A semi-solid denture base

Abstract

The application relates to a semi-solid denture frame which comprises two retention clamps, two connecting bodies and a tooth site support; the two connecting bodies are located between the two retention clamps along a first circumferential direction; the tooth site support is located between the two connecting bodies along the first circumferential direction and is used for supporting a false tooth and a base at a missing tooth site; the connecting body comprises a connecting part and a plug-in part; the connecting part is fixedly connected with the retention clamp; the plug-in part is connected and locked at a first position or a second position on the connecting part; one end of the plug-in part, which is away from the connecting part along the first circumferential direction, is provided with a second retention groove which penetrates through the upper end of the connecting part along a first direction; two connecting protrusions are fixed on the tooth site support and are slidably embedded into the two second retention grooves along the first direction, so that the tooth site support is fixedly connected with the connecting body. The semi-solid denture frame has the effect of mounting the false tooth in the oral cavity.

Description

Technical Field

[0001] The present application relates to the technical field of oral restoration, and in particular to a semi-fixed denture frame. Background Art

[0002] Currently, the common clinical restoration methods for tooth loss include: dental implant restoration, traditional fixed denture restoration and removable denture restoration.

[0003] Dental implant restoration: An artificial tooth root is surgically implanted before the superstructure is restored. Disadvantages of this method include contraindications, psychological difficulties for some patients, high costs, a long restoration time, and complications that are difficult to manage.

[0004] Traditional fixed denture restorations require partial removal of the remaining teeth on either side of the missing tooth, followed by a mold-making process and then fixed with adhesive. The disadvantages of this method are significant damage to healthy teeth, making repairs difficult, and poor cleaning can easily lead to tooth decay and gingivitis.

[0005] Removable denture restoration: It uses the remaining natural teeth, mucosa and bone tissue under the base as support, relies on the denture retainer and base for retention, uses artificial teeth to restore the shape and function of missing teeth, and uses base materials to restore the defective alveolar ridge, jaw and its surrounding soft tissue shape. It is a restoration that patients can remove and wear by themselves.

[0006] Disadvantages of removable dentures include a large base causing a strong foreign body sensation, which can lead to nausea and discomfort. Clasps, the primary retainer of removable dentures, are clamped onto the remaining natural teeth. They can easily become loose if removed and put on for extended periods, and due to the poor fit between the clasps and the abutment teeth, they can easily become lodged with food, leading to tooth decay and gingivitis. Elderly patients who do not meet the requirements for dental implants or traditional fixed dentures and have limited mobility find it difficult to perform effective routine cleaning and maintenance, resulting in poor results. Summary of the Invention

[0007] The present application provides a semi-fixed denture frame, which is used to provide a new type of bracket for mounting dentures.

[0008] The present application provides a semi-fixed denture frame, comprising a retaining card body, a connecting body and a tooth support; there are two retaining card bodies, and the first circumferential direction is the arrangement direction of the teeth in the oral cavity; there are two connecting bodies, and the two connecting bodies are located between the two retaining card bodies along the first circumferential direction; the connecting body comprises a connecting portion and a plug-in portion; the two connecting portions are respectively detachably fixedly connected to the two retaining card bodies; the two plug-in portions are located between the two connecting portions, and the surface of the plug-in portion facing away from the connecting portion along the first circumferential direction is provided with a second retaining groove, and the second retaining groove passes through the upper end of the plug-in portion along the first direction, and the first direction is the spacing direction of the root and crown of the denture; the plug-in portion is connected and locked on the connecting portion, and the plug-in portion is located in one of the first position or the second position, and the plug-in portion is connected and locked to the connecting portion When the tooth is in the upper position, the two second retaining grooves are nearly parallel along the first direction; the plug-in part in the first position is located in the second position after being rotated along the first center line to a set angle, and the first center line is along the first circumferential direction and passes through the center of the plug-in part; the tooth position support is located between the two connecting bodies, and the tooth position support includes an edge plate and a mesh frame; the edge plate is provided with two one-to-one corresponding to the two plug-in parts, and a connecting protrusion is fixed on the surface of the edge plate facing the plug-in part; the mesh frame is located between the two edge plates, and the two ends of the mesh frame are fixedly connected to the two edge plates in a one-to-one correspondence, and the mesh frame is used to support the denture and base at the missing tooth position; the two ends of the mesh frame can rotate relative to each other and lock, adjusting the position of the two connecting protrusions along the first circumferential direction, so that the two connecting protrusions slide along the first direction and are respectively embedded in the two second retaining grooves.

[0009] In the above technical solution, two retention card bodies are used to fix the connection with two normal teeth adjacent to the missing tooth. After the connecting part is connected to the retention card body, the plug-in part is rotated around the first center line to adjust the position of the plug-in part so that the two second retention grooves respectively provided on the two plug-in parts are parallel in the first direction.

[0010] When installing the tooth support and the plug-in part, it is only necessary to align the connecting protrusion on the edge plate with the second retaining groove, move the tooth support along the first direction, and embed the connecting protrusion into the second retaining groove to achieve a fixed connection between the tooth support and the connecting body.

