Dental instrument

Abstract

The dental instrument is worn on the maxillary dentition and comprises a shell-shaped body and a palate device connected with the shell-shaped body, the shell-shaped body comprises a first section and a second section, the first section is provided with a tooth containing cavity for containing at least one tooth in a left rear tooth area, and the second section is provided with a tooth containing cavity for containing at least one tooth in a right rear tooth area. The second section is provided with a tooth accommodating cavity for accommodating at least one tooth in the rear tooth area on the right side; one side of the palate device is connected to the lingual side gingival margin of the first section, the other side of the palate device is connected to the lingual side gingival margin of the second section, and the whole palate device is arranged in an arch shape in the palate direction; a storage device used for containing dressing is arranged at the preset position, corresponding to the palate wound, of the palate device, the side, close to the palate, of the storage device is of an opening structure, the dressing covers and is connected to the palate wound in a pressed mode in the wearing process, and dressing treatment can be conveniently conducted on the palate wound.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, more specifically to the field of dental instruments, and particularly to a dental instrument designed to assist in oral treatment, especially in the care of palate wounds. Background Technology

[0002] In clinical dentistry, some cases require surgery through a palatal incision before orthodontic treatment. Examples include cleft palate surgery, extraction of supernumerary teeth on the palatal side, treatment of various types of cysts and tumors, transpalatal skull base surgery, and using the palate as a soft tissue donor site. These surgeries create a wound in the palate. After surgery, specialized sutures are used to intermittently or continuously suture the mucosa around the bleeding point to close the wound area and reduce or stop bleeding. Post-suture compression therapy with medication is still necessary. These wounds require proper care to stop bleeding, promote healing, and reduce the risk of infection. Common methods for stopping bleeding and promoting wound healing include: one method involves gently pressing the bleeding site with sterile gauze or cotton swabs for about 10 minutes until bleeding stops. However, this method requires continuous pressure and can easily cause discomfort such as hand fatigue for the patient. Another method involves applying appropriate hemostatic drugs, such as adrenaline or noradrenaline, to the wound site multiple times under the guidance of a doctor. These drugs constrict blood vessels, thereby controlling bleeding. However, it is important to avoid excessive use to prevent local tissue ischemia. This method requires multiple applications and must be performed under the guidance of a doctor or by the doctor themselves; patients cannot manage this independently. Another traditional wound care method typically involves applying dressings directly to the wound, but this method still suffers from problems such as inconvenient fixation and a tendency to fall off.

[0003] Given the above problems, it is particularly important to develop a simple, convenient, self-operated dental instrument that can effectively fix dressings and adapt to the oral environment. Utility Model Content

[0004] The technical problem solved by this utility model is to overcome the defects of the existing technology and provide a dental instrument including a shell-shaped body and a palatal device connected to the shell-shaped body. The palatal device is arched in the direction of the palate and a storage device for placing dressings is provided on the arched palatal device. The dental instrument has a simple structure. Before wearing, a dressing carrier (such as cotton cloth) soaked in medicine is placed in the storage device. The dental instrument is simple, convenient, self-operated and can effectively fix the dressing and adapt to the oral environment. After the patient wears it, the dressing can continuously treat the wound, effectively avoid wound infection and promote wound healing.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A dental instrument, worn on the maxillary dentition, includes a shell-shaped body and a palatal device connected to the shell-shaped body. The shell-shaped body includes a first segment and a second segment. The first segment has a tooth receiving cavity for accommodating at least one tooth in the left posterior region, and the second segment has a tooth receiving cavity for accommodating at least one tooth in the right posterior region. One side of the palatal device is connected to the lingual gingival margin of the first segment, and the other side is connected to the lingual gingival margin of the second segment. The palatal device is arched in the direction of the palate. The palatal device has a storage device for accommodating dressings at a predetermined position corresponding to the location of a palatal wound. The side of the storage device near the palate is open. When worn, the dressing covers and presses against the palatal wound.

[0007] Preferably, the storage device and the palatal device are integrally formed, wherein the storage device is a groove formed by the portion of the palatal device at the predetermined position being recessed in a direction away from the palate.

[0008] Preferably, the outer surface of the storage device facing the tongue is a smooth arc or curved surface.

[0009] Preferably, the inner surface of the bottom wall of the storage device is arc-shaped, and the arc-shaped surface protrudes towards the upper jaw at the predetermined position.

[0010] Preferably, the storage device is provided with a plurality of vent holes penetrating the inner and outer surfaces of the storage device.

