Zirconium oxide all-ceramic tooth

Abstract

The utility model relates to the technical field of all-ceramic teeth, in particular to a zirconium oxide all-ceramic tooth, which comprises an implant, an abutment is mounted on the implant, a dental crown is mounted on the abutment, the dental crown is a zirconium oxide dental crown, a mounting structure is arranged between the dental crown and the implant, and a wear-resistant structure is arranged on the surface of the dental crown. When the all-ceramic tooth is used for chewing, the convex grinding layer on the surface of the dental crown can play a more chewing role, and the light-cured resin in the interlayer transmits pressure to the inner core for reduction when the grinding layer is subjected to the pressure, so that the shaking of the dental crown can be reduced when the all-ceramic tooth is repeatedly chewed; and the problem of looseness of the all-ceramic tooth is reduced, so that the problem that the all-ceramic tooth is easy to crack due to a porcelain baking process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of all-ceramic teeth, in particular to zirconium oxide all-ceramic teeth. Background Art

[0002] All-ceramic teeth can also be divided into alumina all-ceramic teeth, cast all-ceramic teeth and zirconium dioxide all-ceramic teeth according to different materials. Zirconia (i.e. zirconium dioxide) all-ceramic teeth are a type of all-ceramic teeth. Because its internal structure material is zirconium oxide ceramic, it is called zirconium oxide all-ceramic teeth. Zirconia all-ceramic teeth can be in the form of crowns, bridges, etc.

[0003] An all-ceramic tooth mentioned in the existing Chinese public patent (authorization announcement number: CN219207413U). It includes a crown, an implant, and a base connected to the crown and the implant at both ends. The base is a truncated cone. The surface of the crown close to the base is provided with a covering groove covering the base, and the surface of the covering groove is provided with a mounting groove. The base is protruding and fixed with a mounting rod threadedly connected to the mounting groove. The implant is provided with a threaded hole. The surface of the base is protruding and fixed with a screw threadedly connected to the threaded hole. The base is provided with a limiter to limit the torsion between the crown and the base. The upper end surface of the base is provided with a first slide groove. The limiter is a limiter rod that slides through the first slide groove. The crown is provided with a limit hole for the limiter rod to slide and insert. The base is provided with a pusher that drives the limiter rod to slide toward the direction close to the limit hole. This application has the effect of reducing the possibility of loosening of all-ceramic teeth.

[0004] Existing zirconia all-ceramic teeth all adopt a single-layer structure, and because the zirconia porcelain teeth are formed by baking, the porcelain crown body has a certain brittleness. When the wearer chews harder substances, it is easy to break, which affects the user's oral cavity and eating process. Utility Model Content

[0005] The purpose of the present application is to solve the problem that existing zirconia all-ceramic teeth are prone to breakage when chewing harder substances. The present application provides zirconia all-ceramic teeth.

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

[0007] The zirconia all-ceramic tooth comprises an implant, on which a base is mounted, on which a crown is mounted, the crown being a zirconia crown, a mounting structure being arranged between the crown and the implant, and a wear-resistant structure being arranged on the surface of the crown.

[0008] By adopting the above technical solution, when a patient implants the zirconia all-ceramic tooth, the implant is first implanted into the patient's dental bed, and then the abutment and the crown are installed in sequence through the installation structure. The installation effect of the all-ceramic tooth is strengthened by the installation structure, and it is limited to make its installation more convenient and its stability stronger after installation. When a person chews through the zirconia all-ceramic tooth, the wear-resistant structure on the crown will grind the chewing material instead of the crown body, and the wear resistance of the crown is improved through the multi-level wear-resistant structure, reducing the chewing pressure on the crown, thereby improving the durability of the zirconia all-ceramic tooth.

[0009] Further, the installation structure includes a threaded groove opened on the implant, a threaded sleeve is fixedly connected to the abutment, and the threaded groove is adapted to the threaded sleeve.

[0010] By adopting the above technical solution, the threaded sleeve on the abutment is adapted to the threaded groove, and the abutment is screwed to make the threaded sleeve enter the threaded groove, making the installation of the abutment more convenient and also facilitating its disassembly.

[0011] Further, a limiting post is fixedly connected to the implant, the limiting post is slidably arranged with the abutment, a hexagonal limiting block is fixedly connected to the crown, and a limiting groove is opened on the hexagonal limiting block, and the limiting groove is adapted to the limiting post.

[0012] By adopting the above technical solution, the abutment, the crown and the implant are connected together by the limiting post entering the limiting groove on the hexagonal limiting block, improving the overall stability of the all-ceramic tooth.

