A chain-type removable denture

Abstract

This application provides a chain-type removable denture, relating to the field of dentures. It includes artificial teeth mounted on a base, with one artificial tooth corresponding to one base. Adjacent to one artificial tooth is another artificial tooth or a dental sleeve. The base fits snugly against the missing tooth, and the dental sleeve fits snugly over the outside of the abutment tooth. Connectors are provided on both sides of the artificial teeth and both sides of the dental sleeve. A pin is detachably inserted between adjacent connectors. Multiple artificial teeth and dental sleeves are connected sequentially or alternately in a chain-like manner. This application has the advantage that if the user's abutment tooth falls out again, only the corresponding dental sleeve needs to be replaced with an artificial tooth, resulting in minimal structural changes to the overall denture, reducing replacement costs for the user, and shortening the adaptation time to the new denture.

Description

Technical Field

[0001] This application relates to the field of dentures, and in particular to a chain-type removable denture. Background Technology

[0002] Dentures, also known as "false teeth," are essential for patients who have lost teeth or whose teeth cannot regenerate. Removable dentures are restorations that patients can remove and insert themselves for partial tooth loss, restoring the anatomical shape and physiological function of the missing teeth and surrounding tissues.

[0003] Currently, removable partial dentures typically consist of an artificial tooth, a saddle base, a connector, and a clasp. The artificial tooth at the site of tooth loss is installed on the saddle base, which is connected to the clasp via the connector. The clasp, as an external retention device, is removably installed on the abutment tooth, providing good retention and stability for the denture.

[0004] However, once the removable denture is made, its shape is fixed, meaning the number and position of the artificial teeth are fixed. If the user's teeth fall out again or misalignment gradually occurs between two adjacent teeth, the existing removable denture will no longer be suitable for the user to wear, and a new removable denture that fits properly will need to be made. This increases the user's cost and also requires the user to adapt to the new removable denture, resulting in poor wearing comfort. Summary of the Invention

[0005] In order to improve the problem of needing to remake dentures when the user's dental condition changes, this application provides a chain-type removable denture.

[0006] This application provides a chain-type removable denture, employing the following technical solution:

[0007] A chain-type removable denture includes an artificial tooth disposed on a base, with one artificial tooth correspondingly disposed on one base, and another artificial tooth or a tooth sleeve adjacent to one artificial tooth. The base is adapted to fit the missing tooth, and the tooth sleeve is adapted to fit the outside of the abutment tooth. Connectors are provided on both sides of the artificial tooth and both sides of the tooth sleeve, and a pin is detachably inserted between two adjacent connectors. Multiple artificial teeth and tooth sleeves are connected sequentially or alternately in a chain-like manner.

[0008] By adopting the above technical solution, artificial teeth are placed on the missing teeth via a base, and tooth sleeves are placed on the normal abutment teeth. Depending on the distribution of the abutment teeth and the missing teeth, corresponding tooth sleeves or artificial teeth are installed. In other words, two connectors connect the tooth sleeves and artificial teeth, or tooth sleeves and tooth sleeves, forming a chain-like denture assembly. If the user's abutment teeth fall out again, creating new missing teeth, the entire denture assembly is removed, the tooth sleeve corresponding to the fallen abutment tooth is removed, and an artificial tooth is replaced. This allows for a new fit to the user's oral condition without requiring a complete replacement, reducing costs. Furthermore, the partial modifications to the entire denture assembly do not require a significant adaptation period for the user. When removing the tooth sleeves and inserting the artificial teeth, the pins on both sides of the corresponding tooth sleeve are first pulled out to disengage the two connectors. Then, the tooth sleeve is removed, and the connectors on both sides of the new artificial tooth are aligned with the connectors of the adjacent tooth sleeve or artificial tooth. The pins are then inserted, allowing the artificial tooth to replace the tooth sleeve. The operation is simple and the replacement cost is low.

