Zirconium oxide all-ceramic false tooth

Abstract

The utility model discloses a zirconia all-ceramic false tooth, and relates to the technical field of artificial false teeth. The device comprises a retention body, a locking threaded groove is formed in the retention body, an insertion groove communicating with the locking threaded groove is formed in the top of the retention body, a plurality of anti-rotation grooves are evenly formed in the inner side of the insertion groove, a base plate is installed at the top of the retention body, and an insertion rod matched with the insertion groove is fixedly connected to the bottom of the base plate; and one end of the insertion rod is fixedly connected with a plurality of anti-rotation blocks matched with the anti-rotation grooves. According to the zirconium oxide dental crown, the anti-rotation block and the anti-rotation groove are matched for use, so that when the zirconium oxide dental crown transmits force generated by chewing to the base plate and the retainer, the base plate drives the insertion rod to drive the anti-rotation block to abut against the inner wall of the anti-rotation groove, and the situation that the insertion rod is driven to rotate along the interior of the insertion groove due to the chewing force of the bearing platform is reduced; therefore, the connecting strength between the retainer and the base plate is effectively improved, the situation that the locking screw is loosened due to stress is reduced, and the service life of the device is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of artificial dentures, and in particular to zirconia all-ceramic dentures. Background Art

[0002] As people pay more attention to oral health, denture restoration has become an important part of stomatology. The choice of denture materials is directly related to its service life and the patient's oral health. Although traditional metal porcelain dentures are durable, they have been gradually eliminated because metal ions may penetrate into the gingival tissue, causing aesthetic problems such as black lines on the gingival margin. All-ceramic dentures, especially all-ceramic dentures made of zirconium oxide as the main material, have gradually become the mainstream choice in the market due to their beauty, good biocompatibility, high strength, and corrosion resistance.

[0003] Zirconia all-ceramic dentures are made of zirconia ceramic material, which has high strength, high toughness and excellent impact resistance. In addition, zirconia ceramics have good chemical stability and can resist various corrosive media in the mouth, such as saliva, food, drugs, etc. Therefore, the service life of zirconia all-ceramic dentures is usually long, which can reach more than 10 years.

[0004] A general zirconia all-ceramic denture consists of three parts: a retainer, a zirconia crown, and a base. The base is used to connect the retainer and the artificial tooth, and plays a role in supporting and fixing the denture. During installation, fastening screws are mostly used to connect the base and the retainer together. However, with long-term chewing, the collision between teeth can easily cause wear on the base and the retainer, and cause the fastening screws to loosen, reducing the connection strength between the base and the retainer and affecting the service life of the denture. Utility Model Content

[0005] The purpose of the present application is to solve the problem that long-term chewing causes collision between teeth, which easily causes wear between the base and the retainer, loosens the fastening screws, reduces the connection strength between the base and the retainer, and affects the service life of the denture. The present application provides a zirconia all-ceramic denture.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A zirconia all-ceramic denture comprises a retainer, wherein a locking thread groove is arranged inside the retainer, a slot connected to the locking thread groove is arranged on the top of the retainer, a plurality of anti-rotation grooves are evenly arranged on the inner side of the slot, a base is installed on the top of the retainer, a plug rod adapted to the slot is fixedly connected to the bottom of the base, a plurality of anti-rotation blocks adapted to the anti-rotation groove are fixedly connected to one end of the plug rod, a cap is installed on the top of the base, a locking hole is opened on the top of the cap, a locking screw is inserted into the locking hole, one end of the locking screw passes through the base and the plug rod, and is threadedly connected to the locking thread groove, and a zirconia crown is bonded to the top of the cap.

[0008] By adopting the above technical solution, by setting the anti-rotation block and the anti-rotation groove for use together, when the zirconia crown transmits the force generated by chewing to the base and the retainer, the base drives the insertion rod to drive the anti-rotation block to form a conflict with the inner wall of the anti-rotation groove, thereby reducing the situation where the insertion rod is driven by the chewing force to rotate along the inside of the slot of the base, thereby effectively improving the connection strength between the retainer and the base, reducing the situation where the locking screw is loosened due to the force, and extending the service life of the device.

[0009] Furthermore, a buffer groove is provided on the top of the base, and a silicone shock-absorbing pad is filled inside the buffer groove, and the silicone shock-absorbing pad is installed between the support platform and the base.