[0011] Preferably, the coverage area of ​​the opening structure is greater than the surface area of ​​the palatal wound, and the depth of the storage device is greater than or equal to 3 mm and less than or equal to 20 mm.

[0012] Preferably, when worn, the edge of the opening structure and the edge of the palate wound are set at a first preset distance in the horizontal direction, wherein the first preset distance is greater than or equal to 0 and less than or equal to 10 mm.

[0013] Preferably, the surface of the palate device facing the upper palate is set at a second preset distance in the vertical direction from the patient's upper palate, wherein the second preset distance is greater than or equal to 0 and less than or equal to 20 mm.

[0014] Preferably, the second preset distance is 0mm, the palatal device is fitted to the palate, and the surface of the palatal device facing the palate has a structure that matches the shape of the palatal folds of the palate.

[0015] Preferably, the tooth receiving cavity is further provided with a retention portion that can prevent the shell-like body from falling off, wherein the retention portion is: a groove structure formed by protruding from the buccal side or lingual side of the tooth receiving cavity toward the distal tooth, the groove structure cooperating with a retention attachment adhered to the tooth surface; and / or, an extension portion formed by extending from the gingival margin of the tooth receiving cavity toward the gingiva and covering part of the gingiva.

[0016] Preferably, the retaining portion is disposed on the side adjacent to the predetermined position.

[0017] Preferably, the storage device and the palatal device are separate structures, and the top surface of the storage device is open; wherein:

[0018] The storage device has a first connecting portion on its bottom surface, and the palatal device has a second connecting portion on its side facing the hard palate. The storage device is connected to the palatal device through the cooperation of the first connecting portion and the second connecting portion; or,

[0019] The palatal device has a through-hole structure at the predetermined position that connects to the storage device. The edge of the through-hole structure is provided with a third connecting part, and the side of the storage device near the opening end is provided with a fourth connecting part that cooperates with the third connecting part. The storage device is connected to the palatal device through the cooperation of the third connecting part and the fourth connecting part.

[0020] Preferably, the palatal device and the shell-shaped body are integrally formed; or, the palatal device and the shell-shaped body are fixedly connected by bonding, welding, or radiation cross-linking; or, the palatal device and the shell-shaped body are detachably connected.

[0021] Preferably, the shell-like body further includes a third segment connected between the first segment and the second segment, the third segment being used to accommodate teeth in the anterior region, wherein the distal end on the left side of the third segment is connected to the mesial end of the first segment, and the distal end on the right side of the third segment is connected to the mesial end of the second segment.

[0022] Preferably, the tooth storage cavity layout of the shell-shaped body is consistent with the tooth layout of the target orthodontic stage. When worn, the shell-shaped body can move the patient's teeth from the initial tooth layout to the tooth layout of the target orthodontic stage.

[0023] Compared with the prior art, the present invention, by adopting the above technical solution, has at least one of the following beneficial effects:

[0024] (1) The dental instrument provided by this utility model can be stably worn on the maxillary dentition. By setting a shell-shaped body and a palatal device, a reliable platform is provided for the placement of dressings. At the same time, the arched design of the palatal device can better fit the shape of the palate in the oral cavity and improve wearing comfort. The storage device allows the dressing to stably cover and press against the palatal wound, promote wound healing, and avoid the problem of dressings falling off easily in traditional methods.

[0025] (2) The dental instrument provided by this utility model has a storage device and a palatal device that are integrally formed, specifically a groove formed by the palatal device at a predetermined position recessed in a direction away from the palate; this integrally formed structural design simplifies the manufacturing process, improves the stability and durability of the overall structure, and the groove facilitates the placement and fixation of dressings, ensuring the stability of the storage device.

[0026] (3) The dental instrument provided by this utility model improves the wearing comfort and reduces the stimulation of oral soft tissue by setting the outer surface of the storage device facing the tongue as a smooth arc or curved surface, thereby avoiding oral discomfort or damage caused by the rough surface of the instrument. Attached Figure Description

[0027] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same numerical reference numerals are denoted as similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0028] Figure 1 This is a front view of the dental instrument in Embodiment 1 of this utility model.