[0009] Optionally, the bottom of the toothed sleeve is also provided with a sleeve inlet, and a pair of symmetrical receiving grooves are provided on the inner wall of the sleeve inlet. A clamping mechanism is provided in the receiving groove. The clamping mechanism includes a sleeve, a rotating shaft and a limiting wheel with an elliptical cross section. The sleeve is clamped in the receiving groove, the rotating shaft is fixed in the sleeve, and the limiting wheel is sleeved on the rotating shaft. The limiting wheel rotates around the rotating shaft and presses against the outer side of the base tooth.

[0010] By adopting the above technical solution, the denture sleeve is fitted onto the outer wall of the abutment tooth through the insertion port. During the insertion process, the outer wall of the abutment tooth will interfere with the limiting wheel, thereby promoting the rotation of the limiting wheel. Since the limiting wheel is elliptical, the pressing force of the limiting wheel on the abutment tooth will gradually increase, which can achieve reliable fixation of the denture sleeve on the abutment tooth. In this way, with the denture sleeve with good fixation as the fixing base point, after all the denture sleeves are connected to the artificial teeth in a chain-like manner, the overall stability is good and will not fall off accidentally, thus improving the stability of wearing. After the clasp is removed from the receiving slot, the receiving slot, clasp, and clamping mechanism can be cleaned to prevent food residue from getting stuck and causing bacterial growth. Cleaning can keep the denture clean and is beneficial to oral hygiene.

[0011] Optionally, the length of the limiting wheel is greater than the height of the sleeve, and the limiting wheel undergoes elastic deformation after pressing against the base tooth.

[0012] By adopting the above technical solution, the limiting wheel will rotate to a state where it is locked with the ferrule. In other words, a portion of the limiting wheel will always be located on the outside of the ferrule and in close contact with the base tooth. Furthermore, the limiting wheel can undergo elastic deformation after being squeezed by the base tooth, making the limiting wheel's limiting and locking effect on the base tooth reliable.

[0013] Optionally, both sides of the artificial tooth and the tooth sleeve are provided with grooves, and the openings of a pair of grooves are arranged opposite each other to form a receiving cavity, and the connector and the pin are both located in the receiving cavity.

[0014] By adopting the above technical solutions, the connection distance between artificial teeth, between artificial teeth and dental sleeves, and between dental sleeves can be reduced, thereby improving the overall aesthetics.

[0015] Optionally, the connector includes a first connector and a second connector. A first connector is provided in one side groove of the artificial tooth and a side groove of the tooth sleeve. A pair of second connectors are provided in the other side groove of the artificial tooth and the other side groove of the tooth sleeve. One first connector is disposed between a pair of second connectors. Both the first connector and the second connector are provided with through holes. The pin is inserted into three coaxially arranged through holes.

[0016] By adopting the above technical solution, grooves are provided on both sides of the tooth sleeve, and a first connector and a second connector are respectively and correspondingly provided in the two grooves. Grooves are also provided on both sides of the artificial tooth, and a first connector and a second connector are respectively and correspondingly provided in the two grooves. The first connector of the tooth sleeve is connected to the second connector of the adjacent tooth sleeve or to the second connector of the adjacent artificial tooth, and the second connector of the tooth sleeve is connected to the first connector of the adjacent tooth sleeve or to the first connector of the adjacent artificial tooth. In this way, by inserting a pin into the through hole of one first connector and two second connectors that are connected to each other, the first connector and the second connector can be hinged to each other. In this way, multiple tooth sleeves and artificial teeth can be reliably connected. And because it is a hinged relationship, a certain amount of vertical misalignment can be generated between adjacent tooth sleeves or between tooth sleeves and artificial teeth, which can better fit with missing teeth or abutment teeth.

[0017] Optionally, the connector has an opening on the side connected to the groove, and a spring is provided in the opening. One end of the spring is connected to the bottom of the opening, and the other end of the spring is connected to the groove.

[0018] By adopting the above technical solution, the spring can achieve the connection between the connector and the groove, and at the same time, by pulling the toothed sleeve or artificial tooth outward, the spring is in an extended state, thereby increasing the distance between the toothed sleeve and the artificial tooth, which facilitates the removal of the pin and the replacement of the toothed sleeve with the artificial tooth.