[0010] By adopting the above technical solution, by setting the supporting platform and the silicone shock-absorbing pad for use together, when the zirconia crown transmits the force to the base through the supporting platform, the elastic deformation of the silicone shock-absorbing pad is used to absorb and disperse the stress, thereby effectively reducing the force transmitted by the zirconia crown to the base and reducing the wear intensity between the base and the retainer.

[0011] Furthermore, a plurality of connecting blocks are evenly arranged on the top of the support platform.

[0012] By adopting the above technical solution, the contact area between the base and the zirconia crown is effectively increased by setting the connecting block, and the connection strength between the base and the zirconia crown is improved.

[0013] Furthermore, an L-shaped concave annular groove is arranged on the top of the base, an annular cover plate is fixedly connected to one end of the support platform, and one end of the annular cover plate is embedded in the L-shaped concave annular groove.

[0014] By adopting the above technical solution, by setting the annular cover plate and the L-shaped concave annular groove for use in combination, when the base drives the annular cover plate to be installed on the top of the base, the base drives the annular cover plate to be covered at one end of the L-shaped concave annular groove, so that under the action of gravity, foreign matter slides along the outer surface of the annular cover plate, reducing the situation where foreign matter enters the interior of the base.

[0015] Furthermore, a sealing groove is provided on the top of the annular cover plate, a silicone sealing ring is installed inside the L-shaped concave ring groove, and a transmission component for driving the silicone sealing ring to move is installed inside the L-shaped concave ring groove.

[0016] By adopting the above technical scheme, by setting the transmission component and the coordinated use of the silicone sealing ring and the sealing groove, when the driving base drives the annular cover plate to form a conflict with the inside of the L-shaped concave ring groove, the annular cover plate pushes the transmission component to drive the silicone sealing ring to embed into the inside of the sealing groove, and utilizes the rebound characteristics of the silicone sealing ring to fill the inside of the sealing groove, and forms a sealed connection between the annular cover plate and the L-shaped concave ring groove, thereby effectively improving the sealing performance of the device.

[0017] Furthermore, the transmission assembly includes a plurality of transmission slide grooves 1 evenly arranged at the bottom of the L-shaped concave ring groove, the transmission slide groove 1 is internally slidably connected with a trapezoidal transmission block, one side of the trapezoidal transmission block is in sliding contact with the annular cover plate, the inner side of the L-shaped concave ring groove is provided with a plurality of transmission slide grooves 2 adapted to the transmission slide groove 1, the transmission slide groove 2 is internally slidably connected with an ejection slider in sliding contact with the trapezoidal transmission block, and the top of the ejection slider is adapted to the silicone sealing ring.

[0018] By adopting the above technical scheme, by setting the annular cover plate and the coordinated use of the trapezoidal transmission block and the ejection slider, when the annular cover plate comes into conflict with the inside of the L-shaped concave ring groove, the annular cover plate pushes the trapezoidal transmission block to eject the ejection slider along the length direction of the transmission slide groove one, and at the same time, the ejection slider pushes the silicone sealing ring along the length direction of the transmission slide groove two to embed into the inside of the sealing groove, thereby facilitating driving the silicone sealing ring to embed into the inside of the sealing groove.

[0019] Furthermore, a support ring plate is fixedly connected to the top of the ejection sliding block, and the silicone sealing ring is fixedly connected to the top of the support ring plate.

[0020] By adopting the above technical solution, the support ring plate is provided to support the silicone sealing ring, thereby increasing the contact area between the ejection slider and the silicone sealing ring and improving the practicability of the device.

[0021] In summary, the present application includes at least one of the following beneficial effects:

[0022] 1. By setting up the anti-rotation block and the anti-rotation groove for use together, when the zirconia crown transmits the force generated by chewing to the base and the retainer, the base drives the insertion rod to drive the anti-rotation block to form a conflict with the inner wall of the anti-rotation groove, thereby reducing the situation where the insertion rod is driven by the chewing force to rotate along the inside of the slot, thereby effectively improving the connection strength between the retainer and the base, reducing the situation where the locking screw is loosened due to force, and extending the service life of the device.

[0023] 2. By setting up the transmission component for coordinated use with the silicone sealing ring and the sealing groove, when the driving base drives the annular cover plate to form a conflict with the inside of the L-shaped concave ring groove, the annular cover plate pushes the transmission component to drive the silicone sealing ring to embed into the inside of the sealing groove, and utilizes the rebound characteristics of the silicone sealing ring to fill the inside of the sealing groove, and forms a sealed connection between the annular cover plate and the L-shaped concave ring groove, thereby effectively improving the sealing performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0025] Figure 2 It is an exploded view of the main body of the device in this application.