[0011] Before installing the tooth support and the connecting body, it is necessary to adjust the position of the edge plates connecting the two ends of the mesh frame according to the curvature of the patient's oral ridge bone, so that the two connecting protrusions respectively provided on the two edge plates can correspond one to one with the two second retention grooves; after fixing the denture on the tooth support, the tooth support and the plug-in part are installed. After the installation of the tooth support is completed, the denture is installed in the mouth.

[0012] Semi-fixed dentures do not have a large base, and the occlusal force can still be shared by the healthy remaining teeth and the gums in the edentulous area. The mechanical design is reasonable, and the foreign body sensation in the mouth is greatly reduced, thereby improving the comfort of patients wearing dentures.

[0013] The overall structure of the semi-fixed denture is compact and not easy to get food stuck in it, which reduces the occurrence of caries, gingivitis and bad breath.

[0014] Semi-fixed denture frames reduce the risk of loosening and breaking caused by metal fatigue due to concentrated force on traditional clasp hooks.

[0015] The setting of tooth support makes the selection of resin teeth and resin base materials more flexible. For example, quick-setting materials can be selected to achieve the effect of immediately repairing missing teeth. This can avoid the problem of traditional dentures requiring separate processing, which is time-consuming and labor-intensive, and can improve the efficiency of tooth missing repair.

[0016] Semi-fixed denture frame is a semi-fixed detachable structure, which makes it easier for doctors to repair dentures.

[0017] Optionally, a groove is provided at the end of the connecting part facing the plug-in part, and the groove is a regular polygonal groove; a protrusion is provided at the end of the plug-in part facing the connecting part, and the protrusion is a column that can be embedded in the groove to achieve locking of the plug-in part and the connecting part.

[0018] In the above technical solution, after rotating the protrusion along the first center line, the protrusion is then embedded in the groove to achieve locking after the position adjustment of the plug-in part and the connecting part. The structure of the groove and the protrusion is simple, and the position adjustment of the plug-in part is convenient.

[0019] Optionally, a plurality of second retaining grooves are provided on the plug-in portion at intervals with the first center line as the axis.

[0020] In the above technical solution, the provision of multiple second retention grooves can facilitate the connection protrusion to select a suitable second retention groove for insertion, which is beneficial to the installation of the denture.

[0021] Optionally, a first retaining protrusion is provided on the retaining card body, and a first retaining groove is provided on the connecting portion. The first retaining protrusion is a component that can be embedded in the first retaining groove to achieve a fixed connection between the connecting portion and the retaining card body.

[0022] In the above technical solution, the installation connection between the connecting portion and the retaining card body is achieved through the cooperation between the first retaining protrusion and the first retaining groove. The connection structure is simple and easy for medical staff to operate.

[0023] Optionally, the retaining card includes a card ring and a card body; wherein the card ring is used to be mounted on the crown of the tooth adjacent to the denture; the card body is fixed to the lower end of the card ring along the first direction, and the lower end is the end of the card ring close to the tooth root.

[0024] In the above technical solution, the provision of the retention card body effectively utilizes the periodontal potential of the healthy teeth remaining on both sides of the edentulous area and has a fixing and protective effect on them.

[0025] Optionally, a retaining portion is provided on the side of the second retaining groove, and when the connecting protrusion slides to the set position in the second retaining groove, at least part of it passes through the retaining portion, and the retaining portion prevents the connecting protrusion from sliding along the first direction in the second retaining groove.

[0026] In the above technical solution, the retaining portion further restricts the position of the connecting protrusion, maintaining its stability within the second retaining groove, thereby improving the stability of the connection between the edge plate and the plug-in portion. While ensuring the stability of the tooth support during normal use, when medical personnel apply a sufficiently large force to the edge plate in the first direction, the connecting protrusion can pass through the retaining portion. Continued movement can pull the connecting protrusion out of the second retaining groove, allowing the tooth support and the connector to be disassembled.

[0027] Optionally, both of the two connecting bodies are provided with connecting through holes; the semi-fixed denture frame further comprises a connecting body, the connecting body comprises two fixedly connected connecting heads, and the two connecting heads are plug-connected to the two connecting through holes in a one-to-one corresponding manner.

[0028] In the above technical solution, the two connecting bodies are connected by a connector, which further improves the stability of the two connecting bodies and the connection between the connecting bodies and the tooth support, and improves the stability of the semi-fixed denture installed in the oral cavity.

[0029] Optionally, the mesh frame includes a first frame, a second frame and an adjustment disk; wherein the first frame and the second frame are fixedly connected to the two edge plates respectively in a one-to-one correspondence; the adjustment disk is located between the first frame and the second frame and connected to the first frame and the second frame, the first frame is fixed at a third position or a fourth position on the adjustment disk, and the first frame at the third position is located at the fourth position after being rotated along the second center line by a set angle, and the second center line is a line along the first direction and passing through the center of the adjustment disk.

[0030] In the above technical solution, by rotating the position of the first frame and then fixing the first frame on the adjustment plate, the connecting protrusions on the edge plates at both ends of the mesh frame correspond to the second retention grooves, and the mesh frame can also fit more closely to the patient's alveolar spine, thereby improving the matching and stability of the mesh frame installation.