[0019] Optionally, there is an adjustment gap between the second connector and the first connector; the pin is detachably provided with a C-shaped clip, and several C-shaped clips are respectively provided within the two adjustment gaps.

[0020] By adopting the above technical solution, when the number of C-shaped clips in the adjustment gap on one side is not equal to the number of C-shaped clips in the adjustment gap on the other side, a certain amount of lateral misalignment will occur between the first connector and the second connector. By adjusting the number of C-shaped clips in the two adjustment gaps, the direction and amount of lateral misalignment can be controlled, thereby making the fit between the tooth sleeve or artificial tooth and the abutment tooth or missing tooth higher, which can significantly improve the user's wearing comfort.

[0021] Optionally, the pin is provided with multiple limiting grooves at the adjustment distance, the limiting grooves extend along the axial direction of the pin, and the multiple limiting grooves are arranged at intervals on the outer wall of the pin; the inner side of the C-shaped clip is provided with several limiting blocks, and the limiting blocks are adapted to be locked in the limiting grooves.

[0022] By adopting the above technical solution, the C-shaped clip is an elastic clip. After being inserted into the pin, it may rotate around the pin, causing a foreign body sensation for the user. By setting a limiting groove on the outer wall of the pin and a limiting block on the inner side of the C-shaped clip, the C-shaped clip can be adjusted by a single rotation after being inserted into the pin, so that the limiting block is fully inserted into the limiting groove. This effectively prevents the C-shaped clip from rotating on the pin, ensuring that the C-shaped clip will not rotate after completing the lateral misalignment of the first and second connectors, thus eliminating the foreign body sensation for the user when wearing the denture.

[0023] Optionally, the distance between two adjacent limiting blocks is the same as the distance between two adjacent limiting slots; the number of limiting slots is greater than the number of limiting blocks.

[0024] By adopting the above technical solution, it is ensured that the upper limit block of the C-shaped card can be accurately inserted into the limiting groove by simply rotating it. Furthermore, when rotating the C-shaped card, the limiting blocks of different C-shaped cards can be inserted into different limiting grooves, thereby making the notches of two adjacent C-shaped cards staggered, which facilitates the disassembly of the C-shaped card later.

[0025] Optionally, the length of the limiting groove is greater than the length of the adjustment spacing.

[0026] By adopting the above technical solution, it is ensured that after the first and second connecting bodies are laterally misaligned, the pin shaft in the part of the adjustment gap still has a limit groove, ensuring that the limit block of the C-shaped clip can be reliably locked into the limit groove and will not fall off automatically.

[0027] In summary, this application has the following beneficial effects:

[0028] 1. By connecting the dental crown to the artificial tooth or the dental crown to the dental crown through two connectors, a chain-like denture is formed. If the user's abutment tooth falls out again and a new tooth is missing, the corresponding dental crown can be replaced with an artificial tooth without replacing the whole denture, thus reducing costs.

[0029] 2. By setting a spring between the connector and the groove, and by connecting the toothed sleeve and the artificial tooth, the distance between the toothed sleeve and the artificial tooth is increased, which facilitates the removal of the pin and the replacement of the toothed sleeve with the artificial tooth.

[0030] 3. By adjusting the number of C-shaped clips within two adjustment intervals, the lateral misalignment direction and displacement of the first and second connectors can be controlled; through the hinge action, the vertical misalignment adjustment between tooth sleeves, artificial teeth, and tooth sleeves and artificial teeth can be achieved, thereby making the fit between the tooth sleeve or artificial tooth and the base tooth or missing tooth higher, which can significantly improve the user's wearing comfort. Attached Figure Description

[0031] Figure 1 This is a schematic perspective view of this application;

[0032] Figure 2 This is a schematic internal structure diagram of the tooth sleeve and the base tooth in this application;

[0033] Figure 3 yes Figure 2 A schematic diagram of the action state;

[0034] Figure 4 It is a schematic 3D diagram of two adjacent artificial teeth;