[0026] Figure 3 It is an exploded view of the internal structure of the slot in this application.

[0027] Figure 4 It is an exploded view of the internal structure of the L-shaped concave ring groove in this application.

[0028] Figure 5 It is a side cross-sectional view of the device body in this application.

[0029] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0030] Description of reference numerals:

[0031] 1. Retainer; 2. Locking thread groove; 3. Slot; 4. Anti-rotation groove; 5. Base; 6. Insert rod; 7. Anti-rotation block; 8. Abutment; 9. Locking hole; 10. Locking screw; 11. Zirconia crown; 12. Buffer groove; 13. Silicone shock-absorbing pad; 14. Connecting block; 15. L-shaped concave ring groove; 16. Ring cover; 17. Sealing groove; 18. Silicone sealing ring; 19. Transmission slide 1; 20. Trapezoidal transmission block; 21. Transmission slide 2; 22. Ejector slider; 23. Support ring plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-6 This application is described in further detail.

[0033] The embodiments of the present application disclose a zirconia all-ceramic denture.

[0034] Reference Figure 1-Figure 3, a zirconia all-ceramic denture, comprising a retainer 1, a locking thread groove 2 is arranged inside the retainer 1, a slot 3 connected to the locking thread groove 2 is arranged on the top of the retainer 1, a plurality of anti-rotation grooves 4 are evenly arranged on the inner side of the slot 3, a base 5 is installed on the top of the retainer 1, a plug rod 6 adapted to the slot 3 is fixedly connected to the bottom of the base 5, a plurality of anti-rotation blocks 7 adapted to the anti-rotation groove 4 are fixedly connected to one end of the plug rod 6, a cap 8 is installed on the top of the base 5, a locking hole 9 is opened on the top of the cap 8, a locking screw 10 is inserted in the locking hole 9, one end of the locking screw 10 passes through the base 5 and the plug rod 6, and is threadedly connected to the locking thread groove 2, and a zirconia crown 11 is bonded to the top of the cap 8;

[0035] The top of the base 5 is provided with a buffer groove 12, and the buffer groove 12 is filled with a silicone shock-absorbing pad 13, and the silicone shock-absorbing pad 13 is installed between the support 8 and the base 5;

[0036] Furthermore, a plurality of connecting blocks 14 are evenly arranged on the top of the support platform 8 .

[0037] When in use, first, the base 5 is manually pulled to drive the insertion rod 6 to insert into the interior of the slot 3, and the insertion rod 6 drives the anti-rotation block 7 to embed into the interior of the anti-rotation groove 4, and then the platform 8 is manually pulled to be placed on the top of the base 5, and the silicone shock-absorbing pad 13 is squeezed, and then the locking screw 10 is manually pulled through the locking hole 9 and the silicone shock-absorbing pad 13, the base 5, and the insertion rod 6 to enter the interior of the locking thread groove 2, and the locking screw 10 is rotated to form a threaded connection with the locking thread groove 2, and at the same time, the locking screw 10 pushes the platform 8 to move in the direction of the retainer 1, so that the locking screw 10 is fixedly connected between the retainer 1 and the platform 8, and then glue is applied to the top of the platform 8 and the surface of the connecting block 14, and the zirconia crown 11 is stably fixedly connected to the top of the platform 8 through the glue;

[0038] Then, when the zirconia crown 11 is used for chewing, the zirconia crown 11 transmits the force generated by chewing to the top of the base 5 through the base 8, and at the same time, the base 8 squeezes the silicone shock-absorbing pad 13 to deform, and uses the elastic deformation of the silicone shock-absorbing pad 13 to absorb and disperse stress, thereby effectively reducing the chewing force on the base 5. At the same time, when the base 5 transmits the chewing force to the retainer 1, the base 5 drives the insertion rod 6 to drive the anti-rotation block 7 to form a conflict with the inner wall of the anti-rotation groove 4, thereby reducing the situation where the base 5 is driven by the chewing force to drive the insertion rod 6 to rotate along the inside of the slot 3, and improving the threaded connection stability between the locking screw 10 and the locking thread groove 2, thereby effectively improving the connection strength between the retainer 1 and the base 5, reducing the situation where the locking screw 10 is loosened due to force, and extending the service life of the device.

