A zirconia ceramic implant

Abstract

The utility model relates to oral cavity prosthetic technology field, concretely discloses a kind of zirconia ceramic implant, cup body is fixedly nested in artificial tooth crown bottom, cup body bottom surface middle part is equipped with polygonal hole two;Connecting sleeve includes the disc body of sliding sleeve in cup body, the prism of integrally formed in the middle part of disc body bottom surface and with polygonal hole two sliding sleeve, and the threaded hole of being equipped in the center of disc body and prism;Screw and threaded hole thread sleeve joint match;Abutment bottom thread sleeve joint in middle part of implanting part, abutment top surface is equipped with the polygonal hole one of sliding sleeve joint match with prism, abutment middle part is located polygonal hole below in turn and is equipped with small-diameter hole cavity and large-diameter hole cavity, the end of screw is movably sleeve joint in large-diameter hole cavity and support in small-diameter hole cavity bottom end outer edge part.The problem that artificial tooth crown is prone to loose is preferably solved.

Description

Technical Field

[0001] This utility model relates to the field of oral restoration technology, specifically to a zirconia ceramic implant. Background Technology

[0002] Zirconia ceramic implants are increasingly used in the field of dental implantology due to their excellent biocompatibility, superior aesthetic performance (color close to natural teeth), and avoidance of the risk of metal allergies.

[0003] Currently, commonly used zirconia ceramic prostheses are generally one-piece structures, typically implanted directly into the alveolar bone during installation. However, after long-term use, the artificial teeth may wear down, making replacement difficult and causing significant pain for the patient.

[0004] Some new types of prostheses use threaded connections between the artificial crown and the abutment, making the artificial crown easy to replace. However, due to prolonged chewing, this threaded connection structure is prone to loosening, and may even cause the artificial tooth to fall out automatically, compromising safety. Utility Model Content

[0005] The purpose of this invention is to provide a zirconia ceramic implant to solve the problem of loosening of artificial crowns in current zirconia ceramic restorative dentures.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a zirconia ceramic implant, comprising an implantation part, an abutment, and an artificial crown, a cup body fixedly nested in the bottom of the artificial crown, and a polygonal hole II provided in the middle of the bottom surface of the cup body; a connecting sleeve comprising a disc body slidably fitted into the cup body, a prism integrally formed in the middle of the bottom surface of the disc body and slidably fitted with the polygonal hole II, and a threaded through hole provided in the center of the disc body and the prism; a screw threadedly fitted into the threaded through hole; the bottom of the abutment is threadedly fitted into the middle of the implantation part, the top surface of the abutment is provided with a polygonal hole I that slidably fitted with the prism, and the middle part of the abutment, below the polygonal hole I, is provided with a small-diameter cavity and a large-diameter cavity in sequence, and the end of the screw is movably fitted into the large-diameter cavity and supported on the outer edge of the bottom end of the small-diameter cavity.

[0007] Preferably, the outer wall of the implantation part is provided with an external thread that engages with the pressure groove thread, and the inner cavity of the implantation part is provided with a threaded slot hole that matches the threaded connection of the bottom of the base.

[0008] Preferably, the base includes a support platform and a threaded post integrally formed in the middle of the bottom surface of the support platform and threadedly fitted with the threaded slot hole. The polygonal hole is located in the middle of the support platform, and the small-diameter cavity and the large-diameter cavity are sequentially located in the middle of the threaded post along the vertical direction.

[0009] Preferably, the groove shape at the end of the screw is one of the following: slotted, cross-shaped, star-shaped, internal hexagonal, or star-shaped.

[0010] Preferably, the internal thread of the threaded slot is one of a fine thread, a Spielberg thread, a wedge thread, or a sawtooth thread.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model relates to an artificial crown in a zirconia ceramic implant, which is assembled and connected to the abutment via a prism and internally fixed with screws, effectively solving the problem of easy loosening of artificial crowns. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the implantation part of this utility model; Figure 3 This is a three-dimensional structural diagram of the base of this utility model; Figure 4 This is a cross-sectional view of the base of this utility model; Figure 5 This is a three-dimensional structural diagram of the cup body of this utility model; Figure 6 This is a three-dimensional structural diagram of the connecting sleeve of this utility model.

[0013] In the diagram: 1-Implantation site; 1.1-Threaded groove hole; 2-Base; 2.1-Support platform; 2.1.1-Polygonal hole one; 2.2-Threaded post; 2.2.1-Small diameter cavity; 2.2.2-Large diameter cavity; 3- Artificial crowns; 4-Cup body; 4.1-Polygonal hole two; 5-Connecting sleeve; 5.1-Disc body; 5.2-Pyramid; 5.3-Threaded through hole; 6-Screw. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-6This utility model provides a technical solution: a zirconia ceramic implant, including an implant portion 1, an abutment 2, and an artificial crown 3. The implant portion 1 has an external thread on its outer wall that engages with a groove thread, and a threaded slot 1.1 in the center of its inner cavity that matches the threaded bottom of the abutment 2. The abutment 2 includes a support platform 2.1 and a threaded post 2.2 integrally formed in the center of the bottom surface of the support platform 2.1 and threadedly engaged with the threaded slot 1.1. A polygonal hole 2.1.1 is located in the center of the support platform 2.1, and small-diameter cavities 2.2.1 and large-diameter cavities 2.2.2 are sequentially arranged vertically in the center of the threaded post 2.2. The internal thread of the threaded slot 1.1 is one of a fine thread, a Spiral thread, a wedge thread, or a sawtooth thread. That is, the implant portion 1 is anchored in the alveolar bone by the external thread on its outer wall. When the base 2 and the implant 1 are assembled and connected, the connection is achieved by threaded connection between the threaded post 2.2 and the threaded slot 1.1. The length of the connection between the threaded post 2.2 and the threaded slot 1.1 can be guaranteed, and the anti-loosening thread is adopted to ensure a firm connection between the base 2 and the implant 1.