[0035] Figure 5 This is a schematic 3D view of the connector;

[0036] Figure 6 It is a schematic 3D diagram of the connector in a lateral misalignment state;

[0037] Figure 7 It is a schematic diagram of the internal structure of two adjacent artificial teeth;

[0038] Figure 8 yes Figure 7 A schematic diagram of the action state;

[0039] Figure 9 It is a schematic 3D diagram showing the connection state of the pin and the C-shaped clamp;

[0040] In the diagram: 1. Artificial tooth; 11. Base; 12. Groove; 13. Receiving cavity; 2. Tooth sleeve; 21. Sleeve entrance; 22. Receiving groove; 221. Sleeve; 222. Rotating shaft; 223. Limiting wheel; 3. Tooth gap; 4. Base tooth; 5. Connector; 51. First connector; 511. Perforation; 512. Opening; 513. Spring; 514. Adjustable spacing; 52. Second connector; 6. Pin; 60. Limiting groove; 7. C-shaped clip; 70. Limiting block. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0042] Figure 1 This is a schematic perspective view of this application. See also Figure 1 A chain-type removable denture includes an artificial tooth 1 and a tooth sleeve 2 connected sequentially or alternately in a chain shape by a connector 5 and a pin 6. The artificial tooth 1 is placed on a base 11, and the edge of the base 11 and the tooth vacancy 3 form an edge seal. Under the action of atmospheric pressure, the base 11 and the tooth vacancy 3 fit tightly together to fix the artificial tooth 1. Figure 2 This is a schematic internal structure diagram of the tooth sleeve and the base tooth in this application. Figure 3 yes Figure 2 A diagram illustrating the action state. See also... Figure 2 and Figure 3 The bottom of the tooth sleeve 2 is provided with a sleeve inlet 21. The tooth sleeve 2 is sleeved onto the outer wall of the base tooth 4 through the sleeve inlet 21. The inner wall of the sleeve inlet 21 is provided with a pair of receiving grooves 22 for placing the clamping mechanism. The clamping mechanism includes a sleeve 221, a rotating shaft 222, and a limiting wheel 223 with an elliptical cross section. The sleeve 221 is clamped in the receiving groove 22, the rotating shaft 222 is fixed in the sleeve 221, and the limiting wheel 223 rotates on the rotating shaft 222. The elastic compression between the limiting wheel 223 and the base tooth 4 forms the fixation of the tooth sleeve 2. Then, with multiple tooth sleeves 2 as fixed base points, the remaining artificial teeth 1 are directly It can be connected indirectly to the dental sleeve 2, so that the chain-like denture can be reliably fixed in the user's mouth. By releasing the connection between the two connectors 5 by the pin 6, the replacement of a single dental sleeve 2 or artificial tooth can be achieved. In this way, if the user's abutment tooth 4 falls out again and forms a new tooth vacancy 3, the corresponding dental sleeve 2 can be quickly and conveniently replaced with an artificial tooth, avoiding the need to replace the entire denture and reducing the user's cost. Moreover, since a single dental sleeve 2 can be replaced, the overall shape of the denture is less changed, shortening the user's adaptation time.

[0043] Figure 4 This is a schematic 3D diagram of two adjacent artificial teeth. See also... Figure 4Grooves 12 are provided on both sides of the dental sleeve 2 or on both sides of the artificial tooth 1. The opposite grooves 12 of two adjacent grooves can form a receiving cavity 13. After connecting the grooves 12 of the connector 5, the connector 5 and the pin 6 can be placed in the receiving cavity 13, making the overall arrangement of the denture more compact and aesthetically pleasing. The connection method of two adjacent dental sleeves 2 or one dental sleeve 2 and one artificial tooth 1 is the same as the connection method of two adjacent artificial teeth 1, so no separate drawing is required.