[0031] Optionally, at least two first slots are provided on the adjustment disk, and the two first slots are spaced apart with the second center line as the axis; a first block is provided on the first frame, and the first block is a component that can be embedded in any first slot to fix the adjustment disk and the first frame.

[0032] Optionally, the mesh frame includes a first frame and a second frame; wherein the first frame and the second frame are fixedly connected to the two edge plates respectively in a one-to-one correspondence; the first frame is fixed to the fifth position or the sixth position on the second frame, and the first frame at the fifth position is located at the sixth position after being rotated along the second center line by a set angle, and the second center line is a line along the first direction and passing through the center of the adjustment disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram of the structure of a semi-fixed denture frame installed on a normal tooth in an embodiment;

[0034] Figure 2 is a schematic structural diagram of a semi-fixed denture frame in an embodiment;

[0035] Figure 3 This is a schematic structural diagram of the connection between the retaining card body and the connecting body in one embodiment;

[0036] Figure 4 is a schematic structural diagram of a first retaining groove on an engaging body in an embodiment;

[0037] Figure 5 is a schematic structural diagram of the connection between the connecting portion and the plug-in portion in an embodiment;

[0038] Figure 6 is a schematic structural diagram of a protrusion on the plug-in portion in an embodiment;

[0039] Figure 7 This is a schematic structural diagram of the connection between the tooth support and the connecting body in one embodiment;

[0040] Figure 8 is a structural diagram of the connection between the mesh frame and the adjustment disk in one embodiment;

[0041] Figure 9 This is a schematic diagram of the structure of a C-shaped card ring connected to a normal tooth in an embodiment;

[0042] Figure 10 Schematic diagram of the structure of the connection between a connector and an adapter in an embodiment.

[0043] 1. Retention card body; 11. Card body ring; 12. Card body; 121. First retention protrusion;

[0044] 2. Connecting body; 21. Connecting portion; 211. First retaining groove; 212. Recess; 22. Inserting portion; 221. Protrusion; 222. Second retaining groove; 23. Connecting through hole;

[0045] 3. Tooth support; 31. Edge plate; 311. Connecting protrusion; 32. Mesh frame; 321. First frame; 322. Second frame; 323. First clamping block; 324. Second clamping block; 33. Adjusting disk; 331. First clamping slot; 332. Second connecting slot;

[0046] 4. Connector; 41. Connector;

[0047] 5. Teeth one; 6. Teeth three. DETAILED DESCRIPTION

[0048] The present application will be further described in detail below through the accompanying drawings and examples, through which the features and advantages of the present application will become more clear and distinct.

[0049] The word "exemplary" is used exclusively herein to mean "serving as an example, example, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0050] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0051] The embodiment of the present application discloses a semi-fixed denture frame. Figures 1 to 10 A semi-fixed denture frame includes a retaining card body 1, a connecting body 2 and a tooth support 3.

[0052] Reference Figure 1 as well as Figure 2 There are two retention card bodies 1, and the two retention card bodies 1 are used for fixed connection with two adjacent teeth of the denture along the first circumferential direction in a one-to-one correspondence. The first circumferential direction is the arrangement direction of the teeth in the oral cavity.

[0053] Two engagement bodies 2 are provided, and the two engagement bodies 2 are located between the two retention card bodies 1 along the first circumferential direction; the engagement body 2 includes a connecting portion 21 and an inserting portion 22 .

[0054] The two connecting portions 21 are respectively and detachably fixedly connected to the two retaining card bodies 1 .

[0055] The two plug-in parts 22 are located between the two connecting parts 21 along the first circumferential direction. A second retention groove 222 is provided on the surface of the plug-in part 22 facing away from the connecting part 21 along the first circumferential direction. The second retention groove 222 passes through the upper end of the plug-in part 22 along the first direction. The first direction is the spacing direction of the root and crown of the denture, and the upper end is the end close to the crown.

[0056] The plug-in portion 22 is connected to and locked on the connecting portion 21. The plug-in portion 22 is located in one of the first position or the second position. When the plug-in portion 22 is connected to and locked on the connecting portion 21, the two second retaining grooves 222 are nearly parallel along the first direction; the plug-in portion 22 in the first position is located in the second position after being rotated along the first center line at a set angle. The first center line is along the first circumferential direction and passes through the center of the plug-in portion 22.

[0057] The tooth support 3 is located between the two engaging bodies 2 along the first circumferential direction. The tooth support 3 includes an edge plate 31 and a mesh frame 32 .

[0058] The edge plates 31 are provided with two corresponding to the two plug-in parts 22 , and a connection protrusion 311 is fixed on the surface of the edge plate 31 facing the plug-in part 22 .

[0059] The mesh frame 32 is located between the two edge plates 31 , and both ends of the mesh frame 32 are fixedly connected to the two edge plates 31 in a one-to-one correspondence. The mesh frame 32 is used to support the denture and base at the missing tooth position.

[0060] The two ends of the mesh frame 32 can rotate relative to each other and be locked, so as to adjust the positions of the two connecting protrusions 311 along the first circumferential direction, so that the two connecting protrusions 311 slide along the first direction and are respectively embedded in the two second retaining grooves 222 .