[0039] Reference Figure 2 and Figure 4-Figure 6 The top of the base 5 is provided with an L-shaped concave annular groove 15, one end of the support 8 is fixedly connected with an annular cover plate 16, and one end of the annular cover plate 16 is embedded in the L-shaped concave annular groove 15;

[0040] Among them, a sealing groove 17 is provided on the top of the annular cover plate 16, a silicone sealing ring 18 is installed inside the L-shaped concave ring groove 15, and a transmission component for driving the silicone sealing ring 18 to move is installed inside the L-shaped concave ring groove 15;

[0041] Moreover, the transmission assembly includes a plurality of transmission slide grooves 19 evenly arranged at the bottom of the inner side of the L-shaped concave annular groove 15, a trapezoidal transmission block 20 is slidably connected inside the transmission slide groove 19, one side of the trapezoidal transmission block 20 is in sliding contact with the annular cover plate 16, a plurality of transmission slide grooves 21 adapted to the transmission slide groove 19 are opened on the inner side of the L-shaped concave annular groove 15, an ejection slider 22 slidably connected to the inner side of the transmission slide groove 21 and in sliding contact with the trapezoidal transmission block 20, and the top of the ejection slider 22 is adapted to the silicone sealing ring 18;

[0042] Furthermore, a support ring plate 23 is fixedly connected to the top of the ejection slider 22 , and the silicone sealing ring 18 is fixedly connected to the top of the support ring plate 23 .

[0043] When in use, when the locking screw 10 is pulled through the locking hole 9 and the base 5 and the insertion rod 6, and is threadedly connected with the locking thread groove 2, the base 8 drives the annular cover plate 16 to move in the direction of the retaining body 1, and at the same time, the annular cover plate 16 forms a fixed contact with the inner and outer sides of the L-shaped concave ring groove 15, thereby forming a covering protection for the outer side of the L-shaped concave ring groove 15, reducing the situation where foreign matter enters the base 5, and at the same time, the annular cover plate 16 pushes the trapezoidal transmission block 20 to move along the length direction of the transmission slide groove 19, and one end of the trapezoidal transmission block 20 is aligned with the ejector The slider 22 forms a resistance and pushes the ejection slider 22 to move upward along the length direction of the transmission slide groove 21, and at the same time, the ejection slider 22 pushes the supporting ring plate 23 to drive the silicone sealing ring 18 to move in the direction of the sealing groove 17, and the silicone sealing ring 18 is squeezed and deformed to shrink into the inside of the sealing groove 17, and at the same time, the rebound deformation of the silicone sealing ring 18 is used to fill the inside of the sealing groove 17, so that a sealed connection is formed between the annular cover plate 16 and the L-shaped concave ring groove 15, which further reduces the situation where external foreign matter enters the inside of the base 5 and improves the sealing performance of the device.

[0044] The implementation principle of the zirconia all-ceramic denture in this embodiment is as follows: first, the base 5 is manually pulled to drive the insertion rod 6 to be inserted into the interior of the slot 3, and the insertion rod 6 drives the anti-rotation block 7 to be embedded in the interior of the anti-rotation groove 4, and then the base 8 is manually pulled to be placed on the top of the base 5, and the silicone shock-absorbing pad 13 is squeezed, and then the locking screw 10 is manually pulled through the locking hole 9 and the silicone shock-absorbing pad 13, the base 5, and the insertion rod 6 enter the interior of the locking thread groove 2, and the locking screw 10 is rotated to form a threaded connection with the locking thread groove 2, and at the same time, the base 8 drives the annular cover plate 16 to move in the direction of the retainer 1, and at the same time, the annular cover plate 16 forms a fixed conflict with the inner and outer sides of the L-shaped concave ring groove 15, thereby forming a covering protection for the outer side of the L-shaped concave ring groove 15, reducing the situation where foreign matter enters the interior of the base 5, and at the same time, the annular cover plate 16 pushes the trapezoidal transmission block 20 along the length of the transmission slide groove 19. The ejector slide 22 is pushed upward along the length direction of the transmission slide groove 21, and the ejector slide 22 pushes the supporting ring plate 23 to drive the silicone sealing ring 18 to move in the direction of the sealing groove 17, and the silicone sealing ring 18 is squeezed and deformed to shrink into the inside of the sealing groove 17, and the inside of the sealing groove 17 is filled with the rebound deformation of the silicone sealing ring 18, so that a sealing connection is formed between the annular cover plate 16 and the L-shaped concave ring groove 15, and then the locking screw 10 pushes the platform 8 to move in the direction of the retainer 1, so that the locking screw 10 is fixedly connected between the retainer 1 and the platform 8, and then the top of the platform 8 and the surface of the connecting block 14 are coated with glue, and the zirconia crown 11 is stably fixedly connected to the top of the platform 8 through the glue;