[0029] Figure 2 This is a three-dimensional structural diagram of the dental instrument in Embodiment 1 of this utility model;

[0030] Figure 3 This is a cross-sectional structural diagram of a storage device and a palate device according to Embodiment 1 of this utility model;

[0031] Figure 4 A cross-sectional view of another storage device and palate device in Embodiment 1 of this utility model;

[0032] Figure 5 This is a cross-sectional structural schematic diagram of another storage device and palate device in Embodiment 1 of this utility model;

[0033] Figure 6 This is a front view of another dental instrument in Embodiment 1 of this utility model;

[0034] Figure 7This is a front view of another dental instrument according to Embodiment 1 of this utility model;

[0035] Figure 8 This is a front view of another dental instrument in Embodiment 1 of the present invention.

[0036] Figure 9 This is a schematic diagram of the structure of a dental instrument with a retention part in Embodiment 1 of this utility model;

[0037] Figure 10 This is a cross-sectional structural diagram of the engagement between the retention part and the retention attachment on the tooth surface in Embodiment 1 of this utility model.

[0038] Figure 11 This is a schematic diagram of the structure of a dental instrument with another retention part in Embodiment 1 of this utility model;

[0039] Figure 12 This is a schematic diagram of the structure of a dental instrument with a retention part in Embodiment 1 of this utility model;

[0040] Figure 13 This is a schematic diagram of the structure of a dental instrument in Embodiment 2 of this utility model;

[0041] Figure 14 This is a schematic diagram of the structure of another dental instrument in Embodiment 2 of this utility model;

[0042] Figure 15 for Figure 14 A magnified schematic diagram of the storage device;

[0043] Figure 16 for Figure 15 Side view of the storage device;

[0044] Figure 17 This is a schematic diagram of the structure of a dental instrument in Embodiment 3 of this utility model;

[0045] Figure 18 This is a schematic diagram of another dental instrument in Embodiment 3 of this utility model. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of the invention. However, the technical solutions claimed by this utility model can be implemented even without these technical details and with various variations and modifications based on the following embodiments. The division of the various embodiments below is for ease of description and should not constitute any limitation on the specific implementation of this utility model.

[0047] The directional terms "up," "down," "left," and "right" used in this document refer to the directions shown in the accompanying drawings and do not imply any specific limitation. Unless otherwise explicitly stated or limited, the term "connection" in this document should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part of a structure. It can refer to a direct connection or an indirect connection through an intermediate medium.

[0048] The term "posterior tooth region" mentioned in the various embodiments of this utility model is defined according to the classification of teeth in the 2nd edition of "Introduction to Stomatology" published by Peking University Medical Press, pages 36-38. It includes premolars and molars, teeth marked as 4-8 using the FDI notation, and teeth marked as 1-3 using the FDI notation for the anterior tooth region. The teeth in the anterior tooth region include the central incisors, lateral incisors, and canines.

[0049] As described in the background art, for patients who have undergone surgery on the palate and have wounds in the palate, the current common practices for postoperative hemostasis and healing include pressing the wound for about 10 minutes under the guidance of a doctor; applying medication to the wound multiple times in appropriate amounts, relying on the doctor; or directly applying a dressing to the wound. However, as mentioned in the background art, these methods are all limited, either inconvenient to operate or the dressing is not securely fixed. Therefore, this application provides a dental instrument worn on the maxillary dentition, including a shell-shaped body and a palatal device connected to the shell-shaped body. The shell-shaped body includes a first region. The palatal device comprises a first segment and a second segment. The first segment has a tooth receiving cavity for accommodating at least one tooth in the left posterior region, and the second segment has a tooth receiving cavity for accommodating at least one tooth in the right posterior region. One side of the palatal device is connected to the lingual gingival margin of the first segment, and the other side is connected to the lingual gingival margin of the second segment. The palatal device is arched in the direction of the hard palate. A storage device for accommodating dressings is provided at a predetermined position corresponding to the location of the hard palate wound. The side of the storage device near the hard palate is open. When worn, the dressing covers and presses against the hard palate wound.

[0050] The following will provide a detailed explanation with reference to the illustrations.