[0061] Reference Figure 1 As an optional solution, the retaining card body 1 includes a card body ring 11 and a card body 12.

[0062] The clamping ring 11 is used to be sleeved on the crown of the tooth adjacent to the denture.

[0063] The card body 12 is fixed to the lower end of the card ring 11 along the first direction, and the lower end is the end of the card ring 11 close to the tooth root.

[0064] The clamping ring 11 has the function of retaining and stabilizing the denture, thereby preventing the denture from shifting when the denture is chewing.

[0065] The shape of the clamping ring 11 is C-shaped or O-shaped. In this embodiment, the shape of the clamping ring 11 is O-shaped as an example for schematic description. The shape of the clamping ring 11 is selected according to the clinical need for retention. In another embodiment, the shape of the clamping ring 11 is C-shaped, referring to Figure 9 , it should be noted that Figure 9 The curvature of the lattice structure shown in the figure is greater than Figure 1 The curvature of the mesh frame shown in the figure only means that the mesh frame can be used in oral cavity of various shapes, and does not necessarily mean that the size of the curvature corresponds to the shape of the card body ring 11.

[0066] The clamping ring 11 is tightly wrapped around the upper part of the crown. The clamping ring 11 can be fixed to the crown by elastic clamping or bonding. In this embodiment, the clamping ring 11 is tightly wrapped around the upper quarter of the crown. In another embodiment, the clamping ring 11 is tightly wrapped around the upper one-eighth of the crown. The clamping ring 11 is tightly wrapped around the upper three-eighths of the crown. The upper part of the tooth is where the crown is located, and the lower part of the tooth is where the root is located.

[0067] The function of the clamping ring 11 is basically the same as that of the traditional clamping ring arm, which has the function of retaining and stabilizing the denture; but compared with the traditional clamping ring arm, the clamping ring 11 fits the teeth better, has a larger contact area, has better retention force, and is not easy to get stuck in the teeth.

[0068] The card body 12 is located at one end of the card ring 11 along the first circumferential direction. The first circumferential direction is the arrangement direction of each row of teeth in the mouth. The specific direction of the first circumferential direction represented by the card ring 11 when connected to different teeth is different, but it satisfies the overall arrangement direction along each row of teeth.

[0069] It should also be noted that the card body 12 is located at the end of the card body ring 11 that faces the missing tooth along the first circumferential direction. If tooth 2 is missing among tooth 1 5, tooth 2, and tooth 3 6, which are sequentially arranged along the first circumferential direction, the card body 12 connected to the card body ring 11 fixed to tooth 1 5 faces tooth 2 along the first circumferential direction. The card body 12 connected to the card body ring 11 fixed to tooth 3 6 also faces tooth 2 along the first circumferential direction. For ease of description, tooth 2 will be defined as the missing tooth in the following text, and tooth 1 5 and tooth 3 6 will represent the normal teeth adjacent to the missing tooth.

[0070] The card body 12 extends in the opposite direction to the first direction. The overall shape of the card body 12 is close to a rectangle. The side of the card body 12 along the first direction fits tightly with the tooth connected to the card ring 11. The thickness of the card body 12 is along the first direction. The side of the card body 12 is the surface of the card body 12 covering the tooth along the first direction.

[0071] The first direction is the distance between the root and crown of a tooth, which can also be understood as the distance between the root and crown of a denture. Furthermore, the first direction is from the root to the crown. Because each tooth is different, the crown direction of each tooth is different, and it is the actual direction from the root to the crown of the tooth. The direction away from the first direction is from the crown to the root of the tooth.

[0072] The surface of the card body 12 along the first circumferential direction and facing the missing tooth is provided with a structure for connecting with the engagement body 2. In this embodiment, the surface of the card body 12 along the first circumferential direction and facing the missing tooth is provided with a first retaining protrusion 121.

[0073] Reference Figure 3 as well as Figure 4 As an optional solution, a first retaining protrusion 121 is provided on the retaining card body 1, and a first retaining groove 211 is provided on the connecting portion 21. The first retaining protrusion 121 is a component that can be embedded in the first retaining groove 211 to achieve a fixed connection between the connecting portion 21 and the retaining card body 1.

[0074] The connecting body 2 includes a connecting portion 21 and an inserting portion 22 . The connecting portion 21 is used to be connected and fixed to the card body 12 , and the inserting portion 22 is used to be connected and fixed to the tooth support 3 .

[0075] The first retaining groove 211 is provided on the connecting portion 21, and is a protrusion 221 capable of being embedded in the first retaining protrusion 121. The first retaining groove 211 is clamped with the first retaining protrusion 121 to achieve fixed connection of the connecting portion 21 and the clamping body 12.

[0076] For example, two first retaining grooves 211 are provided, and the two first retaining grooves 211 are arranged at intervals along the second direction.

[0077] The second direction is the thickness direction of the tooth, and is also the interval direction of the outer side surface and the inner side surface of the tooth. The inner side surface of the tooth is the surface of the tooth facing the tongue. Since the actual shape of the tooth is close to an irregular elliptic cylinder, the tooth shape is understood as a square column, and the peripheral surface of the tooth is composed of two end surfaces along the first circumferential direction and two end surfaces along the second direction.