[0045] Then, when the zirconia crown 11 is used for chewing, the zirconia crown 11 transmits the force generated by chewing to the top of the base 5 through the base 8, and at the same time, the base 8 squeezes the silicone shock-absorbing pad 13 to deform, and uses the elastic deformation of the silicone shock-absorbing pad 13 to absorb and disperse stress, thereby effectively reducing the chewing force on the base 5. At the same time, when the base 5 transmits the chewing force to the retainer 1, the base 5 drives the insertion rod 6 to drive the anti-rotation block 7 to form a conflict with the inner wall of the anti-rotation groove 4, thereby reducing the situation where the base 5 is driven by the chewing force to rotate along the inside of the slot 3, and improving the threaded connection stability between the locking screw 10 and the locking thread groove 2.

Claims

1. A zirconia all-ceramic denture, comprising a retainer (1), characterized in that: The retainer (1) is provided with a locking thread groove (2) inside, the top of the retainer (1) is provided with a slot (3) connected to the locking thread groove (2), the inner side of the slot (3) is evenly provided with a plurality of anti-rotation grooves (4), the top of the retainer (1) is provided with a base (5), the bottom of the base (5) is fixedly connected with an insertion rod (6) adapted to the slot (3), one end of the insertion rod (6) is fixedly connected with a plurality of anti-rotation blocks (7) adapted to the anti-rotation grooves (4), the top of the base (5) is provided with a cap (8), the top of the cap (8) is provided with a locking hole (9), a locking screw (10) is inserted into the locking hole (9), one end of the locking screw (10) passes through the base (5) and the insertion rod (6), and is threadedly connected to the locking thread groove (2), and the top of the cap (8) is bonded with a zirconia crown (11).

2. The zirconia all-ceramic denture according to claim 1, characterized in that: A buffer groove (12) is provided on the top of the base (5), and a silicone shock-absorbing pad (13) is filled inside the buffer groove (12). The silicone shock-absorbing pad (13) is installed between the support platform (8) and the base (5).

3. The zirconia all-ceramic denture according to claim 1, characterized in that: A plurality of connection blocks (14) are evenly arranged on the top of the support platform (8).

4. The zirconia all-ceramic denture according to claim 1, characterized in that: An L-shaped concave annular groove (15) is provided on the top of the base (5); an annular cover plate (16) is fixedly connected to one end of the support platform (8); and one end of the annular cover plate (16) is embedded in the L-shaped concave annular groove (15).

5. The zirconia all-ceramic denture according to claim 4, characterized in that: A sealing groove (17) is provided on the top of the annular cover plate (16), a silicone sealing ring (18) is installed inside the L-shaped concave ring groove (15), and a transmission component for driving the silicone sealing ring (18) to move is installed inside the L-shaped concave ring groove (15).

6. The zirconia all-ceramic denture according to claim 5, characterized in that: The transmission assembly comprises a plurality of transmission slide grooves (19) uniformly arranged at the bottom of the inner side of the L-shaped concave annular groove (15); a trapezoidal transmission block (20) is slidably connected to the inner side of the transmission slide groove (19); one side of the trapezoidal transmission block (20) is in sliding contact with the annular cover plate (16); a plurality of transmission slide grooves (21) adapted to the transmission slide grooves (19) are provided on the inner side of the L-shaped concave annular groove (15); an ejection slider (22) is slidably connected to the inner side of the transmission slide grooves (21) and is in sliding contact with the trapezoidal transmission block (20); and the top of the ejection slider (22) is adapted to the silicone sealing ring (18).

7. The zirconia all-ceramic denture according to claim 6, characterized in that: The top of the ejection slider (22) is fixedly connected to a support ring plate (23), and the silicone sealing ring (18) is fixedly connected to the top of the support ring plate (23).

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