[0051] Example 1

[0052] Please refer to Figure 1 and Figure 2 As shown, the dental instrument 100 of this application includes a shell-shaped body 1 and a palatal device 2 connected to the shell-shaped body 1. The shell-shaped body 1 includes a first segment 11 and a second segment 12. The first segment 11 has a tooth receiving cavity 10 for accommodating teeth 4 to 8 in the left posterior region, and the second segment 12 has a tooth receiving cavity 10 for accommodating teeth 4 to 8 in the right posterior region. The first segment 11 and the second segment 12 are connected by the two sides of the palatal device 2. In other embodiments, please refer to... Figures 6 to 8 As shown, the first segment 11 and the second segment 12 can be connected in the anterior tooth region by a connecting segment 5. The connecting segment 5 makes the dental instrument 100 more stable. Specifically, the connecting segment 5 can be a lingual curved segment located on the lingual side of the patient's anterior teeth. Figure 6 As shown), the lingual curved segment can have a curved segment that matches the lingual contour of the patient's anterior teeth. During wear, this can, on the one hand, guide the accurate placement of the dental instrument 100; on the other hand, it can also prevent lingual tilting. The connecting segment 5 can also be a labial curved segment located on the labial side of the patient's anterior teeth. Figure 7 As shown), the labial curved segment can have a curved segment that matches the labial contour of the patient's anterior teeth. During wear, this can, on the one hand, guide the accurate placement of the dental instrument 100; on the other hand, it can also prevent labial tilting. The connecting segment 5 can also be a segment simultaneously provided with curved segments on both the lingual and labial sides of the patient's anterior teeth. Figure 8 As shown), it can guide the accurate wearing of the dental instrument 100; the core function of the first section 11 and the second section 12 is to provide the palatal device 2 with a retention function on the patient's teeth, and whether or not there is a connection between the first section 11 and the second section 12 with or without the connecting section 5 is within the scope of protection of this application.

[0053] The first segment 11 and the second segment 12 are configured to connect the palatal device 2. Therefore, the structures of the first segment 11 and the second segment 12 that enable the palatal device 2 to be stably connected between the first segment 11 and the second segment 12 are both within the scope of protection of this application. For example, the first segment 11 may only include a tooth accommodating the left posterior tooth region, and the second segment 12 may include several teeth accommodating the right posterior tooth region; or, the first segment 11 may only include several teeth accommodating the left posterior tooth region, and the second segment 12 may include a tooth accommodating the right posterior tooth region.

[0054] Further explanation: one side of the palatal device 2 is connected to the lingual gingival margin of the first segment 11, and the other side of the palatal device 2 is connected to the lingual gingival margin of the second segment 12. The palatal device 2 is arched towards the hard palate. The palatal device 2 and the shell-like body 1 can be integrally molded, which simplifies fabrication and improves overall stability and durability. In another embodiment, the palatal device 2 and the shell-like body 1 can also be separate structures, meaning they can be fabricated separately. This provides more flexible options for combining the dental instrument 100, improving its adaptability and practicality. For example, the palatal device 2 and the shell-like body 1 can be made from the same or different materials. After processing, more flexible connection methods can be selected according to clinical needs, such as bonding, welding, or radiation cross-linking. Alternatively, the design of the connecting parts can allow the palatal device 2 and the shell-shaped body 1 to be connected in a detachable manner, such as snap-fit, threaded connection, tenon and mortise connection, etc.; this is flexible and diverse; if the palatal device 2 or the shell-shaped body 1 is damaged, only the damaged palatal device 2 or the shell-shaped body 1 needs to be replaced, without the need for a complete replacement, which can save costs while providing flexibility.

[0055] Further explanation: The palatal device 2 is provided with a storage device 3 at a predetermined position corresponding to the location of the palatal wound. The predetermined position, as described in this application, is the position projected onto the palatal device 2 after wearing. The storage device 3 has an open structure on the side near the palate. During use, the dressing is placed inside the storage device 3. When the dental instrument 100 of this application is worn, the dressing can be pressed against the palatal wound through the storage device 3. The overall concept of this application is to provide a reliable platform for dressing placement by setting the shell-like body 1 and the palatal device 2, giving the dressing a support platform and preventing it from easily falling off. Simultaneously, the arched design of the palatal device 2 allows it to better conform to the shape of the palate, improving patient comfort. The storage device 3 also allows the dressing to stably cover and press against the palatal wound, promoting wound healing and avoiding the problem of dressings easily falling off in traditional methods.

[0056] For further explanation, please refer to Figures 3 to 5 As shown, the storage device 3 and the palatal device 2 are integrally molded, which improves the stability and durability of the overall structure. The storage device 3 is a groove formed by the palatal device 2 at the predetermined position recessed in a direction away from the palate. The groove design facilitates the placement and fixation of the dressing. This design simplifies the manufacturing process while ensuring the stability of the storage device 3.