[0078] In another embodiment, the clamping body 12 is provided with a protrusion 221, and the connecting portion 21 is provided with a groove 212 corresponding to the protrusion 221. In another embodiment, a plurality of first retaining grooves 211 and first retaining protrusions 121 are provided one by one to improve the connection strength of the connecting portion 21 and the clamping body 12.

[0079] In another embodiment, the clamping body 12 and the connecting portion 21 can be connected by other existing connection structures.

[0080] Referring to Figure 5 and Figure 6 As an optional solution, the end of the connecting portion 21 towards the insertion portion 22 is provided with a groove 212, and the groove 212 is a regular polygonal groove.

[0081] The end of the insertion portion 22 towards the connecting portion 21 is provided with a protrusion 221, and the protrusion 221 is a column capable of being embedded in the groove 212 to achieve locking of the insertion portion 22 and the connecting portion 21.

[0082] The insertion portion 22 can be fixed at at least two positions of the connecting portion 21. The insertion portion 22 is fixed at the first position or the insertion portion 22 is fixed at the second position. The insertion portion 22 rotates around the first center line to rotate from the first position to the second position. The first center line is a line arranged along the first circumferential direction. The first center line is located in the middle of the insertion portion 22 along the first direction, and the first center line is located in the middle of the insertion portion 22 along the second direction.

[0083] In this embodiment, the insertion portion 22 can be fixed at eight positions of the connecting portion 21. The insertion portion 22 rotates around the first center line to rotate to any one of the eight positions.

[0084] When the plug-in portion 22 is located in any of the eight positions described above, the plug-in portion 22 can move along the first circumferential direction to engage with the connecting portion 21. For example, the connecting portion 21 is provided with a groove 212, and the plug-in portion 22 is provided with a protrusion 221. The plug-in portion 22 moves along the first circumferential direction so that the protrusion 221 is inserted into the groove 212, thereby achieving fixation between the plug-in portion 22 and the connecting portion 21.

[0085] When the plug-in part 22 needs to be moved from the first position to the second position, the protrusion 221 on the plug-in part 22 is removed from the groove 212 on the connecting part 21, and after rotating around the first center line to the second position, the plug-in part 22 is moved along the first circumferential direction to connect with the connecting part 21.

[0086] It should be noted that when the protrusion 221 on the plug portion 22 is located within the groove 212 of the connecting portion 21, the protrusion 221 can only move along the first circumferential direction and cannot rotate about the first centerline. A specific structural form can be that the groove 212 is a regular octagonal groove and the protrusion 221 is a regular octagonal protrusion, which is the method adopted in this embodiment.

[0087] Alternatively, the groove 212 is a circular groove, the protrusion 221 is a cylindrical protrusion, the side of the circular groove is provided with a plurality of small protrusions arranged at equal intervals along the circumferential direction of the side of the groove 212, and the side of the cylindrical protrusion is provided with a plurality of small grooves for accommodating the above-mentioned small protrusions, and the number of small grooves is not less than the number of small protrusions.

[0088] Alternatively, glue is provided in the groove 212 , and the protrusion 221 is inserted into the groove 212 , and the plug-in portion 22 is held in a suitable position for a period of time to achieve connection between the plug-in portion 22 and the connecting portion 21 .

[0089] A second retaining groove 222 is provided on one side of the plug-in portion 22 facing away from the connecting portion 21 along the first circumferential direction. The second retaining groove 222 passes through the upper end of the plug-in portion 22 along the first direction.

[0090] Because the surfaces of the missing tooth and the adjacent teeth along the first circumferential direction are not parallel to each other, the surfaces on both sides of the missing tooth need to be parallel to each other by rotating the plug portion 22 relative to the connecting portion 21 to an appropriate position through the connection of the connecting body 2. Furthermore, the axial directions of most teeth are not parallel. Therefore, the rotation of the plug portion 22 relative to the connecting portion 21 facilitates the adjustment of the two second retaining grooves 222 on the connecting body 2, which are respectively connected to tooth 1 5 and tooth 3 6, into a parallel state, facilitating the placement of the tooth support 3.

[0091] For ease of understanding, you can imagine two adjacent teeth as two bowls placed together, with the two bowl mouths facing different directions. The left and right strokes of the two adjacent bowl surfaces present an "eight" shape, and the card body 12 fits the bowl surface, so the two card bodies 12 connected to tooth 1 5 and tooth 3 6 respectively also present an "eight" shape.

[0092] Since the protrusion of each tooth side is different, a variety of fitting angles are provided for the connection body 2. After the connection body 2 is connected to the card body 12, the two second retention grooves 222 on the tooth 1 5 and the tooth 3 6 are parallel, that is, they have a common positioning path, which facilitates the connection between the tooth support 3 and the connection body 2.

[0093] Reference Figure 5 As an optional solution, a plurality of second retaining grooves 222 are provided on the plug-in portion 22 at intervals with the first center line as the axis.

[0094] Exemplarily, eight second retaining grooves 222 are provided on the plug-in portion 22 , and the eight second retaining grooves 222 are arranged at equal intervals with the first center line as the axis.