[0044] The connector 5 includes a first connector 51 and a second connector 52. A first connector 51 is located in a groove 12 on one side of the tooth sleeve 2, and a first connector 51 is located in a groove 12 on one side of the artificial tooth 1. Two second connectors 52 are located in grooves 12 on the other side of the tooth sleeve 2, and two second connectors 52 are located in grooves 12 on the other side of the artificial tooth 1. One first connector 51 is positioned between two second connectors 52 and connected by a pin 6 to form a hinge structure. Thus, two adjacent tooth sleeves 2, two adjacent artificial teeth 1, or one adjacent tooth sleeve 2 and one artificial tooth 1 can be connected. A certain vertical misalignment can occur between them. Furthermore, since there is an adjustment gap 514 between the first connecting body 51 and the two second connecting bodies 52 forming the hinge structure, a C-shaped clip 7 is inserted on the pin 6 at the position of the adjustment gap 514. By adjusting the number of C-shaped clips 7 in the two adjustment gaps 514, a certain lateral misalignment can be achieved between two adjacent tooth sleeves 2, two adjacent artificial teeth 1, or one adjacent tooth sleeve 2 and one artificial tooth 1. This allows the chain-like denture to reliably fit the user's oral cavity and improves the wearing comfort.

[0045] Figure 5 This is a schematic 3D diagram of the connector. Figure 6 This is a schematic 3D view showing the connector in a lateral misalignment state. See also... Figure 5 and Figure 6 The first connector 51 and the second connector 52 are connected to the corresponding groove 12 on one side, and an opening 512 is provided. A spring 513 is provided in the opening 512. One end of the spring 513 is connected to the bottom of the opening 512, and the other end of the spring 513 is connected to the groove 12. Figure 7 This is a schematic diagram of the internal structure of two adjacent artificial teeth. Figure 8 yes Figure 7 See the diagram of the action state. Figure 7 and Figure 8When the adjacent first connector 51 and second connector 52 are connected, the tooth sleeve 2 that needs to be replaced and the adjacent artificial tooth 1 or tooth sleeve 2 are pulled outward to separate them and the spring 513 is in a stretched state, which facilitates the disassembly of the pin 6. After the tooth sleeve 2 is replaced with the artificial tooth 1, the replaced artificial tooth 1 and the adjacent artificial tooth 1 or tooth sleeve 2 can automatically fit together under the elastic pull of the spring 513.

[0046] Figure 9 This is a schematic 3D diagram showing the connection between the pin and the C-shaped clamp. See also... Figure 9 The pin 6 has multiple limiting grooves 60 at the adjustment gap 514. The length of each limiting groove 60 is greater than the length of the adjustment gap 514. The limiting grooves 60 extend axially along the pin 6, and the multiple limiting grooves 60 are spaced apart on the outer wall of the pin 6. The inner side of the C-shaped clamp 7 has several limiting blocks 70, the number of which is less than the number of limiting grooves 60. The limiting blocks 70 are fitted into the limiting grooves 60. The distance between two adjacent limiting blocks 70 is the same as the distance between two adjacent limiting grooves 60. The C-shaped clip 7 is engaged with the pin 6 through elastic tension. By rotating the C-shaped clip 7, the limiting block 70 on the C-shaped clip 7 is engaged into the limiting groove 60 on the pin 6, which can prevent the C-shaped clip 7 from rotating during use and causing discomfort to the user. By setting more limiting grooves 60 than limiting blocks 70, the C-shaped clip 7 can be engaged with the pin 6 at any angle, and the limiting block 70 and the limiting groove 60 can be matched by a small rotation. Moreover, by engaging the limiting blocks 70 at the same position of two adjacent C-shaped clips 7 into different limiting grooves 60, the two C-shaped clips 7 can be staggered and locked, which makes it easy to quickly remove the C-shaped clip 7 at the corresponding position when adjusting the number of C-shaped clips 7 on both sides of the first connecting body 51.