[0057] To reduce irritation to the oral soft tissues, the storage device 3 has a smooth, curved surface facing the tongue. The curved surface in this application can be as follows: Figure 3 As shown, when the storage device 3 is prism in shape, the connecting parts of the prism are all rounded to avoid scratching the tongue or causing oral discomfort; furthermore, the part where the storage device 3 connects to the palate device 2 is also rounded to avoid irritation or scratching of the palate, especially around any wounds on the palate. The curved surface in this application can also be as follows... Figure 4 As shown, the outer surface of the bottom wall of the storage device 3 is entirely curved. Please refer to [the image / reference]. Figure 5 As shown in this application, the outer surface of the storage device 3 facing the tongue can also be a curved surface with troughs. This smooth arc or curved surface design improves wearing comfort and reduces oral discomfort or damage caused by an uneven outer surface of the storage device 3 facing the tongue.

[0058] Furthermore, please refer again. Figure 4 To better adapt to the shape of the palate and improve the fit between the dressing and the palate wound, the inner surface 31 of the bottom wall of the storage device 3 is arc-shaped, with the arc protruding towards the palate at the predetermined position. The arc can be formed by hot-pressing a thickened film using a thermoforming process, or by direct printing using additive manufacturing. This arc design allows the storage device 3 to better fit the shape of the palate, facilitating even pressure on the wound and promoting healing.

[0059] Furthermore, to improve the microenvironment around the palate wound and promote healing, the storage device 3 is provided with several vents penetrating its inner and outer surfaces. These vents can be located on the bottom wall of the storage device 3, penetrating both its inner and outer surfaces. This design helps maintain dryness and cleanliness around the palate wound, promoting respiration and metabolism of the wound tissue and thus accelerating healing. Additionally, the vents can also be located on the side wall of the storage device 3, penetrating both its inner and outer surfaces. This placement of vents on the side wall not only maintains dryness and cleanliness around the palate wound but also prevents liquid medication in the dressing from dripping directly into the patient's mouth due to gravity, resulting in a better patient experience.

[0060] Furthermore, to ensure that the dressing can fully cover the wound and provide sufficient pressure, the coverage area of ​​the storage device 3 is larger than the surface area of ​​the palatal wound, ensuring that the wound is completely covered; and the depth dimension H of the storage device 3 is greater than or equal to 3 mm and less than or equal to 20 mm (see...). Figure 3 Through extensive testing and verification by the inventors, it has been found that this range of depth dimensions provides sufficient pressure to aid in the healing of palate wounds.

[0061] Furthermore, to avoid compressing the wound edges, the edge of the storage device 3 is set at a first preset distance in the horizontal direction from the edge of the palatal wound, wherein the first preset distance is greater than or equal to 0 and less than or equal to 10 mm. The shape of the storage device 3 adapts to the shape of the palatal wound and maintains the first preset distance of 0 to 10 mm, so that the area covered by the storage device 3 is greater than or equal to the area of ​​the palatal wound. The edge of the storage device 3 must be at least flush with the edge of the palatal wound to ensure that the wound can be covered by dressing. When the first preset distance is 0, the edge of the storage device 3 is just flush with the edge of the palatal wound, just enough to ensure that the wound can be covered by dressing. When the first preset distance is greater than 0, the edge of the storage device 3 extends beyond the edge of the palatal wound to avoid compressing the incision edge of the wound. A reasonable first preset distance. The design protects the wound edges, prevents further damage, and ensures the dressing is stably fixed to the wound. Furthermore, the selection of the first preset distance needs to consider the oral cavity morphology of different patients. For example, for patients with a smaller palate surface area, a range of 1mm-5mm can be selected for the first preset distance; for patients with a larger palate surface area, a range of 6mm-10mm can be selected. Therefore, the first preset distance set by the inventors through extensive case studies can meet the needs of the vast majority of patients and can be adjusted according to specific clinical conditions.

[0062] Furthermore, to accommodate different patients' oral cavity morphologies and varying degrees of palate swelling at different postoperative time points, the surface of the palatal device 2 facing the palate is set at a second preset distance in the vertical direction from the patient's palate. This second preset distance is greater than or equal to 0 and less than or equal to 20 mm. In some embodiments, the second preset distance is set to 5 mm, 10 mm, or 20 mm, respectively. In one scenario, when the patient has just undergone surgery and the wound periphery is still swollen, the second preset distance ensures that, except for the dressing portion pressing against the palate, other parts of the palate are not compressed by the palatal device 2, resulting in greater patient comfort. In another scenario, different patients have different oral cavity morphologies and varying "arch" heights of the palate; setting the second preset distance within this range improves the applicability of the dental instrument 100.

