the groove of the base, and the second fixing rod has a second groove that mates with the first groove. Sidewalls, which are used to close the openings in the base; The third fixing rod is disposed on the side wall, and the third fixing rod has a third groove that matches the first groove and the second groove; The top cover includes a posterior tooth top cover and an anterior tooth top cover for root resection.

[0006] In some embodiments, the end of the first fixing rod away from the first slot is perpendicularly connected to the inner wall of the groove; The end of the second fixing rod away from the second slot is perpendicularly connected to the inner wall of the groove; The end of the third fixing rod away from the third slot is perpendicularly connected to the side wall.

[0007] In some embodiments, the first fixing rod and the second fixing rod are arranged perpendicularly; The third fixing rod corresponds to the second fixing rod.

[0008] In some embodiments, the first, second, and third notches surround the outer side of the crown and match the crown shape.

[0009] In some embodiments, one end of the base opening is provided with a socket; The side wall near the third fixing rod is provided with a plug block that mates with the socket.

[0010] In some embodiments, an extension plate extends outward from the bottom of one end of the base opening.

[0011] In some embodiments, a posterior tooth root cutting platform is provided on the posterior tooth crown.

[0012] In some embodiments, the posterior tooth root cutting platform has a first opening that penetrates the posterior tooth crown.

[0013] In some embodiments, the anterior tooth crown has a second opening that penetrates the anterior tooth crown.

[0014] In some embodiments, the above structures are made of transparent materials.

[0015] This application provides a portable tooth replantation device. Through a customized base and first, second, and third fixing rods that match the crown's shape, the device securely wraps around the crown from all sides, ensuring a tighter and more snug fit. This guarantees the stability of the extracted tooth during external manipulation, further shortens the manipulation time, and avoids mechanical damage to the periodontal ligament. The assembled device is in a sealed state, providing the necessary liquid storage conditions for the extracted tooth, which helps maintain the activity of periodontal ligament cells. The posterior and anterior tooth caps allow the apical portion of the root to be removed to be exposed for root resection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure provided for an embodiment of this application; Figure 2 This is a schematic diagram of the sidewall provided in the embodiments of this application; Figure 3 This is a structural schematic diagram of the posterior tooth (three teeth) crown provided in the embodiments of this application; Figure 4 This is a structural schematic diagram of the posterior tooth (two teeth) top cap provided in the embodiments of this application; Figure 5 This is a schematic diagram of the opening structure provided by the posterior tooth crown in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the anterior tooth (single root) crown provided in the embodiments of this application; Figure 7 This is a schematic diagram of the opening structure provided by the anterior tooth crown in the embodiments of this application.

[0018] 1. Base; 2. First fixing rod; 3. Second fixing rod; 4. Recessed area; 5. Second groove; 6. First groove; 7. Side wall; 8. Third fixing rod; 9. Third groove; 10. Posterior tooth top cover; 11. Posterior tooth root cutting platform; 12. First opening; 13. Anterior tooth top cover; 14. Second opening. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] This application provides a portable device for tooth replantation surgery, which can solve the problem of poor clinical preservation and treatment of extracted teeth.

[0021] See Figure 1-4 and Figure 6 As shown, this application provides a portable dental device for tooth replantation surgery, including... The base consists of 1, 2, 3, 7, 8, and 1.

[0022] The base 1 is used to place the affected tooth. The base 1 has a groove with a recessed area 4 corresponding to the cusp of the affected tooth. The cusp fits into the recessed area 4 to further fix the affected tooth. The base 1 has an opening on one side, and the side wall 7 is used to close the opening of the base 1. After the affected tooth is removed, its crown is clamped and its direction is adjusted to correspond with the first groove 6 on the first fixing rod 2 and the second groove 5 on the second fixing rod 3 and the recessed area 4 at the bottom of the base for initial fixation. Then, the side wall 7 is combined with the base 1 to close the opening of the base 1. At the same time, the third fixing rod 8 on the side wall 7 is oriented towards the affected tooth, and the third groove 9 on the third fixing rod 8 is fixed to the affected tooth. The third groove 9 cooperates with the second groove 5 and the first groove 6 to wrap around the crown of the affected tooth and clamp it tightly.

[0023] The shapes of the first groove 6 on the first fixing rod 2, the second groove 5 on the second fixing rod 3, the third groove 9 on the third fixing rod 8, and the recessed area 4 corresponding to the tooth cusp are all matched to the shape of the affected tooth.