[0013] Further, a hexagonal groove is opened on the abutment, the hexagonal groove is adapted to the hexagonal limiting block, three mounting grooves are opened on the hexagonal groove and are evenly distributed in a circumferential manner, three mounting plates are fixedly connected to the hexagonal limiting block, and the mounting plates are adapted to the mounting grooves.

[0014] By adopting the above technical solution, the hexagonal limiting block and the mounting plates respectively correspond to the hexagonal groove and the mounting grooves, and the crown is inserted into the hexagonal groove on the abutment along with the hexagonal limiting block, making the installation of the crown more convenient and accurate.

[0015] Further, a connecting sleeve is fixedly connected to the crown, four connecting grooves are opened on the abutment and are evenly distributed in a circumferential manner, and adhesive resin is poured into the connecting sleeve.

[0016] By adopting the above technical solution, after the crown is connected to the abutment, the adhesive resin in the connecting sleeve flows out and adheres the crown to the abutment.

[0017] Further, the wear-resistant structure includes a grinding layer fixedly connected to the crown, the grinding layer is a zirconia layer, a groove plate is adhered to the groove of the crown, and the groove plate is a glass ionomer resin plate.

[0018] By adopting the above technical solution, when using this all-ceramic tooth for chewing, the grinding layer protruding on the surface of the crown will play a greater chewing role, improving the wear resistance of the crown through a multi-layer wear-resistant structure and reducing the chewing pressure on the crown.

[0019] Furthermore, a sandwich layer is fixedly connected inside the grinding layer. The sandwich layer is made of light-curing resin. An inner core is fixedly connected inside the sandwich layer. The inner core is fixedly connected to the crown, and the inner core is a zirconia layer.

[0020] By adopting the above technical solution, when the grinding layer is under pressure, the light-curing resin in the sandwich layer transmits the pressure to the inner core for reduction, thereby reducing the problem of easy cracking of the all-ceramic tooth caused by the porcelain-fusing process.

[0021] Furthermore, an adhesion groove is formed in the crown groove. Adhesion resin is injected into the adhesion groove. A fixing column is fixedly connected to the groove plate. The fixing column is located in the middle of the crown, and the connection grooves are distributed around the abutment.

[0022] By adopting the above technical solution, by removing the groove plate from the surface of the crown and cleaning the groove plate, during normal use, the groove plate can protect the crown groove where residues are likely to accumulate, thereby reducing the difficulty of cleaning residues.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. In the present application, when using this all-ceramic tooth for chewing, the grinding layer protruding on the surface of the crown will play a greater chewing role, and when the grinding layer is under pressure, the light-curing resin in the sandwich layer transmits the pressure to the inner core for reduction, so that when the all-ceramic tooth is chewed repeatedly, the shaking of the crown can be reduced, the problem of loosening of the all-ceramic tooth is reduced, and thus the problem of easy cracking of the all-ceramic tooth caused by the porcelain-fusing process is reduced.

[0025] 2. In the present application, when installing the zirconia all-ceramic tooth, it is easier to align the orientation through multiple limit means, making the installation of the all-ceramic tooth more convenient, improving the connection stability between different components of the all-ceramic tooth, and further making the all-ceramic tooth more stable during use, reducing the problem of the crown being fractured and separated under force. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional structural schematic diagram of the zirconia all-ceramic tooth in the present application;

[0027] Figure 2 is a structural schematic diagram of the crown of the zirconia all-ceramic tooth in the present application;

[0028] Figure 3It is a schematic diagram of the abutment structure of the zirconia all-ceramic tooth in this application;

[0029] Figure 4 It is a schematic diagram of the internal structure of the zirconia all-ceramic tooth in this application;

[0030] Figure 5 It is a partial cross-sectional view of the zirconia all-ceramic tooth in this application.

[0031] Explanation of reference numerals:

[0032] 1. Implant; 2. Abutment; 3. Dental crown; 4. Limit post; 5. Threaded sleeve; 6. Installation groove; 7. Connection groove; 8. Hexagonal limit block; 9. Installation plate; 10. Connection sleeve; 11. Grooved plate; 12. Grinding layer; 13. Interlayer; 14. Inner core; 15. Fixed post. Detailed implementation manners

[0033] The following further elaborates on this application in conjunction with the attached Figures 1-5 drawings.

[0034] This application example discloses a zirconia all-ceramic tooth.