[0063] Furthermore, when the second preset distance is 0mm, the palatal device 2 is fitted to the palate. To further improve the stability and comfort of wearing, the surface of the palatal device 2 facing the palate has a structure that matches the shape of the palatal folds. This palatal fit design not only improves the fixation effect of the dental instrument 100, but also reduces oral discomfort after the patient wears it.

[0064] Furthermore, to improve the stability of the dental instrument 100 after it is worn, the tooth receiving cavity 10 is also provided with a retention part 14 that can prevent the shell-shaped body 1 from falling off. In some embodiments, please refer to Figure 9 and Figure 10 As shown, the retention portion 14 is a groove structure protruding from the buccal or lingual side (not shown) of the tooth receiving cavity 10 in a direction away from the tooth 200. This groove structure cooperates with the retention attachment 4 adhered to the tooth surface of the tooth 200. Multiple retention attachments can be provided, and they can be disposed on tooth receiving cavities 10 of different or the same tooth. In another embodiment, please refer to... Figure 11 and Figure 12 As shown, the retention portion 14 can also be an extension extending from the gingival margin of the tooth receiving cavity 10 toward the gingiva 300 and covering part of the gingiva 300; to enhance the enveloping force of the dental instrument 100 and prevent it from falling off; the extension portion can be formed by the gingival margin of the tooth receiving cavity 10 of one tooth extending toward the gingiva 300, or by the gingival margins of the tooth receiving cavities 10 of multiple teeth extending toward the gingiva 300, or by the gingival margins of the tooth receiving cavities 10 of all teeth extending toward the gingiva 300, and is not limited here. The retention portion 14 can effectively prevent the dental instrument 100 from falling off, improving the safety and reliability during wear. Further, the retention portion 14 is set on the side adjacent to the predetermined position. When the palatal wound is near the left side of the patient's palate, the retention portion 14 is set at least on the tooth receiving cavity 10 of the first segment 11 (e.g. Figure 9 (as shown); When the palatal wound is near the right side of the patient's palate, the retention part 14 is provided at least on the tooth receiving cavity 10 of the second section 12. This arrangement of the retention part 14 can further enhance the stability of the dental instrument 100, especially on the side requiring dressing treatment, i.e., enhance the stability of the palatal wound area, thereby helping to maintain the correct position of the dressing.

[0065] Example 2

[0066] To achieve the purpose of this utility model, this utility model also provides a dental instrument 100 in which the storage device 3 and the palatal device 2 are separately configured. The difference between this embodiment and the first embodiment is that the storage device 3 and the palatal device 2 are not integrally formed structures, but are separate structures. Other technical features are the same as those in the first embodiment, and will not be repeated here.

[0067] Please refer to Figures 13 to 16As shown, the storage device 3 and the palatal device 2 can also be configured as separate structures, with the top surface of the storage device 3 being open; that is, the storage device 3 and the palatal device 2 can be manufactured separately. This provides more flexible options for the combination of the dental instrument 100, improving the adaptability and practicality of the dental instrument 100. At the same time, the separate structure also facilitates dressing changes and cleaning of the storage device 3. In practical applications, different materials can be used to process the storage device 3 and the palatal device 2. After processing, more flexible connection methods can be selected according to clinical needs.

[0068] Furthermore, when the storage device 3 and the palatal device 2 are separate structures, in one embodiment, the bottom surface of the storage device 3 is provided with a first connecting portion, and the palatal device 2 is provided with a second connecting portion on the side facing the palate. The storage device 3 is connected to the palatal device 2 through the cooperation of the first connecting portion and the second connecting portion. The specific structure of the first connecting portion and the second connecting portion is not specifically limited in this application, as long as they can connect the storage device 3 to a predetermined position on the palatal device 2. For example, see [reference needed]. Figure 13 As shown, the first connecting part and the second connecting part are two matching planes or arc surfaces. That is, the first connecting part is the outer surface of the bottom wall of the storage device 3, and the second connecting part is the surface of the palatal device 2 facing the palate. The two matching planes or arc surfaces are connected together non-detachably by means of adhesive bonding or laser welding. Alternatively, the first connecting part is a slot structure provided on the bottom wall of the storage device 3, and the second connecting part is a buckle structure provided on the surface of the palatal device 2 facing the palate. The slot structure and the buckle structure realize the connection between the storage device 3 and the palatal device 2 by means of concave-convex matching. The number and setting position of the slot structure and the buckle structure correspond.