[0016] The cup body 4 is fixedly nested at the bottom of the artificial crown 3, and a polygonal hole 4.1 is provided in the middle of the bottom surface of the cup body 4. The cup body 4 is fixed in the cavity at the bottom of the artificial crown 3 by adhesive bonding.

[0017] The connecting sleeve 5 includes a disc 5.1 that is slidably fitted inside the cup body 4, a prism 5.2 integrally formed in the middle of the bottom surface of the disc 5.1 and slidably fitted with the polygonal hole 2.1.1, and a threaded through hole 5.3 located at the center of the disc 5.1 and the prism 5.2. The bottom end of the prism 5.2 is slidably fitted with the polygonal hole 2.1.1.

[0018] Screw 6 is threaded into threaded hole 5.3; the end of screw 6 is movably fitted into the large-diameter cavity 2.2.2 and supported on the outer edge of the bottom end of the small-diameter cavity 2.2.1. The groove shape of the end of screw 6 is one of slotted, cross-shaped, star-shaped, hexagonal, or star-shaped.

[0019] In summary, the artificial crown 3, the cup body 4, and the connecting sleeve 5 constitute a composite crown. That is, the finished crown assembly includes the artificial crown 3, the cup body 4, and the connecting sleeve 5.

[0020] During installation, first insert the prism 5.2 at the bottom of the connecting sleeve 5 into the polygonal hole 2.1.1, then insert the screw 6 into the large-diameter cavity 2.2.2. The screw shank of the screw 6 passes through the small-diameter cavity 2.2.1 and engages with the threaded through hole 5.3.

[0021] The screw 6 is tightened using a tool so that the end of the screw 6 is pressed against the outer edge of the bottom of the small diameter cavity 2.2.1, thus completing the assembly and connection between the crown assembly and the abutment 2.

[0022] Then the overall structure of the crown assembly and abutment 2 is assembled into the implant part 1, which is already anchored in the alveolar bone.

[0023] When the artificial crown 3 needs to be replaced, the entire structure of the crown assembly and abutment 2 is removed from the implant 1. Then, the abutment 2 is disassembled from the crown assembly by loosening the screws 6, thus completing the removal of the crown. A new crown assembly can then be installed following the same steps.

[0024] It should be noted that in this article, relational terms such as first and second are only used to refer to... Distinguishing one entity or operation from another does not necessarily require or imply any such actual relationship or order between those entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A zirconia ceramic implant, comprising an implantation portion (1), an abutment (2), and an artificial crown (3), characterized in that, Also includes: The cup body (4) is fixedly nested at the bottom of the artificial crown (3), and the bottom surface of the cup body (4) is provided with a polygonal hole (4.1). The connecting sleeve (5) includes a disc (5.1) that is slidably fitted inside the cup body (4), a prism (5.2) integrally formed in the middle of the bottom surface of the disc (5.1) and slidably fitted with the polygonal hole (4.1), and a threaded through hole (5.3) provided in the center of the disc (5.1) and the prism (5.2). The screw (6) is threaded and fitted into the threaded through hole (5.3); The base (2) is threaded at the bottom and fitted into the middle of the implant (1). The top surface of the base (2) is provided with a polygonal hole that slides and matches the prism (5.2). 2.1.1), the center of the base (2) is located at the polygonal hole one ( 2.1.1) A small-diameter cavity (2.2.1) and a large-diameter cavity (2.2.2) are provided below in sequence. The end of the screw (6) is movably sleeved in the large-diameter cavity (2.2.2) and supported on the outer edge of the bottom end of the small-diameter cavity (2.2.1).

2. The zirconia ceramic implant according to claim 1, characterized in that: The outer wall of the implant part (1) is provided with an external thread that engages with the groove thread, and the inner cavity of the implant part (1) is provided with a threaded slot (1.1) that matches the bottom thread of the base (2).

3. The zirconia ceramic implant according to claim 2, characterized in that: The base (2) includes a support platform (2.1) and a threaded post (2.2) integrally formed in the middle of the bottom surface of the support platform (2.1) and threadedly fitted into the threaded slot (1.1). The polygonal hole ( 2.1.1) The small-diameter cavity (2.2.1) and the large-diameter cavity (2.2.2) are arranged vertically in the middle of the threaded column (2.2).

4. The zirconia ceramic implant according to claim 1, characterized in that: The groove at the end of the screw (6) is one of the following: slotted, cross-shaped, star-shaped, internal hexagonal, or star-shaped.

5. A zirconia ceramic implant according to claim 2, characterized in that: The internal thread of the threaded slot (1.1) is one of the following: fine thread, Spielberg thread, wedge thread, or sawtooth thread.

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