[0035] Referring to Figure 1 , the zirconia all-ceramic tooth includes an implant 1, an abutment 2 is installed on the implant 1, a dental crown 3 is installed on the abutment 2, the dental crown 3 is a zirconia dental crown 3, an installation structure is provided between the dental crown 3 and the implant 1, and a wear-resistant structure is provided on the surface of the dental crown 3.

[0036] When a patient implants this zirconia all-ceramic tooth, first implant the implant 1 into the patient's tooth bed, and then install the abutment 2 and the dental crown 3 in sequence through the installation structure. The installation structure strengthens the installation effect of the all-ceramic tooth, limits it to make the installation more convenient, and makes its stability stronger after installation. When a person chews through this zirconia all-ceramic tooth, the wear-resistant structure on the dental crown 3 will grind the chewing material instead of the main body of the dental crown 3, and the wear resistance of the dental crown 3 is improved through the multi-level wear-resistant structure, reducing the chewing pressure on the dental crown 3, thereby improving the durability of the zirconia all-ceramic tooth.

[0037] Referring to Figure 2 and Figure 3 , Figure 4, The installation structure includes a threaded groove opened on the implant 1. A threaded sleeve 5 is fixedly connected to the abutment 2, and the threaded groove is adapted to the threaded sleeve 5. A limit post 4 is fixedly connected to the implant 1. The limit post 4 is slidably arranged with the abutment 2. A hexagonal limit block 8 is fixedly connected to the dental crown 3. A limit groove is opened on the hexagonal limit block 8, and the limit groove is adapted to the limit post 4. A hexagonal groove is opened on the abutment 2, and the hexagonal groove is adapted to the hexagonal limit block 8. Three installation grooves 6 are opened on the hexagonal groove and are evenly distributed in a circle. Three installation plates 9 are fixedly connected to the hexagonal limit block 8, and the installation plates 9 are adapted to the installation grooves 6. A connecting sleeve 10 is fixedly connected to the dental crown 3. Four connecting grooves 7 are opened on the abutment 2 and are evenly distributed in a circle. Adhesive resin is poured into the connecting sleeve 10.

[0038] When installing the zirconia all-ceramic tooth, first install the implant 1 on the patient's tooth bed, then fit the threaded sleeve 5 on the abutment 2 with the threaded groove, turn the abutment 2 to make the threaded sleeve 5 enter the threaded groove, and install the abutment 2 on the implant 1. At this time, the limit post 4 passes through the abutment 2 and is located at the center of the hexagonal groove. Then, pick up the dental crown 3, and make the hexagonal limit block 8 and the installation plate 9 correspond to the hexagonal groove and the installation groove 6 respectively. Insert the dental crown 3 into the hexagonal groove on the abutment 2 along with the hexagonal limit block 8. At this time, the limit post 4 enters the limit groove on the hexagonal limit block 8, and the connecting sleeve 10 containing the adhesive resin also inserts into the connecting groove 7. As the adhesive resin in the connecting sleeve 10 flows out, the dental crown 3 is adhered to the abutment 2, and the limit post 4 also limits the positions among the implant 1, the abutment 2 and the dental crown 3. This makes it easier to align the all-ceramic tooth in terms of orientation during installation through multiple limit means, making the installation of the all-ceramic tooth more convenient, and also enhancing the connection stability between different components of the all-ceramic tooth. Furthermore, it makes the all-ceramic tooth more stable during use and reduces the problem of the dental crown 3 being broken and separated due to stress.

[0039] Refer to Figure 1 With Figure 5 , The wear-resistant structure includes a grinding layer 12 fixedly connected to the dental crown 3. The grinding layer 12 is a zirconia layer. A groove plate 11 is adhered to the groove of the dental crown 3, and the groove plate 11 is a glass ionomer resin plate. A sandwich layer 13 is fixedly connected inside the grinding layer 12. The sandwich layer 13 is a light-curing resin. An inner core 14 is fixedly connected inside the sandwich layer 13, and the inner core 14 is fixedly connected to the dental crown 3. The inner core 14 is a zirconia layer. An adhesive groove is opened in the groove of the dental crown 3, and adhesive resin is injected into the adhesive groove. A fixing post 15 is fixedly connected to the groove plate 11, and the fixing post 15 is in the middle of the dental crown 3. The connecting grooves 7 are distributed around the abutment 2.