[0095] In another embodiment, six second retaining grooves 222 are provided on the inserting portion 22 , and the six second retaining grooves 222 are arranged at unequal intervals with the first center line as the axis.

[0096] Furthermore, the second retaining groove 222 is an open groove for facilitating the entry of the connecting protrusion 311. The cross-section of the opening of the second retaining groove 222 is larger than the cross-section of the bottom. The opening and bottom of the second retaining groove 222 are two ends relatively arranged along the first direction of the second retaining groove 222.

[0097] As an optional solution, a retaining portion is provided on the side of the second retaining groove 222, and when the connecting protrusion 311 slides to the set position in the second retaining groove 222, it at least partially passes through the retaining portion, and the retaining portion prevents the connecting protrusion 311 from sliding along the first direction in the second retaining groove 222.

[0098] Exemplarily, a retaining portion is provided on the side of the second retaining groove 222, and the connecting protrusion 311 passes through the retaining portion when it is in the second retaining groove 222. At this time, the connecting protrusion 311 may be deformed, the plug-in portion 22 may be deformed, the retaining portion may be deformed, or both may be deformed at the same time, so that the connecting protrusion 311 can pass through the retaining portion.

[0099] The fixing portion blocks the connection protrusion 311 from moving along the first direction, confining the connection protrusion 311 within the second retaining groove 222 , thereby improving the stability of the connection between the edge plate 31 and the plug-in portion 22 .

[0100] Reference Figure 7 as well as Figure 8As an optional solution, the mesh frame 32 includes a first frame 321 , a second frame 322 and an adjustment plate 33 .

[0101] The first frame 321 and the second frame 322 are fixedly connected to the two edge plates 31 in a one-to-one correspondence.

[0102] The adjustment disk 33 is located between the first frame 321 and the second frame 322 and is connected to the first frame 321 and the second frame 322. The first frame 321 is fixed at the third position or the fourth position on the adjustment disk 33. The first frame 321 in the third position is rotated along the second center line by a set angle and is located at the fourth position. The second center line is a line along the first direction and passing through the center of the adjustment disk 33.

[0103] Exemplarily, the mesh frame 32 is used to support the resin teeth and their resin base materials. The shape of the mesh frame 32 matches the dental ridge of the missing tooth.

[0104] The tooth support 3 is connected to the two connecting bodies 2 at both ends. It is used to support the resin tooth and resin base material at the missing tooth position. The tooth support 3 includes two edge plates 31 and a mesh frame 32. The mesh frame 32 is located between the two edge plates 31. The edge plates 31, mesh frame 32, and edge plates 31 are arranged in sequence along the first circumferential direction.

[0105] The edge plate 31 is connected and fixed to the plug-in portion 22 . Specifically, a connecting protrusion 311 is provided on the edge plate 31 , which slides along the first direction into the second retaining groove 222 to achieve the connection between the edge plate 31 and the plug-in portion 22 .

[0106] The mesh frame 32 further includes an adjustment plate 33 . The mesh frame 32 includes a first frame 321 and a second frame 322 . The first frame, the adjustment plate 33 and the second frame 322 are sequentially arranged along a first circumferential direction.

[0107] The adjustment disk 33 is connected and fixed to the first frame 321 and the second frame 322. In this embodiment, the first frame 321 is connected and can be fixed on at least two positions on the adjustment disk 33, and the second frame 322 is connected and can be fixed on at least two positions on the adjustment disk 33.

[0108] The parallel edge plates 31 and connecting protrusions 311 on both sides of the tooth support 3 enter the two second retention grooves 222 on the tooth 1 5 and the tooth 3 6 along the common positioning path, thereby achieving the effect of repairing missing teeth.

[0109] After the adjustment disk 33 is rotated to a suitable angle and then connected to the first frame 321 and the second frame 322 , the connection angle between the first frame 321 and the second frame 322 on both sides can be changed to better match the curvature of the gums in the edentulous area.

[0110] In another embodiment, the first bracket 321 is connected to and can be fixed at at least two positions on the adjustment disk 33, and the second bracket 322 is fixed on the adjustment disk 33. In another embodiment, the second bracket 322 is connected to and can be fixed at at least two positions on the adjustment disk 33, and the first bracket 321 is fixed on the adjustment disk 33.

[0111] Reference Figure 8 As an optional solution, at least two first slots 331 are provided on the adjustment disk 33, and the at least two first slots 331 are spaced apart with the second center line as the axis.

[0112] A first clamping block 323 is provided on the first frame 321 . The first clamping block 323 is a component that can be embedded in any first clamping slot 331 to fix the adjustment disk 33 and the first frame 321 .

[0113] Exemplarily, the regulating disk 33 has two groups of grooves spaced apart along its circumference, and the two groups of grooves correspond to the first frame 321 and the second frame 322 respectively.

[0114] The slots corresponding to the first frame 321 include multiple first card slots 331, which are located on the side of the adjustment disk 33 facing the first frame 321. The first frame 321 is fixed with a first card block 323 that can be embedded in the first card slot 331 and engaged with the first card slot 331.