[0024] The top cover includes a posterior tooth top cover 10 and an anterior tooth top cover 13 for root cutting. The posterior tooth top cover 10 is inserted parallel from top to bottom, and the root apex is exposed from the first opening 12. During the whole process, care should be taken to avoid excessive deflection of the posterior tooth top cover 10, which could damage the periodontal ligament. The device is filled with HBSS. Then, the length of the exposed posterior tooth root apex from the first opening 12 is about 3 mm from the posterior tooth root cutting platform 11, and the direction is basically perpendicular to the posterior tooth root cutting platform 11. The root can be cut vertically outside the body using a high-speed bur along the height of the posterior tooth root cutting platform 11.

[0025] The design of the anterior tooth crown 13 is similar to that of the posterior tooth crown 10, but there is no dedicated root cutting platform. Only a second opening 14 is designed in the center. After the extracted anterior tooth crown is fixed, the root tip 3mm is also exposed from the second opening 14 and is perpendicular to the plane of the anterior tooth crown 13. The high-speed bur directly performs vertical root cutting along the plane of the anterior tooth crown 13.

[0026] In some alternative embodiments, see Figure 1-2 As shown, the end of the first fixing rod 2 away from the first groove 6 is perpendicularly connected to the inner wall of the groove, the end of the second fixing rod 3 away from the second groove 5 is perpendicularly connected to the inner wall of the groove, and the end of the third fixing rod 8 away from the third groove 9 is perpendicularly connected to the side wall 7, so that the first fixing rod 2, the second fixing rod 3 and the third fixing rod 8 are parallel to the bottom of the groove.

[0027] In this embodiment, the end of the first fixing rod 2 away from the first groove 6 is perpendicularly connected to the inner wall of the groove, the end of the second fixing rod 3 away from the second groove 5 is perpendicularly connected to the inner wall of the groove, and the end of the third fixing rod 8 away from the third groove 9 is perpendicularly connected to the side wall 7, so that the first fixing rod 2, the second fixing rod 3, and the third fixing rod 8 are perpendicular to each other, and the second fixing rod 3 and the third fixing rod 8 correspond to each other, so that the first groove 6, the second groove 5, and the third groove 9 form a closed structure surrounding the periphery of the affected tooth, thereby fixing the affected tooth.

[0028] In this embodiment, the first groove 6, the second groove 5, the third groove 9, and the bottom recessed area 4 corresponding to the tooth cusp surround the outer side of the crown and match the shape of the crown.

[0029] In some alternative embodiments, see Figure 1-2 As shown, the base 1 has slots on both sides of one end of the opening, and the slots cooperate with the side wall 7 so that the side wall 7 can be inserted into the base 1.

[0030] The side wall 7 is provided with a plug at one end near the third fixing rod 8, which can be engaged with the socket. The side wall 7 is inserted into the socket through the plug. The plug and the socket are in an interference fit to prevent the side wall 7 from loosening and slipping out of the socket, or from shaking and causing the third groove 9 on the third fixing rod 8 to be unable to fix the affected tooth.

[0031] In some alternative embodiments, see Figure 1 As shown, an extension plate extends outward from the bottom of one end of the opening of the base 1. After the side wall 7 is inserted into the base 1, the extension plate is located at the bottom of the side wall 7, so that the extension plate can limit the side wall 7 to prevent it from generating downward force and provide support.

[0032] In some alternative embodiments, see Figure 3-5 As shown, a posterior tooth root cutting platform 11 is provided on the posterior tooth crown 10 with an upward protrusion, which exposes the root tip of the posterior tooth for easy root cutting.

[0033] In this embodiment, the posterior tooth root cutting platform 11 has a first opening 12 that penetrates the posterior tooth top cover 10, and the posterior tooth root tip protrudes from the first opening 12, with the protruding posterior tooth root tip being about 3mm from the posterior tooth root cutting platform 11.

[0034] In some alternative embodiments, see Figure 6-7 As shown, a second opening 14 is provided on the anterior tooth crown 13, which penetrates the anterior tooth crown 13. The root tip of the anterior tooth is exposed by 3mm through the second opening 14, and then the root is cut.