[0040] When chewing with this all-ceramic tooth, the convex grinding layer 12 on the surface of the dental crown 3 will play a greater chewing role. When the grinding layer 12 is under pressure, the light-curing resin in the interlayer 13 will transmit the pressure to the inner core 14 for reduction, thereby reducing the problem of easy cracking of the all-ceramic tooth caused by the porcelain-fusing process. This makes the all-ceramic tooth less likely to wobble when chewing repeatedly and reduces the problem of the all-ceramic tooth becoming loose. When it is necessary to clean the all-ceramic tooth, by removing the groove plate 11 from the surface of the dental crown 3 and cleaning the groove plate 11, during normal use, the groove plate 11 will protect the groove of the dental crown 3 where residues are likely to accumulate, thereby reducing the difficulty of cleaning the residues and making the all-ceramic tooth more durable.

[0041] Working principle: When installing the zirconia all-ceramic tooth, first install the implant 1 on the patient's tooth bed, then make the thread sleeve 5 on the abutment 2 fit the thread groove, and screw the abutment 2 so that the thread sleeve 5 enters the thread groove to install the abutment 2 on the implant 1. At this time, the limit post 4 passes through the abutment 2 and is located at the center of the hexagonal groove. Then, pick up the dental crown 3. Since the hexagonal limit block 8 and the mounting plate 9 correspond to the hexagonal groove and the mounting groove 6 respectively, insert the dental crown 3 into the hexagonal groove on the abutment 2 along with the hexagonal limit block 8. At this time, the limit post 4 enters the limit groove on the hexagonal limit block 8, and the connecting sleeve 10 with adhesive resin inside also inserts into the connecting groove 7. As the adhesive resin in the connecting sleeve 10 flows out, the dental crown 3 is adhered to the abutment 2.

[0042] When chewing with this all-ceramic tooth, the convex grinding layer 12 on the surface of the dental crown 3 will play a greater chewing role. When the grinding layer 12 is under pressure, the light-curing resin in the interlayer 13 will transmit the pressure to the inner core 14 for reduction, thereby reducing the problem of easy cracking of the all-ceramic tooth caused by the porcelain-fusing process.

[0043] When it is necessary to clean the all-ceramic tooth, by removing the groove plate 11 from the surface of the dental crown 3 and cleaning the groove plate 11, during normal use, the groove plate 11 will protect the groove of the dental crown 3 where residues are likely to accumulate, thereby reducing the difficulty of cleaning the residues.

Claims

1. A zirconia all-ceramic tooth, comprising an implant (1), characterized in that: The implant (1) is mounted with a base (2), a crown (3) is mounted on the base (2), the crown (3) is a zirconia crown (3), a mounting structure is arranged between the crown (3) and the implant (1), and a wear-resistant structure is arranged on the surface of the crown (3); the mounting structure comprises a thread groove provided on the implant (1), a thread sleeve (5) is fixedly connected to the base (2), the thread groove is matched with the thread sleeve (5); the wear-resistant structure comprises a grinding layer (12) fixedly connected to the crown (3), the grinding layer (12) is a zirconia layer, a groove plate (11) is adhered to the groove of the crown (3), and the groove plate (11) is a glass ionomer resin plate.

2. The zirconia all-ceramic tooth according to claim 1, characterized in that: The implant (1) is fixedly connected to a limiting column (4), the limiting column (4) being slidably arranged with the base (2), the crown (3) is fixedly connected to a hexagonal limiting block (8), the hexagonal limiting block (8) being provided with a limiting groove, the limiting groove being adapted to the limiting column (4).

3. The zirconia all-ceramic tooth according to claim 2, characterized in that: The base (2) is provided with a hexagonal groove, the hexagonal groove being compatible with a hexagonal stop block (8), the hexagonal groove being provided with three circumferentially evenly distributed mounting grooves (6), the hexagonal stop block (8) being fixedly connected with three mounting plates (9), the mounting plates (9) being compatible with the mounting grooves (6).

4. The zirconia all-ceramic tooth according to claim 3, characterized in that: A connecting sleeve (10) is fixedly connected to the crown (3), four connecting grooves (7) evenly distributed around the circumference are formed on the base (2), and an adhesive resin is poured into the connecting sleeve (10).

5. The zirconia all-ceramic tooth according to claim 4, characterized in that: An interlayer (13) is fixedly connected inside the grinding layer (12), the interlayer (13) is a light-curing resin, an inner core (14) is fixedly connected inside the interlayer (13), the inner core (14) is fixedly connected to the tooth crown (3), and the inner core (14) is a zirconium oxide layer.

6. The zirconia all-ceramic tooth according to claim 5, characterized in that: An adhesive groove is provided in the groove of the tooth crown (3), and an adhesive resin is injected into the adhesive groove. A fixing column (15) is fixedly connected to the groove plate (11), and the fixing column (15) is located in the middle of the tooth crown (3). The connection grooves (7) are distributed around the base (2).

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