[0115] When the first clamping block 323 is taken out from one of the first clamping slots 331 , the adjusting disk 33 is rotated so that the first clamping block 323 can be inserted into another of the first clamping slots 331 and engaged with the adjusting disk 33 .

[0116] The slots corresponding to the second frame 322 include multiple second card slots 332, which are located on the side of the adjustment disk 33 facing the second frame 322. The second frame 322 is fixed with a second card block 324 that can be embedded in the second card slot 332 and engaged with the second card slot 332.

[0117] After the second clamping block 324 is taken out from one second clamping slot 332 , the adjusting disk 33 is rotated so that the second clamping block 324 can be inserted into another second clamping slot 332 and engaged with the fourth clamping slot.

[0118] In this embodiment, the first slot 331 and the second slot 332 pass through both ends of the adjustment disk 33 along the first direction. In another embodiment, the first slot 331 and the second slot 332 pass through the upper end of the adjustment disk 33 along the first direction.

[0119] Furthermore, the first clamping block 323 is a trapezoidal block, where the projection of the first clamping block on a plane perpendicular to the first direction is a trapezoid. The first clamping slot 331 is a trapezoidal slot that can be embedded in the first clamping block 323 .

[0120] As an optional solution, the mesh frame 32 includes a first frame 321 and a second frame 322 .

[0121] The first frame 321 and the second frame 322 are fixedly connected to the two edge plates 31 in a one-to-one correspondence.

[0122] The first frame 321 is fixed at the fifth position or the sixth position on the second frame 322 . The first frame 321 at the fifth position is rotated along the second center line by a set angle and is located at the sixth position.

[0123] A plurality of slots and at least one block are respectively provided at opposite ends of the first frame 321 and the second frame 322 along the first circumferential direction. The block is connected to the slot to achieve a fixed connection between the first frame 321 and the second frame 322 .

[0124] Reference Figure 10 As an optional solution, both connecting bodies 2 are provided with connecting through holes 23.

[0125] The semi-fixed denture frame further comprises a connector 4 , which comprises two fixedly connected connectors 41 , and the two connectors 41 are plug-connected to the two connecting through holes 23 in a one-to-one corresponding manner.

[0126] A connecting through hole 23 is provided at the lower end of the connecting body 2. A connecting through hole 23 is provided at both ends of the connecting body 2 along the second direction.

[0127] In another embodiment, the two connecting through holes 23 at both ends of the connecting body 2 along the second direction are connected to each other. In another embodiment, the two connecting through holes 23 at both ends of the connecting body 2 along the second direction can be offset from each other. In another embodiment, the connecting through hole 23 is provided at one end of the connecting body 2 along the second direction.

[0128] The connector 4 is used to connect the connecting body 2 connected to tooth 1 5 and tooth 3 6. The connector 4 is a U-shaped structure. The two ends of the connector 4 are fixedly connected to the two connecting bodies 2 in a one-to-one correspondence. Connecting heads 41 are provided at both ends of the connector 4. The connecting heads 41 are inserted into the connecting through holes 23 of the two connecting bodies 2 in a one-to-one correspondence to realize the plug-in fixation of the connector 4 and the connecting body 2.

[0129] In this embodiment, two connectors 4 are provided, and the two connectors 4 are located at both ends of the connecting body 2 along the second direction. The two connectors 4 perform dual retention on the two connecting bodies 2, which is beneficial to improving the stability of the semi-fixed denture connection.

[0130] The present invention has the following advantages:

[0131] 1. Compared with traditional removable denture restorations, although there is no large base, the occlusal force can still be shared by the healthy remaining teeth and the gums in the edentulous area. The mechanical design is reasonable, and the foreign body sensation in the mouth is greatly reduced, which improves the comfort of patients wearing dentures.

[0132] 2. Compared with traditional clasp hooks, the overall structure is compact and not easy to get food stuck, which reduces the occurrence of caries, gingivitis, and bad breath; at the same time, it reduces the risk of loosening and breaking caused by metal fatigue due to concentrated force on traditional clasp hooks.

[0133] 3. The arrangement of the retention card body 1 makes efficient use of the periodontal potential of the healthy teeth remaining on both sides of the edentulous area and has a fixing and protective effect on them.

[0134] 4. Due to the setting of the tooth support 3, the selection of resin teeth and resin base materials can be more flexible. For example, fast-setting materials can be selected to achieve the effect of immediately repairing missing teeth. This can avoid the problem of traditional dentures requiring separate processing, which is time-consuming and labor-intensive, and can improve the efficiency of tooth loss repair.

[0135] 5. Because it is a semi-fixed detachable structure, it is easier for doctors to repair dentures.

[0136] It should be noted that in this embodiment, tooth 2 is used as an example for description. In another embodiment, the teeth arranged along the first circumferential direction include tooth 1, tooth 2, tooth 3, and tooth 4, with teeth 2 and 3 being missing teeth. Two retaining clips are connected to tooth 1 and tooth 4, respectively. Two dentures are fixedly mounted on the tooth support.

[0137] In the drawings, the first circumferential direction is indicated as the X direction, the first direction is indicated as the Z direction, and the second direction is indicated as the Y direction.