[0047] The working process of this application is as follows: Artificial teeth 1 and tooth sleeves 2 are connected to each other sequentially or alternately through connector 5 and pin 6 to form a chain-like denture. After the user's abutment teeth 4 fall out again, only the tooth sleeves 2 at the corresponding positions need to be replaced with artificial teeth 1. The structural changes to the denture are small, which can reduce the user's replacement cost and reduce the adaptation time to the new denture.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A chain denture comprising artificial teeth (1) arranged on a base (11), characterized in that, One of the artificial tooth (1) is correspondingly arranged on a base (11), and the adjacent artificial tooth (1) is another artificial tooth (1) or a tooth sleeve (2), the base (11) is adaptively fitted on the tooth defect (3), and the tooth sleeve (2) is adaptively sleeved on the outside of the basal tooth (4); Both sides of the artificial tooth (1) and both sides of the tooth sleeve (2) are provided with connecting pieces (5), and the adjacent two connecting pieces (5) are detachably inserted with a pin shaft (6), and a plurality of artificial teeth (1) and tooth sleeves (2) are connected in sequence or alternately and in the form of a chain. Both sides of the artificial tooth (1) and the tooth sleeve (2) are provided with grooves (12), and a pair of the grooves (12) are oppositely arranged and form a receiving cavity (13), and the connecting piece (5) and the pin shaft (6) are arranged in the receiving cavity (13). The connecting piece (5) comprises a first connecting body (51) and a second connecting body (52), and one first connecting body (51) is arranged in one side groove (12) of the artificial tooth (1) and one side groove (12) of the tooth sleeve (2), and a pair of second connecting bodies (52) are arranged in the other side groove (12) of the artificial tooth (1) and the other side groove (12) of the tooth sleeve (2). One of the first connecting body (51) is arranged between a pair of the second connecting body (52), and the first connecting body (51) and the second connecting body (52) are provided with through holes (511), and the pin shaft (6) is inserted in three coaxially arranged through holes (511). There is an adjusting interval (514) between a pair of the second connecting body (52) and the first connecting body (51). The pin shaft (6) is detachably provided with a C-shaped clamping piece (7), and a plurality of C-shaped clamping pieces (7) are arranged in the two adjusting intervals (514) respectively.

2. A bar removable denture according to claim 1, wherein The bottom of the tooth sleeve (2) is further provided with a sleeve inlet (21), and a pair of receiving grooves (22) are symmetrically arranged on the inner wall of the sleeve inlet (21), and a clamping mechanism is arranged in the receiving groove (22). The clamping mechanism comprises a clamping sleeve (221), a rotating shaft (222) and an oval-shaped limiting wheel (223), the clamping sleeve (221) is clamped in the receiving groove (22), the rotating shaft (222) is fixedly arranged in the clamping sleeve (221), and the limiting wheel (223) is sleeved on the rotating shaft (222), and the limiting wheel (223) rotates around the rotating shaft (222) and presses the outside of the basal tooth (4).

3. A bar removable denture according to claim 2, wherein, The length of the limiting wheel (223) is greater than the height of the clamping sleeve (221), and the limiting wheel (223) is elastically deformed after pressing the basal tooth (4).

4. The bar denture of claim 1 wherein, One side of the connecting piece (5) and the groove (12) is provided with an opening (512), the opening (512) is provided with a spring (513), one end of the spring (513) is connected with the hole bottom of the opening (512), and the other end of the spring (513) is connected with the groove (12).

5. The bar removable denture of claim 1, wherein, The pin shaft (6) is provided with a plurality of limiting grooves (60) at the adjusting interval (514), the limiting grooves (60) extend along the axial direction of the pin shaft (6), and the plurality of limiting grooves (60) are arranged on the outer wall of the pin shaft (6) at intervals. The inner side of the C-shaped clamping piece (7) is provided with a plurality of limiting blocks (70), and the limiting blocks (70) are clamped in the limiting grooves (60) in a matched manner.

6. A bar removable denture according to claim 5, wherein, The distance between two adjacent limiting blocks (70) is the same as the distance between two adjacent limiting grooves (60). The number of the limiting grooves (60) is greater than the number of the limiting blocks (70).

7. A bar removable denture according to claim 5, wherein, The length of the limiting grooves (60) is greater than the length of the adjusting interval (514).

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