[0035] The working principle and process of this application: Based on the preoperative CBCT data, a corresponding base 1 was designed. The lengths of the first fixing rod 2, the second fixing rod 3, and the third fixing rod 8, as well as the shapes of the first groove 6, the second groove 5, the third groove 9, and the concave area 4 corresponding to the tooth cusp, were all designed to adapt to the shape and size of the crown of the affected tooth in order to achieve the purpose of fixing the affected tooth. After the affected tooth was removed, its crown was clamped and its direction was adjusted to correspond with the second groove 5, the first groove 6, and the concave area 4 corresponding to the tooth cusp for initial fixation. Then, the detachable sidewall 7 was combined with the base 1, and the third groove 9 was matched with the crown of the affected tooth to strengthen the fixation. After the affected tooth was fixed, HBSS was added in time to preserve the periodontal ligament cell activity.

[0036] The posterior tooth cap 10 is inserted parallel to the top and bottom, and the root apex is exposed from the first opening 12. During the whole process, care should be taken to avoid excessive deflection of the cap and damage to the periodontal ligament. The device should be filled with HBSS. The length of the posterior tooth root apex exposed from the first opening 12 is about 3mm from the posterior tooth root cutting platform 11, and the direction is basically perpendicular to the posterior tooth root cutting platform 11. The root can be cut vertically outside the body using a high-speed fissure drill at the height of the posterior tooth root cutting platform 11.

[0037] The design of the anterior tooth crown 13 is similar to that of the posterior tooth crown 10, but there is no dedicated root cutting platform. Only a second opening 14 is designed in the center. After the extracted anterior tooth crown is fixed, the root tip 3mm is also exposed from the second opening 14 and is perpendicular to the plane of the anterior tooth crown 13. The high-speed bur directly performs vertical root cutting along the plane of the anterior tooth crown 13.

[0038] After the root pruning is completed, methylene blue staining is performed in vitro to observe the condition of the tooth root, as well as preparation and filling for back filling. During the process, attention should be paid to the HBSS solution content in the device, and it should be replenished in a timely manner.

[0039] The entire device is made of transparent material, allowing for constant monitoring of the liquid level for timely replenishment, as well as observation of the tooth root direction and angle.

[0040] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0041] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A portable device for tooth reimplantation, characterized in that, include: The base (1) has a groove, and the bottom of the groove has a recessed area (4) corresponding to the tooth tip. One side of the base (1) is open. The first fixing rod (2) is disposed in the groove of the base (1), and the first fixing rod (2) has a first slot (6) for fixing the crown. The second fixing rod (3) is set in the groove of the base (1), and the second fixing rod (3) has a second groove (5) that cooperates with the first groove (6); Sidewall (7), said sidewall (7) is used to close the opening of the base (1); The third fixing rod (8) is provided on the side wall (7), and the third fixing rod (8) is provided with a third groove (9) that matches the first groove (6) and the second groove (5). The top cover includes a posterior tooth top cover (10) and an anterior tooth top cover (13) for root cutting. The first groove (6), the second groove (5) and the third groove (9) surround the outer side of the crown and match the shape of the crown; The posterior tooth top cover (10) is provided with a posterior tooth root cutting platform (11). The posterior root cutting platform has a first opening (12) that penetrates the posterior tooth top cover (10); the posterior tooth root tip protrudes from the first opening (12), and the protruding posterior tooth root tip is 3mm away from the posterior tooth root cutting platform (11).

2. The portable tooth replantation device as described in claim 1, characterized in that: The end of the first fixing rod (2) away from the first slot (6) is perpendicularly connected to the inner wall of the groove; The end of the second fixing rod (3) away from the second slot (5) is perpendicularly connected to the inner wall of the groove; The end of the third fixing rod (8) away from the third slot (9) is perpendicularly connected to the side wall (7).

3. The portable tooth replantation device as described in claim 2, characterized in that: The first fixing rod (2) and the second fixing rod (3) are arranged in a perpendicular direction; The third fixing rod (8) corresponds to the second fixing rod (3).

4. The portable tooth replantation device as described in claim 1, characterized in that: The base (1) has an opening at one end; The side wall (7) near the third fixing rod (8) is provided with a plug that mates with the socket.

5. The portable tooth replantation device as described in claim 1, characterized in that: The base (1) has an extension plate extending outward from the bottom of one end of the opening.

6. The portable tooth replantation device as described in claim 1, characterized in that: The anterior tooth top cover (13) has a second opening (14) that passes through the anterior tooth top cover (13).

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