[0138] In the description of this application, it should be noted that the terms "upper", "lower", "inside", "outside", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships in the working state of this application. They 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on this application.

[0139] In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0140] The present application has been described above in conjunction with preferred embodiments, but these embodiments are merely exemplary and serve only as an illustrative example. On this basis, various replacements and improvements can be made to the present application, all of which fall within the scope of protection of the present application.

Claims

1. A semi-fixed denture frame, characterized in that: It includes a retaining card body, an adapter body and a tooth support; There are two retaining clamps, the first circumferential direction is the arrangement direction of the teeth in the oral cavity; There are two engagement bodies, and the two engagement bodies are located between the two retaining card bodies along the first circumferential direction; the engagement body includes a connecting portion and an inserting portion; The two connecting parts are respectively and detachably fixedly connected to the two retaining card bodies; The two plug-in parts are located between the two connecting parts. A second retention groove is provided on the surface of the plug-in part facing away from the connecting part along the first circumferential direction. The second retention groove passes through the upper end of the plug-in part along the first direction. The first direction is the spacing direction of the root and crown of the denture. The plug-in portion is connected and locked to the connecting portion, and the plug-in portion is located in one of the first position and the second position. When the plug-in portion is connected and locked to the connecting portion, the two second retaining grooves are approximately parallel along the first direction. The plug-in portion in the first position is rotated along a first center line by a set angle and is located in the second position. The first center line is along the first circumferential direction and passes through the center of the plug-in portion. The tooth support is located between the two engagement bodies, and the tooth support includes an edge plate and a mesh frame; The edge plate is provided with two connecting parts corresponding to the two connecting parts one by one, and a connecting protrusion is fixed on the surface of the edge plate facing the connecting parts; The mesh frame is located between the two edge plates, and both ends of the mesh frame are fixedly connected to the two edge plates in a one-to-one correspondence. The mesh frame is used to support the denture and base at the missing tooth position; The two ends of the mesh frame can be relatively rotated and locked, and the positions of the two connecting protrusions along the first circumferential direction are adjusted so that the two connecting protrusions slide along the first direction and are respectively embedded in the two second retaining grooves.

2. The semi-fixed denture according to claim 1, characterized in that: The end of the connecting portion facing the plug-in portion is provided with a groove, and the groove is a regular polygonal groove; The end of the plug-in portion facing the connecting portion is provided with a protrusion, and the protrusion is a column that can be embedded in the groove to achieve locking of the plug-in portion and the connecting portion.

3. The semi-fixed denture according to claim 1, characterized in that: A plurality of second retaining grooves are arranged on the plug-in portion at intervals with the first center line as the axis.

4. The semi-fixed denture according to claim 1, characterized in that: The retaining card body is provided with a first retaining protrusion, and the connecting portion is provided with a first retaining groove. The first retaining protrusion is a component that can be embedded in the first retaining groove to achieve a fixed connection between the connecting portion and the retaining card body.

5. The semi-fixed denture according to claim 1, characterized in that: The retaining card body includes a card body ring and a card body; wherein, The clamp ring is used to be sleeved on the crown of the tooth adjacent to the denture; The card body is fixed to the lower end of the card ring along the first direction, and the lower end is the end of the card ring close to the tooth root.

6. The semi-fixed denture according to claim 1, characterized in that: A retaining portion is provided on the side of the second retaining groove, and the connecting protrusion at least partially passes through the retaining portion when sliding to a set position in the second retaining groove. The retaining portion prevents the connecting protrusion from sliding along the first direction in the second retaining groove.

7. The semi-fixed denture according to claim 1, characterized in that: Both of the connecting bodies are provided with connecting through holes; The semi-fixed denture frame further comprises a connector, which comprises two fixedly connected connectors, and the two connectors are plug-connected to the two connecting through holes in a one-to-one correspondence.

8. The semi-fixed denture according to any one of claims 1 to 7, characterized in that: The mesh frame includes a first frame, a second frame and an adjustment plate; wherein, The first frame and the second frame are respectively fixedly connected to the two edge plates in a one-to-one correspondence; The adjustment disk is located between the first frame and the second frame and is connected to the first frame and the second frame. The first frame is fixed at a third position or a fourth position on the adjustment disk. The first frame in the third position is located at the fourth position after being rotated along a second center line at a set angle. The second center line is a line along the first direction and passing through the center of the adjustment disk.

9. The semi-fixed denture according to claim 8, characterized in that: At least two first slots are provided on the adjusting disk, and the at least two first slots are spaced apart with the second center line as the axis; The first frame is provided with a first clamping block, which is a component that can be embedded in any of the first clamping slots to achieve fixation of the adjustment disk and the first frame.

10. The semi-fixed denture according to claim 8, characterized in that: The mesh frame includes a first frame and a second frame; wherein, The first frame and the second frame are respectively fixedly connected to the two edge plates in a one-to-one correspondence; The first frame is fixed at the fifth position or the sixth position on the second frame. The first frame at the fifth position is located at the sixth position after being rotated along a second center line by a set angle. The second center line is a line along the first direction and passing through the center of the adjustment disk.

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