[0069] In another case, please see Figure 14 As shown, the palatal device 2 has a through-hole structure 21 at the predetermined position for connection with the storage device 3. A third connecting portion is provided on the edge of the through-hole structure 21, and a fourth connecting portion 32, which mates with the third connecting portion, is provided on the side of the storage device 3 near the opening. The storage device 3 is connected to the palatal device 2 through the cooperation of the third connecting portion and the fourth connecting portion 32. Similarly, the specific structure of the third connecting portion and the fourth connecting portion 32 is not specifically limited in this application, as long as they enable the storage device 3 to be connected to the predetermined position of the palatal device 2. For example… Figure 15 and Figure 16As shown, the fourth connecting part 32 can be a groove structure arranged around the top surface of the storage device 3, or it can be a plurality of groove structures spaced apart near the top surface of the storage device 3. The third connecting part is located at the edge of the through-hole structure 21. The third connecting part can be a protrusion structure that matches the groove structure. During connection, when the storage device 3 is inserted along the insertion direction X, the third connecting part is engaged and accommodated in the groove structure to complete the connection. Alternatively, in another embodiment, the fourth connecting part can be a portion of the side surface of the storage device 3 near the opening, and the third connecting part can be the edge of the through-hole structure 21. When the storage device 3 is inserted along the insertion direction X, the portion of the side surface of the storage device 3 near the opening and the edge of the through-hole structure 21 are directly fixed together by adhesive bonding or laser welding, so that the storage device 3 and the palatal device 2 are non-detachably fixedly connected at the predetermined position.

[0070] Of course, it is understandable that while the storage device 3 and the palatal device 2 are separately configured, the palatal device 2 and the shell-shaped body 1 can also be configured as separate structures. This configuration provides clinical adaptability and practicality for the dental instrument 100, allowing for timely replacement of corresponding components based on local problems encountered during wear in different cases. For example, the storage device 3 can be replaced to maintain its cleanliness; the palatal device 2 can be replaced to adapt to different stages of palatal morphology, improving patient comfort; or the shell-shaped body 1 can be replaced to meet different orthodontic goals at different stages, etc. The separate configuration of the palatal device 2 and the shell-shaped body 1 has been explained in Embodiment 1 and will not be repeated here.

[0071] Example 3

[0072] To achieve the purpose of this utility model, this utility model also provides a dental instrument 100. The difference between this embodiment and embodiment one is that the shell-shaped body 1 further includes a third section 13 connected between the first section 11 and the second section 12. Other technical features are the same as in embodiment one, and will not be repeated here.

[0073] Please refer to Figure 17 and Figure 18As shown, the shell-like body 1 further includes a third section 13 connected between the first section 11 and the second section 12. The third section 13 is used to accommodate anterior teeth and has a tooth receiving cavity 10 for accommodating anterior teeth. The distal end of the left side of the third section 13 is connected to the mesial end of the first section 11, and the distal end of the right side of the third section 13 is connected to the mesial end of the second section 12. Thus, the third section 13 enhances the containment force for anterior teeth, and the arrangement of the third section 13 enhances the stability and wearing effect of the dental instrument 100. Figure 17 In the dental instrument shown, the bottom wall of the storage device 3 protrudes towards the tongue, and the storage device 3 can be integrally formed with the palatal device 2 or separately disposed; Figure 18 In the dental instrument shown, the storage device 3 is integrally protruding onto the surface of the palatal device 2 facing the palate, or it can be integrally formed with the palatal device 2 or separately set.

[0074] Furthermore, the tooth receiving cavity 10 of the shell-shaped body 1 can be configured to match the tooth layout of the target orthodontic stage. This target orthodontic stage can be the final stage of the patient's orthodontic treatment, or it can be a phased treatment goal, depending on the specific circumstances of the case. When worn, the shell-shaped body 1 allows the patient's teeth to move from the initial tooth layout towards the target orthodontic stage layout, thereby achieving orthodontic treatment while simultaneously applying wound dressing, which helps to shorten the overall treatment cycle for the patient.

[0075] It should be noted that the above embodiments can be freely combined as needed to form different new implementation schemes without causing contradictions. All implementation schemes formed by such combinations are within the protection scope of this application. In order to save space in the application text, they will not be described in detail here.

[0076] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the inventive principle of this invention, and these improvements and modifications should also be considered within the scope of protection of this application.

[0077] Similarly, the above descriptions are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A dental instrument worn on the maxillary dentition, characterized in that, The device includes a shell-shaped body and a palatal device connected to the shell-shaped body. The shell-shaped body includes a first segment and a second segment. The first segment has a tooth receiving cavity for accommodating at least one tooth in the left posterior region, and the second segment has a tooth receiving cavity for accommodating at least one tooth in the right posterior region. One side of the palatal device is connected to the lingual gingival margin of the first segment, and the other side is connected to the lingual gingival margin of the second segment. The palatal device is arched in the direction of the hard palate. The palatal device has a storage device for accommodating dressings at a predetermined position corresponding to the location of the hard palate wound. The side of the storage device near the hard palate is open. When worn, the dressing covers and presses against the hard palate wound.

2. The dental instrument according to claim 1, characterized in that, The storage device and the palatal device are integrally formed, wherein the storage device is a groove formed by the portion of the palatal device at the predetermined position being recessed in a direction away from the palate.

3. The dental instrument according to claim 1, characterized in that, The outer surface of the storage device facing the tongue is a smooth arc or curved surface.

4. The dental instrument according to claim 1, characterized in that, The inner surface of the bottom wall of the storage device is arc-shaped, and the arc-shaped surface protrudes towards the upper jaw at the predetermined position.

5. The dental instrument according to claim 1, characterized in that, The storage device is provided with a number of ventilation holes that penetrate the inner and outer surfaces of the storage device.

6. The dental instrument according to claim 1, characterized in that, The coverage area of ​​the opening structure is greater than the surface area of ​​the palatal wound, and the depth dimension of the storage device is greater than or equal to 3 mm and less than or equal to 20 mm.

7. The dental instrument according to claim 6, characterized in that, When worn, the edge of the opening structure is set at a first preset distance in the horizontal direction from the edge of the palate wound, wherein the first preset distance is greater than or equal to 0 and less than or equal to 10 mm.

8. The dental instrument according to claim 1, characterized in that, The surface of the palate device facing the upper palate is set at a second preset distance in the vertical direction from the patient's upper palate, wherein the second preset distance is greater than or equal to 0 and less than or equal to 20 mm.

9. The dental instrument according to claim 8, characterized in that, The second preset distance is 0mm. The palatal device is fitted to the palate. The surface of the palatal device facing the palate has a structure that matches the shape of the palatal folds of the palate.

10. The dental instrument according to claim 1, characterized in that, The tooth receiving cavity is also provided with a retention part that can prevent the shell-like body from falling off. The retention part is: a groove structure formed by protruding from the buccal side or lingual side of the tooth receiving cavity toward the distal tooth, the groove structure cooperating with a retention attachment pasted on the tooth surface; and / or an extension formed by the gingival margin of the tooth receiving cavity extending toward the gingiva and covering part of the gingiva.

11. The dental instrument according to claim 10, characterized in that, The retaining portion is disposed on the side adjacent to the predetermined position.

12. The dental instrument according to claim 1, characterized in that, The storage device and the palatal device are separate structures, with an opening on the top surface of the storage device; wherein: The storage device has a first connecting portion on its bottom surface, and the palatal device has a second connecting portion on its side facing the hard palate. The storage device is connected to the palatal device through the cooperation of the first connecting portion and the second connecting portion; or, The palatal device has a through-hole structure at the predetermined position that connects to the storage device. The edge of the through-hole structure is provided with a third connecting part. The storage device has a fourth connecting part on the side near the opening end that cooperates with the third connecting part. The storage device is connected to the palatal device through the cooperation of the third connecting part and the fourth connecting part.

13. The dental instrument according to claim 1, 2, or 12, characterized in that, The palatal device and the shell-shaped body are integrally formed; or, the palatal device and the shell-shaped body are fixedly connected by bonding, welding, or radiation cross-linking; or, the palatal device and the shell-shaped body are detachably connected.

14. The dental instrument according to claim 1, characterized in that, The shell-like body further includes a third segment connecting the first segment and the second segment, the third segment being used to accommodate teeth in the anterior region, wherein the distal end on the left side of the third segment is connected to the mesial end of the first segment, and the distal end on the right side of the third segment is connected to the mesial end of the second segment.

15. The dental instrument according to claim 14, characterized in that, The tooth-accommodating cavity layout of the shell-shaped body is consistent with the tooth layout of the target orthodontic stage. When worn, the shell-shaped body enables the patient's teeth to move from the initial tooth layout to the tooth layout of the target orthodontic stage.

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